^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * CCW device SENSE ID I/O handling.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright IBM Corp. 2002, 2009
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * Author(s): Cornelia Huck <cornelia.huck@de.ibm.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Martin Schwidefsky <schwidefsky@de.ibm.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/string.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/types.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/errno.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <asm/ccwdev.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <asm/setup.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <asm/cio.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <asm/diag.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include "cio.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include "cio_debug.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #include "device.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #include "io_sch.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #define SENSE_ID_RETRIES 256
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #define SENSE_ID_TIMEOUT (10 * HZ)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #define SENSE_ID_MIN_LEN 4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) #define SENSE_ID_BASIC_LEN 7
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) * diag210_to_senseid - convert diag 0x210 data to sense id information
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) * @senseid: sense id
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) * @diag: diag 0x210 data
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) * Return 0 on success, non-zero otherwise.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) static int diag210_to_senseid(struct senseid *senseid, struct diag210 *diag)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) static struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) int class, type, cu_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) } vm_devices[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) { 0x08, 0x01, 0x3480 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) { 0x08, 0x02, 0x3430 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) { 0x08, 0x10, 0x3420 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) { 0x08, 0x42, 0x3424 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) { 0x08, 0x44, 0x9348 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) { 0x08, 0x81, 0x3490 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) { 0x08, 0x82, 0x3422 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) { 0x10, 0x41, 0x1403 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) { 0x10, 0x42, 0x3211 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) { 0x10, 0x43, 0x3203 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) { 0x10, 0x45, 0x3800 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) { 0x10, 0x47, 0x3262 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) { 0x10, 0x48, 0x3820 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) { 0x10, 0x49, 0x3800 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) { 0x10, 0x4a, 0x4245 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) { 0x10, 0x4b, 0x4248 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) { 0x10, 0x4d, 0x3800 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) { 0x10, 0x4e, 0x3820 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) { 0x10, 0x4f, 0x3820 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) { 0x10, 0x82, 0x2540 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) { 0x10, 0x84, 0x3525 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) { 0x20, 0x81, 0x2501 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) { 0x20, 0x82, 0x2540 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) { 0x20, 0x84, 0x3505 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) { 0x40, 0x01, 0x3278 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) { 0x40, 0x04, 0x3277 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) { 0x40, 0x80, 0x2250 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) { 0x40, 0xc0, 0x5080 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) { 0x80, 0x00, 0x3215 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) /* Special case for osa devices. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) if (diag->vrdcvcla == 0x02 && diag->vrdcvtyp == 0x20) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) senseid->cu_type = 0x3088;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) senseid->cu_model = 0x60;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) senseid->reserved = 0xff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) for (i = 0; i < ARRAY_SIZE(vm_devices); i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) if (diag->vrdcvcla == vm_devices[i].class &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) diag->vrdcvtyp == vm_devices[i].type) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) senseid->cu_type = vm_devices[i].cu_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) senseid->reserved = 0xff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) * diag_get_dev_info - retrieve device information via diag 0x210
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) * @cdev: ccw device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) * Returns zero on success, non-zero otherwise.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) static int diag210_get_dev_info(struct ccw_device *cdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) struct ccw_dev_id *dev_id = &cdev->private->dev_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) struct senseid *senseid = &cdev->private->dma_area->senseid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) struct diag210 diag_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) if (dev_id->ssid != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) memset(&diag_data, 0, sizeof(diag_data));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) diag_data.vrdcdvno = dev_id->devno;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) diag_data.vrdclen = sizeof(diag_data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) rc = diag210(&diag_data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) CIO_TRACE_EVENT(4, "diag210");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) CIO_HEX_EVENT(4, &rc, sizeof(rc));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) CIO_HEX_EVENT(4, &diag_data, sizeof(diag_data));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) if (rc != 0 && rc != 2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) goto err_failed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) if (diag210_to_senseid(senseid, &diag_data))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) goto err_unknown;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) err_unknown:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) CIO_MSG_EVENT(0, "snsid: device 0.%x.%04x: unknown diag210 data\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) dev_id->ssid, dev_id->devno);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) err_failed:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) CIO_MSG_EVENT(0, "snsid: device 0.%x.%04x: diag210 failed (rc=%d)\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) dev_id->ssid, dev_id->devno, rc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) * Initialize SENSE ID data.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) static void snsid_init(struct ccw_device *cdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) cdev->private->flags.esid = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) memset(&cdev->private->dma_area->senseid, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) sizeof(cdev->private->dma_area->senseid));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) cdev->private->dma_area->senseid.cu_type = 0xffff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) * Check for complete SENSE ID data.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) static int snsid_check(struct ccw_device *cdev, void *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) struct cmd_scsw *scsw = &cdev->private->dma_area->irb.scsw.cmd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) int len = sizeof(struct senseid) - scsw->count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) /* Check for incomplete SENSE ID data. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) if (len < SENSE_ID_MIN_LEN)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) goto out_restart;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) if (cdev->private->dma_area->senseid.cu_type == 0xffff)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) goto out_restart;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) /* Check for incompatible SENSE ID data. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) if (cdev->private->dma_area->senseid.reserved != 0xff)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) return -EOPNOTSUPP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) /* Check for extended-identification information. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) if (len > SENSE_ID_BASIC_LEN)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) cdev->private->flags.esid = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) out_restart:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) snsid_init(cdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) return -EAGAIN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) * Process SENSE ID request result.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) static void snsid_callback(struct ccw_device *cdev, void *data, int rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) struct ccw_dev_id *id = &cdev->private->dev_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) struct senseid *senseid = &cdev->private->dma_area->senseid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) int vm = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) if (rc && MACHINE_IS_VM) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) /* Try diag 0x210 fallback on z/VM. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) snsid_init(cdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) if (diag210_get_dev_info(cdev) == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) rc = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) vm = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) CIO_MSG_EVENT(2, "snsid: device 0.%x.%04x: rc=%d %04x/%02x "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) "%04x/%02x%s\n", id->ssid, id->devno, rc,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) senseid->cu_type, senseid->cu_model, senseid->dev_type,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) senseid->dev_model, vm ? " (diag210)" : "");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) ccw_device_sense_id_done(cdev, rc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) * ccw_device_sense_id_start - perform SENSE ID
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) * @cdev: ccw device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) * Execute a SENSE ID channel program on @cdev to update its sense id
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) * information. When finished, call ccw_device_sense_id_done with a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) * return code specifying the result.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) void ccw_device_sense_id_start(struct ccw_device *cdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) struct subchannel *sch = to_subchannel(cdev->dev.parent);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) struct ccw_request *req = &cdev->private->req;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) struct ccw1 *cp = cdev->private->dma_area->iccws;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) CIO_TRACE_EVENT(4, "snsid");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) CIO_HEX_EVENT(4, &cdev->private->dev_id, sizeof(cdev->private->dev_id));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) /* Data setup. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) snsid_init(cdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) /* Channel program setup. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) cp->cmd_code = CCW_CMD_SENSE_ID;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) cp->cda = (u32) (addr_t) &cdev->private->dma_area->senseid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) cp->count = sizeof(struct senseid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) cp->flags = CCW_FLAG_SLI;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) /* Request setup. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) memset(req, 0, sizeof(*req));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) req->cp = cp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) req->timeout = SENSE_ID_TIMEOUT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) req->maxretries = SENSE_ID_RETRIES;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) req->lpm = sch->schib.pmcw.pam & sch->opm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) req->check = snsid_check;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) req->callback = snsid_callback;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) ccw_request_start(cdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) }
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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