^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-or-later
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * libata-scsi.c - helper library for ATA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright 2003-2004 Red Hat, Inc. All rights reserved.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * Copyright 2003-2004 Jeff Garzik
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * libata documentation is available via 'make {ps|pdf}docs',
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) * as Documentation/driver-api/libata.rst
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) * Hardware documentation available from
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) * - http://www.t10.org/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) * - http://www.t13.org/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/compat.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <linux/blkdev.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include <linux/spinlock.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include <linux/export.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #include <scsi/scsi.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #include <scsi/scsi_host.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #include <scsi/scsi_cmnd.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #include <scsi/scsi_eh.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #include <scsi/scsi_device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #include <scsi/scsi_tcq.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) #include <scsi/scsi_transport.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) #include <linux/libata.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) #include <linux/hdreg.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) #include <linux/uaccess.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) #include <linux/suspend.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) #include <asm/unaligned.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) #include <linux/ioprio.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) #include <linux/of.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) #include "libata.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) #include "libata-transport.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) #define ATA_SCSI_RBUF_SIZE 576
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) static DEFINE_SPINLOCK(ata_scsi_rbuf_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) static u8 ata_scsi_rbuf[ATA_SCSI_RBUF_SIZE];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) typedef unsigned int (*ata_xlat_func_t)(struct ata_queued_cmd *qc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) static struct ata_device *__ata_scsi_find_dev(struct ata_port *ap,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) const struct scsi_device *scsidev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) #define RW_RECOVERY_MPAGE 0x1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) #define RW_RECOVERY_MPAGE_LEN 12
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) #define CACHE_MPAGE 0x8
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) #define CACHE_MPAGE_LEN 20
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) #define CONTROL_MPAGE 0xa
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) #define CONTROL_MPAGE_LEN 12
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) #define ALL_MPAGES 0x3f
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) #define ALL_SUB_MPAGES 0xff
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) static const u8 def_rw_recovery_mpage[RW_RECOVERY_MPAGE_LEN] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) RW_RECOVERY_MPAGE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) RW_RECOVERY_MPAGE_LEN - 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) (1 << 7), /* AWRE */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) 0, /* read retry count */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) 0, 0, 0, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) 0, /* write retry count */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) 0, 0, 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) static const u8 def_cache_mpage[CACHE_MPAGE_LEN] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) CACHE_MPAGE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) CACHE_MPAGE_LEN - 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) 0, /* contains WCE, needs to be 0 for logic */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) 0, 0, 0, 0, 0, 0, 0, 0, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) 0, /* contains DRA, needs to be 0 for logic */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) 0, 0, 0, 0, 0, 0, 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) static const u8 def_control_mpage[CONTROL_MPAGE_LEN] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) CONTROL_MPAGE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) CONTROL_MPAGE_LEN - 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) 2, /* DSENSE=0, GLTSD=1 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) 0, /* [QAM+QERR may be 1, see 05-359r1] */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) 0, 0, 0, 0, 0xff, 0xff,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) 0, 30 /* extended self test time, see 05-359r1 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) static ssize_t ata_scsi_park_show(struct device *device,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) struct device_attribute *attr, char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) struct scsi_device *sdev = to_scsi_device(device);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) struct ata_port *ap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) struct ata_link *link;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) struct ata_device *dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) unsigned long now;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) unsigned int msecs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) int rc = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) ap = ata_shost_to_port(sdev->host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) spin_lock_irq(ap->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) dev = ata_scsi_find_dev(ap, sdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) if (!dev) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) rc = -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) goto unlock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) if (dev->flags & ATA_DFLAG_NO_UNLOAD) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) rc = -EOPNOTSUPP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) goto unlock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) link = dev->link;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) now = jiffies;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) if (ap->pflags & ATA_PFLAG_EH_IN_PROGRESS &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) link->eh_context.unloaded_mask & (1 << dev->devno) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) time_after(dev->unpark_deadline, now))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) msecs = jiffies_to_msecs(dev->unpark_deadline - now);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) msecs = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) unlock:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) spin_unlock_irq(ap->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) return rc ? rc : snprintf(buf, 20, "%u\n", msecs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) static ssize_t ata_scsi_park_store(struct device *device,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) const char *buf, size_t len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) struct scsi_device *sdev = to_scsi_device(device);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) struct ata_port *ap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) struct ata_device *dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) long int input;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) rc = kstrtol(buf, 10, &input);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) if (input < -2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) if (input > ATA_TMOUT_MAX_PARK) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) rc = -EOVERFLOW;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) input = ATA_TMOUT_MAX_PARK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) ap = ata_shost_to_port(sdev->host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) spin_lock_irqsave(ap->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) dev = ata_scsi_find_dev(ap, sdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) if (unlikely(!dev)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) rc = -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) goto unlock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) if (dev->class != ATA_DEV_ATA &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) dev->class != ATA_DEV_ZAC) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) rc = -EOPNOTSUPP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) goto unlock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) if (input >= 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) if (dev->flags & ATA_DFLAG_NO_UNLOAD) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) rc = -EOPNOTSUPP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) goto unlock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) dev->unpark_deadline = ata_deadline(jiffies, input);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) dev->link->eh_info.dev_action[dev->devno] |= ATA_EH_PARK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) ata_port_schedule_eh(ap);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) complete(&ap->park_req_pending);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) switch (input) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) case -1:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) dev->flags &= ~ATA_DFLAG_NO_UNLOAD;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) case -2:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) dev->flags |= ATA_DFLAG_NO_UNLOAD;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) unlock:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) spin_unlock_irqrestore(ap->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) return rc ? rc : len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) DEVICE_ATTR(unload_heads, S_IRUGO | S_IWUSR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) ata_scsi_park_show, ata_scsi_park_store);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) EXPORT_SYMBOL_GPL(dev_attr_unload_heads);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) void ata_scsi_set_sense(struct ata_device *dev, struct scsi_cmnd *cmd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) u8 sk, u8 asc, u8 ascq)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) bool d_sense = (dev->flags & ATA_DFLAG_D_SENSE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) if (!cmd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) cmd->result = (DRIVER_SENSE << 24) | SAM_STAT_CHECK_CONDITION;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) scsi_build_sense_buffer(d_sense, cmd->sense_buffer, sk, asc, ascq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) void ata_scsi_set_sense_information(struct ata_device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) struct scsi_cmnd *cmd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) const struct ata_taskfile *tf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) u64 information;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) if (!cmd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) information = ata_tf_read_block(tf, dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) if (information == U64_MAX)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) scsi_set_sense_information(cmd->sense_buffer,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) SCSI_SENSE_BUFFERSIZE, information);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) static void ata_scsi_set_invalid_field(struct ata_device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) struct scsi_cmnd *cmd, u16 field, u8 bit)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) ata_scsi_set_sense(dev, cmd, ILLEGAL_REQUEST, 0x24, 0x0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) /* "Invalid field in CDB" */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) scsi_set_sense_field_pointer(cmd->sense_buffer, SCSI_SENSE_BUFFERSIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) field, bit, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) static void ata_scsi_set_invalid_parameter(struct ata_device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) struct scsi_cmnd *cmd, u16 field)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) /* "Invalid field in parameter list" */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) ata_scsi_set_sense(dev, cmd, ILLEGAL_REQUEST, 0x26, 0x0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) scsi_set_sense_field_pointer(cmd->sense_buffer, SCSI_SENSE_BUFFERSIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) field, 0xff, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) struct device_attribute *ata_common_sdev_attrs[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) &dev_attr_unload_heads,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) NULL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) EXPORT_SYMBOL_GPL(ata_common_sdev_attrs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) * ata_std_bios_param - generic bios head/sector/cylinder calculator used by sd.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) * @sdev: SCSI device for which BIOS geometry is to be determined
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) * @bdev: block device associated with @sdev
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) * @capacity: capacity of SCSI device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) * @geom: location to which geometry will be output
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) * Generic bios head/sector/cylinder calculator
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) * used by sd. Most BIOSes nowadays expect a XXX/255/16 (CHS)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) * mapping. Some situations may arise where the disk is not
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) * bootable if this is not used.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) * LOCKING:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) * Defined by the SCSI layer. We don't really care.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) * RETURNS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) * Zero.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) int ata_std_bios_param(struct scsi_device *sdev, struct block_device *bdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) sector_t capacity, int geom[])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) geom[0] = 255;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) geom[1] = 63;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) sector_div(capacity, 255*63);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) geom[2] = capacity;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) EXPORT_SYMBOL_GPL(ata_std_bios_param);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) * ata_scsi_unlock_native_capacity - unlock native capacity
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) * @sdev: SCSI device to adjust device capacity for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) * This function is called if a partition on @sdev extends beyond
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) * the end of the device. It requests EH to unlock HPA.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) * LOCKING:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) * Defined by the SCSI layer. Might sleep.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) void ata_scsi_unlock_native_capacity(struct scsi_device *sdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) struct ata_port *ap = ata_shost_to_port(sdev->host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) struct ata_device *dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) spin_lock_irqsave(ap->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) dev = ata_scsi_find_dev(ap, sdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) if (dev && dev->n_sectors < dev->n_native_sectors) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) dev->flags |= ATA_DFLAG_UNLOCK_HPA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) dev->link->eh_info.action |= ATA_EH_RESET;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) ata_port_schedule_eh(ap);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) spin_unlock_irqrestore(ap->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) ata_port_wait_eh(ap);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) EXPORT_SYMBOL_GPL(ata_scsi_unlock_native_capacity);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) * ata_get_identity - Handler for HDIO_GET_IDENTITY ioctl
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) * @ap: target port
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) * @sdev: SCSI device to get identify data for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) * @arg: User buffer area for identify data
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) * LOCKING:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) * Defined by the SCSI layer. We don't really care.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) * RETURNS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) * Zero on success, negative errno on error.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) static int ata_get_identity(struct ata_port *ap, struct scsi_device *sdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) void __user *arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) struct ata_device *dev = ata_scsi_find_dev(ap, sdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) u16 __user *dst = arg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) char buf[40];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) if (!dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) return -ENOMSG;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) if (copy_to_user(dst, dev->id, ATA_ID_WORDS * sizeof(u16)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) ata_id_string(dev->id, buf, ATA_ID_PROD, ATA_ID_PROD_LEN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) if (copy_to_user(dst + ATA_ID_PROD, buf, ATA_ID_PROD_LEN))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) ata_id_string(dev->id, buf, ATA_ID_FW_REV, ATA_ID_FW_REV_LEN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) if (copy_to_user(dst + ATA_ID_FW_REV, buf, ATA_ID_FW_REV_LEN))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) ata_id_string(dev->id, buf, ATA_ID_SERNO, ATA_ID_SERNO_LEN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) if (copy_to_user(dst + ATA_ID_SERNO, buf, ATA_ID_SERNO_LEN))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) * ata_cmd_ioctl - Handler for HDIO_DRIVE_CMD ioctl
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) * @scsidev: Device to which we are issuing command
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) * @arg: User provided data for issuing command
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) * LOCKING:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) * Defined by the SCSI layer. We don't really care.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) * RETURNS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) * Zero on success, negative errno on error.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) int ata_cmd_ioctl(struct scsi_device *scsidev, void __user *arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) int rc = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) u8 sensebuf[SCSI_SENSE_BUFFERSIZE];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) u8 scsi_cmd[MAX_COMMAND_SIZE];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) u8 args[4], *argbuf = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) int argsize = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) enum dma_data_direction data_dir;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) struct scsi_sense_hdr sshdr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) int cmd_result;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) if (arg == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) if (copy_from_user(args, arg, sizeof(args)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) memset(sensebuf, 0, sizeof(sensebuf));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) memset(scsi_cmd, 0, sizeof(scsi_cmd));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) if (args[3]) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) argsize = ATA_SECT_SIZE * args[3];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) argbuf = kmalloc(argsize, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) if (argbuf == NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) rc = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) goto error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) scsi_cmd[1] = (4 << 1); /* PIO Data-in */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) scsi_cmd[2] = 0x0e; /* no off.line or cc, read from dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) block count in sector count field */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) data_dir = DMA_FROM_DEVICE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) scsi_cmd[1] = (3 << 1); /* Non-data */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) scsi_cmd[2] = 0x20; /* cc but no off.line or data xfer */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) data_dir = DMA_NONE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) scsi_cmd[0] = ATA_16;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) scsi_cmd[4] = args[2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) if (args[0] == ATA_CMD_SMART) { /* hack -- ide driver does this too */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) scsi_cmd[6] = args[3];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) scsi_cmd[8] = args[1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) scsi_cmd[10] = ATA_SMART_LBAM_PASS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) scsi_cmd[12] = ATA_SMART_LBAH_PASS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) scsi_cmd[6] = args[1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) scsi_cmd[14] = args[0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) /* Good values for timeout and retries? Values below
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) from scsi_ioctl_send_command() for default case... */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) cmd_result = scsi_execute(scsidev, scsi_cmd, data_dir, argbuf, argsize,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) sensebuf, &sshdr, (10*HZ), 5, 0, 0, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) if (driver_byte(cmd_result) == DRIVER_SENSE) {/* sense data available */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) u8 *desc = sensebuf + 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) cmd_result &= ~(0xFF<<24); /* DRIVER_SENSE is not an error */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) /* If we set cc then ATA pass-through will cause a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) * check condition even if no error. Filter that. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) if (cmd_result & SAM_STAT_CHECK_CONDITION) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) if (sshdr.sense_key == RECOVERED_ERROR &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) sshdr.asc == 0 && sshdr.ascq == 0x1d)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) cmd_result &= ~SAM_STAT_CHECK_CONDITION;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) /* Send userspace a few ATA registers (same as drivers/ide) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) if (sensebuf[0] == 0x72 && /* format is "descriptor" */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) desc[0] == 0x09) { /* code is "ATA Descriptor" */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) args[0] = desc[13]; /* status */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) args[1] = desc[3]; /* error */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) args[2] = desc[5]; /* sector count (0:7) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) if (copy_to_user(arg, args, sizeof(args)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) rc = -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) if (cmd_result) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) rc = -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) goto error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) if ((argbuf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) && copy_to_user(arg + sizeof(args), argbuf, argsize))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) rc = -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) error:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) kfree(argbuf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) * ata_task_ioctl - Handler for HDIO_DRIVE_TASK ioctl
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) * @scsidev: Device to which we are issuing command
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) * @arg: User provided data for issuing command
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) * LOCKING:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) * Defined by the SCSI layer. We don't really care.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) * RETURNS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) * Zero on success, negative errno on error.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) int ata_task_ioctl(struct scsi_device *scsidev, void __user *arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) int rc = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) u8 sensebuf[SCSI_SENSE_BUFFERSIZE];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) u8 scsi_cmd[MAX_COMMAND_SIZE];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) u8 args[7];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) struct scsi_sense_hdr sshdr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) int cmd_result;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) if (arg == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) if (copy_from_user(args, arg, sizeof(args)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) memset(sensebuf, 0, sizeof(sensebuf));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) memset(scsi_cmd, 0, sizeof(scsi_cmd));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) scsi_cmd[0] = ATA_16;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) scsi_cmd[1] = (3 << 1); /* Non-data */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) scsi_cmd[2] = 0x20; /* cc but no off.line or data xfer */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) scsi_cmd[4] = args[1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) scsi_cmd[6] = args[2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) scsi_cmd[8] = args[3];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) scsi_cmd[10] = args[4];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) scsi_cmd[12] = args[5];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) scsi_cmd[13] = args[6] & 0x4f;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) scsi_cmd[14] = args[0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) /* Good values for timeout and retries? Values below
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) from scsi_ioctl_send_command() for default case... */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) cmd_result = scsi_execute(scsidev, scsi_cmd, DMA_NONE, NULL, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) sensebuf, &sshdr, (10*HZ), 5, 0, 0, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) if (driver_byte(cmd_result) == DRIVER_SENSE) {/* sense data available */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) u8 *desc = sensebuf + 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) cmd_result &= ~(0xFF<<24); /* DRIVER_SENSE is not an error */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) /* If we set cc then ATA pass-through will cause a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) * check condition even if no error. Filter that. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) if (cmd_result & SAM_STAT_CHECK_CONDITION) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) if (sshdr.sense_key == RECOVERED_ERROR &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) sshdr.asc == 0 && sshdr.ascq == 0x1d)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) cmd_result &= ~SAM_STAT_CHECK_CONDITION;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) /* Send userspace ATA registers */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) if (sensebuf[0] == 0x72 && /* format is "descriptor" */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) desc[0] == 0x09) {/* code is "ATA Descriptor" */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) args[0] = desc[13]; /* status */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) args[1] = desc[3]; /* error */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) args[2] = desc[5]; /* sector count (0:7) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) args[3] = desc[7]; /* lbal */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) args[4] = desc[9]; /* lbam */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) args[5] = desc[11]; /* lbah */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) args[6] = desc[12]; /* select */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) if (copy_to_user(arg, args, sizeof(args)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) rc = -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) if (cmd_result) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) rc = -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) goto error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) error:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) static int ata_ioc32(struct ata_port *ap)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) if (ap->flags & ATA_FLAG_PIO_DMA)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) if (ap->pflags & ATA_PFLAG_PIO32)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539) * This handles both native and compat commands, so anything added
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) * here must have a compatible argument, or check in_compat_syscall()
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542) int ata_sas_scsi_ioctl(struct ata_port *ap, struct scsi_device *scsidev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543) unsigned int cmd, void __user *arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545) unsigned long val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546) int rc = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549) switch (cmd) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) case HDIO_GET_32BIT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551) spin_lock_irqsave(ap->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552) val = ata_ioc32(ap);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553) spin_unlock_irqrestore(ap->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) #ifdef CONFIG_COMPAT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) if (in_compat_syscall())
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556) return put_user(val, (compat_ulong_t __user *)arg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558) return put_user(val, (unsigned long __user *)arg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560) case HDIO_SET_32BIT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561) val = (unsigned long) arg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562) rc = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563) spin_lock_irqsave(ap->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564) if (ap->pflags & ATA_PFLAG_PIO32CHANGE) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565) if (val)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566) ap->pflags |= ATA_PFLAG_PIO32;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568) ap->pflags &= ~ATA_PFLAG_PIO32;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570) if (val != ata_ioc32(ap))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571) rc = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573) spin_unlock_irqrestore(ap->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576) case HDIO_GET_IDENTITY:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577) return ata_get_identity(ap, scsidev, arg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579) case HDIO_DRIVE_CMD:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580) if (!capable(CAP_SYS_ADMIN) || !capable(CAP_SYS_RAWIO))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581) return -EACCES;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582) return ata_cmd_ioctl(scsidev, arg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584) case HDIO_DRIVE_TASK:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585) if (!capable(CAP_SYS_ADMIN) || !capable(CAP_SYS_RAWIO))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586) return -EACCES;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587) return ata_task_ioctl(scsidev, arg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590) rc = -ENOTTY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 593)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 594) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 595) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 596) EXPORT_SYMBOL_GPL(ata_sas_scsi_ioctl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 597)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 598) int ata_scsi_ioctl(struct scsi_device *scsidev, unsigned int cmd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 599) void __user *arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 600) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 601) return ata_sas_scsi_ioctl(ata_shost_to_port(scsidev->host),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 602) scsidev, cmd, arg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 603) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 604) EXPORT_SYMBOL_GPL(ata_scsi_ioctl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 605)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 606) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 607) * ata_scsi_qc_new - acquire new ata_queued_cmd reference
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 608) * @dev: ATA device to which the new command is attached
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 609) * @cmd: SCSI command that originated this ATA command
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 610) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 611) * Obtain a reference to an unused ata_queued_cmd structure,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 612) * which is the basic libata structure representing a single
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 613) * ATA command sent to the hardware.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 614) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 615) * If a command was available, fill in the SCSI-specific
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 616) * portions of the structure with information on the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 617) * current command.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 618) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 619) * LOCKING:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 620) * spin_lock_irqsave(host lock)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 621) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 622) * RETURNS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 623) * Command allocated, or %NULL if none available.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 624) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 625) static struct ata_queued_cmd *ata_scsi_qc_new(struct ata_device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 626) struct scsi_cmnd *cmd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 627) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 628) struct ata_queued_cmd *qc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 629)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 630) qc = ata_qc_new_init(dev, cmd->request->tag);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 631) if (qc) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 632) qc->scsicmd = cmd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 633) qc->scsidone = cmd->scsi_done;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 634)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 635) qc->sg = scsi_sglist(cmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 636) qc->n_elem = scsi_sg_count(cmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 637)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 638) if (cmd->request->rq_flags & RQF_QUIET)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 639) qc->flags |= ATA_QCFLAG_QUIET;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 640) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 641) cmd->result = (DID_OK << 16) | (QUEUE_FULL << 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 642) cmd->scsi_done(cmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 643) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 644)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 645) return qc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 646) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 647)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 648) static void ata_qc_set_pc_nbytes(struct ata_queued_cmd *qc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 649) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 650) struct scsi_cmnd *scmd = qc->scsicmd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 651)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 652) qc->extrabytes = scmd->extra_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 653) qc->nbytes = scsi_bufflen(scmd) + qc->extrabytes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 654) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 655)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 656) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 657) * ata_dump_status - user friendly display of error info
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 658) * @id: id of the port in question
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 659) * @tf: ptr to filled out taskfile
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 660) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 661) * Decode and dump the ATA error/status registers for the user so
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 662) * that they have some idea what really happened at the non
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 663) * make-believe layer.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 664) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 665) * LOCKING:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 666) * inherited from caller
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 667) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 668) static void ata_dump_status(unsigned id, struct ata_taskfile *tf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 669) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 670) u8 stat = tf->command, err = tf->feature;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 671)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 672) pr_warn("ata%u: status=0x%02x { ", id, stat);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 673) if (stat & ATA_BUSY) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 674) pr_cont("Busy }\n"); /* Data is not valid in this case */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 675) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 676) if (stat & ATA_DRDY) pr_cont("DriveReady ");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 677) if (stat & ATA_DF) pr_cont("DeviceFault ");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 678) if (stat & ATA_DSC) pr_cont("SeekComplete ");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 679) if (stat & ATA_DRQ) pr_cont("DataRequest ");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 680) if (stat & ATA_CORR) pr_cont("CorrectedError ");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 681) if (stat & ATA_SENSE) pr_cont("Sense ");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 682) if (stat & ATA_ERR) pr_cont("Error ");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 683) pr_cont("}\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 684)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 685) if (err) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 686) pr_warn("ata%u: error=0x%02x { ", id, err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 687) if (err & ATA_ABORTED) pr_cont("DriveStatusError ");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 688) if (err & ATA_ICRC) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 689) if (err & ATA_ABORTED)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 690) pr_cont("BadCRC ");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 691) else pr_cont("Sector ");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 692) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 693) if (err & ATA_UNC) pr_cont("UncorrectableError ");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 694) if (err & ATA_IDNF) pr_cont("SectorIdNotFound ");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 695) if (err & ATA_TRK0NF) pr_cont("TrackZeroNotFound ");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 696) if (err & ATA_AMNF) pr_cont("AddrMarkNotFound ");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 697) pr_cont("}\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 698) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 699) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 700) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 701)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 702) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 703) * ata_to_sense_error - convert ATA error to SCSI error
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 704) * @id: ATA device number
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 705) * @drv_stat: value contained in ATA status register
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 706) * @drv_err: value contained in ATA error register
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 707) * @sk: the sense key we'll fill out
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 708) * @asc: the additional sense code we'll fill out
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 709) * @ascq: the additional sense code qualifier we'll fill out
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 710) * @verbose: be verbose
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 711) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 712) * Converts an ATA error into a SCSI error. Fill out pointers to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 713) * SK, ASC, and ASCQ bytes for later use in fixed or descriptor
