^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) * VMware PVSCSI header file
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * Copyright (C) 2008-2014, VMware, Inc. All Rights Reserved.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * This program is free software; you can redistribute it and/or modify it
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * under the terms of the GNU General Public License as published by the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * Free Software Foundation; version 2 of the License and no later version.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) * This program is distributed in the hope that it will be useful, but
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) * WITHOUT ANY WARRANTY; without even the implied warranty of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) * NON INFRINGEMENT. See the GNU General Public License for more
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) * details.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) * You should have received a copy of the GNU General Public License
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) * along with this program; if not, write to the Free Software
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) * Maintained by: Jim Gill <jgill@vmware.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #ifndef _VMW_PVSCSI_H_
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #define _VMW_PVSCSI_H_
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #include <linux/types.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) #define PVSCSI_DRIVER_VERSION_STRING "1.0.7.0-k"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) #define PVSCSI_MAX_NUM_SG_ENTRIES_PER_SEGMENT 128
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) #define MASK(n) ((1 << (n)) - 1) /* make an n-bit mask */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) #define PCI_DEVICE_ID_VMWARE_PVSCSI 0x07C0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) * host adapter status/error codes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) enum HostBusAdapterStatus {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) BTSTAT_SUCCESS = 0x00, /* CCB complete normally with no errors */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) BTSTAT_LINKED_COMMAND_COMPLETED = 0x0a,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) BTSTAT_LINKED_COMMAND_COMPLETED_WITH_FLAG = 0x0b,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) BTSTAT_DATA_UNDERRUN = 0x0c,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) BTSTAT_SELTIMEO = 0x11, /* SCSI selection timeout */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) BTSTAT_DATARUN = 0x12, /* data overrun/underrun */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) BTSTAT_BUSFREE = 0x13, /* unexpected bus free */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) BTSTAT_INVPHASE = 0x14, /* invalid bus phase or sequence
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) * requested by target */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) BTSTAT_LUNMISMATCH = 0x17, /* linked CCB has different LUN from
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) * first CCB */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) BTSTAT_INVPARAM = 0x1a, /* invalid parameter in CCB or segment
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) * list */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) BTSTAT_SENSFAILED = 0x1b, /* auto request sense failed */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) BTSTAT_TAGREJECT = 0x1c, /* SCSI II tagged queueing message
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) * rejected by target */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) BTSTAT_BADMSG = 0x1d, /* unsupported message received by the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) * host adapter */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) BTSTAT_HAHARDWARE = 0x20, /* host adapter hardware failed */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) BTSTAT_NORESPONSE = 0x21, /* target did not respond to SCSI ATN,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) * sent a SCSI RST */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) BTSTAT_SENTRST = 0x22, /* host adapter asserted a SCSI RST */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) BTSTAT_RECVRST = 0x23, /* other SCSI devices asserted a SCSI
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) * RST */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) BTSTAT_DISCONNECT = 0x24, /* target device reconnected improperly
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) * (w/o tag) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) BTSTAT_BUSRESET = 0x25, /* host adapter issued BUS device reset */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) BTSTAT_ABORTQUEUE = 0x26, /* abort queue generated */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) BTSTAT_HASOFTWARE = 0x27, /* host adapter software error */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) BTSTAT_HATIMEOUT = 0x30, /* host adapter hardware timeout error */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) BTSTAT_SCSIPARITY = 0x34, /* SCSI parity error detected */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) * SCSI device status values.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) enum ScsiDeviceStatus {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) SDSTAT_GOOD = 0x00, /* No errors. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) SDSTAT_CHECK = 0x02, /* Check condition. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) * Register offsets.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) * These registers are accessible both via i/o space and mm i/o.
