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scsi: mpi3mr: Debug ability improvements

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Update driver to include OS type in fault/reset reason code.  MPI request
sent through ioctl now automatically dumped on timeout.

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202403081903.q3Dq54zZ-lkp@intel.com/
Signed-off-by: Ranjan Kumar <ranjan.kumar@broadcom.com>
Signed-off-by: Sathya Prakash <sathya.prakash@broadcom.com>
Link: https://lore.kernel.org/r/20240313100746.128951-6-ranjan.kumar@broadcom.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Ranjan Kumar
2024-03-13 15:37:44 +05:30
committed by Martin K. Petersen
parent e8a5a3c3eb
commit 0a2714b787
3 changed files with 35 additions and 17 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/scsi/mpi3mr/mpi3mr.h
View File

@@ -63,7 +63,7 @@ extern atomic64_t event_counter;
#define MPI3MR_DRIVER_AUTHOR "Broadcom Inc. <mpi3mr-linuxdrv.pdl@broadcom.com>"
#define MPI3MR_DRIVER_DESC "MPI3 Storage Controller Device Driver"
#define MPI3MR_NAME_LENGTH 32
#define MPI3MR_NAME_LENGTH 64
#define IOCNAME "%s: "
#define MPI3MR_DEFAULT_MAX_IO_SIZE (1 * 1024 * 1024)
@@ -294,6 +294,10 @@ enum mpi3mr_reset_reason {
MPI3MR_RESET_FROM_SAS_TRANSPORT_TIMEOUT = 30,
};
#define MPI3MR_RESET_REASON_OSTYPE_LINUX 1
#define MPI3MR_RESET_REASON_OSTYPE_SHIFT 28
#define MPI3MR_RESET_REASON_IOCNUM_SHIFT 20
/* Queue type definitions */
enum queue_type {
MPI3MR_DEFAULT_QUEUE = 0,
@@ -1142,7 +1146,7 @@ struct mpi3mr_ioc {
spinlock_t fwevt_lock;
struct list_head fwevt_list;
char watchdog_work_q_name[20];
char watchdog_work_q_name[50];
struct workqueue_struct *watchdog_work_q;
struct delayed_work watchdog_work;
spinlock_t watchdog_lock;
@@ -1336,7 +1340,7 @@ void mpi3mr_start_watchdog(struct mpi3mr_ioc *mrioc);
void mpi3mr_stop_watchdog(struct mpi3mr_ioc *mrioc);
int mpi3mr_soft_reset_handler(struct mpi3mr_ioc *mrioc,
u32 reset_reason, u8 snapdump);
u16 reset_reason, u8 snapdump);
void mpi3mr_ioc_disable_intr(struct mpi3mr_ioc *mrioc);
void mpi3mr_ioc_enable_intr(struct mpi3mr_ioc *mrioc);

21
drivers/scsi/mpi3mr/mpi3mr_app.c
View File

@@ -1598,26 +1598,33 @@ static long mpi3mr_bsg_process_mpt_cmds(struct bsg_job *job)
rval = -EAGAIN;
if (mrioc->bsg_cmds.state & MPI3MR_CMD_RESET)
goto out_unlock;
dprint_bsg_err(mrioc,
"%s: bsg request timedout after %d seconds\n", __func__,
karg->timeout);
if (mrioc->logging_level & MPI3_DEBUG_BSG_ERROR) {
dprint_dump(mpi_req, MPI3MR_ADMIN_REQ_FRAME_SZ,
if (((mpi_header->function != MPI3_FUNCTION_SCSI_IO) &&
(mpi_header->function != MPI3_FUNCTION_NVME_ENCAPSULATED))
|| (mrioc->logging_level & MPI3_DEBUG_BSG_ERROR)) {
ioc_info(mrioc, "%s: bsg request timedout after %d seconds\n",
__func__, karg->timeout);
if (!(mrioc->logging_level & MPI3_DEBUG_BSG_INFO)) {
dprint_dump(mpi_req, MPI3MR_ADMIN_REQ_FRAME_SZ,
"bsg_mpi3_req");
if (mpi_header->function ==
MPI3_BSG_FUNCTION_MGMT_PASSTHROUGH) {
MPI3_FUNCTION_MGMT_PASSTHROUGH) {
drv_buf_iter = &drv_bufs[0];
dprint_dump(drv_buf_iter->kern_buf,
rmc_size, "mpi3_mgmt_req");
}
}
}
if ((mpi_header->function == MPI3_BSG_FUNCTION_NVME_ENCAPSULATED) ||
(mpi_header->function == MPI3_BSG_FUNCTION_SCSI_IO))
(mpi_header->function == MPI3_BSG_FUNCTION_SCSI_IO)) {
dprint_bsg_err(mrioc, "%s: bsg request timedout after %d seconds,\n"
"issuing target reset to (0x%04x)\n", __func__,
karg->timeout, mpi_header->function_dependent);
mpi3mr_issue_tm(mrioc,
MPI3_SCSITASKMGMT_TASKTYPE_TARGET_RESET,
mpi_header->function_dependent, 0,
MPI3MR_HOSTTAG_BLK_TMS, MPI3MR_RESETTM_TIMEOUT,
&mrioc->host_tm_cmds, &resp_code, NULL);
}
if (!(mrioc->bsg_cmds.state & MPI3MR_CMD_COMPLETE) &&
!(mrioc->bsg_cmds.state & MPI3MR_CMD_RESET))
mpi3mr_soft_reset_handler(mrioc,