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 714) * format sense blocks.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 715) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 716) * LOCKING:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 717) * spin_lock_irqsave(host lock)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 718) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 719) static void ata_to_sense_error(unsigned id, u8 drv_stat, u8 drv_err, u8 *sk,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 720) u8 *asc, u8 *ascq, int verbose)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 721) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 722) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 723)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 724) /* Based on the 3ware driver translation table */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 725) static const unsigned char sense_table[][4] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 726) /* BBD|ECC|ID|MAR */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 727) {0xd1, ABORTED_COMMAND, 0x00, 0x00},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 728) // Device busy Aborted command
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 729) /* BBD|ECC|ID */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 730) {0xd0, ABORTED_COMMAND, 0x00, 0x00},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 731) // Device busy Aborted command
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 732) /* ECC|MC|MARK */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 733) {0x61, HARDWARE_ERROR, 0x00, 0x00},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 734) // Device fault Hardware error
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 735) /* ICRC|ABRT */ /* NB: ICRC & !ABRT is BBD */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 736) {0x84, ABORTED_COMMAND, 0x47, 0x00},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 737) // Data CRC error SCSI parity error
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 738) /* MC|ID|ABRT|TRK0|MARK */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 739) {0x37, NOT_READY, 0x04, 0x00},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 740) // Unit offline Not ready
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 741) /* MCR|MARK */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 742) {0x09, NOT_READY, 0x04, 0x00},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 743) // Unrecovered disk error Not ready
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 744) /* Bad address mark */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 745) {0x01, MEDIUM_ERROR, 0x13, 0x00},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 746) // Address mark not found for data field
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 747) /* TRK0 - Track 0 not found */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 748) {0x02, HARDWARE_ERROR, 0x00, 0x00},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 749) // Hardware error
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 750) /* Abort: 0x04 is not translated here, see below */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 751) /* Media change request */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 752) {0x08, NOT_READY, 0x04, 0x00},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 753) // FIXME: faking offline
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 754) /* SRV/IDNF - ID not found */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 755) {0x10, ILLEGAL_REQUEST, 0x21, 0x00},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 756) // Logical address out of range
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 757) /* MC - Media Changed */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 758) {0x20, UNIT_ATTENTION, 0x28, 0x00},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 759) // Not ready to ready change, medium may have changed
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 760) /* ECC - Uncorrectable ECC error */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 761) {0x40, MEDIUM_ERROR, 0x11, 0x04},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 762) // Unrecovered read error
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 763) /* BBD - block marked bad */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 764) {0x80, MEDIUM_ERROR, 0x11, 0x04},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 765) // Block marked bad Medium error, unrecovered read error
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 766) {0xFF, 0xFF, 0xFF, 0xFF}, // END mark
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 767) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 768) static const unsigned char stat_table[][4] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 769) /* Must be first because BUSY means no other bits valid */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 770) {0x80, ABORTED_COMMAND, 0x47, 0x00},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 771) // Busy, fake parity for now
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 772) {0x40, ILLEGAL_REQUEST, 0x21, 0x04},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 773) // Device ready, unaligned write command
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 774) {0x20, HARDWARE_ERROR, 0x44, 0x00},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 775) // Device fault, internal target failure
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 776) {0x08, ABORTED_COMMAND, 0x47, 0x00},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 777) // Timed out in xfer, fake parity for now
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 778) {0x04, RECOVERED_ERROR, 0x11, 0x00},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 779) // Recovered ECC error Medium error, recovered
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 780) {0xFF, 0xFF, 0xFF, 0xFF}, // END mark
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 781) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 782)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 783) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 784) * Is this an error we can process/parse
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 785) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 786) if (drv_stat & ATA_BUSY) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 787) drv_err = 0; /* Ignore the err bits, they're invalid */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 788) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 789)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 790) if (drv_err) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 791) /* Look for drv_err */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 792) for (i = 0; sense_table[i][0] != 0xFF; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 793) /* Look for best matches first */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 794) if ((sense_table[i][0] & drv_err) ==
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 795) sense_table[i][0]) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 796) *sk = sense_table[i][1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 797) *asc = sense_table[i][2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 798) *ascq = sense_table[i][3];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 799) goto translate_done;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 800) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 801) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 802) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 803)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 804) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 805) * Fall back to interpreting status bits. Note that if the drv_err
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 806) * has only the ABRT bit set, we decode drv_stat. ABRT by itself
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 807) * is not descriptive enough.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 808) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 809) for (i = 0; stat_table[i][0] != 0xFF; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 810) if (stat_table[i][0] & drv_stat) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 811) *sk = stat_table[i][1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 812) *asc = stat_table[i][2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 813) *ascq = stat_table[i][3];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 814) goto translate_done;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 815) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 816) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 817)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 818) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 819) * We need a sensible error return here, which is tricky, and one
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 820) * that won't cause people to do things like return a disk wrongly.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 821) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 822) *sk = ABORTED_COMMAND;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 823) *asc = 0x00;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 824) *ascq = 0x00;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 825)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 826) translate_done:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 827) if (verbose)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 828) pr_err("ata%u: translated ATA stat/err 0x%02x/%02x to SCSI SK/ASC/ASCQ 0x%x/%02x/%02x\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 829) id, drv_stat, drv_err, *sk, *asc, *ascq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 830) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 831) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 832)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 833) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 834) * ata_gen_passthru_sense - Generate check condition sense block.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 835) * @qc: Command that completed.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 836) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 837) * This function is specific to the ATA descriptor format sense
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 838) * block specified for the ATA pass through commands. Regardless
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 839) * of whether the command errored or not, return a sense
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 840) * block. Copy all controller registers into the sense
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 841) * block. If there was no error, we get the request from an ATA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 842) * passthrough command, so we use the following sense data:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 843) * sk = RECOVERED ERROR
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 844) * asc,ascq = ATA PASS-THROUGH INFORMATION AVAILABLE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 845) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 846) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 847) * LOCKING:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 848) * None.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 849) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 850) static void ata_gen_passthru_sense(struct ata_queued_cmd *qc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 851) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 852) struct scsi_cmnd *cmd = qc->scsicmd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 853) struct ata_taskfile *tf = &qc->result_tf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 854) unsigned char *sb = cmd->sense_buffer;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 855) unsigned char *desc = sb + 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 856) int verbose = qc->ap->ops->error_handler == NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 857) u8 sense_key, asc, ascq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 858)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 859) memset(sb, 0, SCSI_SENSE_BUFFERSIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 860)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 861) cmd->result = (DRIVER_SENSE << 24) | SAM_STAT_CHECK_CONDITION;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 862)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 863) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 864) * Use ata_to_sense_error() to map status register bits
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 865) * onto sense key, asc & ascq.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 866) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 867) if (qc->err_mask ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 868) tf->command & (ATA_BUSY | ATA_DF | ATA_ERR | ATA_DRQ)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 869) ata_to_sense_error(qc->ap->print_id, tf->command, tf->feature,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 870) &sense_key, &asc, &ascq, verbose);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 871) ata_scsi_set_sense(qc->dev, cmd, sense_key, asc, ascq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 872) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 873) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 874) * ATA PASS-THROUGH INFORMATION AVAILABLE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 875) * Always in descriptor format sense.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 876) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 877) scsi_build_sense_buffer(1, cmd->sense_buffer,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 878) RECOVERED_ERROR, 0, 0x1D);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 879) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 880)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 881) if ((cmd->sense_buffer[0] & 0x7f) >= 0x72) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 882) u8 len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 883)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 884) /* descriptor format */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 885) len = sb[7];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 886) desc = (char *)scsi_sense_desc_find(sb, len + 8, 9);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 887) if (!desc) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 888) if (SCSI_SENSE_BUFFERSIZE < len + 14)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 889) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 890) sb[7] = len + 14;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 891) desc = sb + 8 + len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 892) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 893) desc[0] = 9;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 894) desc[1] = 12;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 895) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 896) * Copy registers into sense buffer.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 897) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 898) desc[2] = 0x00;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 899) desc[3] = tf->feature; /* == error reg */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 900) desc[5] = tf->nsect;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 901) desc[7] = tf->lbal;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 902) desc[9] = tf->lbam;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 903) desc[11] = tf->lbah;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 904) desc[12] = tf->device;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 905) desc[13] = tf->command; /* == status reg */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 906)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 907) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 908) * Fill in Extend bit, and the high order bytes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 909) * if applicable.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 910) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 911) if (tf->flags & ATA_TFLAG_LBA48) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 912) desc[2] |= 0x01;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 913) desc[4] = tf->hob_nsect;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 914) desc[6] = tf->hob_lbal;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 915) desc[8] = tf->hob_lbam;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 916) desc[10] = tf->hob_lbah;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 917) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 918) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 919) /* Fixed sense format */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 920) desc[0] = tf->feature;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 921) desc[1] = tf->command; /* status */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 922) desc[2] = tf->device;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 923) desc[3] = tf->nsect;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 924) desc[7] = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 925) if (tf->flags & ATA_TFLAG_LBA48) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 926) desc[8] |= 0x80;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 927) if (tf->hob_nsect)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 928) desc[8] |= 0x40;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 929) if (tf->hob_lbal || tf->hob_lbam || tf->hob_lbah)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 930) desc[8] |= 0x20;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 931) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 932) desc[9] = tf->lbal;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 933) desc[10] = tf->lbam;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 934) desc[11] = tf->lbah;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 935) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 936) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 937)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 938) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 939) * ata_gen_ata_sense - generate a SCSI fixed sense block
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 940) * @qc: Command that we are erroring out
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 941) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 942) * Generate sense block for a failed ATA command @qc. Descriptor
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 943) * format is used to accommodate LBA48 block address.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 944) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 945) * LOCKING:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 946) * None.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 947) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 948) static void ata_gen_ata_sense(struct ata_queued_cmd *qc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 949) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 950) struct ata_device *dev = qc->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 951) struct scsi_cmnd *cmd = qc->scsicmd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 952) struct ata_taskfile *tf = &qc->result_tf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 953) unsigned char *sb = cmd->sense_buffer;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 954) int verbose = qc->ap->ops->error_handler == NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 955) u64 block;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 956) u8 sense_key, asc, ascq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 957)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 958) memset(sb, 0, SCSI_SENSE_BUFFERSIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 959)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 960) cmd->result = (DRIVER_SENSE << 24) | SAM_STAT_CHECK_CONDITION;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 961)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 962) if (ata_dev_disabled(dev)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 963) /* Device disabled after error recovery */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 964) /* LOGICAL UNIT NOT READY, HARD RESET REQUIRED */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 965) ata_scsi_set_sense(dev, cmd, NOT_READY, 0x04, 0x21);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 966) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 967) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 968) /* Use ata_to_sense_error() to map status register bits
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 969) * onto sense key, asc & ascq.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 970) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 971) if (qc->err_mask ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 972) tf->command & (ATA_BUSY | ATA_DF | ATA_ERR | ATA_DRQ)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 973) ata_to_sense_error(qc->ap->print_id, tf->command, tf->feature,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 974) &sense_key, &asc, &ascq, verbose);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 975) ata_scsi_set_sense(dev, cmd, sense_key, asc, ascq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 976) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 977) /* Could not decode error */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 978) ata_dev_warn(dev, "could not decode error status 0x%x err_mask 0x%x\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 979) tf->command, qc->err_mask);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 980) ata_scsi_set_sense(dev, cmd, ABORTED_COMMAND, 0, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 981) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 982) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 983)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 984) block = ata_tf_read_block(&qc->result_tf, dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 985) if (block == U64_MAX)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 986) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 987)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 988) scsi_set_sense_information(sb, SCSI_SENSE_BUFFERSIZE, block);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 989) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 990)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 991) void ata_scsi_sdev_config(struct scsi_device *sdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 992) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 993) sdev->use_10_for_rw = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 994) sdev->use_10_for_ms = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 995) sdev->no_write_same = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 996)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 997) /* Schedule policy is determined by ->qc_defer() callback and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 998) * it needs to see every deferred qc. Set dev_blocked to 1 to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 999) * prevent SCSI midlayer from automatically deferring
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1000) * requests.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1001) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1002) sdev->max_device_blocked = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1003) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1004)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1005) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1006) * ata_scsi_dma_need_drain - Check whether data transfer may overflow
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1007) * @rq: request to be checked
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1008) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1009) * ATAPI commands which transfer variable length data to host
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1010) * might overflow due to application error or hardware bug. This
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1011) * function checks whether overflow should be drained and ignored
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1012) * for @request.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1013) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1014) * LOCKING:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1015) * None.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1016) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1017) * RETURNS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1018) * 1 if ; otherwise, 0.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1019) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1020) bool ata_scsi_dma_need_drain(struct request *rq)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1021) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1022) return atapi_cmd_type(scsi_req(rq)->cmd[0]) == ATAPI_MISC;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1023) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1024) EXPORT_SYMBOL_GPL(ata_scsi_dma_need_drain);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1025)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1026) int ata_scsi_dev_config(struct scsi_device *sdev, struct ata_device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1027) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1028) struct request_queue *q = sdev->request_queue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1029)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1030) if (!ata_id_has_unload(dev->id))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1031) dev->flags |= ATA_DFLAG_NO_UNLOAD;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1032)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1033) /* configure max sectors */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1034) blk_queue_max_hw_sectors(q, dev->max_sectors);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1035)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1036) if (dev->class == ATA_DEV_ATAPI) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1037) sdev->sector_size = ATA_SECT_SIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1038)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1039) /* set DMA padding */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1040) blk_queue_update_dma_pad(q, ATA_DMA_PAD_SZ - 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1041)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1042) /* make room for appending the drain */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1043) blk_queue_max_segments(q, queue_max_segments(q) - 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1044)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1045) sdev->dma_drain_len = ATAPI_MAX_DRAIN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1046) sdev->dma_drain_buf = kmalloc(sdev->dma_drain_len,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1047) q->bounce_gfp | GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1048) if (!sdev->dma_drain_buf) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1049) ata_dev_err(dev, "drain buffer allocation failed\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1050) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1051) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1052) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1053) sdev->sector_size = ata_id_logical_sector_size(dev->id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1054) sdev->manage_start_stop = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1055) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1056)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1057) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1058) * ata_pio_sectors() expects buffer for each sector to not cross
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1059) * page boundary. Enforce it by requiring buffers to be sector
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1060) * aligned, which works iff sector_size is not larger than
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1061) * PAGE_SIZE. ATAPI devices also need the alignment as
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1062) * IDENTIFY_PACKET is executed as ATA_PROT_PIO.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1063) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1064) if (sdev->sector_size > PAGE_SIZE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1065) ata_dev_warn(dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1066) "sector_size=%u > PAGE_SIZE, PIO may malfunction\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1067) sdev->sector_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1068)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1069) blk_queue_update_dma_alignment(q, sdev->sector_size - 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1070)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1071) if (dev->flags & ATA_DFLAG_AN)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1072) set_bit(SDEV_EVT_MEDIA_CHANGE, sdev->supported_events);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1073)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1074) if (dev->flags & ATA_DFLAG_NCQ) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1075) int depth;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1076)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1077) depth = min(sdev->host->can_queue, ata_id_queue_depth(dev->id));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1078) depth = min(ATA_MAX_QUEUE, depth);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1079) scsi_change_queue_depth(sdev, depth);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1080) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1081)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1082) if (dev->flags & ATA_DFLAG_TRUSTED)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1083) sdev->security_supported = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1084)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1085) dev->sdev = sdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1086) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1087) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1088)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1089) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1090) * ata_scsi_slave_config - Set SCSI device attributes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1091) * @sdev: SCSI device to examine
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1092) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1093) * This is called before we actually start reading
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1094) * and writing to the device, to configure certain
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1095) * SCSI mid-layer behaviors.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1096) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1097) * LOCKING:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1098) * Defined by SCSI layer. We don't really care.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1099) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1100)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1101) int ata_scsi_slave_config(struct scsi_device *sdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1102) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1103) struct ata_port *ap = ata_shost_to_port(sdev->host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1104) struct ata_device *dev = __ata_scsi_find_dev(ap, sdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1105) int rc = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1106)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1107) ata_scsi_sdev_config(sdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1108)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1109) if (dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1110) rc = ata_scsi_dev_config(sdev, dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1111)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1112) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1113) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1114) EXPORT_SYMBOL_GPL(ata_scsi_slave_config);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1115)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1116) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1117) * ata_scsi_slave_destroy - SCSI device is about to be destroyed
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1118) * @sdev: SCSI device to be destroyed
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1119) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1120) * @sdev is about to be destroyed for hot/warm unplugging. If
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1121) * this unplugging was initiated by libata as indicated by NULL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1122) * dev->sdev, this function doesn't have to do anything.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1123) * Otherwise, SCSI layer initiated warm-unplug is in progress.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1124) * Clear dev->sdev, schedule the device for ATA detach and invoke
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1125) * EH.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1126) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1127) * LOCKING:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1128) * Defined by SCSI layer. We don't really care.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1129) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1130) void ata_scsi_slave_destroy(struct scsi_device *sdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1131) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1132) struct ata_port *ap = ata_shost_to_port(sdev->host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1133) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1134) struct ata_device *dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1135)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1136) if (!ap->ops->error_handler)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1137) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1138)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1139) spin_lock_irqsave(ap->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1140) dev = __ata_scsi_find_dev(ap, sdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1141) if (dev && dev->sdev) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1142) /* SCSI device already in CANCEL state, no need to offline it */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1143) dev->sdev = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1144) dev->flags |= ATA_DFLAG_DETACH;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1145) ata_port_schedule_eh(ap);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1146) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1147) spin_unlock_irqrestore(ap->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1148)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1149) kfree(sdev->dma_drain_buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1150) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1151) EXPORT_SYMBOL_GPL(ata_scsi_slave_destroy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1152)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1153) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1154) * ata_scsi_start_stop_xlat - Translate SCSI START STOP UNIT command
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1155) * @qc: Storage for translated ATA taskfile
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1156) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1157) * Sets up an ATA taskfile to issue STANDBY (to stop) or READ VERIFY
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1158) * (to start). Perhaps these commands should be preceded by
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1159) * CHECK POWER MODE to see what power mode the device is already in.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1160) * [See SAT revision 5 at www.t10.org]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1161) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1162) * LOCKING:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1163) * spin_lock_irqsave(host lock)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1164) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1165) * RETURNS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1166) * Zero on success, non-zero on error.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1167) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1168) static unsigned int ata_scsi_start_stop_xlat(struct ata_queued_cmd *qc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1169) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1170) struct scsi_cmnd *scmd = qc->scsicmd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1171) struct ata_taskfile *tf = &qc->tf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1172) const u8 *cdb = scmd->cmnd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1173) u16 fp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1174) u8 bp = 0xff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1175)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1176) if (scmd->cmd_len < 5) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1177) fp = 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1178) goto invalid_fld;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1179) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1180)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1181) tf->flags |= ATA_TFLAG_DEVICE | ATA_TFLAG_ISADDR;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1182) tf->protocol = ATA_PROT_NODATA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1183) if (cdb[1] & 0x1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1184) ; /* ignore IMMED bit, violates sat-r05 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1185) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1186) if (cdb[4] & 0x2) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1187) fp = 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1188) bp = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1189) goto invalid_fld; /* LOEJ bit set not supported */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1190) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1191) if (((cdb[4] >> 4) & 0xf) != 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1192) fp = 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1193) bp = 3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1194) goto invalid_fld; /* power conditions not supported */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1195) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1196)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1197) if (cdb[4] & 0x1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1198) tf->nsect = 1; /* 1 sector, lba=0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1199)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1200) if (qc->dev->flags & ATA_DFLAG_LBA) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1201) tf->flags |= ATA_TFLAG_LBA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1202)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1203) tf->lbah = 0x0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1204) tf->lbam = 0x0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1205) tf->lbal = 0x0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1206) tf->device |= ATA_LBA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1207) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1208) /* CHS */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1209) tf->lbal = 0x1; /* sect */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1210) tf->lbam = 0x0; /* cyl low */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1211) tf->lbah = 0x0; /* cyl high */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1212) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1213)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1214) tf->command = ATA_CMD_VERIFY; /* READ VERIFY */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1215) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1216) /* Some odd clown BIOSen issue spindown on power off (ACPI S4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1217) * or S5) causing some drives to spin up and down again.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1218) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1219) if ((qc->ap->flags & ATA_FLAG_NO_POWEROFF_SPINDOWN) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1220) system_state == SYSTEM_POWER_OFF)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1221) goto skip;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1222)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1223) if ((qc->ap->flags & ATA_FLAG_NO_HIBERNATE_SPINDOWN) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1224) system_entering_hibernation())
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1225) goto skip;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1226)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1227) /* Issue ATA STANDBY IMMEDIATE command */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1228) tf->command = ATA_CMD_STANDBYNOW1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1229) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1230)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1231) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1232) * Standby and Idle condition timers could be implemented but that
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1233) * would require libata to implement the Power condition mode page
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1234) * and allow the user to change it. Changing mode pages requires
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1235) * MODE SELECT to be implemented.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1236) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1237)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1238) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1239)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1240) invalid_fld:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1241) ata_scsi_set_invalid_field(qc->dev, scmd, fp, bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1242) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1243) skip:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1244) scmd->result = SAM_STAT_GOOD;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1245) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1246) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1247)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1248)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1249) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1250) * ata_scsi_flush_xlat - Translate SCSI SYNCHRONIZE CACHE command
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1251) * @qc: Storage for translated ATA taskfile
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1252) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1253) * Sets up an ATA taskfile to issue FLUSH CACHE or