^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) enum PVSCSIRegOffset {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) PVSCSI_REG_OFFSET_COMMAND = 0x0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) PVSCSI_REG_OFFSET_COMMAND_DATA = 0x4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) PVSCSI_REG_OFFSET_COMMAND_STATUS = 0x8,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) PVSCSI_REG_OFFSET_LAST_STS_0 = 0x100,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) PVSCSI_REG_OFFSET_LAST_STS_1 = 0x104,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) PVSCSI_REG_OFFSET_LAST_STS_2 = 0x108,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) PVSCSI_REG_OFFSET_LAST_STS_3 = 0x10c,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) PVSCSI_REG_OFFSET_INTR_STATUS = 0x100c,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) PVSCSI_REG_OFFSET_INTR_MASK = 0x2010,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) PVSCSI_REG_OFFSET_KICK_NON_RW_IO = 0x3014,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) PVSCSI_REG_OFFSET_DEBUG = 0x3018,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) PVSCSI_REG_OFFSET_KICK_RW_IO = 0x4018,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) * Virtual h/w commands.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) enum PVSCSICommands {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) PVSCSI_CMD_FIRST = 0, /* has to be first */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) PVSCSI_CMD_ADAPTER_RESET = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) PVSCSI_CMD_ISSUE_SCSI = 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) PVSCSI_CMD_SETUP_RINGS = 3,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) PVSCSI_CMD_RESET_BUS = 4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) PVSCSI_CMD_RESET_DEVICE = 5,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) PVSCSI_CMD_ABORT_CMD = 6,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) PVSCSI_CMD_CONFIG = 7,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) PVSCSI_CMD_SETUP_MSG_RING = 8,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) PVSCSI_CMD_DEVICE_UNPLUG = 9,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) PVSCSI_CMD_SETUP_REQCALLTHRESHOLD = 10,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) PVSCSI_CMD_LAST = 11 /* has to be last */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) * Command descriptor for PVSCSI_CMD_RESET_DEVICE --
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) struct PVSCSICmdDescResetDevice {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) u32 target;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) u8 lun[8];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) } __packed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) * Command descriptor for PVSCSI_CMD_CONFIG --
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) struct PVSCSICmdDescConfigCmd {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) u64 cmpAddr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) u64 configPageAddress;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) u32 configPageNum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) u32 _pad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) } __packed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) * Command descriptor for PVSCSI_CMD_SETUP_REQCALLTHRESHOLD --
^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) struct PVSCSICmdDescSetupReqCall {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) u32 enable;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) } __packed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) enum PVSCSIConfigPageType {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) PVSCSI_CONFIG_PAGE_CONTROLLER = 0x1958,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) PVSCSI_CONFIG_PAGE_PHY = 0x1959,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) PVSCSI_CONFIG_PAGE_DEVICE = 0x195a,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) enum PVSCSIConfigPageAddressType {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) PVSCSI_CONFIG_CONTROLLER_ADDRESS = 0x2120,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) PVSCSI_CONFIG_BUSTARGET_ADDRESS = 0x2121,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) PVSCSI_CONFIG_PHY_ADDRESS = 0x2122,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) * Command descriptor for PVSCSI_CMD_ABORT_CMD --
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) * - currently does not support specifying the LUN.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) * - _pad should be 0.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) struct PVSCSICmdDescAbortCmd {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) u64 context;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) u32 target;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) u32 _pad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) } __packed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) * Command descriptor for PVSCSI_CMD_SETUP_RINGS --
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) * Notes:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) * - reqRingNumPages and cmpRingNumPages need to be power of two.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) * - reqRingNumPages and cmpRingNumPages need to be different from 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) * - reqRingNumPages and cmpRingNumPages need to be inferior to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) * PVSCSI_SETUP_RINGS_MAX_NUM_PAGES.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) #define PVSCSI_SETUP_RINGS_MAX_NUM_PAGES 32
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) struct PVSCSICmdDescSetupRings {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) u32 reqRingNumPages;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) u32 cmpRingNumPages;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) u64 ringsStatePPN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) u64 reqRingPPNs[PVSCSI_SETUP_RINGS_MAX_NUM_PAGES];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) u64 cmpRingPPNs[PVSCSI_SETUP_RINGS_MAX_NUM_PAGES];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) } __packed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) * Command descriptor for PVSCSI_CMD_SETUP_MSG_RING --
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) * Notes:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) * - this command was not supported in the initial revision of the h/w
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) * interface. Before using it, you need to check that it is supported by
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) * writing PVSCSI_CMD_SETUP_MSG_RING to the 'command' register, then
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) * immediately after read the 'command status' register:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) * * a value of -1 means that the cmd is NOT supported,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) * * a value != -1 means that the cmd IS supported.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) * If it's supported the 'command status' register should return:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) * sizeof(PVSCSICmdDescSetupMsgRing) / sizeof(u32).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) * - this command should be issued _after_ the usual SETUP_RINGS so that the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) * RingsState page is already setup. If not, the command is a nop.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) * - numPages needs to be a power of two,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) * - numPages needs to be different from 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) * - _pad should be zero.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) #define PVSCSI_SETUP_MSG_RING_MAX_NUM_PAGES 16
