[PATCH 16/19] aacraid: Enable ctrl reset for both hba and arc

Raghava Aditya Renukunta
2017-05-07T21:40:25Z

Make sure that IOP and SOFT reset are enabled for both for both
arc and hba1000 controllers.

Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
---
drivers/scsi/aacraid/linit.c | 77 +++++++++++++++++++++++---------------------
1 file changed, 40 insertions(+), 37 deletions(-)

diff --git a/drivers/scsi/aacraid/linit.c b/drivers/scsi/aacraid/linit.c
index 3dea438..d933d2f 100644
--- a/drivers/scsi/aacraid/linit.c
+++ b/drivers/scsi/aacraid/linit.c
@@ -828,6 +828,11 @@ static int aac_eh_reset(struct scsi_cmnd* cmd)
u32 bus, cid;
int ret = FAILED;
int status = 0;
+ __le32 supported_options2 = 0;
+ bool is_mu_reset;
+ bool is_ignore_reset;
+ bool is_doorbell_reset;
+

bus = aac_logical_to_phys(scmd_channel(cmd));
cid = scmd_id(cmd);
@@ -900,9 +905,9 @@ static int aac_eh_reset(struct scsi_cmnd* cmd)
msleep(1000);
}

- if (ret != SUCCESS)
- pr_err("%s: Host adapter reset request timed out\n",
- AAC_DRIVERNAME);
+ if (ret == SUCCESS)
+ goto out;
+
} else {

/* Mark the assoc. FIB to not complete, eh handler does this */
@@ -918,44 +923,42 @@ static int aac_eh_reset(struct scsi_cmnd* cmd)
cmd->SCp.phase = AAC_OWNER_ERROR_HANDLER;
}
}
+ }

- pr_err("%s: Host adapter reset request. SCSI hang ?\n",
- AAC_DRIVERNAME);
+ pr_err("%s: Host adapter reset request. SCSI hang ?\n", AAC_DRIVERNAME);
+
+ /*
+ * Check the health of the controller
+ */
+ status = aac_adapter_check_health(aac);
+ if (status)
+ dev_err(&aac->pdev->dev, "Adapter health - %d\n", status);
+
+ count = get_num_of_incomplete_fibs(aac);
+ if (count == 0)
+ return SUCCESS;

- /*
- * Check the health of the controller
- */
- status = aac_adapter_check_health(aac);
- if (status)
- dev_err(&aac->pdev->dev, "Adapter health - %d\n",
- status);
-
- count = get_num_of_incomplete_fibs(aac);
- if (count == 0)
- return SUCCESS;
-
- /*
- * This adapter needs a blind reset, only do so for
- * Adapters that support a register, instead of a commanded,
- * reset.
- */
- if (((aac->supplement_adapter_info.supported_options2 &
- AAC_OPTION_MU_RESET) ||
- (aac->supplement_adapter_info.supported_options2 &
- AAC_OPTION_DOORBELL_RESET)) &&
- aac_check_reset &&
- ((aac_check_reset != 1) ||
- !(aac->supplement_adapter_info.supported_options2 &
- AAC_OPTION_IGNORE_RESET))) {
- /* Bypass wait for command quiesce */
- aac_reset_adapter(aac, 2, IOP_HWSOFT_RESET);
- }
- ret = SUCCESS;
- }
/*
- * Cause an immediate retry of the command with a ten second delay
- * after successful tur
+ * Check if reset is supported by the firmware
*/
+ supported_options2 = aac->supplement_adapter_info.supported_options2;
+ is_mu_reset = supported_options2 & AAC_OPTION_MU_RESET;
+ is_doorbell_reset = supported_options2 & AAC_OPTION_DOORBELL_RESET;
+ is_ignore_reset = supported_options2 & AAC_OPTION_IGNORE_RESET;
+ /*
+ * This adapter needs a blind reset, only do so for
+ * Adapters that support a register, instead of a commanded,
+ * reset.
+ */
+ if ((is_mu_reset || is_doorbell_reset)
+ && aac_check_reset
+ && (aac_check_reset != -1 || !is_ignore_reset)) {
+ /* Bypass wait for command quiesce */
+ aac_reset_adapter(aac, 2, IOP_HWSOFT_RESET);
+ }
+ ret = SUCCESS;
+
+out:
return ret;
}

--
2.7.4