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1254) * FLUSH CACHE EXT.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1255) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1256) * LOCKING:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1257) * spin_lock_irqsave(host lock)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1258) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1259) * RETURNS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1260) * Zero on success, non-zero on error.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1261) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1262) static unsigned int ata_scsi_flush_xlat(struct ata_queued_cmd *qc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1263) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1264) struct ata_taskfile *tf = &qc->tf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1265)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1266) tf->flags |= ATA_TFLAG_DEVICE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1267) tf->protocol = ATA_PROT_NODATA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1268)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1269) if (qc->dev->flags & ATA_DFLAG_FLUSH_EXT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1270) tf->command = ATA_CMD_FLUSH_EXT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1271) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1272) tf->command = ATA_CMD_FLUSH;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1273)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1274) /* flush is critical for IO integrity, consider it an IO command */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1275) qc->flags |= ATA_QCFLAG_IO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1276)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1277) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1278) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1279)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1280) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1281) * scsi_6_lba_len - Get LBA and transfer length
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1282) * @cdb: SCSI command to translate
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1283) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1284) * Calculate LBA and transfer length for 6-byte commands.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1285) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1286) * RETURNS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1287) * @plba: the LBA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1288) * @plen: the transfer length
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1289) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1290) static void scsi_6_lba_len(const u8 *cdb, u64 *plba, u32 *plen)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1291) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1292) u64 lba = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1293) u32 len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1294)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1295) VPRINTK("six-byte command\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1296)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1297) lba |= ((u64)(cdb[1] & 0x1f)) << 16;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1298) lba |= ((u64)cdb[2]) << 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1299) lba |= ((u64)cdb[3]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1300)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1301) len = cdb[4];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1302)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1303) *plba = lba;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1304) *plen = len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1305) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1306)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1307) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1308) * scsi_10_lba_len - Get LBA and transfer length
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1309) * @cdb: SCSI command to translate
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1310) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1311) * Calculate LBA and transfer length for 10-byte commands.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1312) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1313) * RETURNS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1314) * @plba: the LBA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1315) * @plen: the transfer length
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1316) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1317) static void scsi_10_lba_len(const u8 *cdb, u64 *plba, u32 *plen)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1318) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1319) u64 lba = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1320) u32 len = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1321)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1322) VPRINTK("ten-byte command\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1323)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1324) lba |= ((u64)cdb[2]) << 24;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1325) lba |= ((u64)cdb[3]) << 16;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1326) lba |= ((u64)cdb[4]) << 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1327) lba |= ((u64)cdb[5]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1328)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1329) len |= ((u32)cdb[7]) << 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1330) len |= ((u32)cdb[8]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1331)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1332) *plba = lba;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1333) *plen = len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1334) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1335)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1336) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1337) * scsi_16_lba_len - Get LBA and transfer length
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1338) * @cdb: SCSI command to translate
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1339) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1340) * Calculate LBA and transfer length for 16-byte commands.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1341) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1342) * RETURNS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1343) * @plba: the LBA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1344) * @plen: the transfer length
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1345) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1346) static void scsi_16_lba_len(const u8 *cdb, u64 *plba, u32 *plen)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1347) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1348) u64 lba = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1349) u32 len = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1350)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1351) VPRINTK("sixteen-byte command\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1352)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1353) lba |= ((u64)cdb[2]) << 56;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1354) lba |= ((u64)cdb[3]) << 48;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1355) lba |= ((u64)cdb[4]) << 40;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1356) lba |= ((u64)cdb[5]) << 32;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1357) lba |= ((u64)cdb[6]) << 24;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1358) lba |= ((u64)cdb[7]) << 16;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1359) lba |= ((u64)cdb[8]) << 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1360) lba |= ((u64)cdb[9]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1361)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1362) len |= ((u32)cdb[10]) << 24;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1363) len |= ((u32)cdb[11]) << 16;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1364) len |= ((u32)cdb[12]) << 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1365) len |= ((u32)cdb[13]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1366)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1367) *plba = lba;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1368) *plen = len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1369) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1370)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1371) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1372) * ata_scsi_verify_xlat - Translate SCSI VERIFY command into an ATA one
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1373) * @qc: Storage for translated ATA taskfile
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1374) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1375) * Converts SCSI VERIFY command to an ATA READ VERIFY command.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1376) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1377) * LOCKING:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1378) * spin_lock_irqsave(host lock)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1379) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1380) * RETURNS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1381) * Zero on success, non-zero on error.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1382) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1383) static unsigned int ata_scsi_verify_xlat(struct ata_queued_cmd *qc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1384) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1385) struct scsi_cmnd *scmd = qc->scsicmd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1386) struct ata_taskfile *tf = &qc->tf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1387) struct ata_device *dev = qc->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1388) u64 dev_sectors = qc->dev->n_sectors;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1389) const u8 *cdb = scmd->cmnd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1390) u64 block;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1391) u32 n_block;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1392) u16 fp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1393)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1394) tf->flags |= ATA_TFLAG_ISADDR | ATA_TFLAG_DEVICE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1395) tf->protocol = ATA_PROT_NODATA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1396)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1397) if (cdb[0] == VERIFY) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1398) if (scmd->cmd_len < 10) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1399) fp = 9;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1400) goto invalid_fld;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1401) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1402) scsi_10_lba_len(cdb, &block, &n_block);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1403) } else if (cdb[0] == VERIFY_16) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1404) if (scmd->cmd_len < 16) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1405) fp = 15;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1406) goto invalid_fld;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1407) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1408) scsi_16_lba_len(cdb, &block, &n_block);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1409) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1410) fp = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1411) goto invalid_fld;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1412) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1413)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1414) if (!n_block)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1415) goto nothing_to_do;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1416) if (block >= dev_sectors)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1417) goto out_of_range;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1418) if ((block + n_block) > dev_sectors)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1419) goto out_of_range;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1420)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1421) if (dev->flags & ATA_DFLAG_LBA) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1422) tf->flags |= ATA_TFLAG_LBA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1423)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1424) if (lba_28_ok(block, n_block)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1425) /* use LBA28 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1426) tf->command = ATA_CMD_VERIFY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1427) tf->device |= (block >> 24) & 0xf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1428) } else if (lba_48_ok(block, n_block)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1429) if (!(dev->flags & ATA_DFLAG_LBA48))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1430) goto out_of_range;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1431)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1432) /* use LBA48 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1433) tf->flags |= ATA_TFLAG_LBA48;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1434) tf->command = ATA_CMD_VERIFY_EXT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1435)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1436) tf->hob_nsect = (n_block >> 8) & 0xff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1437)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1438) tf->hob_lbah = (block >> 40) & 0xff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1439) tf->hob_lbam = (block >> 32) & 0xff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1440) tf->hob_lbal = (block >> 24) & 0xff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1441) } else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1442) /* request too large even for LBA48 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1443) goto out_of_range;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1444)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1445) tf->nsect = n_block & 0xff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1446)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1447) tf->lbah = (block >> 16) & 0xff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1448) tf->lbam = (block >> 8) & 0xff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1449) tf->lbal = block & 0xff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1450)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1451) tf->device |= ATA_LBA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1452) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1453) /* CHS */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1454) u32 sect, head, cyl, track;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1455)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1456) if (!lba_28_ok(block, n_block))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1457) goto out_of_range;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1458)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1459) /* Convert LBA to CHS */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1460) track = (u32)block / dev->sectors;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1461) cyl = track / dev->heads;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1462) head = track % dev->heads;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1463) sect = (u32)block % dev->sectors + 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1464)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1465) DPRINTK("block %u track %u cyl %u head %u sect %u\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1466) (u32)block, track, cyl, head, sect);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1467)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1468) /* Check whether the converted CHS can fit.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1469) Cylinder: 0-65535
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1470) Head: 0-15
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1471) Sector: 1-255*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1472) if ((cyl >> 16) || (head >> 4) || (sect >> 8) || (!sect))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1473) goto out_of_range;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1474)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1475) tf->command = ATA_CMD_VERIFY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1476) tf->nsect = n_block & 0xff; /* Sector count 0 means 256 sectors */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1477) tf->lbal = sect;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1478) tf->lbam = cyl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1479) tf->lbah = cyl >> 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1480) tf->device |= head;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1481) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1482)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1483) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1484)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1485) invalid_fld:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1486) ata_scsi_set_invalid_field(qc->dev, scmd, fp, 0xff);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1487) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1488)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1489) out_of_range:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1490) ata_scsi_set_sense(qc->dev, scmd, ILLEGAL_REQUEST, 0x21, 0x0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1491) /* "Logical Block Address out of range" */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1492) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1493)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1494) nothing_to_do:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1495) scmd->result = SAM_STAT_GOOD;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1496) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1497) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1498)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1499) static bool ata_check_nblocks(struct scsi_cmnd *scmd, u32 n_blocks)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1500) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1501) struct request *rq = scmd->request;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1502) u32 req_blocks;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1503)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1504) if (!blk_rq_is_passthrough(rq))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1505) return true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1506)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1507) req_blocks = blk_rq_bytes(rq) / scmd->device->sector_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1508) if (n_blocks > req_blocks)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1509) return false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1510)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1511) return true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1512) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1513)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1514) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1515) * ata_scsi_rw_xlat - Translate SCSI r/w command into an ATA one
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1516) * @qc: Storage for translated ATA taskfile
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1517) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1518) * Converts any of six SCSI read/write commands into the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1519) * ATA counterpart, including starting sector (LBA),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1520) * sector count, and taking into account the device's LBA48
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1521) * support.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1522) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1523) * Commands %READ_6, %READ_10, %READ_16, %WRITE_6, %WRITE_10, and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1524) * %WRITE_16 are currently supported.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1525) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1526) * LOCKING:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1527) * spin_lock_irqsave(host lock)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1528) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1529) * RETURNS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1530) * Zero on success, non-zero on error.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1531) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1532) static unsigned int ata_scsi_rw_xlat(struct ata_queued_cmd *qc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1533) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1534) struct scsi_cmnd *scmd = qc->scsicmd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1535) const u8 *cdb = scmd->cmnd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1536) struct request *rq = scmd->request;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1537) int class = IOPRIO_PRIO_CLASS(req_get_ioprio(rq));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1538) unsigned int tf_flags = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1539) u64 block;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1540) u32 n_block;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1541) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1542) u16 fp = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1543)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1544) if (cdb[0] == WRITE_10 || cdb[0] == WRITE_6 || cdb[0] == WRITE_16)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1545) tf_flags |= ATA_TFLAG_WRITE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1546)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1547) /* Calculate the SCSI LBA, transfer length and FUA. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1548) switch (cdb[0]) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1549) case READ_10:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1550) case WRITE_10:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1551) if (unlikely(scmd->cmd_len < 10)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1552) fp = 9;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1553) goto invalid_fld;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1554) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1555) scsi_10_lba_len(cdb, &block, &n_block);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1556) if (cdb[1] & (1 << 3))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1557) tf_flags |= ATA_TFLAG_FUA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1558) if (!ata_check_nblocks(scmd, n_block))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1559) goto invalid_fld;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1560) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1561) case READ_6:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1562) case WRITE_6:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1563) if (unlikely(scmd->cmd_len < 6)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1564) fp = 5;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1565) goto invalid_fld;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1566) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1567) scsi_6_lba_len(cdb, &block, &n_block);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1568)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1569) /* for 6-byte r/w commands, transfer length 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1570) * means 256 blocks of data, not 0 block.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1571) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1572) if (!n_block)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1573) n_block = 256;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1574) if (!ata_check_nblocks(scmd, n_block))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1575) goto invalid_fld;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1576) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1577) case READ_16:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1578) case WRITE_16:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1579) if (unlikely(scmd->cmd_len < 16)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1580) fp = 15;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1581) goto invalid_fld;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1582) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1583) scsi_16_lba_len(cdb, &block, &n_block);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1584) if (cdb[1] & (1 << 3))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1585) tf_flags |= ATA_TFLAG_FUA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1586) if (!ata_check_nblocks(scmd, n_block))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1587) goto invalid_fld;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1588) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1589) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1590) DPRINTK("no-byte command\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1591) fp = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1592) goto invalid_fld;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1593) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1594)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1595) /* Check and compose ATA command */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1596) if (!n_block)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1597) /* For 10-byte and 16-byte SCSI R/W commands, transfer
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1598) * length 0 means transfer 0 block of data.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1599) * However, for ATA R/W commands, sector count 0 means
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1600) * 256 or 65536 sectors, not 0 sectors as in SCSI.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1601) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1602) * WARNING: one or two older ATA drives treat 0 as 0...
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1603) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1604) goto nothing_to_do;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1605)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1606) qc->flags |= ATA_QCFLAG_IO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1607) qc->nbytes = n_block * scmd->device->sector_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1608)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1609) rc = ata_build_rw_tf(&qc->tf, qc->dev, block, n_block, tf_flags,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1610) qc->hw_tag, class);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1611)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1612) if (likely(rc == 0))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1613) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1614)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1615) if (rc == -ERANGE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1616) goto out_of_range;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1617) /* treat all other errors as -EINVAL, fall through */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1618) invalid_fld:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1619) ata_scsi_set_invalid_field(qc->dev, scmd, fp, 0xff);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1620) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1621)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1622) out_of_range:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1623) ata_scsi_set_sense(qc->dev, scmd, ILLEGAL_REQUEST, 0x21, 0x0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1624) /* "Logical Block Address out of range" */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1625) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1626)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1627) nothing_to_do:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1628) scmd->result = SAM_STAT_GOOD;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1629) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1630) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1631)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1632) static void ata_qc_done(struct ata_queued_cmd *qc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1633) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1634) struct scsi_cmnd *cmd = qc->scsicmd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1635) void (*done)(struct scsi_cmnd *) = qc->scsidone;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1636)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1637) ata_qc_free(qc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1638) done(cmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1639) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1640)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1641) static void ata_scsi_qc_complete(struct ata_queued_cmd *qc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1642) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1643) struct ata_port *ap = qc->ap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1644) struct scsi_cmnd *cmd = qc->scsicmd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1645) u8 *cdb = cmd->cmnd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1646) int need_sense = (qc->err_mask != 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1647)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1648) /* For ATA pass thru (SAT) commands, generate a sense block if
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1649) * user mandated it or if there's an error. Note that if we
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1650) * generate because the user forced us to [CK_COND =1], a check
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1651) * condition is generated and the ATA register values are returned
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1652) * whether the command completed successfully or not. If there
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1653) * was no error, we use the following sense data:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1654) * sk = RECOVERED ERROR
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1655) * asc,ascq = ATA PASS-THROUGH INFORMATION AVAILABLE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1656) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1657) if (((cdb[0] == ATA_16) || (cdb[0] == ATA_12)) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1658) ((cdb[2] & 0x20) || need_sense))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1659) ata_gen_passthru_sense(qc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1660) else if (qc->flags & ATA_QCFLAG_SENSE_VALID)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1661) cmd->result = SAM_STAT_CHECK_CONDITION;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1662) else if (need_sense)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1663) ata_gen_ata_sense(qc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1664) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1665) cmd->result = SAM_STAT_GOOD;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1666)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1667) if (need_sense && !ap->ops->error_handler)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1668) ata_dump_status(ap->print_id, &qc->result_tf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1669)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1670) ata_qc_done(qc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1671) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1672)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1673) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1674) * ata_scsi_translate - Translate then issue SCSI command to ATA device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1675) * @dev: ATA device to which the command is addressed
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1676) * @cmd: SCSI command to execute
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1677) * @xlat_func: Actor which translates @cmd to an ATA taskfile
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1678) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1679) * Our ->queuecommand() function has decided that the SCSI
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1680) * command issued can be directly translated into an ATA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1681) * command, rather than handled internally.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1682) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1683) * This function sets up an ata_queued_cmd structure for the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1684) * SCSI command, and sends that ata_queued_cmd to the hardware.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1685) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1686) * The xlat_func argument (actor) returns 0 if ready to execute
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1687) * ATA command, else 1 to finish translation. If 1 is returned
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1688) * then cmd->result (and possibly cmd->sense_buffer) are assumed
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1689) * to be set reflecting an error condition or clean (early)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1690) * termination.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1691) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1692) * LOCKING:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1693) * spin_lock_irqsave(host lock)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1694) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1695) * RETURNS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1696) * 0 on success, SCSI_ML_QUEUE_DEVICE_BUSY if the command
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1697) * needs to be deferred.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1698) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1699) static int ata_scsi_translate(struct ata_device *dev, struct scsi_cmnd *cmd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1700) ata_xlat_func_t xlat_func)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1701) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1702) struct ata_port *ap = dev->link->ap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1703) struct ata_queued_cmd *qc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1704) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1705)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1706) VPRINTK("ENTER\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1707)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1708) qc = ata_scsi_qc_new(dev, cmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1709) if (!qc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1710) goto err_mem;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1711)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1712) /* data is present; dma-map it */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1713) if (cmd->sc_data_direction == DMA_FROM_DEVICE ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1714) cmd->sc_data_direction == DMA_TO_DEVICE) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1715) if (unlikely(scsi_bufflen(cmd) < 1)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1716) ata_dev_warn(dev, "WARNING: zero len r/w req\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1717) goto err_did;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1718) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1719)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1720) ata_sg_init(qc, scsi_sglist(cmd), scsi_sg_count(cmd));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1721)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1722) qc->dma_dir = cmd->sc_data_direction;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1723) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1724)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1725) qc->complete_fn = ata_scsi_qc_complete;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1726)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1727) if (xlat_func(qc))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1728) goto early_finish;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1729)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1730) if (ap->ops->qc_defer) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1731) if ((rc = ap->ops->qc_defer(qc)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1732) goto defer;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1733) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1734)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1735) /* select device, send command to hardware */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1736) ata_qc_issue(qc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1737)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1738) VPRINTK("EXIT\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1739) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1740)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1741) early_finish:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1742) ata_qc_free(qc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1743) cmd->scsi_done(cmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1744) DPRINTK("EXIT - early finish (good or error)\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1745) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1746)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1747) err_did:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1748) ata_qc_free(qc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1749) cmd->result = (DID_ERROR << 16);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1750) cmd->scsi_done(cmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1751) err_mem:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1752) DPRINTK("EXIT - internal\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1753) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1754)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1755) defer:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1756) ata_qc_free(qc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1757) DPRINTK("EXIT - defer\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1758) if (rc == ATA_DEFER_LINK)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1759) return SCSI_MLQUEUE_DEVICE_BUSY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1760) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1761) return SCSI_MLQUEUE_HOST_BUSY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1762) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1763)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1764) struct ata_scsi_args {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1765) struct ata_device *dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1766) u16 *id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1767) struct scsi_cmnd *cmd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1768) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1769)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1770) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1771) * ata_scsi_rbuf_get - Map response buffer.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1772) * @cmd: SCSI command containing buffer to be mapped.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1773) * @flags: unsigned long variable to store irq enable status
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1774) * @copy_in: copy in from user buffer
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1775) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1776) * Prepare buffer for simulated SCSI commands.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1777) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1778) * LOCKING:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1779) * spin_lock_irqsave(ata_scsi_rbuf_lock) on success
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1780) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1781) * RETURNS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1782) * Pointer to response buffer.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1783) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1784) static void *ata_scsi_rbuf_get(struct scsi_cmnd *cmd, bool copy_in,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1785) unsigned long *flags)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1786) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1787) spin_lock_irqsave(&ata_scsi_rbuf_lock, *flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1788)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1789) memset(ata_scsi_rbuf, 0, ATA_SCSI_RBUF_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1790) if (copy_in)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1791) sg_copy_to_buffer(scsi_sglist(cmd), scsi_sg_count(cmd),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1792) ata_scsi_rbuf, ATA_SCSI_RBUF_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1793) return ata_scsi_rbuf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1794) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1795)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1796) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1797) * ata_scsi_rbuf_put - Unmap response buffer.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1798) * @cmd: SCSI command containing buffer to be unmapped.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1799) * @copy_out: copy out result
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1800) * @flags: @flags passed to ata_scsi_rbuf_get()
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1801) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1802) * Returns rbuf buffer. The result is copied to @cmd's buffer if
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1803) * @copy_back is true.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1804) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1805) * LOCKING:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1806) * Unlocks ata_scsi_rbuf_lock.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1807) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1808) static inline void ata_scsi_rbuf_put(struct scsi_cmnd *cmd, bool copy_out,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1809) unsigned long *flags)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1810) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1811) if (copy_out)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1812) sg_copy_from_buffer(scsi_sglist(cmd), scsi_sg_count(cmd),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1813) ata_scsi_rbuf, ATA_SCSI_RBUF_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1814) spin_unlock_irqrestore(&ata_scsi_rbuf_lock, *flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1815) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1816)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1817) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1818) * ata_scsi_rbuf_fill - wrapper for SCSI command simulators
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1819) * @args: device IDENTIFY data / SCSI command of interest.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1820) * @actor: Callback hook for desired SCSI command simulator
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1821) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1822) * Takes care of the hard work of simulating a SCSI command...
