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author | Sumit.Saxena@avagotech.com <Sumit.Saxena@avagotech.com> | 2015-04-23 16:30:24 +0530 |
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committer | James Bottomley <JBottomley@Odin.com> | 2015-05-25 08:46:27 -0700 |
commit | 9b828182866d30f4a27f355d5e9bee95cf35ca46 (patch) | |
tree | 7407e86c07aeb700c1c8a09a1d81349fa1da8393 /drivers/scsi/megaraid/megaraid_sas_fusion.c | |
parent | d3557fc8be11d25f316884581f487684f8e7dad3 (diff) | |
download | linux-stable-9b828182866d30f4a27f355d5e9bee95cf35ca46.tar.gz linux-stable-9b828182866d30f4a27f355d5e9bee95cf35ca46.tar.bz2 linux-stable-9b828182866d30f4a27f355d5e9bee95cf35ca46.zip |
megaraid_sas : Add separate function for refiring MFI commands
This patch will add separate function for refiring MFI commands in Fusion
adapters's OCR code.
Signed-off-by: Kashyap Desai <kashyap.desai@avagotech.com>
Signed-off-by: Sumit Saxena <sumit.saxena@avagotech.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
Diffstat (limited to 'drivers/scsi/megaraid/megaraid_sas_fusion.c')
-rw-r--r-- | drivers/scsi/megaraid/megaraid_sas_fusion.c | 80 |
1 files changed, 39 insertions, 41 deletions
diff --git a/drivers/scsi/megaraid/megaraid_sas_fusion.c b/drivers/scsi/megaraid/megaraid_sas_fusion.c index 5a0800d19970..58b96f9e3bce 100644 --- a/drivers/scsi/megaraid/megaraid_sas_fusion.c +++ b/drivers/scsi/megaraid/megaraid_sas_fusion.c @@ -2511,6 +2511,43 @@ void megasas_reset_reply_desc(struct megasas_instance *instance) reply_desc->Words = ULLONG_MAX; } +/* + * megasas_refire_mgmt_cmd : Re-fire management commands + * @instance: Controller's soft instance +*/ +void megasas_refire_mgmt_cmd(struct megasas_instance *instance) +{ + int j; + struct megasas_cmd_fusion *cmd_fusion; + struct fusion_context *fusion; + struct megasas_cmd *cmd_mfi; + union MEGASAS_REQUEST_DESCRIPTOR_UNION *req_desc; + u16 smid; + + fusion = instance->ctrl_context; + + /* Re-fire management commands. + * Do not traverse complet MPT frame pool. Start from max_scsi_cmds. + */ + for (j = instance->max_scsi_cmds ; j < instance->max_fw_cmds; j++) { + cmd_fusion = fusion->cmd_list[j]; + cmd_mfi = instance->cmd_list[cmd_fusion->sync_cmd_idx]; + smid = le16_to_cpu(cmd_mfi->context.smid); + + if (!smid) + continue; + req_desc = megasas_get_request_descriptor + (instance, smid - 1); + if (req_desc && (cmd_mfi->frame->dcmd.opcode != + cpu_to_le32(MR_DCMD_LD_MAP_GET_INFO))) { + instance->instancet->fire_cmd(instance, + req_desc->u.low, req_desc->u.high, + instance->reg_set); + } else + megasas_return_cmd(instance, cmd_mfi); + } +} + /* Check for a second path that is currently UP */ int megasas_check_mpio_paths(struct megasas_instance *instance, struct scsi_cmnd *scmd) @@ -2538,12 +2575,10 @@ out: /* Core fusion reset function */ int megasas_reset_fusion(struct Scsi_Host *shost, int iotimeout) { - int retval = SUCCESS, i, j, retry = 0, convert = 0; + int retval = SUCCESS, i, retry = 0, convert = 0; struct megasas_instance *instance; struct megasas_cmd_fusion *cmd_fusion; struct fusion_context *fusion; - struct megasas_cmd *cmd_mfi; - union MEGASAS_REQUEST_DESCRIPTOR_UNION *req_desc; u32 host_diag, abs_state, status_reg, reset_adapter; u32 io_timeout_in_crash_mode = 0; @@ -2790,44 +2825,7 @@ int megasas_reset_fusion(struct Scsi_Host *shost, int iotimeout) continue; } - /* Re-fire management commands */ - for (j = 0 ; j < instance->max_fw_cmds; j++) { - cmd_fusion = fusion->cmd_list[j]; - if (cmd_fusion->sync_cmd_idx != - (u32)ULONG_MAX) { - cmd_mfi = - instance-> - cmd_list[cmd_fusion->sync_cmd_idx]; - if (cmd_mfi->frame->dcmd.opcode == - cpu_to_le32(MR_DCMD_LD_MAP_GET_INFO)) { - megasas_return_mfi_mpt_pthr(instance, cmd_mfi, cmd_fusion); - } else { - req_desc = - megasas_get_request_descriptor( - instance, - cmd_mfi->context.smid - -1); - if (!req_desc) { - printk(KERN_WARNING - "req_desc NULL" - " for scsi%d\n", - instance->host->host_no); - /* Return leaked MPT - frame */ - megasas_return_cmd_fusion(instance, cmd_fusion); - } else { - instance->instancet-> - fire_cmd(instance, - req_desc-> - u.low, - req_desc-> - u.high, - instance-> - reg_set); - } - } - } - } + megasas_refire_mgmt_cmd(instance); if (megasas_get_ctrl_info(instance)) { dev_info(&instance->pdev->dev, |