diff options
Diffstat (limited to 'drivers/scsi/cxlflash/main.c')
| -rw-r--r-- | drivers/scsi/cxlflash/main.c | 68 |
1 files changed, 0 insertions, 68 deletions
diff --git a/drivers/scsi/cxlflash/main.c b/drivers/scsi/cxlflash/main.c index 43140ce3163d..19156adb0b69 100644 --- a/drivers/scsi/cxlflash/main.c +++ b/drivers/scsi/cxlflash/main.c @@ -35,33 +35,6 @@ MODULE_AUTHOR("Matthew R. Ochs <mrochs@linux.vnet.ibm.com>"); MODULE_LICENSE("GPL"); /** - * cmd_checkin() - checks in an AFU command - * @cmd: AFU command to checkin. - * - * Safe to pass commands that have already been checked in. Several - * internal tracking fields are reset as part of the checkin. Note - * that these are intentionally reset prior to toggling the free bit - * to avoid clobbering values in the event that the command is checked - * out right away. - */ -static void cmd_checkin(struct afu_cmd *cmd) -{ - cmd->rcb.scp = NULL; - cmd->rcb.timeout = 0; - cmd->sa.ioasc = 0; - cmd->cmd_tmf = false; - cmd->sa.host_use[0] = 0; /* clears both completion and retry bytes */ - - if (unlikely(atomic_inc_return(&cmd->free) != 1)) { - pr_err("%s: Freeing cmd (%d) that is not in use!\n", - __func__, cmd->slot); - return; - } - - pr_devel("%s: released cmd %p index=%d\n", __func__, cmd, cmd->slot); -} - -/** * process_cmd_err() - command error handler * @cmd: AFU command that experienced the error. * @scp: SCSI command associated with the AFU command in error. @@ -560,28 +533,12 @@ static void free_mem(struct cxlflash_cfg *cfg) * * Cleans up all state associated with the command queue, and unmaps * the MMIO space. - * - * - complete() will take care of commands we initiated (they'll be checked - * in as part of the cleanup that occurs after the completion) - * - * - cmd_checkin() will take care of entries that we did not initiate and that - * have not (and will not) complete because they are sitting on a [now stale] - * hardware queue */ static void stop_afu(struct cxlflash_cfg *cfg) { - int i; struct afu *afu = cfg->afu; - struct afu_cmd *cmd; if (likely(afu)) { - for (i = 0; i < CXLFLASH_NUM_CMDS; i++) { - cmd = &afu->cmd[i]; - complete(&cmd->cevent); - if (!atomic_read(&cmd->free)) - cmd_checkin(cmd); - } - if (likely(afu->afu_map)) { cxl_psa_unmap((void __iomem *)afu->afu_map); afu->afu_map = NULL; @@ -794,7 +751,6 @@ static void cxlflash_remove(struct pci_dev *pdev) static int alloc_mem(struct cxlflash_cfg *cfg) { int rc = 0; - int i; struct device *dev = &cfg->dev->dev; /* AFU is ~12k, i.e. only one 64k page or up to four 4k pages */ @@ -808,12 +764,6 @@ static int alloc_mem(struct cxlflash_cfg *cfg) } cfg->afu->parent = cfg; cfg->afu->afu_map = NULL; - - for (i = 0; i < CXLFLASH_NUM_CMDS; i++) { - atomic_set(&cfg->afu->cmd[i].free, 1); - cfg->afu->cmd[i].slot = i; - } - out: return rc; } @@ -1443,13 +1393,6 @@ static void init_pcr(struct cxlflash_cfg *cfg) /* Program the Endian Control for the master context */ writeq_be(SISL_ENDIAN_CTRL, &afu->host_map->endian_ctrl); - - /* Initialize cmd fields that never change */ - for (i = 0; i < CXLFLASH_NUM_CMDS; i++) { - afu->cmd[i].rcb.ctx_id = afu->ctx_hndl; - afu->cmd[i].rcb.msi = SISL_MSI_RRQ_UPDATED; - afu->cmd[i].rcb.rrq = 0x0; - } } /** @@ -1538,19 +1481,8 @@ out: static int start_afu(struct cxlflash_cfg *cfg) { struct afu *afu = cfg->afu; - struct afu_cmd *cmd; - - int i = 0; int rc = 0; - for (i = 0; i < CXLFLASH_NUM_CMDS; i++) { - cmd = &afu->cmd[i]; - - init_completion(&cmd->cevent); - spin_lock_init(&cmd->slock); - cmd->parent = afu; - } - init_pcr(cfg); /* After an AFU reset, RRQ entries are stale, clear them */ |