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) struct PVSCSICmdDescSetupMsgRing {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) u32 numPages;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) u32 _pad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) u64 ringPPNs[PVSCSI_SETUP_MSG_RING_MAX_NUM_PAGES];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) } __packed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) enum PVSCSIMsgType {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) PVSCSI_MSG_DEV_ADDED = 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) PVSCSI_MSG_DEV_REMOVED = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) PVSCSI_MSG_LAST = 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) };
^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) * Msg descriptor.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) * sizeof(struct PVSCSIRingMsgDesc) == 128.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) * - type is of type enum PVSCSIMsgType.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) * - the content of args depend on the type of event being delivered.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) struct PVSCSIRingMsgDesc {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) u32 type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) u32 args[31];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) } __packed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) struct PVSCSIMsgDescDevStatusChanged {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) u32 type; /* PVSCSI_MSG_DEV _ADDED / _REMOVED */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) u32 bus;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) u32 target;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) u8 lun[8];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) u32 pad[27];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) } __packed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) * Rings state.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) * - the fields:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) * . msgProdIdx,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) * . msgConsIdx,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) * . msgNumEntriesLog2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) * .. are only used once the SETUP_MSG_RING cmd has been issued.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) * - '_pad' helps to ensure that the msg related fields are on their own
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) * cache-line.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) struct PVSCSIRingsState {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) u32 reqProdIdx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) u32 reqConsIdx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) u32 reqNumEntriesLog2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) u32 cmpProdIdx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) u32 cmpConsIdx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) u32 cmpNumEntriesLog2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) u32 reqCallThreshold;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) u8 _pad[100];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) u32 msgProdIdx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) u32 msgConsIdx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) u32 msgNumEntriesLog2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) } __packed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) * Request descriptor.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) * sizeof(RingReqDesc) = 128
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) * - context: is a unique identifier of a command. It could normally be any
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) * 64bit value, however we currently store it in the serialNumber variable
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) * of struct SCSI_Command, so we have the following restrictions due to the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) * way this field is handled in the vmkernel storage stack:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) * * this value can't be 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) * * the upper 32bit need to be 0 since serialNumber is as a u32.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) * Currently tracked as PR 292060.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) * - dataLen: contains the total number of bytes that need to be transferred.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) * - dataAddr:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) * * if PVSCSI_FLAG_CMD_WITH_SG_LIST is set: dataAddr is the PA of the first
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) * s/g table segment, each s/g segment is entirely contained on a single
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) * page of physical memory,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) * * if PVSCSI_FLAG_CMD_WITH_SG_LIST is NOT set, then dataAddr is the PA of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) * the buffer used for the DMA transfer,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) * - flags:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) * * PVSCSI_FLAG_CMD_WITH_SG_LIST: see dataAddr above,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) * * PVSCSI_FLAG_CMD_DIR_NONE: no DMA involved,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) * * PVSCSI_FLAG_CMD_DIR_TOHOST: transfer from device to main memory,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) * * PVSCSI_FLAG_CMD_DIR_TODEVICE: transfer from main memory to device,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) * * PVSCSI_FLAG_CMD_OUT_OF_BAND_CDB: reserved to handle CDBs larger than
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) * 16bytes. To be specified.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) * - vcpuHint: vcpuId of the processor that will be most likely waiting for the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) * completion of the i/o. For guest OSes that use lowest priority message
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) * delivery mode (such as windows), we use this "hint" to deliver the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) * completion action to the proper vcpu. For now, we can use the vcpuId of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) * the processor that initiated the i/o as a likely candidate for the vcpu
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) * that will be waiting for the completion..
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) * - bus should be 0: we currently only support bus 0 for now.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) * - unused should be zero'd.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) #define PVSCSI_FLAG_CMD_WITH_SG_LIST (1 << 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) #define PVSCSI_FLAG_CMD_OUT_OF_BAND_CDB (1 << 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) #define PVSCSI_FLAG_CMD_DIR_NONE (1 << 2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) #define PVSCSI_FLAG_CMD_DIR_TOHOST (1 << 3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) #define PVSCSI_FLAG_CMD_DIR_TODEVICE (1 << 4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) struct PVSCSIRingReqDesc {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) u64 context;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) u64 dataAddr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) u64 dataLen;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) u64 senseAddr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) u32 senseLen;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) u32 flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) u8 cdb[16];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) u8 cdbLen;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) u8 lun[8];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) u8 tag;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) u8 bus;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) u8 target;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) u8 vcpuHint;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) u8 unused[59];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) } __packed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) * Scatter-gather list management.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) * As described above, when PVSCSI_FLAG_CMD_WITH_SG_LIST is set in the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) * RingReqDesc.flags, then RingReqDesc.dataAddr is the PA of the first s/g
