diff options
Diffstat (limited to 'drivers/scsi')
| -rw-r--r-- | drivers/scsi/mpi3mr/mpi3mr.h | 3 | ||||
| -rw-r--r-- | drivers/scsi/mpi3mr/mpi3mr_fw.c | 12 | ||||
| -rw-r--r-- | drivers/scsi/mpi3mr/mpi3mr_os.c | 1 |
3 files changed, 14 insertions, 2 deletions
diff --git a/drivers/scsi/mpi3mr/mpi3mr.h b/drivers/scsi/mpi3mr/mpi3mr.h index 23de2603e71f..40f238fa80cc 100644 --- a/drivers/scsi/mpi3mr/mpi3mr.h +++ b/drivers/scsi/mpi3mr/mpi3mr.h @@ -902,6 +902,7 @@ struct scmd_priv { * @admin_reply_ephase:Admin reply queue expected phase * @admin_reply_base: Admin reply queue base virtual address * @admin_reply_dma: Admin reply queue base dma address + * @admin_reply_q_in_use: Queue is handled by poll/ISR * @ready_timeout: Controller ready timeout * @intr_info: Interrupt cookie pointer * @intr_info_count: Number of interrupt cookies @@ -1055,6 +1056,7 @@ struct mpi3mr_ioc { u8 admin_reply_ephase; void *admin_reply_base; dma_addr_t admin_reply_dma; + atomic_t admin_reply_q_in_use; u32 ready_timeout; @@ -1390,4 +1392,5 @@ void mpi3mr_add_event_wait_for_device_refresh(struct mpi3mr_ioc *mrioc); void mpi3mr_flush_drv_cmds(struct mpi3mr_ioc *mrioc); void mpi3mr_flush_cmds_for_unrecovered_controller(struct mpi3mr_ioc *mrioc); void mpi3mr_free_enclosure_list(struct mpi3mr_ioc *mrioc); +int mpi3mr_process_admin_reply_q(struct mpi3mr_ioc *mrioc); #endif /*MPI3MR_H_INCLUDED*/ diff --git a/drivers/scsi/mpi3mr/mpi3mr_fw.c b/drivers/scsi/mpi3mr/mpi3mr_fw.c index 758f7ca9e0ee..4254e46a20f1 100644 --- a/drivers/scsi/mpi3mr/mpi3mr_fw.c +++ b/drivers/scsi/mpi3mr/mpi3mr_fw.c @@ -415,7 +415,7 @@ out: le64_to_cpu(scsi_reply->sense_data_buffer_address)); } -static int mpi3mr_process_admin_reply_q(struct mpi3mr_ioc *mrioc) +int mpi3mr_process_admin_reply_q(struct mpi3mr_ioc *mrioc) { u32 exp_phase = mrioc->admin_reply_ephase; u32 admin_reply_ci = mrioc->admin_reply_ci; @@ -423,12 +423,17 @@ static int mpi3mr_process_admin_reply_q(struct mpi3mr_ioc *mrioc) u64 reply_dma = 0; struct mpi3_default_reply_descriptor *reply_desc; + if (!atomic_add_unless(&mrioc->admin_reply_q_in_use, 1, 1)) + return 0; + reply_desc = (struct mpi3_default_reply_descriptor *)mrioc->admin_reply_base + admin_reply_ci; if ((le16_to_cpu(reply_desc->reply_flags) & - MPI3_REPLY_DESCRIPT_FLAGS_PHASE_MASK) != exp_phase) + MPI3_REPLY_DESCRIPT_FLAGS_PHASE_MASK) != exp_phase) { + atomic_dec(&mrioc->admin_reply_q_in_use); return 0; + } do { if (mrioc->unrecoverable) @@ -454,6 +459,7 @@ static int mpi3mr_process_admin_reply_q(struct mpi3mr_ioc *mrioc) writel(admin_reply_ci, &mrioc->sysif_regs->admin_reply_queue_ci); mrioc->admin_reply_ci = admin_reply_ci; mrioc->admin_reply_ephase = exp_phase; + atomic_dec(&mrioc->admin_reply_q_in_use); return num_admin_replies; } @@ -2605,6 +2611,7 @@ static int mpi3mr_setup_admin_qpair(struct mpi3mr_ioc *mrioc) mrioc->admin_reply_ci = 0; mrioc->admin_reply_ephase = 1; mrioc->admin_reply_base = NULL; + atomic_set(&mrioc->admin_reply_q_in_use, 0); if (!mrioc->admin_req_base) { mrioc->admin_req_base = dma_alloc_coherent(&mrioc->pdev->dev, @@ -4155,6 +4162,7 @@ void mpi3mr_memset_buffers(struct mpi3mr_ioc *mrioc) memset(mrioc->admin_req_base, 0, mrioc->admin_req_q_sz); if (mrioc->admin_reply_base) memset(mrioc->admin_reply_base, 0, mrioc->admin_reply_q_sz); + atomic_set(&mrioc->admin_reply_q_in_use, 0); if (mrioc->init_cmds.reply) { memset(mrioc->init_cmds.reply, 0, sizeof(*mrioc->init_cmds.reply)); diff --git a/drivers/scsi/mpi3mr/mpi3mr_os.c b/drivers/scsi/mpi3mr/mpi3mr_os.c index 6eaeba41072c..a794cc8a1c0b 100644 --- a/drivers/scsi/mpi3mr/mpi3mr_os.c +++ b/drivers/scsi/mpi3mr/mpi3mr_os.c @@ -3720,6 +3720,7 @@ int mpi3mr_issue_tm(struct mpi3mr_ioc *mrioc, u8 tm_type, mpi3mr_poll_pend_io_completions(mrioc); mpi3mr_ioc_enable_intr(mrioc); mpi3mr_poll_pend_io_completions(mrioc); + mpi3mr_process_admin_reply_q(mrioc); } switch (tm_type) { case MPI3_SCSITASKMGMT_TASKTYPE_TARGET_RESET: |