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1823) * Mapping the response buffer, calling the command's handler,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1824) * and handling the handler's return value. This return value
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1825) * indicates whether the handler wishes the SCSI command to be
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1826) * completed successfully (0), or not (in which case cmd->result
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1827) * and sense buffer are assumed to be set).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1828) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1829) * LOCKING:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1830) * spin_lock_irqsave(host lock)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1831) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1832) static void ata_scsi_rbuf_fill(struct ata_scsi_args *args,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1833) unsigned int (*actor)(struct ata_scsi_args *args, u8 *rbuf))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1834) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1835) u8 *rbuf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1836) unsigned int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1837) struct scsi_cmnd *cmd = args->cmd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1838) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1839)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1840) rbuf = ata_scsi_rbuf_get(cmd, false, &flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1841) rc = actor(args, rbuf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1842) ata_scsi_rbuf_put(cmd, rc == 0, &flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1843)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1844) if (rc == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1845) cmd->result = SAM_STAT_GOOD;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1846) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1847)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1848) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1849) * ata_scsiop_inq_std - Simulate INQUIRY command
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1850) * @args: device IDENTIFY data / SCSI command of interest.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1851) * @rbuf: Response buffer, to which simulated SCSI cmd output is sent.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1852) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1853) * Returns standard device identification data associated
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1854) * with non-VPD INQUIRY command output.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1855) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1856) * LOCKING:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1857) * spin_lock_irqsave(host lock)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1858) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1859) static unsigned int ata_scsiop_inq_std(struct ata_scsi_args *args, u8 *rbuf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1860) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1861) static const u8 versions[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1862) 0x00,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1863) 0x60, /* SAM-3 (no version claimed) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1864)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1865) 0x03,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1866) 0x20, /* SBC-2 (no version claimed) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1867)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1868) 0x03,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1869) 0x00 /* SPC-3 (no version claimed) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1870) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1871) static const u8 versions_zbc[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1872) 0x00,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1873) 0xA0, /* SAM-5 (no version claimed) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1874)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1875) 0x06,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1876) 0x00, /* SBC-4 (no version claimed) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1877)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1878) 0x05,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1879) 0xC0, /* SPC-5 (no version claimed) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1880)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1881) 0x60,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1882) 0x24, /* ZBC r05 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1883) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1884)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1885) u8 hdr[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1886) TYPE_DISK,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1887) 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1888) 0x5, /* claim SPC-3 version compatibility */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1889) 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1890) 95 - 4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1891) 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1892) 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1893) 2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1894) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1895)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1896) VPRINTK("ENTER\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1897)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1898) /* set scsi removable (RMB) bit per ata bit, or if the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1899) * AHCI port says it's external (Hotplug-capable, eSATA).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1900) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1901) if (ata_id_removable(args->id) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1902) (args->dev->link->ap->pflags & ATA_PFLAG_EXTERNAL))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1903) hdr[1] |= (1 << 7);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1904)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1905) if (args->dev->class == ATA_DEV_ZAC) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1906) hdr[0] = TYPE_ZBC;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1907) hdr[2] = 0x7; /* claim SPC-5 version compatibility */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1908) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1909)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1910) memcpy(rbuf, hdr, sizeof(hdr));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1911) memcpy(&rbuf[8], "ATA ", 8);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1912) ata_id_string(args->id, &rbuf[16], ATA_ID_PROD, 16);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1913)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1914) /* From SAT, use last 2 words from fw rev unless they are spaces */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1915) ata_id_string(args->id, &rbuf[32], ATA_ID_FW_REV + 2, 4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1916) if (strncmp(&rbuf[32], " ", 4) == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1917) ata_id_string(args->id, &rbuf[32], ATA_ID_FW_REV, 4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1918)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1919) if (rbuf[32] == 0 || rbuf[32] == ' ')
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1920) memcpy(&rbuf[32], "n/a ", 4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1921)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1922) if (ata_id_zoned_cap(args->id) || args->dev->class == ATA_DEV_ZAC)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1923) memcpy(rbuf + 58, versions_zbc, sizeof(versions_zbc));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1924) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1925) memcpy(rbuf + 58, versions, sizeof(versions));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1926)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1927) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1928) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1929)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1930) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1931) * ata_scsiop_inq_00 - Simulate INQUIRY VPD page 0, list of pages
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1932) * @args: device IDENTIFY data / SCSI command of interest.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1933) * @rbuf: Response buffer, to which simulated SCSI cmd output is sent.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1934) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1935) * Returns list of inquiry VPD pages available.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1936) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1937) * LOCKING:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1938) * spin_lock_irqsave(host lock)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1939) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1940) static unsigned int ata_scsiop_inq_00(struct ata_scsi_args *args, u8 *rbuf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1941) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1942) int num_pages;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1943) static const u8 pages[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1944) 0x00, /* page 0x00, this page */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1945) 0x80, /* page 0x80, unit serial no page */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1946) 0x83, /* page 0x83, device ident page */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1947) 0x89, /* page 0x89, ata info page */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1948) 0xb0, /* page 0xb0, block limits page */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1949) 0xb1, /* page 0xb1, block device characteristics page */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1950) 0xb2, /* page 0xb2, thin provisioning page */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1951) 0xb6, /* page 0xb6, zoned block device characteristics */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1952) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1953)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1954) num_pages = sizeof(pages);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1955) if (!(args->dev->flags & ATA_DFLAG_ZAC))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1956) num_pages--;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1957) rbuf[3] = num_pages; /* number of supported VPD pages */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1958) memcpy(rbuf + 4, pages, num_pages);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1959) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1960) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1961)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1962) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1963) * ata_scsiop_inq_80 - Simulate INQUIRY VPD page 80, device serial number
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1964) * @args: device IDENTIFY data / SCSI command of interest.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1965) * @rbuf: Response buffer, to which simulated SCSI cmd output is sent.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1966) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1967) * Returns ATA device serial number.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1968) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1969) * LOCKING:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1970) * spin_lock_irqsave(host lock)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1971) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1972) static unsigned int ata_scsiop_inq_80(struct ata_scsi_args *args, u8 *rbuf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1973) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1974) static const u8 hdr[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1975) 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1976) 0x80, /* this page code */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1977) 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1978) ATA_ID_SERNO_LEN, /* page len */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1979) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1980)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1981) memcpy(rbuf, hdr, sizeof(hdr));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1982) ata_id_string(args->id, (unsigned char *) &rbuf[4],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1983) ATA_ID_SERNO, ATA_ID_SERNO_LEN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1984) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1985) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1986)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1987) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1988) * ata_scsiop_inq_83 - Simulate INQUIRY VPD page 83, device identity
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1989) * @args: device IDENTIFY data / SCSI command of interest.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1990) * @rbuf: Response buffer, to which simulated SCSI cmd output is sent.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1991) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1992) * Yields two logical unit device identification designators:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1993) * - vendor specific ASCII containing the ATA serial number
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1994) * - SAT defined "t10 vendor id based" containing ASCII vendor
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1995) * name ("ATA "), model and serial numbers.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1996) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1997) * LOCKING:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1998) * spin_lock_irqsave(host lock)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1999) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2000) static unsigned int ata_scsiop_inq_83(struct ata_scsi_args *args, u8 *rbuf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2001) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2002) const int sat_model_serial_desc_len = 68;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2003) int num;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2004)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2005) rbuf[1] = 0x83; /* this page code */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2006) num = 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2007)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2008) /* piv=0, assoc=lu, code_set=ACSII, designator=vendor */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2009) rbuf[num + 0] = 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2010) rbuf[num + 3] = ATA_ID_SERNO_LEN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2011) num += 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2012) ata_id_string(args->id, (unsigned char *) rbuf + num,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2013) ATA_ID_SERNO, ATA_ID_SERNO_LEN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2014) num += ATA_ID_SERNO_LEN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2015)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2016) /* SAT defined lu model and serial numbers descriptor */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2017) /* piv=0, assoc=lu, code_set=ACSII, designator=t10 vendor id */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2018) rbuf[num + 0] = 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2019) rbuf[num + 1] = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2020) rbuf[num + 3] = sat_model_serial_desc_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2021) num += 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2022) memcpy(rbuf + num, "ATA ", 8);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2023) num += 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2024) ata_id_string(args->id, (unsigned char *) rbuf + num, ATA_ID_PROD,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2025) ATA_ID_PROD_LEN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2026) num += ATA_ID_PROD_LEN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2027) ata_id_string(args->id, (unsigned char *) rbuf + num, ATA_ID_SERNO,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2028) ATA_ID_SERNO_LEN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2029) num += ATA_ID_SERNO_LEN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2030)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2031) if (ata_id_has_wwn(args->id)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2032) /* SAT defined lu world wide name */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2033) /* piv=0, assoc=lu, code_set=binary, designator=NAA */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2034) rbuf[num + 0] = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2035) rbuf[num + 1] = 3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2036) rbuf[num + 3] = ATA_ID_WWN_LEN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2037) num += 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2038) ata_id_string(args->id, (unsigned char *) rbuf + num,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2039) ATA_ID_WWN, ATA_ID_WWN_LEN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2040) num += ATA_ID_WWN_LEN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2041) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2042) rbuf[3] = num - 4; /* page len (assume less than 256 bytes) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2043) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2044) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2045)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2046) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2047) * ata_scsiop_inq_89 - Simulate INQUIRY VPD page 89, ATA info
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2048) * @args: device IDENTIFY data / SCSI command of interest.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2049) * @rbuf: Response buffer, to which simulated SCSI cmd output is sent.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2050) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2051) * Yields SAT-specified ATA VPD page.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2052) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2053) * LOCKING:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2054) * spin_lock_irqsave(host lock)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2055) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2056) static unsigned int ata_scsiop_inq_89(struct ata_scsi_args *args, u8 *rbuf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2057) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2058) rbuf[1] = 0x89; /* our page code */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2059) rbuf[2] = (0x238 >> 8); /* page size fixed at 238h */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2060) rbuf[3] = (0x238 & 0xff);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2061)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2062) memcpy(&rbuf[8], "linux ", 8);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2063) memcpy(&rbuf[16], "libata ", 16);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2064) memcpy(&rbuf[32], DRV_VERSION, 4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2065)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2066) rbuf[36] = 0x34; /* force D2H Reg FIS (34h) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2067) rbuf[37] = (1 << 7); /* bit 7 indicates Command FIS */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2068) /* TODO: PMP? */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2069)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2070) /* we don't store the ATA device signature, so we fake it */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2071) rbuf[38] = ATA_DRDY; /* really, this is Status reg */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2072) rbuf[40] = 0x1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2073) rbuf[48] = 0x1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2074)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2075) rbuf[56] = ATA_CMD_ID_ATA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2076)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2077) memcpy(&rbuf[60], &args->id[0], 512);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2078) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2079) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2080)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2081) static unsigned int ata_scsiop_inq_b0(struct ata_scsi_args *args, u8 *rbuf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2082) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2083) struct ata_device *dev = args->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2084) u16 min_io_sectors;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2085)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2086) rbuf[1] = 0xb0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2087) rbuf[3] = 0x3c; /* required VPD size with unmap support */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2088)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2089) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2090) * Optimal transfer length granularity.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2091) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2092) * This is always one physical block, but for disks with a smaller
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2093) * logical than physical sector size we need to figure out what the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2094) * latter is.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2095) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2096) min_io_sectors = 1 << ata_id_log2_per_physical_sector(args->id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2097) put_unaligned_be16(min_io_sectors, &rbuf[6]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2098)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2099) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2100) * Optimal unmap granularity.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2101) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2102) * The ATA spec doesn't even know about a granularity or alignment
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2103) * for the TRIM command. We can leave away most of the unmap related
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2104) * VPD page entries, but we have specifify a granularity to signal
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2105) * that we support some form of unmap - in thise case via WRITE SAME
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2106) * with the unmap bit set.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2107) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2108) if (ata_id_has_trim(args->id)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2109) u64 max_blocks = 65535 * ATA_MAX_TRIM_RNUM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2110)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2111) if (dev->horkage & ATA_HORKAGE_MAX_TRIM_128M)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2112) max_blocks = 128 << (20 - SECTOR_SHIFT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2113)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2114) put_unaligned_be64(max_blocks, &rbuf[36]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2115) put_unaligned_be32(1, &rbuf[28]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2116) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2117)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2118) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2119) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2120)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2121) static unsigned int ata_scsiop_inq_b1(struct ata_scsi_args *args, u8 *rbuf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2122) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2123) int form_factor = ata_id_form_factor(args->id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2124) int media_rotation_rate = ata_id_rotation_rate(args->id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2125) u8 zoned = ata_id_zoned_cap(args->id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2126)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2127) rbuf[1] = 0xb1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2128) rbuf[3] = 0x3c;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2129) rbuf[4] = media_rotation_rate >> 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2130) rbuf[5] = media_rotation_rate;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2131) rbuf[7] = form_factor;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2132) if (zoned)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2133) rbuf[8] = (zoned << 4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2134)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2135) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2136) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2137)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2138) static unsigned int ata_scsiop_inq_b2(struct ata_scsi_args *args, u8 *rbuf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2139) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2140) /* SCSI Thin Provisioning VPD page: SBC-3 rev 22 or later */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2141) rbuf[1] = 0xb2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2142) rbuf[3] = 0x4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2143) rbuf[5] = 1 << 6; /* TPWS */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2144)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2145) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2146) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2147)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2148) static unsigned int ata_scsiop_inq_b6(struct ata_scsi_args *args, u8 *rbuf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2149) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2150) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2151) * zbc-r05 SCSI Zoned Block device characteristics VPD page
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2152) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2153) rbuf[1] = 0xb6;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2154) rbuf[3] = 0x3C;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2155)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2156) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2157) * URSWRZ bit is only meaningful for host-managed ZAC drives
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2158) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2159) if (args->dev->zac_zoned_cap & 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2160) rbuf[4] |= 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2161) put_unaligned_be32(args->dev->zac_zones_optimal_open, &rbuf[8]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2162) put_unaligned_be32(args->dev->zac_zones_optimal_nonseq, &rbuf[12]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2163) put_unaligned_be32(args->dev->zac_zones_max_open, &rbuf[16]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2164)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2165) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2166) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2167)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2168) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2169) * modecpy - Prepare response for MODE SENSE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2170) * @dest: output buffer
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2171) * @src: data being copied
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2172) * @n: length of mode page
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2173) * @changeable: whether changeable parameters are requested
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2174) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2175) * Generate a generic MODE SENSE page for either current or changeable
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2176) * parameters.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2177) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2178) * LOCKING:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2179) * None.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2180) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2181) static void modecpy(u8 *dest, const u8 *src, int n, bool changeable)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2182) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2183) if (changeable) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2184) memcpy(dest, src, 2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2185) memset(dest + 2, 0, n - 2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2186) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2187) memcpy(dest, src, n);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2188) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2189) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2190)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2191) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2192) * ata_msense_caching - Simulate MODE SENSE caching info page
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2193) * @id: device IDENTIFY data
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2194) * @buf: output buffer
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2195) * @changeable: whether changeable parameters are requested
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2196) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2197) * Generate a caching info page, which conditionally indicates
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2198) * write caching to the SCSI layer, depending on device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2199) * capabilities.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2200) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2201) * LOCKING:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2202) * None.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2203) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2204) static unsigned int ata_msense_caching(u16 *id, u8 *buf, bool changeable)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2205) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2206) modecpy(buf, def_cache_mpage, sizeof(def_cache_mpage), changeable);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2207) if (changeable) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2208) buf[2] |= (1 << 2); /* ata_mselect_caching() */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2209) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2210) buf[2] |= (ata_id_wcache_enabled(id) << 2); /* write cache enable */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2211) buf[12] |= (!ata_id_rahead_enabled(id) << 5); /* disable read ahead */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2212) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2213) return sizeof(def_cache_mpage);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2214) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2215)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2216) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2217) * ata_msense_control - Simulate MODE SENSE control mode page
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2218) * @dev: ATA device of interest
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2219) * @buf: output buffer
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2220) * @changeable: whether changeable parameters are requested
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2221) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2222) * Generate a generic MODE SENSE control mode page.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2223) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2224) * LOCKING:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2225) * None.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2226) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2227) static unsigned int ata_msense_control(struct ata_device *dev, u8 *buf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2228) bool changeable)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2229) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2230) modecpy(buf, def_control_mpage, sizeof(def_control_mpage), changeable);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2231) if (changeable) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2232) buf[2] |= (1 << 2); /* ata_mselect_control() */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2233) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2234) bool d_sense = (dev->flags & ATA_DFLAG_D_SENSE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2235)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2236) buf[2] |= (d_sense << 2); /* descriptor format sense data */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2237) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2238) return sizeof(def_control_mpage);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2239) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2240)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2241) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2242) * ata_msense_rw_recovery - Simulate MODE SENSE r/w error recovery page
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2243) * @buf: output buffer
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2244) * @changeable: whether changeable parameters are requested
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2245) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2246) * Generate a generic MODE SENSE r/w error recovery page.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2247) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2248) * LOCKING:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2249) * None.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2250) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2251) static unsigned int ata_msense_rw_recovery(u8 *buf, bool changeable)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2252) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2253) modecpy(buf, def_rw_recovery_mpage, sizeof(def_rw_recovery_mpage),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2254) changeable);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2255) return sizeof(def_rw_recovery_mpage);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2256) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2257)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2258) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2259) * We can turn this into a real blacklist if it's needed, for now just
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2260) * blacklist any Maxtor BANC1G10 revision firmware
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2261) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2262) static int ata_dev_supports_fua(u16 *id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2263) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2264) unsigned char model[ATA_ID_PROD_LEN + 1], fw[ATA_ID_FW_REV_LEN + 1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2265)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2266) if (!libata_fua)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2267) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2268) if (!ata_id_has_fua(id))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2269) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2270)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2271) ata_id_c_string(id, model, ATA_ID_PROD, sizeof(model));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2272) ata_id_c_string(id, fw, ATA_ID_FW_REV, sizeof(fw));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2273)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2274) if (strcmp(model, "Maxtor"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2275) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2276) if (strcmp(fw, "BANC1G10"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2277) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2278)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2279) return 0; /* blacklisted */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2280) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2281)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2282) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2283) * ata_scsiop_mode_sense - Simulate MODE SENSE 6, 10 commands
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2284) * @args: device IDENTIFY data / SCSI command of interest.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2285) * @rbuf: Response buffer, to which simulated SCSI cmd output is sent.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2286) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2287) * Simulate MODE SENSE commands. Assume this is invoked for direct
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2288) * access devices (e.g. disks) only. There should be no block
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2289) * descriptor for other device types.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2290) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2291) * LOCKING:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2292) * spin_lock_irqsave(host lock)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2293) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2294) static unsigned int ata_scsiop_mode_sense(struct ata_scsi_args *args, u8 *rbuf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2295) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2296) struct ata_device *dev = args->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2297) u8 *scsicmd = args->cmd->cmnd, *p = rbuf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2298) static const u8 sat_blk_desc[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2299) 0, 0, 0, 0, /* number of blocks: sat unspecified */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2300) 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2301) 0, 0x2, 0x0 /* block length: 512 bytes */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2302) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2303) u8 pg, spg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2304) unsigned int ebd, page_control, six_byte;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2305) u8 dpofua, bp = 0xff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2306) u16 fp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2307)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2308) VPRINTK("ENTER\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2309)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2310) six_byte = (scsicmd[0] == MODE_SENSE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2311) ebd = !(scsicmd[1] & 0x8); /* dbd bit inverted == edb */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2312) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2313) * LLBA bit in msense(10) ignored (compliant)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2314) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2315)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2316) page_control = scsicmd[2] >> 6;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2317) switch (page_control) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2318) case 0: /* current */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2319) case 1: /* changeable */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2320) case 2: /* defaults */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2321) break; /* supported */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2322) case 3: /* saved */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2323) goto saving_not_supp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2324) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2325) fp = 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2326) bp = 6;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2327) goto invalid_fld;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2328) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2329)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2330) if (six_byte)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2331) p += 4 + (ebd ? 8 : 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2332) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2333) p += 8 + (ebd ? 8 : 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2334)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2335) pg = scsicmd[2] & 0x3f;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2336) spg = scsicmd[3];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2337) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2338) * No mode subpages supported (yet) but asking for _all_
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2339) * subpages may be valid
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2340) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2341) if (spg && (spg != ALL_SUB_MPAGES)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2342) fp = 3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2343) goto invalid_fld;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2344) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2345)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2346) switch(pg) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2347) case RW_RECOVERY_MPAGE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2348) p += ata_msense_rw_recovery(p, page_control == 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2349) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2350)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2351) case CACHE_MPAGE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2352) p += ata_msense_caching(args->id, p, page_control == 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2353) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2354)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2355) case CONTROL_MPAGE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2356) p += ata_msense_control(args->dev, p, page_control == 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2357) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2358)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2359) case ALL_MPAGES:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2360) p += ata_msense_rw_recovery(p, page_control == 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2361) p += ata_msense_caching(args->id, p, page_control == 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2362) p += ata_msense_control(args->dev, p, page_control == 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2363) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2364)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2365) default: /* invalid page code */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2366) fp = 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2367) goto invalid_fld;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2368) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2369)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2370) dpofua = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2371) if (ata_dev_supports_fua(args->id) && (dev->flags & ATA_DFLAG_LBA48) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2372) (!(dev->flags & ATA_DFLAG_PIO) || dev->multi_count))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2373) dpofua = 1 << 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2374)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2375) if (six_byte) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2376) rbuf[0] = p - rbuf - 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2377) rbuf[2] |= dpofua;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2378) if (ebd) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2379) rbuf[3] = sizeof(sat_blk_desc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2380) memcpy(rbuf + 4, sat_blk_desc, sizeof(sat_blk_desc));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2381) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2382) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2383) unsigned int output_len = p - rbuf - 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2384)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2385) rbuf[0] = output_len >> 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2386) rbuf[1] = output_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2387) rbuf[3] |= dpofua;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2388) if (ebd) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2389) rbuf[7] = sizeof(sat_blk_desc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2390) memcpy(rbuf + 8, sat_blk_desc, sizeof(sat_blk_desc));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2391) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2392) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2393) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2394)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2395) invalid_fld:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2396) ata_scsi_set_invalid_field(dev, args->cmd, fp, bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2397) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2398)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2399) saving_not_supp:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2400) ata_scsi_set_sense(dev, args->cmd, ILLEGAL_REQUEST, 0x39, 0x0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2401) /* "Saving parameters not supported" */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2402) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2403) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2404)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2405) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2406) * ata_scsiop_read_cap - Simulate READ CAPACITY[ 16] commands