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) * table segment.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) * - each segment of the s/g table contain a succession of struct
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) * PVSCSISGElement.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) * - each segment is entirely contained on a single physical page of memory.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) * - a "chain" s/g element has the flag PVSCSI_SGE_FLAG_CHAIN_ELEMENT set in
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) * PVSCSISGElement.flags and in this case:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) * * addr is the PA of the next s/g segment,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) * * length is undefined, assumed to be 0.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) struct PVSCSISGElement {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) u64 addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) u32 length;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) u32 flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) } __packed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) * Completion descriptor.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) * sizeof(RingCmpDesc) = 32
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) * - context: identifier of the command. The same thing that was specified
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) * under "context" as part of struct RingReqDesc at initiation time,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) * - dataLen: number of bytes transferred for the actual i/o operation,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) * - senseLen: number of bytes written into the sense buffer,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) * - hostStatus: adapter status,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) * - scsiStatus: device status,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) * - _pad should be zero.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) struct PVSCSIRingCmpDesc {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) u64 context;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) u64 dataLen;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) u32 senseLen;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) u16 hostStatus;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) u16 scsiStatus;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) u32 _pad[2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) } __packed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) struct PVSCSIConfigPageHeader {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) u32 pageNum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) u16 numDwords;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) u16 hostStatus;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) u16 scsiStatus;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) u16 reserved[3];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) } __packed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) struct PVSCSIConfigPageController {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) struct PVSCSIConfigPageHeader header;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) u64 nodeWWN; /* Device name as defined in the SAS spec. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) u16 manufacturer[64];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) u16 serialNumber[64];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) u16 opromVersion[32];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) u16 hwVersion[32];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) u16 firmwareVersion[32];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) u32 numPhys;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) u8 useConsecutivePhyWWNs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) u8 reserved[3];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) } __packed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) * Interrupt status / IRQ bits.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) #define PVSCSI_INTR_CMPL_0 (1 << 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) #define PVSCSI_INTR_CMPL_1 (1 << 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) #define PVSCSI_INTR_CMPL_MASK MASK(2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) #define PVSCSI_INTR_MSG_0 (1 << 2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) #define PVSCSI_INTR_MSG_1 (1 << 3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) #define PVSCSI_INTR_MSG_MASK (MASK(2) << 2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) #define PVSCSI_INTR_ALL_SUPPORTED MASK(4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) * Number of MSI-X vectors supported.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) #define PVSCSI_MAX_INTRS 24
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) * Misc constants for the rings.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) #define PVSCSI_MAX_NUM_PAGES_REQ_RING PVSCSI_SETUP_RINGS_MAX_NUM_PAGES
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) #define PVSCSI_MAX_NUM_PAGES_CMP_RING PVSCSI_SETUP_RINGS_MAX_NUM_PAGES
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) #define PVSCSI_MAX_NUM_PAGES_MSG_RING PVSCSI_SETUP_MSG_RING_MAX_NUM_PAGES
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) #define PVSCSI_MAX_NUM_REQ_ENTRIES_PER_PAGE \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) (PAGE_SIZE / sizeof(struct PVSCSIRingReqDesc))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) #define PVSCSI_MAX_REQ_QUEUE_DEPTH \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) (PVSCSI_MAX_NUM_PAGES_REQ_RING * PVSCSI_MAX_NUM_REQ_ENTRIES_PER_PAGE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) #define PVSCSI_MEM_SPACE_COMMAND_NUM_PAGES 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) #define PVSCSI_MEM_SPACE_INTR_STATUS_NUM_PAGES 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) #define PVSCSI_MEM_SPACE_MISC_NUM_PAGES 2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) #define PVSCSI_MEM_SPACE_KICK_IO_NUM_PAGES 2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) #define PVSCSI_MEM_SPACE_MSIX_NUM_PAGES 2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) enum PVSCSIMemSpace {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) PVSCSI_MEM_SPACE_COMMAND_PAGE = 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) PVSCSI_MEM_SPACE_INTR_STATUS_PAGE = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) PVSCSI_MEM_SPACE_MISC_PAGE = 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) PVSCSI_MEM_SPACE_KICK_IO_PAGE = 4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) PVSCSI_MEM_SPACE_MSIX_TABLE_PAGE = 6,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) PVSCSI_MEM_SPACE_MSIX_PBA_PAGE = 7,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) #define PVSCSI_MEM_SPACE_NUM_PAGES \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) (PVSCSI_MEM_SPACE_COMMAND_NUM_PAGES + \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) PVSCSI_MEM_SPACE_INTR_STATUS_NUM_PAGES + \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) PVSCSI_MEM_SPACE_MISC_NUM_PAGES + \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) PVSCSI_MEM_SPACE_KICK_IO_NUM_PAGES + \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) PVSCSI_MEM_SPACE_MSIX_NUM_PAGES)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) #define PVSCSI_MEM_SPACE_SIZE (PVSCSI_MEM_SPACE_NUM_PAGES * PAGE_SIZE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) #endif /* _VMW_PVSCSI_H_ */
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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