21
drivers/scsi/mpi3mr/mpi3mr_fw.c
View File

@@ -11,7 +11,7 @@
#include <linux/io-64-nonatomic-lo-hi.h>
static int
mpi3mr_issue_reset(struct mpi3mr_ioc *mrioc, u16 reset_type, u32 reset_reason);
mpi3mr_issue_reset(struct mpi3mr_ioc *mrioc, u16 reset_type, u16 reset_reason);
static int mpi3mr_setup_admin_qpair(struct mpi3mr_ioc *mrioc);
static void mpi3mr_process_factsdata(struct mpi3mr_ioc *mrioc,
struct mpi3_ioc_facts_data *facts_data);
@@ -1195,7 +1195,7 @@ static inline void mpi3mr_clear_reset_history(struct mpi3mr_ioc *mrioc)
static int mpi3mr_issue_and_process_mur(struct mpi3mr_ioc *mrioc,
u32 reset_reason)
{
u32 ioc_config, timeout, ioc_status;
u32 ioc_config, timeout, ioc_status, scratch_pad0;
int retval = -1;
ioc_info(mrioc, "Issuing Message unit Reset(MUR)\n");
@@ -1204,7 +1204,11 @@ static int mpi3mr_issue_and_process_mur(struct mpi3mr_ioc *mrioc,
return retval;
}
mpi3mr_clear_reset_history(mrioc);
writel(reset_reason, &mrioc->sysif_regs->scratchpad[0]);
scratch_pad0 = ((MPI3MR_RESET_REASON_OSTYPE_LINUX <<
MPI3MR_RESET_REASON_OSTYPE_SHIFT) |
(mrioc->facts.ioc_num <<
MPI3MR_RESET_REASON_IOCNUM_SHIFT) | reset_reason);
writel(scratch_pad0, &mrioc->sysif_regs->scratchpad[0]);
ioc_config = readl(&mrioc->sysif_regs->ioc_configuration);
ioc_config &= ~MPI3_SYSIF_IOC_CONFIG_ENABLE_IOC;
writel(ioc_config, &mrioc->sysif_regs->ioc_configuration);
@@ -1520,11 +1524,11 @@ static inline void mpi3mr_set_diagsave(struct mpi3mr_ioc *mrioc)
* Return: 0 on success, non-zero on failure.
*/
static int mpi3mr_issue_reset(struct mpi3mr_ioc *mrioc, u16 reset_type,
u32 reset_reason)
u16 reset_reason)
{
int retval = -1;
u8 unlock_retry_count = 0;
u32 host_diagnostic, ioc_status, ioc_config;
u32 host_diagnostic, ioc_status, ioc_config, scratch_pad0;
u32 timeout = MPI3MR_RESET_ACK_TIMEOUT * 10;
if ((reset_type != MPI3_SYSIF_HOST_DIAG_RESET_ACTION_SOFT_RESET) &&
@@ -1576,6 +1580,9 @@ static int mpi3mr_issue_reset(struct mpi3mr_ioc *mrioc, u16 reset_type,
unlock_retry_count, host_diagnostic);
} while (!(host_diagnostic & MPI3_SYSIF_HOST_DIAG_DIAG_WRITE_ENABLE));
scratch_pad0 = ((MPI3MR_RESET_REASON_OSTYPE_LINUX <<
MPI3MR_RESET_REASON_OSTYPE_SHIFT) | (mrioc->facts.ioc_num <<
MPI3MR_RESET_REASON_IOCNUM_SHIFT) | reset_reason);
writel(reset_reason, &mrioc->sysif_regs->scratchpad[0]);
writel(host_diagnostic | reset_type,
&mrioc->sysif_regs->host_diagnostic);
@@ -2581,7 +2588,7 @@ static void mpi3mr_watchdog_work(struct work_struct *work)
unsigned long flags;
enum mpi3mr_iocstate ioc_state;
u32 fault, host_diagnostic, ioc_status;
u32 reset_reason = MPI3MR_RESET_FROM_FAULT_WATCH;
u16 reset_reason = MPI3MR_RESET_FROM_FAULT_WATCH;
if (mrioc->reset_in_progress)
return;
@@ -4968,7 +4975,7 @@ void mpi3mr_pel_get_seqnum_complete(struct mpi3mr_ioc *mrioc,
* Return: 0 on success, non-zero on failure.
*/
int mpi3mr_soft_reset_handler(struct mpi3mr_ioc *mrioc,
u32 reset_reason, u8 snapdump)
u16 reset_reason, u8 snapdump)
{
int retval = 0, i;
unsigned long flags;