Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull more SCSI updates from James Bottomley:
"Mostly small bug fixes and small updates.
The only things of note is a qla2xxx fix for crash on hotplug and
timeout and the addition of a user exposed abstraction layer for
persistent reservation error return handling (which necessitates the
conversion of nvme.c as well as SCSI)"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: qla2xxx: Fix crash when I/O abort times out
nvme: Convert NVMe errors to PR errors
scsi: sd: Convert SCSI errors to PR errors
scsi: core: Rename status_byte to sg_status_byte
block: Add error codes for common PR failures
scsi: sd: sd_zbc: Trace zone append emulation
scsi: libfc: Include the correct header
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index f72fc3b..95c488e 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -2117,11 +2117,34 @@
return nvme_submit_sync_cmd(ns->queue, c, data, 16);
}
+static int nvme_sc_to_pr_err(int nvme_sc)
+{
+ if (nvme_is_path_error(nvme_sc))
+ return PR_STS_PATH_FAILED;
+
+ switch (nvme_sc) {
+ case NVME_SC_SUCCESS:
+ return PR_STS_SUCCESS;
+ case NVME_SC_RESERVATION_CONFLICT:
+ return PR_STS_RESERVATION_CONFLICT;
+ case NVME_SC_ONCS_NOT_SUPPORTED:
+ return -EOPNOTSUPP;
+ case NVME_SC_BAD_ATTRIBUTES:
+ case NVME_SC_INVALID_OPCODE:
+ case NVME_SC_INVALID_FIELD:
+ case NVME_SC_INVALID_NS:
+ return -EINVAL;
+ default:
+ return PR_STS_IOERR;
+ }
+}
+
static int nvme_pr_command(struct block_device *bdev, u32 cdw10,
u64 key, u64 sa_key, u8 op)
{
struct nvme_command c = { };
u8 data[16] = { 0, };
+ int ret;
put_unaligned_le64(key, &data[0]);
put_unaligned_le64(sa_key, &data[8]);
@@ -2131,8 +2154,14 @@
if (IS_ENABLED(CONFIG_NVME_MULTIPATH) &&
bdev->bd_disk->fops == &nvme_ns_head_ops)
- return nvme_send_ns_head_pr_command(bdev, &c, data);
- return nvme_send_ns_pr_command(bdev->bd_disk->private_data, &c, data);
+ ret = nvme_send_ns_head_pr_command(bdev, &c, data);
+ else
+ ret = nvme_send_ns_pr_command(bdev->bd_disk->private_data, &c,
+ data);
+ if (ret < 0)
+ return ret;
+
+ return nvme_sc_to_pr_err(ret);
}
static int nvme_pr_register(struct block_device *bdev, u64 old,
diff --git a/drivers/scsi/libfc/fc_disc.c b/drivers/scsi/libfc/fc_disc.c
index 0f32ded..384f48f 100644
--- a/drivers/scsi/libfc/fc_disc.c
+++ b/drivers/scsi/libfc/fc_disc.c
@@ -24,7 +24,7 @@
#include <linux/slab.h>
#include <linux/err.h>
#include <linux/export.h>
-#include <linux/rculist.h>
+#include <linux/list.h>
#include <asm/unaligned.h>
diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c
index ce4c5d7..8d9ecab 100644
--- a/drivers/scsi/qla2xxx/qla_init.c
+++ b/drivers/scsi/qla2xxx/qla_init.c
@@ -110,6 +110,7 @@
struct qla_qpair *qpair = sp->qpair;
u32 handle;
unsigned long flags;
+ int sp_found = 0, cmdsp_found = 0;
if (sp->cmd_sp)
ql_dbg(ql_dbg_async, sp->vha, 0x507c,
@@ -124,18 +125,21 @@
spin_lock_irqsave(qpair->qp_lock_ptr, flags);
for (handle = 1; handle < qpair->req->num_outstanding_cmds; handle++) {
if (sp->cmd_sp && (qpair->req->outstanding_cmds[handle] ==
- sp->cmd_sp))
+ sp->cmd_sp)) {
qpair->req->outstanding_cmds[handle] = NULL;
+ cmdsp_found = 1;
+ }
/* removing the abort */
if (qpair->req->outstanding_cmds[handle] == sp) {
qpair->req->outstanding_cmds[handle] = NULL;
+ sp_found = 1;
break;
}
}
spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
- if (sp->cmd_sp) {
+ if (cmdsp_found && sp->cmd_sp) {
/*
* This done function should take care of
* original command ref: INIT
@@ -143,8 +147,10 @@
sp->cmd_sp->done(sp->cmd_sp, QLA_OS_TIMER_EXPIRED);
}
- abt->u.abt.comp_status = cpu_to_le16(CS_TIMEOUT);
- sp->done(sp, QLA_OS_TIMER_EXPIRED);
+ if (sp_found) {
+ abt->u.abt.comp_status = cpu_to_le16(CS_TIMEOUT);
+ sp->done(sp, QLA_OS_TIMER_EXPIRED);
+ }
}
static void qla24xx_abort_sp_done(srb_t *sp, int res)
diff --git a/drivers/scsi/scsi_ioctl.c b/drivers/scsi/scsi_ioctl.c
index fdd4756..1126a26 100644
--- a/drivers/scsi/scsi_ioctl.c
+++ b/drivers/scsi/scsi_ioctl.c
@@ -376,7 +376,7 @@
* fill in all the output members
*/
hdr->status = scmd->result & 0xff;
- hdr->masked_status = status_byte(scmd->result);
+ hdr->masked_status = sg_status_byte(scmd->result);