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2407) * @args: device IDENTIFY data / SCSI command of interest.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2408) * @rbuf: Response buffer, to which simulated SCSI cmd output is sent.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2409) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2410) * Simulate READ CAPACITY commands.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2411) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2412) * LOCKING:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2413) * None.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2414) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2415) static unsigned int ata_scsiop_read_cap(struct ata_scsi_args *args, u8 *rbuf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2416) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2417) struct ata_device *dev = args->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2418) u64 last_lba = dev->n_sectors - 1; /* LBA of the last block */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2419) u32 sector_size; /* physical sector size in bytes */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2420) u8 log2_per_phys;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2421) u16 lowest_aligned;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2422)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2423) sector_size = ata_id_logical_sector_size(dev->id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2424) log2_per_phys = ata_id_log2_per_physical_sector(dev->id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2425) lowest_aligned = ata_id_logical_sector_offset(dev->id, log2_per_phys);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2426)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2427) VPRINTK("ENTER\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2428)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2429) if (args->cmd->cmnd[0] == READ_CAPACITY) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2430) if (last_lba >= 0xffffffffULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2431) last_lba = 0xffffffff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2432)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2433) /* sector count, 32-bit */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2434) rbuf[0] = last_lba >> (8 * 3);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2435) rbuf[1] = last_lba >> (8 * 2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2436) rbuf[2] = last_lba >> (8 * 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2437) rbuf[3] = last_lba;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2438)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2439) /* sector size */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2440) rbuf[4] = sector_size >> (8 * 3);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2441) rbuf[5] = sector_size >> (8 * 2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2442) rbuf[6] = sector_size >> (8 * 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2443) rbuf[7] = sector_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2444) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2445) /* sector count, 64-bit */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2446) rbuf[0] = last_lba >> (8 * 7);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2447) rbuf[1] = last_lba >> (8 * 6);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2448) rbuf[2] = last_lba >> (8 * 5);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2449) rbuf[3] = last_lba >> (8 * 4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2450) rbuf[4] = last_lba >> (8 * 3);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2451) rbuf[5] = last_lba >> (8 * 2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2452) rbuf[6] = last_lba >> (8 * 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2453) rbuf[7] = last_lba;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2454)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2455) /* sector size */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2456) rbuf[ 8] = sector_size >> (8 * 3);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2457) rbuf[ 9] = sector_size >> (8 * 2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2458) rbuf[10] = sector_size >> (8 * 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2459) rbuf[11] = sector_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2460)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2461) rbuf[12] = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2462) rbuf[13] = log2_per_phys;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2463) rbuf[14] = (lowest_aligned >> 8) & 0x3f;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2464) rbuf[15] = lowest_aligned;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2465)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2466) if (ata_id_has_trim(args->id) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2467) !(dev->horkage & ATA_HORKAGE_NOTRIM)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2468) rbuf[14] |= 0x80; /* LBPME */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2469)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2470) if (ata_id_has_zero_after_trim(args->id) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2471) dev->horkage & ATA_HORKAGE_ZERO_AFTER_TRIM) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2472) ata_dev_info(dev, "Enabling discard_zeroes_data\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2473) rbuf[14] |= 0x40; /* LBPRZ */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2474) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2475) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2476) if (ata_id_zoned_cap(args->id) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2477) args->dev->class == ATA_DEV_ZAC)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2478) rbuf[12] = (1 << 4); /* RC_BASIS */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2479) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2480) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2481) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2482)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2483) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2484) * ata_scsiop_report_luns - Simulate REPORT LUNS command
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2485) * @args: device IDENTIFY data / SCSI command of interest.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2486) * @rbuf: Response buffer, to which simulated SCSI cmd output is sent.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2487) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2488) * Simulate REPORT LUNS command.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2489) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2490) * LOCKING:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2491) * spin_lock_irqsave(host lock)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2492) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2493) static unsigned int ata_scsiop_report_luns(struct ata_scsi_args *args, u8 *rbuf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2494) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2495) VPRINTK("ENTER\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2496) rbuf[3] = 8; /* just one lun, LUN 0, size 8 bytes */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2497)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2498) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2499) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2500)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2501) static void atapi_sense_complete(struct ata_queued_cmd *qc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2502) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2503) if (qc->err_mask && ((qc->err_mask & AC_ERR_DEV) == 0)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2504) /* FIXME: not quite right; we don't want the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2505) * translation of taskfile registers into
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2506) * a sense descriptors, since that's only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2507) * correct for ATA, not ATAPI
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2508) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2509) ata_gen_passthru_sense(qc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2510) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2511)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2512) ata_qc_done(qc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2513) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2514)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2515) /* is it pointless to prefer PIO for "safety reasons"? */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2516) static inline int ata_pio_use_silly(struct ata_port *ap)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2517) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2518) return (ap->flags & ATA_FLAG_PIO_DMA);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2519) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2520)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2521) static void atapi_request_sense(struct ata_queued_cmd *qc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2522) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2523) struct ata_port *ap = qc->ap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2524) struct scsi_cmnd *cmd = qc->scsicmd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2525)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2526) DPRINTK("ATAPI request sense\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2527)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2528) memset(cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2529)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2530) #ifdef CONFIG_ATA_SFF
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2531) if (ap->ops->sff_tf_read)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2532) ap->ops->sff_tf_read(ap, &qc->tf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2533) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2534)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2535) /* fill these in, for the case where they are -not- overwritten */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2536) cmd->sense_buffer[0] = 0x70;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2537) cmd->sense_buffer[2] = qc->tf.feature >> 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2538)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2539) ata_qc_reinit(qc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2540)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2541) /* setup sg table and init transfer direction */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2542) sg_init_one(&qc->sgent, cmd->sense_buffer, SCSI_SENSE_BUFFERSIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2543) ata_sg_init(qc, &qc->sgent, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2544) qc->dma_dir = DMA_FROM_DEVICE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2545)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2546) memset(&qc->cdb, 0, qc->dev->cdb_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2547) qc->cdb[0] = REQUEST_SENSE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2548) qc->cdb[4] = SCSI_SENSE_BUFFERSIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2549)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2550) qc->tf.flags |= ATA_TFLAG_ISADDR | ATA_TFLAG_DEVICE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2551) qc->tf.command = ATA_CMD_PACKET;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2552)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2553) if (ata_pio_use_silly(ap)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2554) qc->tf.protocol = ATAPI_PROT_DMA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2555) qc->tf.feature |= ATAPI_PKT_DMA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2556) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2557) qc->tf.protocol = ATAPI_PROT_PIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2558) qc->tf.lbam = SCSI_SENSE_BUFFERSIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2559) qc->tf.lbah = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2560) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2561) qc->nbytes = SCSI_SENSE_BUFFERSIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2562)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2563) qc->complete_fn = atapi_sense_complete;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2564)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2565) ata_qc_issue(qc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2566)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2567) DPRINTK("EXIT\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2568) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2569)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2570) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2571) * ATAPI devices typically report zero for their SCSI version, and sometimes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2572) * deviate from the spec WRT response data format. If SCSI version is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2573) * reported as zero like normal, then we make the following fixups:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2574) * 1) Fake MMC-5 version, to indicate to the Linux scsi midlayer this is a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2575) * modern device.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2576) * 2) Ensure response data format / ATAPI information are always correct.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2577) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2578) static void atapi_fixup_inquiry(struct scsi_cmnd *cmd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2579) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2580) u8 buf[4];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2581)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2582) sg_copy_to_buffer(scsi_sglist(cmd), scsi_sg_count(cmd), buf, 4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2583) if (buf[2] == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2584) buf[2] = 0x5;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2585) buf[3] = 0x32;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2586) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2587) sg_copy_from_buffer(scsi_sglist(cmd), scsi_sg_count(cmd), buf, 4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2588) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2589)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2590) static void atapi_qc_complete(struct ata_queued_cmd *qc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2591) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2592) struct scsi_cmnd *cmd = qc->scsicmd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2593) unsigned int err_mask = qc->err_mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2594)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2595) VPRINTK("ENTER, err_mask 0x%X\n", err_mask);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2596)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2597) /* handle completion from new EH */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2598) if (unlikely(qc->ap->ops->error_handler &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2599) (err_mask || qc->flags & ATA_QCFLAG_SENSE_VALID))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2600)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2601) if (!(qc->flags & ATA_QCFLAG_SENSE_VALID)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2602) /* FIXME: not quite right; we don't want the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2603) * translation of taskfile registers into a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2604) * sense descriptors, since that's only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2605) * correct for ATA, not ATAPI
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2606) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2607) ata_gen_passthru_sense(qc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2608) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2609)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2610) /* SCSI EH automatically locks door if sdev->locked is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2611) * set. Sometimes door lock request continues to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2612) * fail, for example, when no media is present. This
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2613) * creates a loop - SCSI EH issues door lock which
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2614) * fails and gets invoked again to acquire sense data
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2615) * for the failed command.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2616) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2617) * If door lock fails, always clear sdev->locked to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2618) * avoid this infinite loop.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2619) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2620) * This may happen before SCSI scan is complete. Make
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2621) * sure qc->dev->sdev isn't NULL before dereferencing.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2622) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2623) if (qc->cdb[0] == ALLOW_MEDIUM_REMOVAL && qc->dev->sdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2624) qc->dev->sdev->locked = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2625)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2626) qc->scsicmd->result = SAM_STAT_CHECK_CONDITION;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2627) ata_qc_done(qc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2628) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2629) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2630)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2631) /* successful completion or old EH failure path */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2632) if (unlikely(err_mask & AC_ERR_DEV)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2633) cmd->result = SAM_STAT_CHECK_CONDITION;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2634) atapi_request_sense(qc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2635) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2636) } else if (unlikely(err_mask)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2637) /* FIXME: not quite right; we don't want the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2638) * translation of taskfile registers into
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2639) * a sense descriptors, since that's only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2640) * correct for ATA, not ATAPI
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2641) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2642) ata_gen_passthru_sense(qc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2643) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2644) if (cmd->cmnd[0] == INQUIRY && (cmd->cmnd[1] & 0x03) == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2645) atapi_fixup_inquiry(cmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2646) cmd->result = SAM_STAT_GOOD;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2647) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2648)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2649) ata_qc_done(qc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2650) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2651) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2652) * atapi_xlat - Initialize PACKET taskfile
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2653) * @qc: command structure to be initialized
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2654) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2655) * LOCKING:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2656) * spin_lock_irqsave(host lock)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2657) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2658) * RETURNS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2659) * Zero on success, non-zero on failure.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2660) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2661) static unsigned int atapi_xlat(struct ata_queued_cmd *qc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2662) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2663) struct scsi_cmnd *scmd = qc->scsicmd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2664) struct ata_device *dev = qc->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2665) int nodata = (scmd->sc_data_direction == DMA_NONE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2666) int using_pio = !nodata && (dev->flags & ATA_DFLAG_PIO);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2667) unsigned int nbytes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2668)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2669) memset(qc->cdb, 0, dev->cdb_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2670) memcpy(qc->cdb, scmd->cmnd, scmd->cmd_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2671)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2672) qc->complete_fn = atapi_qc_complete;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2673)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2674) qc->tf.flags |= ATA_TFLAG_ISADDR | ATA_TFLAG_DEVICE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2675) if (scmd->sc_data_direction == DMA_TO_DEVICE) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2676) qc->tf.flags |= ATA_TFLAG_WRITE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2677) DPRINTK("direction: write\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2678) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2679)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2680) qc->tf.command = ATA_CMD_PACKET;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2681) ata_qc_set_pc_nbytes(qc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2682)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2683) /* check whether ATAPI DMA is safe */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2684) if (!nodata && !using_pio && atapi_check_dma(qc))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2685) using_pio = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2686)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2687) /* Some controller variants snoop this value for Packet
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2688) * transfers to do state machine and FIFO management. Thus we
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2689) * want to set it properly, and for DMA where it is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2690) * effectively meaningless.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2691) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2692) nbytes = min(ata_qc_raw_nbytes(qc), (unsigned int)63 * 1024);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2693)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2694) /* Most ATAPI devices which honor transfer chunk size don't
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2695) * behave according to the spec when odd chunk size which
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2696) * matches the transfer length is specified. If the number of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2697) * bytes to transfer is 2n+1. According to the spec, what
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2698) * should happen is to indicate that 2n+1 is going to be
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2699) * transferred and transfer 2n+2 bytes where the last byte is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2700) * padding.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2701) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2702) * In practice, this doesn't happen. ATAPI devices first
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2703) * indicate and transfer 2n bytes and then indicate and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2704) * transfer 2 bytes where the last byte is padding.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2705) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2706) * This inconsistency confuses several controllers which
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2707) * perform PIO using DMA such as Intel AHCIs and sil3124/32.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2708) * These controllers use actual number of transferred bytes to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2709) * update DMA pointer and transfer of 4n+2 bytes make those
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2710) * controller push DMA pointer by 4n+4 bytes because SATA data
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2711) * FISes are aligned to 4 bytes. This causes data corruption
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2712) * and buffer overrun.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2713) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2714) * Always setting nbytes to even number solves this problem
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2715) * because then ATAPI devices don't have to split data at 2n
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2716) * boundaries.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2717) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2718) if (nbytes & 0x1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2719) nbytes++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2720)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2721) qc->tf.lbam = (nbytes & 0xFF);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2722) qc->tf.lbah = (nbytes >> 8);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2723)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2724) if (nodata)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2725) qc->tf.protocol = ATAPI_PROT_NODATA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2726) else if (using_pio)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2727) qc->tf.protocol = ATAPI_PROT_PIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2728) else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2729) /* DMA data xfer */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2730) qc->tf.protocol = ATAPI_PROT_DMA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2731) qc->tf.feature |= ATAPI_PKT_DMA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2732)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2733) if ((dev->flags & ATA_DFLAG_DMADIR) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2734) (scmd->sc_data_direction != DMA_TO_DEVICE))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2735) /* some SATA bridges need us to indicate data xfer direction */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2736) qc->tf.feature |= ATAPI_DMADIR;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2737) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2738)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2739)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2740) /* FIXME: We need to translate 0x05 READ_BLOCK_LIMITS to a MODE_SENSE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2741) as ATAPI tape drives don't get this right otherwise */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2742) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2743) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2744)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2745) static struct ata_device *ata_find_dev(struct ata_port *ap, int devno)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2746) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2747) if (!sata_pmp_attached(ap)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2748) if (likely(devno >= 0 &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2749) devno < ata_link_max_devices(&ap->link)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2750) return &ap->link.device[devno];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2751) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2752) if (likely(devno >= 0 &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2753) devno < ap->nr_pmp_links))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2754) return &ap->pmp_link[devno].device[0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2755) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2756)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2757) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2758) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2759)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2760) static struct ata_device *__ata_scsi_find_dev(struct ata_port *ap,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2761) const struct scsi_device *scsidev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2762) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2763) int devno;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2764)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2765) /* skip commands not addressed to targets we simulate */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2766) if (!sata_pmp_attached(ap)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2767) if (unlikely(scsidev->channel || scsidev->lun))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2768) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2769) devno = scsidev->id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2770) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2771) if (unlikely(scsidev->id || scsidev->lun))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2772) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2773) devno = scsidev->channel;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2774) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2775)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2776) return ata_find_dev(ap, devno);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2777) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2778)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2779) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2780) * ata_scsi_find_dev - lookup ata_device from scsi_cmnd
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2781) * @ap: ATA port to which the device is attached
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2782) * @scsidev: SCSI device from which we derive the ATA device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2783) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2784) * Given various information provided in struct scsi_cmnd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2785) * map that onto an ATA bus, and using that mapping
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2786) * determine which ata_device is associated with the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2787) * SCSI command to be sent.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2788) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2789) * LOCKING:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2790) * spin_lock_irqsave(host lock)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2791) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2792) * RETURNS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2793) * Associated ATA device, or %NULL if not found.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2794) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2795) struct ata_device *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2796) ata_scsi_find_dev(struct ata_port *ap, const struct scsi_device *scsidev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2797) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2798) struct ata_device *dev = __ata_scsi_find_dev(ap, scsidev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2799)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2800) if (unlikely(!dev || !ata_dev_enabled(dev)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2801) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2802)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2803) return dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2804) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2805)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2806) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2807) * ata_scsi_map_proto - Map pass-thru protocol value to taskfile value.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2808) * @byte1: Byte 1 from pass-thru CDB.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2809) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2810) * RETURNS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2811) * ATA_PROT_UNKNOWN if mapping failed/unimplemented, protocol otherwise.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2812) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2813) static u8
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2814) ata_scsi_map_proto(u8 byte1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2815) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2816) switch((byte1 & 0x1e) >> 1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2817) case 3: /* Non-data */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2818) return ATA_PROT_NODATA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2819)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2820) case 6: /* DMA */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2821) case 10: /* UDMA Data-in */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2822) case 11: /* UDMA Data-Out */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2823) return ATA_PROT_DMA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2824)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2825) case 4: /* PIO Data-in */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2826) case 5: /* PIO Data-out */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2827) return ATA_PROT_PIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2828)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2829) case 12: /* FPDMA */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2830) return ATA_PROT_NCQ;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2831)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2832) case 0: /* Hard Reset */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2833) case 1: /* SRST */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2834) case 8: /* Device Diagnostic */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2835) case 9: /* Device Reset */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2836) case 7: /* DMA Queued */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2837) case 15: /* Return Response Info */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2838) default: /* Reserved */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2839) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2840) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2841)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2842) return ATA_PROT_UNKNOWN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2843) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2844)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2845) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2846) * ata_scsi_pass_thru - convert ATA pass-thru CDB to taskfile
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2847) * @qc: command structure to be initialized
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2848) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2849) * Handles either 12, 16, or 32-byte versions of the CDB.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2850) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2851) * RETURNS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2852) * Zero on success, non-zero on failure.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2853) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2854) static unsigned int ata_scsi_pass_thru(struct ata_queued_cmd *qc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2855) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2856) struct ata_taskfile *tf = &(qc->tf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2857) struct scsi_cmnd *scmd = qc->scsicmd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2858) struct ata_device *dev = qc->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2859) const u8 *cdb = scmd->cmnd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2860) u16 fp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2861) u16 cdb_offset = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2862)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2863) /* 7Fh variable length cmd means a ata pass-thru(32) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2864) if (cdb[0] == VARIABLE_LENGTH_CMD)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2865) cdb_offset = 9;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2866)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2867) tf->protocol = ata_scsi_map_proto(cdb[1 + cdb_offset]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2868) if (tf->protocol == ATA_PROT_UNKNOWN) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2869) fp = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2870) goto invalid_fld;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2871) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2872)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2873) if ((cdb[2 + cdb_offset] & 0x3) == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2874) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2875) * When T_LENGTH is zero (No data is transferred), dir should
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2876) * be DMA_NONE.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2877) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2878) if (scmd->sc_data_direction != DMA_NONE) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2879) fp = 2 + cdb_offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2880) goto invalid_fld;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2881) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2882)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2883) if (ata_is_ncq(tf->protocol))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2884) tf->protocol = ATA_PROT_NCQ_NODATA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2885) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2886)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2887) /* enable LBA */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2888) tf->flags |= ATA_TFLAG_LBA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2889)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2890) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2891) * 12 and 16 byte CDBs use different offsets to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2892) * provide the various register values.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2893) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2894) if (cdb[0] == ATA_16) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2895) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2896) * 16-byte CDB - may contain extended commands.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2897) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2898) * If that is the case, copy the upper byte register values.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2899) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2900) if (cdb[1] & 0x01) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2901) tf->hob_feature = cdb[3];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2902) tf->hob_nsect = cdb[5];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2903) tf->hob_lbal = cdb[7];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2904) tf->hob_lbam = cdb[9];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2905) tf->hob_lbah = cdb[11];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2906) tf->flags |= ATA_TFLAG_LBA48;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2907) } else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2908) tf->flags &= ~ATA_TFLAG_LBA48;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2909)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2910) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2911) * Always copy low byte, device and command registers.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2912) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2913) tf->feature = cdb[4];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2914) tf->nsect = cdb[6];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2915) tf->lbal = cdb[8];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2916) tf->lbam = cdb[10];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2917) tf->lbah = cdb[12];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2918) tf->device = cdb[13];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2919) tf->command = cdb[14];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2920) } else if (cdb[0] == ATA_12) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2921) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2922) * 12-byte CDB - incapable of extended commands.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2923) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2924) tf->flags &= ~ATA_TFLAG_LBA48;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2925)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2926) tf->feature = cdb[3];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2927) tf->nsect = cdb[4];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2928) tf->lbal = cdb[5];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2929) tf->lbam = cdb[6];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2930) tf->lbah = cdb[7];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2931) tf->device = cdb[8];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2932) tf->command = cdb[9];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2933) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2934) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2935) * 32-byte CDB - may contain extended command fields.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2936) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2937) * If that is the case, copy the upper byte register values.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2938) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2939) if (cdb[10] & 0x01) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2940) tf->hob_feature = cdb[20];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2941) tf->hob_nsect = cdb[22];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2942) tf->hob_lbal = cdb[16];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2943) tf->hob_lbam = cdb[15];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2944) tf->hob_lbah = cdb[14];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2945) tf->flags |= ATA_TFLAG_LBA48;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2946) } else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2947) tf->flags &= ~ATA_TFLAG_LBA48;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2948)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2949) tf->feature = cdb[21];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2950) tf->nsect = cdb[23];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2951) tf->lbal = cdb[19];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2952) tf->lbam = cdb[18];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2953) tf->lbah = cdb[17];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2954) tf->device = cdb[24];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2955) tf->command = cdb[25];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2956) tf->auxiliary = get_unaligned_be32(&cdb[28]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2957) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2958)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2959) /* For NCQ commands copy the tag value */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2960) if (ata_is_ncq(tf->protocol))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2961) tf->nsect = qc->hw_tag << 3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2962)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2963) /* enforce correct master/slave bit */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2964) tf->device = dev->devno ?
