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Diffstat (limited to 'drivers/scsi/megaraid/megaraid_sas_fusion.c')
-rw-r--r--drivers/scsi/megaraid/megaraid_sas_fusion.c81
1 files changed, 14 insertions, 67 deletions
diff --git a/drivers/scsi/megaraid/megaraid_sas_fusion.c b/drivers/scsi/megaraid/megaraid_sas_fusion.c
index b2ad96564484..319f241da4b6 100644
--- a/drivers/scsi/megaraid/megaraid_sas_fusion.c
+++ b/drivers/scsi/megaraid/megaraid_sas_fusion.c
@@ -176,7 +176,7 @@ static inline bool megasas_check_same_4gb_region
* megasas_enable_intr_fusion - Enables interrupts
* @regs: MFI register set
*/
-void
+static void
megasas_enable_intr_fusion(struct megasas_instance *instance)
{
struct megasas_register_set __iomem *regs;
@@ -198,7 +198,7 @@ megasas_enable_intr_fusion(struct megasas_instance *instance)
* megasas_disable_intr_fusion - Disables interrupt
* @regs: MFI register set
*/
-void
+static void
megasas_disable_intr_fusion(struct megasas_instance *instance)
{
u32 mask = 0xFFFFFFFF;
@@ -2070,7 +2070,6 @@ static bool
megasas_is_prp_possible(struct megasas_instance *instance,
struct scsi_cmnd *scmd, int sge_count)
{
- int i;
u32 data_length = 0;
struct scatterlist *sg_scmd;
bool build_prp = false;
@@ -2099,63 +2098,6 @@ megasas_is_prp_possible(struct megasas_instance *instance,
build_prp = true;
}
-/*
- * Below code detects gaps/holes in IO data buffers.
- * What does holes/gaps mean?
- * Any SGE except first one in a SGL starts at non NVME page size
- * aligned address OR Any SGE except last one in a SGL ends at
- * non NVME page size boundary.
- *
- * Driver has already informed block layer by setting boundary rules for
- * bio merging done at NVME page size boundary calling kernel API
- * blk_queue_virt_boundary inside slave_config.
- * Still there is possibility of IO coming with holes to driver because of
- * IO merging done by IO scheduler.
- *
- * With SCSI BLK MQ enabled, there will be no IO with holes as there is no
- * IO scheduling so no IO merging.
- *
- * With SCSI BLK MQ disabled, IO scheduler may attempt to merge IOs and
- * then sending IOs with holes.
- *
- * Though driver can request block layer to disable IO merging by calling-
- * blk_queue_flag_set(QUEUE_FLAG_NOMERGES, sdev->request_queue) but
- * user may tune sysfs parameter- nomerges again to 0 or 1.
- *
- * If in future IO scheduling is enabled with SCSI BLK MQ,
- * this algorithm to detect holes will be required in driver
- * for SCSI BLK MQ enabled case as well.
- *
- *
- */
- scsi_for_each_sg(scmd, sg_scmd, sge_count, i) {
- if ((i != 0) && (i != (sge_count - 1))) {
- if (mega_mod64(sg_dma_len(sg_scmd), mr_nvme_pg_size) ||
- mega_mod64(sg_dma_address(sg_scmd),
- mr_nvme_pg_size)) {
- build_prp = false;
- break;
- }
- }
-
- if ((sge_count > 1) && (i == 0)) {
- if ((mega_mod64((sg_dma_address(sg_scmd) +
- sg_dma_len(sg_scmd)),
- mr_nvme_pg_size))) {
- build_prp = false;
- break;
- }
- }
-
- if ((sge_count > 1) && (i == (sge_count - 1))) {
- if (mega_mod64(sg_dma_address(sg_scmd),
- mr_nvme_pg_size)) {
- build_prp = false;
- break;
- }
- }
- }
-
return build_prp;
}
@@ -4230,7 +4172,7 @@ void megasas_reset_reply_desc(struct megasas_instance *instance)
* megasas_refire_mgmt_cmd : Re-fire management commands
* @instance: Controller's soft instance
*/
-void megasas_refire_mgmt_cmd(struct megasas_instance *instance,
+static void megasas_refire_mgmt_cmd(struct megasas_instance *instance,
bool return_ioctl)
{
int j;
@@ -4238,8 +4180,9 @@ void megasas_refire_mgmt_cmd(struct megasas_instance *instance,
struct fusion_context *fusion;
struct megasas_cmd *cmd_mfi;
union MEGASAS_REQUEST_DESCRIPTOR_UNION *req_desc;
+ struct MPI2_RAID_SCSI_IO_REQUEST *scsi_io_req;
u16 smid;
- bool refire_cmd = 0;
+ bool refire_cmd = false;
u8 result;
u32 opcode = 0;
@@ -4305,6 +4248,11 @@ void megasas_refire_mgmt_cmd(struct megasas_instance *instance,
result = COMPLETE_CMD;
}
+ scsi_io_req = (struct MPI2_RAID_SCSI_IO_REQUEST *)
+ cmd_fusion->io_request;
+ if (scsi_io_req->Function == MPI2_FUNCTION_SCSI_TASK_MGMT)
+ result = RETURN_CMD;
+
switch (result) {
case REFIRE_CMD:
megasas_fire_cmd_fusion(instance, req_desc);
@@ -4533,7 +4481,6 @@ megasas_issue_tm(struct megasas_instance *instance, u16 device_handle,
if (!timeleft) {
dev_err(&instance->pdev->dev,
"task mgmt type 0x%x timed out\n", type);
- cmd_mfi->flags |= DRV_DCMD_SKIP_REFIRE;
mutex_unlock(&instance->reset_mutex);
rc = megasas_reset_fusion(instance->host, MFI_IO_TIMEOUT_OCR);
mutex_lock(&instance->reset_mutex);
@@ -4713,12 +4660,12 @@ int megasas_task_abort_fusion(struct scsi_cmnd *scmd)
"attempting task abort! scmd(0x%p) tm_dev_handle 0x%x\n",
scmd, devhandle);
- mr_device_priv_data->tm_busy = 1;
+ mr_device_priv_data->tm_busy = true;
ret = megasas_issue_tm(instance, devhandle,
scmd->device->channel, scmd->device->id, smid,
MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK,
mr_device_priv_data);
- mr_device_priv_data->tm_busy = 0;
+ mr_device_priv_data->tm_busy = false;
mutex_unlock(&instance->reset_mutex);
scmd_printk(KERN_INFO, scmd, "task abort %s!! scmd(0x%p)\n",
@@ -4783,12 +4730,12 @@ int megasas_reset_target_fusion(struct scsi_cmnd *scmd)
sdev_printk(KERN_INFO, scmd->device,
"attempting target reset! scmd(0x%p) tm_dev_handle: 0x%x\n",
scmd, devhandle);
- mr_device_priv_data->tm_busy = 1;
+ mr_device_priv_data->tm_busy = true;
ret = megasas_issue_tm(instance, devhandle,
scmd->device->channel, scmd->device->id, 0,
MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET,
mr_device_priv_data);
- mr_device_priv_data->tm_busy = 0;
+ mr_device_priv_data->tm_busy = false;
mutex_unlock(&instance->reset_mutex);
scmd_printk(KERN_NOTICE, scmd, "target reset %s!!\n",
(ret == SUCCESS) ? "SUCCESS" : "FAILED");