hdr->msg_status = COMMAND_COMPLETE;
hdr->host_status = host_byte(scmd->result);
hdr->driver_status = 0;
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index faa2b55..47dafe6 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -1709,6 +1709,36 @@
}
};
+static int sd_scsi_to_pr_err(struct scsi_sense_hdr *sshdr, int result)
+{
+ switch (host_byte(result)) {
+ case DID_TRANSPORT_MARGINAL:
+ case DID_TRANSPORT_DISRUPTED:
+ case DID_BUS_BUSY:
+ return PR_STS_RETRY_PATH_FAILURE;
+ case DID_NO_CONNECT:
+ return PR_STS_PATH_FAILED;
+ case DID_TRANSPORT_FAILFAST:
+ return PR_STS_PATH_FAST_FAILED;
+ }
+
+ switch (status_byte(result)) {
+ case SAM_STAT_RESERVATION_CONFLICT:
+ return PR_STS_RESERVATION_CONFLICT;
+ case SAM_STAT_CHECK_CONDITION:
+ if (!scsi_sense_valid(sshdr))
+ return PR_STS_IOERR;
+
+ if (sshdr->sense_key == ILLEGAL_REQUEST &&
+ (sshdr->asc == 0x26 || sshdr->asc == 0x24))
+ return -EINVAL;
+
+ fallthrough;
+ default:
+ return PR_STS_IOERR;
+ }
+}
+
static int sd_pr_command(struct block_device *bdev, u8 sa,
u64 key, u64 sa_key, u8 type, u8 flags)
{
@@ -1737,7 +1767,10 @@
scsi_print_sense_hdr(sdev, NULL, &sshdr);
}
- return result;
+ if (result <= 0)
+ return result;
+
+ return sd_scsi_to_pr_err(&sshdr, result);
}
static int sd_pr_register(struct block_device *bdev, u64 old_key, u64 new_key,
diff --git a/drivers/scsi/sd_trace.h b/drivers/scsi/sd_trace.h
new file mode 100644
index 0000000..cba3c0b
--- /dev/null
+++ b/drivers/scsi/sd_trace.h
@@ -0,0 +1,84 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2022 Western Digital Corporation or its affiliates.
+ */
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM sd
+
+#undef TRACE_INCLUDE_FILE
+#define TRACE_INCLUDE_FILE sd_trace
+
+#if !defined(_SD_TRACE_H) || defined(TRACE_HEADER_MULTI_READ)
+#include <scsi/scsi_cmnd.h>
+#include <scsi/scsi_host.h>
+#include <linux/tracepoint.h>
+
+TRACE_EVENT(scsi_prepare_zone_append,
+
+ TP_PROTO(struct scsi_cmnd *cmnd, sector_t lba,
+ unsigned int wp_offset),
+
+ TP_ARGS(cmnd, lba, wp_offset),
+
+ TP_STRUCT__entry(
+ __field( unsigned int, host_no )
+ __field( unsigned int, channel )
+ __field( unsigned int, id )
+ __field( unsigned int, lun )
+ __field( sector_t, lba )
+ __field( unsigned int, wp_offset )
+ ),
+
+ TP_fast_assign(
+ __entry->host_no = cmnd->device->host->host_no;
+ __entry->channel = cmnd->device->channel;
+ __entry->id = cmnd->device->id;
+ __entry->lun = cmnd->device->lun;
+ __entry->lba = lba;
+ __entry->wp_offset = wp_offset;
+ ),
+
+ TP_printk("host_no=%u, channel=%u id=%u lun=%u lba=%llu wp_offset=%u",
+ __entry->host_no, __entry->channel, __entry->id,
+ __entry->lun, __entry->lba, __entry->wp_offset)
+);
+
+TRACE_EVENT(scsi_zone_wp_update,
+
+ TP_PROTO(struct scsi_cmnd *cmnd, sector_t rq_sector,
+ unsigned int wp_offset, unsigned int good_bytes),
+
+ TP_ARGS(cmnd, rq_sector, wp_offset, good_bytes),
+
+ TP_STRUCT__entry(
+ __field( unsigned int, host_no )
+ __field( unsigned int, channel )
+ __field( unsigned int, id )
+ __field( unsigned int, lun )
+ __field( sector_t, rq_sector )
+ __field( unsigned int, wp_offset )
+ __field( unsigned int, good_bytes )
+ ),
+
+ TP_fast_assign(
+ __entry->host_no = cmnd->device->host->host_no;
+ __entry->channel = cmnd->device->channel;
+ __entry->id = cmnd->device->id;
+ __entry->lun = cmnd->device->lun;
+ __entry->rq_sector = rq_sector;
+ __entry->wp_offset = wp_offset;
+ __entry->good_bytes = good_bytes;
+ ),
+
+ TP_printk("host_no=%u, channel=%u id=%u lun=%u rq_sector=%llu" \
+ " wp_offset=%u good_bytes=%u",
+ __entry->host_no, __entry->channel, __entry->id,
+ __entry->lun, __entry->rq_sector, __entry->wp_offset,
+ __entry->good_bytes)
+);
+#endif /* _SD_TRACE_H */
+
+/* This part must be outside protection */
+#undef TRACE_INCLUDE_PATH
+#define TRACE_INCLUDE_PATH ../../drivers/scsi
+#include <trace/define_trace.h>
diff --git a/drivers/scsi/sd_zbc.c b/drivers/scsi/sd_zbc.c
index b163bf9..62abebb 100644
--- a/drivers/scsi/sd_zbc.c
+++ b/drivers/scsi/sd_zbc.c
@@ -20,6 +20,9 @@
#include "sd.h"
+#define CREATE_TRACE_POINTS
+#include "sd_trace.h"
+
/**
* sd_zbc_get_zone_wp_offset - Get zone write pointer offset.