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2965) tf->device | ATA_DEV1 : tf->device & ~ATA_DEV1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2966)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2967) switch (tf->command) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2968) /* READ/WRITE LONG use a non-standard sect_size */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2969) case ATA_CMD_READ_LONG:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2970) case ATA_CMD_READ_LONG_ONCE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2971) case ATA_CMD_WRITE_LONG:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2972) case ATA_CMD_WRITE_LONG_ONCE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2973) if (tf->protocol != ATA_PROT_PIO || tf->nsect != 1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2974) fp = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2975) goto invalid_fld;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2976) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2977) qc->sect_size = scsi_bufflen(scmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2978) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2979)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2980) /* commands using reported Logical Block size (e.g. 512 or 4K) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2981) case ATA_CMD_CFA_WRITE_NE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2982) case ATA_CMD_CFA_TRANS_SECT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2983) case ATA_CMD_CFA_WRITE_MULT_NE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2984) /* XXX: case ATA_CMD_CFA_WRITE_SECTORS_WITHOUT_ERASE: */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2985) case ATA_CMD_READ:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2986) case ATA_CMD_READ_EXT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2987) case ATA_CMD_READ_QUEUED:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2988) /* XXX: case ATA_CMD_READ_QUEUED_EXT: */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2989) case ATA_CMD_FPDMA_READ:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2990) case ATA_CMD_READ_MULTI:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2991) case ATA_CMD_READ_MULTI_EXT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2992) case ATA_CMD_PIO_READ:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2993) case ATA_CMD_PIO_READ_EXT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2994) case ATA_CMD_READ_STREAM_DMA_EXT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2995) case ATA_CMD_READ_STREAM_EXT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2996) case ATA_CMD_VERIFY:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2997) case ATA_CMD_VERIFY_EXT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2998) case ATA_CMD_WRITE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2999) case ATA_CMD_WRITE_EXT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3000) case ATA_CMD_WRITE_FUA_EXT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3001) case ATA_CMD_WRITE_QUEUED:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3002) case ATA_CMD_WRITE_QUEUED_FUA_EXT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3003) case ATA_CMD_FPDMA_WRITE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3004) case ATA_CMD_WRITE_MULTI:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3005) case ATA_CMD_WRITE_MULTI_EXT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3006) case ATA_CMD_WRITE_MULTI_FUA_EXT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3007) case ATA_CMD_PIO_WRITE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3008) case ATA_CMD_PIO_WRITE_EXT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3009) case ATA_CMD_WRITE_STREAM_DMA_EXT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3010) case ATA_CMD_WRITE_STREAM_EXT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3011) qc->sect_size = scmd->device->sector_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3012) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3013)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3014) /* Everything else uses 512 byte "sectors" */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3015) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3016) qc->sect_size = ATA_SECT_SIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3017) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3018)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3019) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3020) * Set flags so that all registers will be written, pass on
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3021) * write indication (used for PIO/DMA setup), result TF is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3022) * copied back and we don't whine too much about its failure.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3023) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3024) tf->flags |= ATA_TFLAG_ISADDR | ATA_TFLAG_DEVICE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3025) if (scmd->sc_data_direction == DMA_TO_DEVICE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3026) tf->flags |= ATA_TFLAG_WRITE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3027)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3028) qc->flags |= ATA_QCFLAG_RESULT_TF | ATA_QCFLAG_QUIET;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3029)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3030) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3031) * Set transfer length.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3032) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3033) * TODO: find out if we need to do more here to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3034) * cover scatter/gather case.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3035) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3036) ata_qc_set_pc_nbytes(qc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3037)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3038) /* We may not issue DMA commands if no DMA mode is set */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3039) if (tf->protocol == ATA_PROT_DMA && dev->dma_mode == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3040) fp = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3041) goto invalid_fld;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3042) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3043)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3044) /* We may not issue NCQ commands to devices not supporting NCQ */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3045) if (ata_is_ncq(tf->protocol) && !ata_ncq_enabled(dev)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3046) fp = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3047) goto invalid_fld;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3048) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3049)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3050) /* sanity check for pio multi commands */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3051) if ((cdb[1] & 0xe0) && !is_multi_taskfile(tf)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3052) fp = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3053) goto invalid_fld;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3054) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3055)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3056) if (is_multi_taskfile(tf)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3057) unsigned int multi_count = 1 << (cdb[1] >> 5);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3058)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3059) /* compare the passed through multi_count
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3060) * with the cached multi_count of libata
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3061) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3062) if (multi_count != dev->multi_count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3063) ata_dev_warn(dev, "invalid multi_count %u ignored\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3064) multi_count);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3065) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3066)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3067) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3068) * Filter SET_FEATURES - XFER MODE command -- otherwise,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3069) * SET_FEATURES - XFER MODE must be preceded/succeeded
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3070) * by an update to hardware-specific registers for each
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3071) * controller (i.e. the reason for ->set_piomode(),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3072) * ->set_dmamode(), and ->post_set_mode() hooks).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3073) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3074) if (tf->command == ATA_CMD_SET_FEATURES &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3075) tf->feature == SETFEATURES_XFER) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3076) fp = (cdb[0] == ATA_16) ? 4 : 3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3077) goto invalid_fld;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3078) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3079)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3080) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3081) * Filter TPM commands by default. These provide an
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3082) * essentially uncontrolled encrypted "back door" between
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3083) * applications and the disk. Set libata.allow_tpm=1 if you
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3084) * have a real reason for wanting to use them. This ensures
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3085) * that installed software cannot easily mess stuff up without
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3086) * user intent. DVR type users will probably ship with this enabled
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3087) * for movie content management.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3088) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3089) * Note that for ATA8 we can issue a DCS change and DCS freeze lock
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3090) * for this and should do in future but that it is not sufficient as
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3091) * DCS is an optional feature set. Thus we also do the software filter
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3092) * so that we comply with the TC consortium stated goal that the user
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3093) * can turn off TC features of their system.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3094) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3095) if (tf->command >= 0x5C && tf->command <= 0x5F && !libata_allow_tpm) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3096) fp = (cdb[0] == ATA_16) ? 14 : 9;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3097) goto invalid_fld;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3098) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3099)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3100) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3101)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3102) invalid_fld:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3103) ata_scsi_set_invalid_field(dev, scmd, fp, 0xff);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3104) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3105) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3106)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3107) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3108) * ata_format_dsm_trim_descr() - SATL Write Same to DSM Trim
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3109) * @cmd: SCSI command being translated
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3110) * @trmax: Maximum number of entries that will fit in sector_size bytes.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3111) * @sector: Starting sector
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3112) * @count: Total Range of request in logical sectors
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3113) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3114) * Rewrite the WRITE SAME descriptor to be a DSM TRIM little-endian formatted
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3115) * descriptor.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3116) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3117) * Upto 64 entries of the format:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3118) * 63:48 Range Length
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3119) * 47:0 LBA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3120) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3121) * Range Length of 0 is ignored.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3122) * LBA's should be sorted order and not overlap.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3123) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3124) * NOTE: this is the same format as ADD LBA(S) TO NV CACHE PINNED SET
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3125) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3126) * Return: Number of bytes copied into sglist.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3127) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3128) static size_t ata_format_dsm_trim_descr(struct scsi_cmnd *cmd, u32 trmax,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3129) u64 sector, u32 count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3130) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3131) struct scsi_device *sdp = cmd->device;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3132) size_t len = sdp->sector_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3133) size_t r;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3134) __le64 *buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3135) u32 i = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3136) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3137)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3138) WARN_ON(len > ATA_SCSI_RBUF_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3139)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3140) if (len > ATA_SCSI_RBUF_SIZE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3141) len = ATA_SCSI_RBUF_SIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3142)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3143) spin_lock_irqsave(&ata_scsi_rbuf_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3144) buf = ((void *)ata_scsi_rbuf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3145) memset(buf, 0, len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3146) while (i < trmax) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3147) u64 entry = sector |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3148) ((u64)(count > 0xffff ? 0xffff : count) << 48);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3149) buf[i++] = __cpu_to_le64(entry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3150) if (count <= 0xffff)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3151) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3152) count -= 0xffff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3153) sector += 0xffff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3154) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3155) r = sg_copy_from_buffer(scsi_sglist(cmd), scsi_sg_count(cmd), buf, len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3156) spin_unlock_irqrestore(&ata_scsi_rbuf_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3157)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3158) return r;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3159) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3160)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3161) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3162) * ata_scsi_write_same_xlat() - SATL Write Same to ATA SCT Write Same
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3163) * @qc: Command to be translated
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3164) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3165) * Translate a SCSI WRITE SAME command to be either a DSM TRIM command or
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3166) * an SCT Write Same command.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3167) * Based on WRITE SAME has the UNMAP flag:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3168) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3169) * - When set translate to DSM TRIM
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3170) * - When clear translate to SCT Write Same
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3171) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3172) static unsigned int ata_scsi_write_same_xlat(struct ata_queued_cmd *qc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3173) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3174) struct ata_taskfile *tf = &qc->tf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3175) struct scsi_cmnd *scmd = qc->scsicmd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3176) struct scsi_device *sdp = scmd->device;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3177) size_t len = sdp->sector_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3178) struct ata_device *dev = qc->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3179) const u8 *cdb = scmd->cmnd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3180) u64 block;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3181) u32 n_block;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3182) const u32 trmax = len >> 3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3183) u32 size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3184) u16 fp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3185) u8 bp = 0xff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3186) u8 unmap = cdb[1] & 0x8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3187)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3188) /* we may not issue DMA commands if no DMA mode is set */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3189) if (unlikely(!dev->dma_mode))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3190) goto invalid_opcode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3191)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3192) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3193) * We only allow sending this command through the block layer,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3194) * as it modifies the DATA OUT buffer, which would corrupt user
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3195) * memory for SG_IO commands.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3196) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3197) if (unlikely(blk_rq_is_passthrough(scmd->request)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3198) goto invalid_opcode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3199)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3200) if (unlikely(scmd->cmd_len < 16)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3201) fp = 15;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3202) goto invalid_fld;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3203) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3204) scsi_16_lba_len(cdb, &block, &n_block);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3205)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3206) if (!unmap ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3207) (dev->horkage & ATA_HORKAGE_NOTRIM) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3208) !ata_id_has_trim(dev->id)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3209) fp = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3210) bp = 3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3211) goto invalid_fld;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3212) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3213) /* If the request is too large the cmd is invalid */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3214) if (n_block > 0xffff * trmax) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3215) fp = 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3216) goto invalid_fld;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3217) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3218)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3219) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3220) * WRITE SAME always has a sector sized buffer as payload, this
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3221) * should never be a multiple entry S/G list.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3222) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3223) if (!scsi_sg_count(scmd))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3224) goto invalid_param_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3225)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3226) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3227) * size must match sector size in bytes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3228) * For DATA SET MANAGEMENT TRIM in ACS-2 nsect (aka count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3229) * is defined as number of 512 byte blocks to be transferred.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3230) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3231)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3232) size = ata_format_dsm_trim_descr(scmd, trmax, block, n_block);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3233) if (size != len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3234) goto invalid_param_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3235)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3236) if (ata_ncq_enabled(dev) && ata_fpdma_dsm_supported(dev)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3237) /* Newer devices support queued TRIM commands */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3238) tf->protocol = ATA_PROT_NCQ;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3239) tf->command = ATA_CMD_FPDMA_SEND;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3240) tf->hob_nsect = ATA_SUBCMD_FPDMA_SEND_DSM & 0x1f;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3241) tf->nsect = qc->hw_tag << 3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3242) tf->hob_feature = (size / 512) >> 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3243) tf->feature = size / 512;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3244)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3245) tf->auxiliary = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3246) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3247) tf->protocol = ATA_PROT_DMA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3248) tf->hob_feature = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3249) tf->feature = ATA_DSM_TRIM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3250) tf->hob_nsect = (size / 512) >> 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3251) tf->nsect = size / 512;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3252) tf->command = ATA_CMD_DSM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3253) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3254)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3255) tf->flags |= ATA_TFLAG_ISADDR | ATA_TFLAG_DEVICE | ATA_TFLAG_LBA48 |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3256) ATA_TFLAG_WRITE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3257)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3258) ata_qc_set_pc_nbytes(qc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3259)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3260) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3261)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3262) invalid_fld:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3263) ata_scsi_set_invalid_field(dev, scmd, fp, bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3264) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3265) invalid_param_len:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3266) /* "Parameter list length error" */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3267) ata_scsi_set_sense(dev, scmd, ILLEGAL_REQUEST, 0x1a, 0x0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3268) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3269) invalid_opcode:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3270) /* "Invalid command operation code" */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3271) ata_scsi_set_sense(dev, scmd, ILLEGAL_REQUEST, 0x20, 0x0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3272) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3273) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3274)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3275) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3276) * ata_scsiop_maint_in - Simulate a subset of MAINTENANCE_IN
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3277) * @args: device MAINTENANCE_IN data / SCSI command of interest.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3278) * @rbuf: Response buffer, to which simulated SCSI cmd output is sent.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3279) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3280) * Yields a subset to satisfy scsi_report_opcode()
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3281) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3282) * LOCKING:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3283) * spin_lock_irqsave(host lock)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3284) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3285) static unsigned int ata_scsiop_maint_in(struct ata_scsi_args *args, u8 *rbuf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3286) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3287) struct ata_device *dev = args->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3288) u8 *cdb = args->cmd->cmnd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3289) u8 supported = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3290) unsigned int err = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3291)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3292) if (cdb[2] != 1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3293) ata_dev_warn(dev, "invalid command format %d\n", cdb[2]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3294) err = 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3295) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3296) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3297) switch (cdb[3]) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3298) case INQUIRY:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3299) case MODE_SENSE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3300) case MODE_SENSE_10:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3301) case READ_CAPACITY:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3302) case SERVICE_ACTION_IN_16:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3303) case REPORT_LUNS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3304) case REQUEST_SENSE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3305) case SYNCHRONIZE_CACHE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3306) case REZERO_UNIT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3307) case SEEK_6:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3308) case SEEK_10:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3309) case TEST_UNIT_READY:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3310) case SEND_DIAGNOSTIC:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3311) case MAINTENANCE_IN:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3312) case READ_6:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3313) case READ_10:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3314) case READ_16:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3315) case WRITE_6:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3316) case WRITE_10:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3317) case WRITE_16:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3318) case ATA_12:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3319) case ATA_16:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3320) case VERIFY:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3321) case VERIFY_16:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3322) case MODE_SELECT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3323) case MODE_SELECT_10:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3324) case START_STOP:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3325) supported = 3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3326) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3327) case ZBC_IN:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3328) case ZBC_OUT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3329) if (ata_id_zoned_cap(dev->id) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3330) dev->class == ATA_DEV_ZAC)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3331) supported = 3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3332) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3333) case SECURITY_PROTOCOL_IN:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3334) case SECURITY_PROTOCOL_OUT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3335) if (dev->flags & ATA_DFLAG_TRUSTED)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3336) supported = 3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3337) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3338) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3339) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3340) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3341) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3342) rbuf[1] = supported; /* supported */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3343) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3344) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3345)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3346) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3347) * ata_scsi_report_zones_complete - convert ATA output
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3348) * @qc: command structure returning the data
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3349) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3350) * Convert T-13 little-endian field representation into
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3351) * T-10 big-endian field representation.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3352) * What a mess.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3353) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3354) static void ata_scsi_report_zones_complete(struct ata_queued_cmd *qc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3355) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3356) struct scsi_cmnd *scmd = qc->scsicmd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3357) struct sg_mapping_iter miter;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3358) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3359) unsigned int bytes = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3360)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3361) sg_miter_start(&miter, scsi_sglist(scmd), scsi_sg_count(scmd),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3362) SG_MITER_TO_SG | SG_MITER_ATOMIC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3363)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3364) local_irq_save(flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3365) while (sg_miter_next(&miter)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3366) unsigned int offset = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3367)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3368) if (bytes == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3369) char *hdr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3370) u32 list_length;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3371) u64 max_lba, opt_lba;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3372) u16 same;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3373)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3374) /* Swizzle header */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3375) hdr = miter.addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3376) list_length = get_unaligned_le32(&hdr[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3377) same = get_unaligned_le16(&hdr[4]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3378) max_lba = get_unaligned_le64(&hdr[8]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3379) opt_lba = get_unaligned_le64(&hdr[16]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3380) put_unaligned_be32(list_length, &hdr[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3381) hdr[4] = same & 0xf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3382) put_unaligned_be64(max_lba, &hdr[8]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3383) put_unaligned_be64(opt_lba, &hdr[16]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3384) offset += 64;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3385) bytes += 64;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3386) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3387) while (offset < miter.length) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3388) char *rec;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3389) u8 cond, type, non_seq, reset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3390) u64 size, start, wp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3391)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3392) /* Swizzle zone descriptor */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3393) rec = miter.addr + offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3394) type = rec[0] & 0xf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3395) cond = (rec[1] >> 4) & 0xf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3396) non_seq = (rec[1] & 2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3397) reset = (rec[1] & 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3398) size = get_unaligned_le64(&rec[8]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3399) start = get_unaligned_le64(&rec[16]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3400) wp = get_unaligned_le64(&rec[24]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3401) rec[0] = type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3402) rec[1] = (cond << 4) | non_seq | reset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3403) put_unaligned_be64(size, &rec[8]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3404) put_unaligned_be64(start, &rec[16]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3405) put_unaligned_be64(wp, &rec[24]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3406) WARN_ON(offset + 64 > miter.length);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3407) offset += 64;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3408) bytes += 64;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3409) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3410) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3411) sg_miter_stop(&miter);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3412) local_irq_restore(flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3413)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3414) ata_scsi_qc_complete(qc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3415) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3416)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3417) static unsigned int ata_scsi_zbc_in_xlat(struct ata_queued_cmd *qc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3418) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3419) struct ata_taskfile *tf = &qc->tf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3420) struct scsi_cmnd *scmd = qc->scsicmd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3421) const u8 *cdb = scmd->cmnd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3422) u16 sect, fp = (u16)-1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3423) u8 sa, options, bp = 0xff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3424) u64 block;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3425) u32 n_block;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3426)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3427) if (unlikely(scmd->cmd_len < 16)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3428) ata_dev_warn(qc->dev, "invalid cdb length %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3429) scmd->cmd_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3430) fp = 15;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3431) goto invalid_fld;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3432) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3433) scsi_16_lba_len(cdb, &block, &n_block);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3434) if (n_block != scsi_bufflen(scmd)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3435) ata_dev_warn(qc->dev, "non-matching transfer count (%d/%d)\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3436) n_block, scsi_bufflen(scmd));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3437) goto invalid_param_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3438) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3439) sa = cdb[1] & 0x1f;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3440) if (sa != ZI_REPORT_ZONES) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3441) ata_dev_warn(qc->dev, "invalid service action %d\n", sa);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3442) fp = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3443) goto invalid_fld;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3444) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3445) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3446) * ZAC allows only for transfers in 512 byte blocks,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3447) * and uses a 16 bit value for the transfer count.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3448) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3449) if ((n_block / 512) > 0xffff || n_block < 512 || (n_block % 512)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3450) ata_dev_warn(qc->dev, "invalid transfer count %d\n", n_block);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3451) goto invalid_param_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3452) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3453) sect = n_block / 512;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3454) options = cdb[14] & 0xbf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3455)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3456) if (ata_ncq_enabled(qc->dev) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3457) ata_fpdma_zac_mgmt_in_supported(qc->dev)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3458) tf->protocol = ATA_PROT_NCQ;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3459) tf->command = ATA_CMD_FPDMA_RECV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3460) tf->hob_nsect = ATA_SUBCMD_FPDMA_RECV_ZAC_MGMT_IN & 0x1f;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3461) tf->nsect = qc->hw_tag << 3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3462) tf->feature = sect & 0xff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3463) tf->hob_feature = (sect >> 8) & 0xff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3464) tf->auxiliary = ATA_SUBCMD_ZAC_MGMT_IN_REPORT_ZONES | (options << 8);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3465) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3466) tf->command = ATA_CMD_ZAC_MGMT_IN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3467) tf->feature = ATA_SUBCMD_ZAC_MGMT_IN_REPORT_ZONES;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3468) tf->protocol = ATA_PROT_DMA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3469) tf->hob_feature = options;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3470) tf->hob_nsect = (sect >> 8) & 0xff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3471) tf->nsect = sect & 0xff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3472) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3473) tf->device = ATA_LBA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3474) tf->lbah = (block >> 16) & 0xff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3475) tf->lbam = (block >> 8) & 0xff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3476) tf->lbal = block & 0xff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3477) tf->hob_lbah = (block >> 40) & 0xff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3478) tf->hob_lbam = (block >> 32) & 0xff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3479) tf->hob_lbal = (block >> 24) & 0xff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3480)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3481) tf->flags |= ATA_TFLAG_ISADDR | ATA_TFLAG_DEVICE | ATA_TFLAG_LBA48;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3482) qc->flags |= ATA_QCFLAG_RESULT_TF;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3483)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3484) ata_qc_set_pc_nbytes(qc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3485)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3486) qc->complete_fn = ata_scsi_report_zones_complete;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3487)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3488) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3489)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3490) invalid_fld:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3491) ata_scsi_set_invalid_field(qc->dev, scmd, fp, bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3492) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3493)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3494) invalid_param_len:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3495) /* "Parameter list length error" */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3496) ata_scsi_set_sense(qc->dev, scmd, ILLEGAL_REQUEST, 0x1a, 0x0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3497) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3498) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3499)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3500) static unsigned int ata_scsi_zbc_out_xlat(struct ata_queued_cmd *qc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3501) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3502) struct ata_taskfile *tf = &qc->tf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3503) struct scsi_cmnd *scmd = qc->scsicmd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3504) struct ata_device *dev = qc->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3505) const u8 *cdb = scmd->cmnd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3506) u8 all, sa;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3507) u64 block;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3508) u32 n_block;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3509) u16 fp = (u16)-1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3510)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3511) if (unlikely(scmd->cmd_len < 16)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3512) fp = 15;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3513) goto invalid_fld;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3514) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3515)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3516) sa = cdb[1] & 0x1f;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3517) if ((sa != ZO_CLOSE_ZONE) && (sa != ZO_FINISH_ZONE) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3518) (sa != ZO_OPEN_ZONE) && (sa != ZO_RESET_WRITE_POINTER)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3519) fp = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3520) goto invalid_fld;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3521) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3522)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3523) scsi_16_lba_len(cdb, &block, &n_block);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3524) if (n_block) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3525) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3526) * ZAC MANAGEMENT OUT doesn't define any length