* @zone: Zone for which to return the write pointer offset.
@@ -450,6 +453,7 @@
break;
}
+ trace_scsi_prepare_zone_append(cmd, *lba, wp_offset);
*lba += wp_offset;
}
spin_unlock_irqrestore(&sdkp->zones_wp_offset_lock, flags);
@@ -558,6 +562,8 @@
switch (op) {
case REQ_OP_ZONE_APPEND:
+ trace_scsi_zone_wp_update(cmd, rq->__sector,
+ sdkp->zones_wp_offset[zno], good_bytes);
rq->__sector += sdkp->zones_wp_offset[zno];
fallthrough;
case REQ_OP_WRITE_ZEROES:
diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c
index 12344be..ff9854f 100644
--- a/drivers/scsi/sg.c
+++ b/drivers/scsi/sg.c
@@ -1349,7 +1349,7 @@
struct scsi_sense_hdr sshdr;
srp->header.status = 0xff & result;
- srp->header.masked_status = status_byte(result);
+ srp->header.masked_status = sg_status_byte(result);
srp->header.msg_status = COMMAND_COMPLETE;
srp->header.host_status = host_byte(result);
srp->header.driver_status = driver_byte(result);
diff --git a/include/scsi/scsi.h b/include/scsi/scsi.h
index 3e46859..ec09359 100644
--- a/include/scsi/scsi.h
+++ b/include/scsi/scsi.h
@@ -121,6 +121,7 @@
* msg_byte (unused)
* host_byte = set by low-level driver to indicate status.
*/
+#define status_byte(result) (result & 0xff)
#define host_byte(result) (((result) >> 16) & 0xff)
#define sense_class(sense) (((sense) >> 4) & 0x7)
diff --git a/include/scsi/sg.h b/include/scsi/sg.h
index 068e35d..af31cec 100644
--- a/include/scsi/sg.h
+++ b/include/scsi/sg.h
@@ -159,7 +159,7 @@
#define TASK_ABORTED 0x20
/* Obsolete status_byte() declaration */
-#define status_byte(result) (((result) >> 1) & 0x7f)
+#define sg_status_byte(result) (((result) >> 1) & 0x7f)
typedef struct sg_scsi_id { /* used by SG_GET_SCSI_ID ioctl() */
int host_no; /* as in "scsi<n>" where 'n' is one of 0, 1, 2 etc */
diff --git a/include/uapi/linux/pr.h b/include/uapi/linux/pr.h
index ccc78cb..d812641 100644
--- a/include/uapi/linux/pr.h
+++ b/include/uapi/linux/pr.h
@@ -4,6 +4,23 @@
#include <linux/types.h>
+enum pr_status {
+ PR_STS_SUCCESS = 0x0,
+ /*
+ * The following error codes are based on SCSI, because the interface
+ * was originally created for it and has existing users.
+ */
+ /* Generic device failure. */
+ PR_STS_IOERR = 0x2,
+ PR_STS_RESERVATION_CONFLICT = 0x18,
+ /* Temporary path failure that can be retried. */
+ PR_STS_RETRY_PATH_FAILURE = 0xe0000,
+ /* The request was failed due to a fast failure timer. */
+ PR_STS_PATH_FAST_FAILED = 0xf0000,
+ /* The path cannot be reached and has been marked as failed. */
+ PR_STS_PATH_FAILED = 0x10000,
+};
+
enum pr_type {
PR_WRITE_EXCLUSIVE = 1,
PR_EXCLUSIVE_ACCESS = 2,