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3527) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3528) goto invalid_param_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3529) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3530)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3531) all = cdb[14] & 0x1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3532) if (all) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3533) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3534) * Ignore the block address (zone ID) as defined by ZBC.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3535) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3536) block = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3537) } else if (block >= dev->n_sectors) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3538) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3539) * Block must be a valid zone ID (a zone start LBA).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3540) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3541) fp = 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3542) goto invalid_fld;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3543) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3544)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3545) if (ata_ncq_enabled(qc->dev) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3546) ata_fpdma_zac_mgmt_out_supported(qc->dev)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3547) tf->protocol = ATA_PROT_NCQ_NODATA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3548) tf->command = ATA_CMD_NCQ_NON_DATA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3549) tf->feature = ATA_SUBCMD_NCQ_NON_DATA_ZAC_MGMT_OUT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3550) tf->nsect = qc->hw_tag << 3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3551) tf->auxiliary = sa | ((u16)all << 8);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3552) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3553) tf->protocol = ATA_PROT_NODATA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3554) tf->command = ATA_CMD_ZAC_MGMT_OUT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3555) tf->feature = sa;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3556) tf->hob_feature = all;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3557) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3558) tf->lbah = (block >> 16) & 0xff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3559) tf->lbam = (block >> 8) & 0xff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3560) tf->lbal = block & 0xff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3561) tf->hob_lbah = (block >> 40) & 0xff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3562) tf->hob_lbam = (block >> 32) & 0xff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3563) tf->hob_lbal = (block >> 24) & 0xff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3564) tf->device = ATA_LBA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3565) tf->flags |= ATA_TFLAG_ISADDR | ATA_TFLAG_DEVICE | ATA_TFLAG_LBA48;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3566)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3567) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3568)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3569) invalid_fld:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3570) ata_scsi_set_invalid_field(qc->dev, scmd, fp, 0xff);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3571) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3572) invalid_param_len:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3573) /* "Parameter list length error" */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3574) ata_scsi_set_sense(qc->dev, scmd, ILLEGAL_REQUEST, 0x1a, 0x0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3575) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3576) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3577)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3578) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3579) * ata_mselect_caching - Simulate MODE SELECT for caching info page
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3580) * @qc: Storage for translated ATA taskfile
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3581) * @buf: input buffer
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3582) * @len: number of valid bytes in the input buffer
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3583) * @fp: out parameter for the failed field on error
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3584) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3585) * Prepare a taskfile to modify caching information for the device.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3586) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3587) * LOCKING:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3588) * None.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3589) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3590) static int ata_mselect_caching(struct ata_queued_cmd *qc,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3591) const u8 *buf, int len, u16 *fp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3592) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3593) struct ata_taskfile *tf = &qc->tf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3594) struct ata_device *dev = qc->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3595) u8 mpage[CACHE_MPAGE_LEN];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3596) u8 wce;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3597) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3598)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3599) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3600) * The first two bytes of def_cache_mpage are a header, so offsets
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3601) * in mpage are off by 2 compared to buf. Same for len.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3602) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3603)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3604) if (len != CACHE_MPAGE_LEN - 2) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3605) if (len < CACHE_MPAGE_LEN - 2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3606) *fp = len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3607) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3608) *fp = CACHE_MPAGE_LEN - 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3609) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3610) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3611)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3612) wce = buf[0] & (1 << 2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3613)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3614) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3615) * Check that read-only bits are not modified.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3616) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3617) ata_msense_caching(dev->id, mpage, false);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3618) for (i = 0; i < CACHE_MPAGE_LEN - 2; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3619) if (i == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3620) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3621) if (mpage[i + 2] != buf[i]) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3622) *fp = i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3623) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3624) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3625) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3626)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3627) tf->flags |= ATA_TFLAG_DEVICE | ATA_TFLAG_ISADDR;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3628) tf->protocol = ATA_PROT_NODATA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3629) tf->nsect = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3630) tf->command = ATA_CMD_SET_FEATURES;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3631) tf->feature = wce ? SETFEATURES_WC_ON : SETFEATURES_WC_OFF;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3632) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3633) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3634)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3635) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3636) * ata_mselect_control - Simulate MODE SELECT for control page
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3637) * @qc: Storage for translated ATA taskfile
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3638) * @buf: input buffer
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3639) * @len: number of valid bytes in the input buffer
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3640) * @fp: out parameter for the failed field on error
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3641) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3642) * Prepare a taskfile to modify caching information for the device.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3643) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3644) * LOCKING:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3645) * None.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3646) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3647) static int ata_mselect_control(struct ata_queued_cmd *qc,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3648) const u8 *buf, int len, u16 *fp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3649) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3650) struct ata_device *dev = qc->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3651) u8 mpage[CONTROL_MPAGE_LEN];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3652) u8 d_sense;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3653) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3654)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3655) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3656) * The first two bytes of def_control_mpage are a header, so offsets
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3657) * in mpage are off by 2 compared to buf. Same for len.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3658) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3659)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3660) if (len != CONTROL_MPAGE_LEN - 2) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3661) if (len < CONTROL_MPAGE_LEN - 2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3662) *fp = len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3663) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3664) *fp = CONTROL_MPAGE_LEN - 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3665) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3666) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3667)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3668) d_sense = buf[0] & (1 << 2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3669)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3670) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3671) * Check that read-only bits are not modified.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3672) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3673) ata_msense_control(dev, mpage, false);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3674) for (i = 0; i < CONTROL_MPAGE_LEN - 2; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3675) if (i == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3676) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3677) if (mpage[2 + i] != buf[i]) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3678) *fp = i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3679) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3680) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3681) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3682) if (d_sense & (1 << 2))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3683) dev->flags |= ATA_DFLAG_D_SENSE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3684) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3685) dev->flags &= ~ATA_DFLAG_D_SENSE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3686) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3687) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3688)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3689) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3690) * ata_scsi_mode_select_xlat - Simulate MODE SELECT 6, 10 commands
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3691) * @qc: Storage for translated ATA taskfile
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3692) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3693) * Converts a MODE SELECT command to an ATA SET FEATURES taskfile.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3694) * Assume this is invoked for direct access devices (e.g. disks) only.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3695) * There should be no block descriptor for other device types.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3696) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3697) * LOCKING:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3698) * spin_lock_irqsave(host lock)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3699) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3700) static unsigned int ata_scsi_mode_select_xlat(struct ata_queued_cmd *qc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3701) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3702) struct scsi_cmnd *scmd = qc->scsicmd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3703) const u8 *cdb = scmd->cmnd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3704) u8 pg, spg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3705) unsigned six_byte, pg_len, hdr_len, bd_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3706) int len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3707) u16 fp = (u16)-1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3708) u8 bp = 0xff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3709) u8 buffer[64];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3710) const u8 *p = buffer;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3711)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3712) VPRINTK("ENTER\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3713)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3714) six_byte = (cdb[0] == MODE_SELECT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3715) if (six_byte) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3716) if (scmd->cmd_len < 5) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3717) fp = 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3718) goto invalid_fld;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3719) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3720)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3721) len = cdb[4];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3722) hdr_len = 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3723) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3724) if (scmd->cmd_len < 9) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3725) fp = 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3726) goto invalid_fld;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3727) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3728)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3729) len = (cdb[7] << 8) + cdb[8];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3730) hdr_len = 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3731) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3732)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3733) /* We only support PF=1, SP=0. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3734) if ((cdb[1] & 0x11) != 0x10) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3735) fp = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3736) bp = (cdb[1] & 0x01) ? 1 : 5;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3737) goto invalid_fld;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3738) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3739)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3740) /* Test early for possible overrun. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3741) if (!scsi_sg_count(scmd) || scsi_sglist(scmd)->length < len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3742) goto invalid_param_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3743)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3744) /* Move past header and block descriptors. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3745) if (len < hdr_len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3746) goto invalid_param_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3747)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3748) if (!sg_copy_to_buffer(scsi_sglist(scmd), scsi_sg_count(scmd),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3749) buffer, sizeof(buffer)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3750) goto invalid_param_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3751)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3752) if (six_byte)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3753) bd_len = p[3];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3754) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3755) bd_len = (p[6] << 8) + p[7];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3756)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3757) len -= hdr_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3758) p += hdr_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3759) if (len < bd_len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3760) goto invalid_param_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3761) if (bd_len != 0 && bd_len != 8) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3762) fp = (six_byte) ? 3 : 6;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3763) fp += bd_len + hdr_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3764) goto invalid_param;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3765) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3766)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3767) len -= bd_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3768) p += bd_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3769) if (len == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3770) goto skip;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3771)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3772) /* Parse both possible formats for the mode page headers. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3773) pg = p[0] & 0x3f;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3774) if (p[0] & 0x40) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3775) if (len < 4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3776) goto invalid_param_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3777)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3778) spg = p[1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3779) pg_len = (p[2] << 8) | p[3];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3780) p += 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3781) len -= 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3782) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3783) if (len < 2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3784) goto invalid_param_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3785)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3786) spg = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3787) pg_len = p[1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3788) p += 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3789) len -= 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3790) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3791)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3792) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3793) * No mode subpages supported (yet) but asking for _all_
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3794) * subpages may be valid
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3795) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3796) if (spg && (spg != ALL_SUB_MPAGES)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3797) fp = (p[0] & 0x40) ? 1 : 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3798) fp += hdr_len + bd_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3799) goto invalid_param;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3800) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3801) if (pg_len > len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3802) goto invalid_param_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3803)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3804) switch (pg) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3805) case CACHE_MPAGE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3806) if (ata_mselect_caching(qc, p, pg_len, &fp) < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3807) fp += hdr_len + bd_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3808) goto invalid_param;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3809) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3810) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3811) case CONTROL_MPAGE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3812) if (ata_mselect_control(qc, p, pg_len, &fp) < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3813) fp += hdr_len + bd_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3814) goto invalid_param;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3815) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3816) goto skip; /* No ATA command to send */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3817) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3818) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3819) default: /* invalid page code */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3820) fp = bd_len + hdr_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3821) goto invalid_param;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3822) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3823)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3824) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3825) * Only one page has changeable data, so we only support setting one
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3826) * page at a time.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3827) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3828) if (len > pg_len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3829) goto invalid_param;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3830)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3831) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3832)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3833) invalid_fld:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3834) ata_scsi_set_invalid_field(qc->dev, scmd, fp, bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3835) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3836)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3837) invalid_param:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3838) ata_scsi_set_invalid_parameter(qc->dev, scmd, fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3839) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3840)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3841) invalid_param_len:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3842) /* "Parameter list length error" */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3843) ata_scsi_set_sense(qc->dev, scmd, ILLEGAL_REQUEST, 0x1a, 0x0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3844) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3845)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3846) skip:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3847) scmd->result = SAM_STAT_GOOD;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3848) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3849) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3850)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3851) static u8 ata_scsi_trusted_op(u32 len, bool send, bool dma)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3852) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3853) if (len == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3854) return ATA_CMD_TRUSTED_NONDATA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3855) else if (send)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3856) return dma ? ATA_CMD_TRUSTED_SND_DMA : ATA_CMD_TRUSTED_SND;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3857) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3858) return dma ? ATA_CMD_TRUSTED_RCV_DMA : ATA_CMD_TRUSTED_RCV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3859) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3860)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3861) static unsigned int ata_scsi_security_inout_xlat(struct ata_queued_cmd *qc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3862) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3863) struct scsi_cmnd *scmd = qc->scsicmd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3864) const u8 *cdb = scmd->cmnd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3865) struct ata_taskfile *tf = &qc->tf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3866) u8 secp = cdb[1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3867) bool send = (cdb[0] == SECURITY_PROTOCOL_OUT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3868) u16 spsp = get_unaligned_be16(&cdb[2]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3869) u32 len = get_unaligned_be32(&cdb[6]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3870) bool dma = !(qc->dev->flags & ATA_DFLAG_PIO);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3871)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3872) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3873) * We don't support the ATA "security" protocol.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3874) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3875) if (secp == 0xef) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3876) ata_scsi_set_invalid_field(qc->dev, scmd, 1, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3877) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3878) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3879)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3880) if (cdb[4] & 7) { /* INC_512 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3881) if (len > 0xffff) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3882) ata_scsi_set_invalid_field(qc->dev, scmd, 6, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3883) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3884) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3885) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3886) if (len > 0x01fffe00) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3887) ata_scsi_set_invalid_field(qc->dev, scmd, 6, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3888) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3889) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3890)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3891) /* convert to the sector-based ATA addressing */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3892) len = (len + 511) / 512;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3893) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3894)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3895) tf->protocol = dma ? ATA_PROT_DMA : ATA_PROT_PIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3896) tf->flags |= ATA_TFLAG_DEVICE | ATA_TFLAG_ISADDR | ATA_TFLAG_LBA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3897) if (send)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3898) tf->flags |= ATA_TFLAG_WRITE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3899) tf->command = ata_scsi_trusted_op(len, send, dma);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3900) tf->feature = secp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3901) tf->lbam = spsp & 0xff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3902) tf->lbah = spsp >> 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3903)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3904) if (len) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3905) tf->nsect = len & 0xff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3906) tf->lbal = len >> 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3907) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3908) if (!send)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3909) tf->lbah = (1 << 7);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3910) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3911)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3912) ata_qc_set_pc_nbytes(qc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3913) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3914) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3915)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3916) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3917) * ata_scsi_var_len_cdb_xlat - SATL variable length CDB to Handler
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3918) * @qc: Command to be translated
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3919) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3920) * Translate a SCSI variable length CDB to specified commands.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3921) * It checks a service action value in CDB to call corresponding handler.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3922) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3923) * RETURNS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3924) * Zero on success, non-zero on failure
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3925) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3926) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3927) static unsigned int ata_scsi_var_len_cdb_xlat(struct ata_queued_cmd *qc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3928) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3929) struct scsi_cmnd *scmd = qc->scsicmd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3930) const u8 *cdb = scmd->cmnd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3931) const u16 sa = get_unaligned_be16(&cdb[8]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3932)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3933) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3934) * if service action represents a ata pass-thru(32) command,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3935) * then pass it to ata_scsi_pass_thru handler.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3936) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3937) if (sa == ATA_32)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3938) return ata_scsi_pass_thru(qc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3939)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3940) /* unsupported service action */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3941) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3942) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3943)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3944) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3945) * ata_get_xlat_func - check if SCSI to ATA translation is possible
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3946) * @dev: ATA device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3947) * @cmd: SCSI command opcode to consider
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3948) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3949) * Look up the SCSI command given, and determine whether the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3950) * SCSI command is to be translated or simulated.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3951) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3952) * RETURNS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3953) * Pointer to translation function if possible, %NULL if not.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3954) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3955)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3956) static inline ata_xlat_func_t ata_get_xlat_func(struct ata_device *dev, u8 cmd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3957) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3958) switch (cmd) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3959) case READ_6:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3960) case READ_10:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3961) case READ_16:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3962)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3963) case WRITE_6:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3964) case WRITE_10:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3965) case WRITE_16:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3966) return ata_scsi_rw_xlat;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3967)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3968) case WRITE_SAME_16:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3969) return ata_scsi_write_same_xlat;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3970)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3971) case SYNCHRONIZE_CACHE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3972) if (ata_try_flush_cache(dev))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3973) return ata_scsi_flush_xlat;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3974) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3975)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3976) case VERIFY:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3977) case VERIFY_16:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3978) return ata_scsi_verify_xlat;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3979)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3980) case ATA_12:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3981) case ATA_16:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3982) return ata_scsi_pass_thru;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3983)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3984) case VARIABLE_LENGTH_CMD:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3985) return ata_scsi_var_len_cdb_xlat;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3986)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3987) case MODE_SELECT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3988) case MODE_SELECT_10:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3989) return ata_scsi_mode_select_xlat;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3990) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3991)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3992) case ZBC_IN:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3993) return ata_scsi_zbc_in_xlat;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3994)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3995) case ZBC_OUT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3996) return ata_scsi_zbc_out_xlat;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3997)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3998) case SECURITY_PROTOCOL_IN:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3999) case SECURITY_PROTOCOL_OUT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4000) if (!(dev->flags & ATA_DFLAG_TRUSTED))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4001) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4002) return ata_scsi_security_inout_xlat;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4003)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4004) case START_STOP:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4005) return ata_scsi_start_stop_xlat;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4006) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4007)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4008) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4009) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4010)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4011) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4012) * ata_scsi_dump_cdb - dump SCSI command contents to dmesg
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4013) * @ap: ATA port to which the command was being sent
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4014) * @cmd: SCSI command to dump
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4015) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4016) * Prints the contents of a SCSI command via printk().
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4017) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4018)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4019) void ata_scsi_dump_cdb(struct ata_port *ap, struct scsi_cmnd *cmd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4020) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4021) #ifdef ATA_VERBOSE_DEBUG
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4022) struct scsi_device *scsidev = cmd->device;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4023)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4024) VPRINTK("CDB (%u:%d,%d,%lld) %9ph\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4025) ap->print_id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4026) scsidev->channel, scsidev->id, scsidev->lun,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4027) cmd->cmnd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4028) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4029) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4030)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4031) int __ata_scsi_queuecmd(struct scsi_cmnd *scmd, struct ata_device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4032) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4033) u8 scsi_op = scmd->cmnd[0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4034) ata_xlat_func_t xlat_func;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4035) int rc = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4036)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4037) if (dev->class == ATA_DEV_ATA || dev->class == ATA_DEV_ZAC) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4038) if (unlikely(!scmd->cmd_len || scmd->cmd_len > dev->cdb_len))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4039) goto bad_cdb_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4040)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4041) xlat_func = ata_get_xlat_func(dev, scsi_op);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4042) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4043) if (unlikely(!scmd->cmd_len))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4044) goto bad_cdb_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4045)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4046) xlat_func = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4047) if (likely((scsi_op != ATA_16) || !atapi_passthru16)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4048) /* relay SCSI command to ATAPI device */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4049) int len = COMMAND_SIZE(scsi_op);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4050) if (unlikely(len > scmd->cmd_len ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4051) len > dev->cdb_len ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4052) scmd->cmd_len > ATAPI_CDB_LEN))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4053) goto bad_cdb_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4054)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4055) xlat_func = atapi_xlat;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4056) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4057) /* ATA_16 passthru, treat as an ATA command */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4058) if (unlikely(scmd->cmd_len > 16))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4059) goto bad_cdb_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4060)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4061) xlat_func = ata_get_xlat_func(dev, scsi_op);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4062) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4063) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4064)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4065) if (xlat_func)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4066) rc = ata_scsi_translate(dev, scmd, xlat_func);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4067) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4068) ata_scsi_simulate(dev, scmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4069)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4070) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4071)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4072) bad_cdb_len:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4073) DPRINTK("bad CDB len=%u, scsi_op=0x%02x, max=%u\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4074) scmd->cmd_len, scsi_op, dev->cdb_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4075) scmd->result = DID_ERROR << 16;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4076) scmd->scsi_done(scmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4077) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4078) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4079)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4080) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4081) * ata_scsi_queuecmd - Issue SCSI cdb to libata-managed device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4082) * @shost: SCSI host of command to be sent
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4083) * @cmd: SCSI command to be sent
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4084) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4085) * In some cases, this function translates SCSI commands into
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4086) * ATA taskfiles, and queues the taskfiles to be sent to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4087) * hardware. In other cases, this function simulates a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4088) * SCSI device by evaluating and responding to certain
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4089) * SCSI commands. This creates the overall effect of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4090) * ATA and ATAPI devices appearing as SCSI devices.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4091) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4092) * LOCKING:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4093) * ATA host lock
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4094) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4095) * RETURNS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4096) * Return value from __ata_scsi_queuecmd() if @cmd can be queued,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4097) * 0 otherwise.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4098) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4099) int ata_scsi_queuecmd(struct Scsi_Host *shost, struct scsi_cmnd *cmd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4100) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4101) struct ata_port *ap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4102) struct ata_device *dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4103) struct scsi_device *scsidev = cmd->device;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4104) int rc = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4105) unsigned long irq_flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4106)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4107) ap = ata_shost_to_port(shost);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4108)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4109) spin_lock_irqsave(ap->lock, irq_flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4110)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4111) ata_scsi_dump_cdb(ap, cmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4112)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4113) dev = ata_scsi_find_dev(ap, scsidev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4114) if (likely(dev))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4115) rc = __ata_scsi_queuecmd(cmd, dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4116) else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4117) cmd->result = (DID_BAD_TARGET << 16);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4118) cmd->scsi_done(cmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4119) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4120)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4121) spin_unlock_irqrestore(ap->lock, irq_flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4122)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4123) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4124) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4125) EXPORT_SYMBOL_GPL(ata_scsi_queuecmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4126)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4127) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4128) * ata_scsi_simulate - simulate SCSI command on ATA device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4129) * @dev: the target device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4130) * @cmd: SCSI command being sent to device.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4131) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4132) * Interprets and directly executes a select list of SCSI commands
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4133) * that can be handled internally.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4134) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4135) * LOCKING:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4136) * spin_lock_irqsave(host lock)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4137) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4138)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4139) void ata_scsi_simulate(struct ata_device *dev, struct scsi_cmnd *cmd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4140) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4141) struct ata_scsi_args args;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4142) const u8 *scsicmd = cmd->cmnd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4143) u8 tmp8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4144)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4145) args.dev = dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4146) args.id = dev->id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4147) args.cmd = cmd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4148)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4149) switch(scsicmd[0]) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4150) case INQUIRY:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4151) if (scsicmd[1] & 2) /* is CmdDt set? */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4152) ata_scsi_set_invalid_field(dev, cmd, 1, 0xff);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4153) else if ((scsicmd[1] & 1) == 0) /* is EVPD clear? */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4154) ata_scsi_rbuf_fill(&args, ata_scsiop_inq_std);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4155) else switch (scsicmd[2]) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4156) case 0x00:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4157) ata_scsi_rbuf_fill(&args, ata_scsiop_inq_00);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4158) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4159) case 0x80:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4160) ata_scsi_rbuf_fill(&args, ata_scsiop_inq_80);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4161) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4162) case 0x83:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4163) ata_scsi_rbuf_fill(&args, ata_scsiop_inq_83);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4164) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4165) case 0x89:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4166) ata_scsi_rbuf_fill(&args, ata_scsiop_inq_89);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4167) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4168) case 0xb0:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4169) ata_scsi_rbuf_fill(&args, ata_scsiop_inq_b0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4170) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4171) case 0xb1:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4172) ata_scsi_rbuf_fill(&args, ata_scsiop_inq_b1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4173) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4174) case 0xb2:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4175) ata_scsi_rbuf_fill(&args, ata_scsiop_inq_b2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4176) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4177) case 0xb6:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4178) if (dev->flags & ATA_DFLAG_ZAC) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4179) ata_scsi_rbuf_fill(&args, ata_scsiop_inq_b6);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4180) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4181) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4182) fallthrough;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4183) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4184) ata_scsi_set_invalid_field(dev, cmd, 2, 0xff);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4185) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4186) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4187) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4188)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4189) case MODE_SENSE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4190) case MODE_SENSE_10:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4191) ata_scsi_rbuf_fill(&args, ata_scsiop_mode_sense);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4192) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4193)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4194) case READ_CAPACITY:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4195) ata_scsi_rbuf_fill(&args, ata_scsiop_read_cap);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4196) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4197)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4198) case SERVICE_ACTION_IN_16:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4199) if ((scsicmd[1] & 0x1f) == SAI_READ_CAPACITY_16)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4200) ata_scsi_rbuf_fill(&args, ata_scsiop_read_cap);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4201) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4202) ata_scsi_set_invalid_field(dev, cmd, 1, 0xff);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4203) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4204)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4205) case REPORT_LUNS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4206) ata_scsi_rbuf_fill(&args, ata_scsiop_report_luns);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4207) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4208)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4209) case REQUEST_SENSE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4210) ata_scsi_set_sense(dev, cmd, 0, 0, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4211) cmd->result = (DRIVER_SENSE << 24);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4212) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4213)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4214) /* if we reach this, then writeback caching is disabled,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4215) * turning this into a no-op.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4216) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4217) case SYNCHRONIZE_CACHE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4218) fallthrough;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4219)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4220) /* no-op's, complete with success */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4221) case REZERO_UNIT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4222) case SEEK_6:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4223) case SEEK_10:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4224) case TEST_UNIT_READY:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4225) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4226)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4227) case SEND_DIAGNOSTIC:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4228) tmp8 = scsicmd[1] & ~(1 << 3);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4229) if (tmp8 != 0x4 || scsicmd[3] || scsicmd[4])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4230) ata_scsi_set_invalid_field(dev, cmd, 1, 0xff);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4231) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4232)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4233) case MAINTENANCE_IN:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4234) if (scsicmd[1] == MI_REPORT_SUPPORTED_OPERATION_CODES)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4235) ata_scsi_rbuf_fill(&args, ata_scsiop_maint_in);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4236) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4237) ata_scsi_set_invalid_field(dev, cmd, 1, 0xff);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4238) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4239)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4240) /* all other commands */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4241) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4242) ata_scsi_set_sense(dev, cmd, ILLEGAL_REQUEST, 0x20, 0x0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4243) /* "Invalid command operation code" */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4244) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4245) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4246)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4247) cmd->scsi_done(cmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4248) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4249)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4250) int ata_scsi_add_hosts(struct ata_host *host, struct scsi_host_template *sht)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4251) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4252) int i, rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4253)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4254) for (i = 0; i < host->n_ports; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4255) struct ata_port *ap = host->ports[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4256) struct Scsi_Host *shost;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4257)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4258) rc = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4259) shost = scsi_host_alloc(sht, sizeof(struct ata_port *));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4260) if (!shost)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4261) goto err_alloc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4262)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4263) shost->eh_noresume = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4264) *(struct ata_port **)&shost->hostdata[0] = ap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4265) ap->scsi_host = shost;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4266)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4267) shost->transportt = ata_scsi_transport_template;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4268) shost->unique_id = ap->print_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4269) shost->max_id = 16;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4270) shost->max_lun = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4271) shost->max_channel = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4272) shost->max_cmd_len = 32;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4273)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4274) /* Schedule policy is determined by ->qc_defer()
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4275) * callback and it needs to see every deferred qc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4276) * Set host_blocked to 1 to prevent SCSI midlayer from
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4277) * automatically deferring requests.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4278) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4279) shost->max_host_blocked = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4280)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4281) rc = scsi_add_host_with_dma(shost, &ap->tdev, ap->host->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4282) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4283) goto err_alloc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4284) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4285)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4286) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4287)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4288) err_alloc:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4289) while (--i >= 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4290) struct Scsi_Host *shost = host->ports[i]->scsi_host;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4291)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4292) /* scsi_host_put() is in ata_devres_release() */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4293) scsi_remove_host(shost);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4294) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4295) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4296) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4297)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4298) #ifdef CONFIG_OF
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4299) static void ata_scsi_assign_ofnode(struct ata_device *dev, struct ata_port *ap)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4300) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4301) struct scsi_device *sdev = dev->sdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4302) struct device *d = ap->host->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4303) struct device_node *np = d->of_node;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4304) struct device_node *child;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4305)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4306) for_each_available_child_of_node(np, child) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4307) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4308) u32 val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4309)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4310) ret = of_property_read_u32(child, "reg", &val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4311) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4312) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4313) if (val == dev->devno) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4314) dev_dbg(d, "found matching device node\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4315) sdev->sdev_gendev.of_node = child;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4316) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4317) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4318) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4319) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4320) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4321) static void ata_scsi_assign_ofnode(struct ata_device *dev, struct ata_port *ap)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4322) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4323) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4324) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4325)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4326) void ata_scsi_scan_host(struct ata_port *ap, int sync)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4327) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4328) int tries = 5;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4329) struct ata_device *last_failed_dev = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4330) struct ata_link *link;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4331) struct ata_device *dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4332)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4333) repeat:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4334) ata_for_each_link(link, ap, EDGE) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4335) ata_for_each_dev(dev, link, ENABLED) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4336) struct scsi_device *sdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4337) int channel = 0, id = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4338)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4339) if (dev->sdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4340) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4341)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4342) if (ata_is_host_link(link))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4343) id = dev->devno;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4344) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4345) channel = link->pmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4346)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4347) sdev = __scsi_add_device(ap->scsi_host, channel, id, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4348) NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4349) if (!IS_ERR(sdev)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4350) dev->sdev = sdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4351) ata_scsi_assign_ofnode(dev, ap);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4352) scsi_device_put(sdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4353) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4354) dev->sdev = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4355) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4356) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4357) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4358)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4359) /* If we scanned while EH was in progress or allocation
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4360) * failure occurred, scan would have failed silently. Check
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4361) * whether all devices are attached.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4362) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4363) ata_for_each_link(link, ap, EDGE) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4364) ata_for_each_dev(dev, link, ENABLED) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4365) if (!dev->sdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4366) goto exit_loop;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4367) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4368) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4369) exit_loop:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4370) if (!link)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4371) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4372)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4373) /* we're missing some SCSI devices */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4374) if (sync) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4375) /* If caller requested synchrnous scan && we've made
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4376) * any progress, sleep briefly and repeat.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4377) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4378) if (dev != last_failed_dev) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4379) msleep(100);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4380) last_failed_dev = dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4381) goto repeat;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4382) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4383)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4384) /* We might be failing to detect boot device, give it
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4385) * a few more chances.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4386) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4387) if (--tries) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4388) msleep(100);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4389) goto repeat;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4390) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4391)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4392) ata_port_err(ap,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4393) "WARNING: synchronous SCSI scan failed without making any progress, switching to async\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4394) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4395)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4396) queue_delayed_work(system_long_wq, &ap->hotplug_task,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4397) round_jiffies_relative(HZ));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4398) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4399)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4400) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4401) * ata_scsi_offline_dev - offline attached SCSI device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4402) * @dev: ATA device to offline attached SCSI device for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4403) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4404) * This function is called from ata_eh_hotplug() and responsible
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4405) * for taking the SCSI device attached to @dev offline. This
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4406) * function is called with host lock which protects dev->sdev
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4407) * against clearing.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4408) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4409) * LOCKING:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4410) * spin_lock_irqsave(host lock)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4411) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4412) * RETURNS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4413) * 1 if attached SCSI device exists, 0 otherwise.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4414) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4415) int ata_scsi_offline_dev(struct ata_device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4416) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4417) if (dev->sdev) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4418) scsi_device_set_state(dev->sdev, SDEV_OFFLINE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4419) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4420) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4421) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4422) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4423)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4424) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4425) * ata_scsi_remove_dev - remove attached SCSI device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4426) * @dev: ATA device to remove attached SCSI device for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4427) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4428) * This function is called from ata_eh_scsi_hotplug() and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4429) * responsible for removing the SCSI device attached to @dev.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4430) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4431) * LOCKING:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4432) * Kernel thread context (may sleep).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4433) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4434) static void ata_scsi_remove_dev(struct ata_device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4435) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4436) struct ata_port *ap = dev->link->ap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4437) struct scsi_device *sdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4438) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4439)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4440) /* Alas, we need to grab scan_mutex to ensure SCSI device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4441) * state doesn't change underneath us and thus
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4442) * scsi_device_get() always succeeds. The mutex locking can
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4443) * be removed if there is __scsi_device_get() interface which
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4444) * increments reference counts regardless of device state.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4445) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4446) mutex_lock(&ap->scsi_host->scan_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4447) spin_lock_irqsave(ap->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4448)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4449) /* clearing dev->sdev is protected by host lock */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4450) sdev = dev->sdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4451) dev->sdev = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4452)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4453) if (sdev) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4454) /* If user initiated unplug races with us, sdev can go
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4455) * away underneath us after the host lock and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4456) * scan_mutex are released. Hold onto it.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4457) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4458) if (scsi_device_get(sdev) == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4459) /* The following ensures the attached sdev is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4460) * offline on return from ata_scsi_offline_dev()
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4461) * regardless it wins or loses the race
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4462) * against this function.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4463) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4464) scsi_device_set_state(sdev, SDEV_OFFLINE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4465) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4466) WARN_ON(1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4467) sdev = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4468) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4469) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4470)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4471) spin_unlock_irqrestore(ap->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4472) mutex_unlock(&ap->scsi_host->scan_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4473)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4474) if (sdev) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4475) ata_dev_info(dev, "detaching (SCSI %s)\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4476) dev_name(&sdev->sdev_gendev));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4477)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4478) scsi_remove_device(sdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4479) scsi_device_put(sdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4480) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4481) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4482)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4483) static void ata_scsi_handle_link_detach(struct ata_link *link)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4484) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4485) struct ata_port *ap = link->ap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4486) struct ata_device *dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4487)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4488) ata_for_each_dev(dev, link, ALL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4489) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4490)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4491) if (!(dev->flags & ATA_DFLAG_DETACHED))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4492) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4493)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4494) spin_lock_irqsave(ap->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4495) dev->flags &= ~ATA_DFLAG_DETACHED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4496) spin_unlock_irqrestore(ap->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4497)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4498) if (zpodd_dev_enabled(dev))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4499) zpodd_exit(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4500)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4501) ata_scsi_remove_dev(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4502) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4503) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4504)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4505) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4506) * ata_scsi_media_change_notify - send media change event
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4507) * @dev: Pointer to the disk device with media change event
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4508) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4509) * Tell the block layer to send a media change notification
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4510) * event.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4511) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4512) * LOCKING:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4513) * spin_lock_irqsave(host lock)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4514) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4515) void ata_scsi_media_change_notify(struct ata_device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4516) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4517) if (dev->sdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4518) sdev_evt_send_simple(dev->sdev, SDEV_EVT_MEDIA_CHANGE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4519) GFP_ATOMIC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4520) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4521)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4522) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4523) * ata_scsi_hotplug - SCSI part of hotplug
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4524) * @work: Pointer to ATA port to perform SCSI hotplug on
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4525) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4526) * Perform SCSI part of hotplug. It's executed from a separate
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4527) * workqueue after EH completes. This is necessary because SCSI
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4528) * hot plugging requires working EH and hot unplugging is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4529) * synchronized with hot plugging with a mutex.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4530) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4531) * LOCKING:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4532) * Kernel thread context (may sleep).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4533) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4534) void ata_scsi_hotplug(struct work_struct *work)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4535) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4536) struct ata_port *ap =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4537) container_of(work, struct ata_port, hotplug_task.work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4538) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4539)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4540) if (ap->pflags & ATA_PFLAG_UNLOADING) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4541) DPRINTK("ENTER/EXIT - unloading\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4542) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4543) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4544)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4545) DPRINTK("ENTER\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4546) mutex_lock(&ap->scsi_scan_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4547)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4548) /* Unplug detached devices. We cannot use link iterator here
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4549) * because PMP links have to be scanned even if PMP is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4550) * currently not attached. Iterate manually.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4551) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4552) ata_scsi_handle_link_detach(&ap->link);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4553) if (ap->pmp_link)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4554) for (i = 0; i < SATA_PMP_MAX_PORTS; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4555) ata_scsi_handle_link_detach(&ap->pmp_link[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4556)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4557) /* scan for new ones */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4558) ata_scsi_scan_host(ap, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4559)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4560) mutex_unlock(&ap->scsi_scan_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4561) DPRINTK("EXIT\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4562) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4563)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4564) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4565) * ata_scsi_user_scan - indication for user-initiated bus scan
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4566) * @shost: SCSI host to scan
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4567) * @channel: Channel to scan
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4568) * @id: ID to scan
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4569) * @lun: LUN to scan
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4570) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4571) * This function is called when user explicitly requests bus
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4572) * scan. Set probe pending flag and invoke EH.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4573) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4574) * LOCKING:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4575) * SCSI layer (we don't care)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4576) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4577) * RETURNS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4578) * Zero.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4579) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4580) int ata_scsi_user_scan(struct Scsi_Host *shost, unsigned int channel,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4581) unsigned int id, u64 lun)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4582) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4583) struct ata_port *ap = ata_shost_to_port(shost);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4584) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4585) int devno, rc = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4586)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4587) if (!ap->ops->error_handler)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4588) return -EOPNOTSUPP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4589)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4590) if (lun != SCAN_WILD_CARD && lun)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4591) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4592)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4593) if (!sata_pmp_attached(ap)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4594) if (channel != SCAN_WILD_CARD && channel)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4595) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4596) devno = id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4597) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4598) if (id != SCAN_WILD_CARD && id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4599) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4600) devno = channel;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4601) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4602)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4603) spin_lock_irqsave(ap->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4604)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4605) if (devno == SCAN_WILD_CARD) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4606) struct ata_link *link;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4607)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4608) ata_for_each_link(link, ap, EDGE) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4609) struct ata_eh_info *ehi = &link->eh_info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4610) ehi->probe_mask |= ATA_ALL_DEVICES;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4611) ehi->action |= ATA_EH_RESET;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4612) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4613) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4614) struct ata_device *dev = ata_find_dev(ap, devno);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4615)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4616) if (dev) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4617) struct ata_eh_info *ehi = &dev->link->eh_info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4618) ehi->probe_mask |= 1 << dev->devno;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4619) ehi->action |= ATA_EH_RESET;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4620) } else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4621) rc = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4622) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4623)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4624) if (rc == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4625) ata_port_schedule_eh(ap);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4626) spin_unlock_irqrestore(ap->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4627) ata_port_wait_eh(ap);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4628) } else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4629) spin_unlock_irqrestore(ap->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4630)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4631) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4632) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4633)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4634) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4635) * ata_scsi_dev_rescan - initiate scsi_rescan_device()
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4636) * @work: Pointer to ATA port to perform scsi_rescan_device()
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4637) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4638) * After ATA pass thru (SAT) commands are executed successfully,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4639) * libata need to propagate the changes to SCSI layer.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4640) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4641) * LOCKING:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4642) * Kernel thread context (may sleep).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4643) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4644) void ata_scsi_dev_rescan(struct work_struct *work)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4645) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4646) struct ata_port *ap =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4647) container_of(work, struct ata_port, scsi_rescan_task);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4648) struct ata_link *link;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4649) struct ata_device *dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4650) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4651)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4652) mutex_lock(&ap->scsi_scan_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4653) spin_lock_irqsave(ap->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4654)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4655) ata_for_each_link(link, ap, EDGE) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4656) ata_for_each_dev(dev, link, ENABLED) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4657) struct scsi_device *sdev = dev->sdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4658)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4659) if (!sdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4660) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4661) if (scsi_device_get(sdev))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4662) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4663)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4664) spin_unlock_irqrestore(ap->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4665) scsi_rescan_device(&(sdev->sdev_gendev));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4666) scsi_device_put(sdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4667) spin_lock_irqsave(ap->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4668) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4669) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4670)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4671) spin_unlock_irqrestore(ap->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4672) mutex_unlock(&ap->scsi_scan_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4673) }
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
3 Commits
0 Branches
0 Tags