diff options
| author | Varun Prakash <varun@chelsio.com> | 2017-08-29 21:18:46 +0530 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2017-09-25 15:33:26 -0400 |
| commit | ff6e88f193c654449bf222450553a7fa16a75ca7 (patch) | |
| tree | fb64d7bfa14dc775555ecd3b658df84d28551d69 | |
| parent | 7c82532dcce8b39991ef5f486c2b54d7bb3e171b (diff) | |
scsi: csiostor: enable PCIe relaxed ordering if supported
Set PCIe relaxed ordering bits in FW_IQ_CMD if relaxed ordering is
enabled in the PCIe device.
Signed-off-by: Varun Prakash <varun@chelsio.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| -rw-r--r-- | drivers/scsi/csiostor/csio_hw.h | 3 | ||||
| -rw-r--r-- | drivers/scsi/csiostor/csio_init.c | 3 | ||||
| -rw-r--r-- | drivers/scsi/csiostor/csio_mb.c | 3 |
3 files changed, 9 insertions, 0 deletions
diff --git a/drivers/scsi/csiostor/csio_hw.h b/drivers/scsi/csiostor/csio_hw.h index 667046419b19..30f5f523c8cc 100644 --- a/drivers/scsi/csiostor/csio_hw.h +++ b/drivers/scsi/csiostor/csio_hw.h @@ -368,6 +368,9 @@ struct csio_hw_stats { #define CSIO_HWF_HOST_INTR_ENABLED 0x00000200 /* Are host interrupts * enabled? */ +#define CSIO_HWF_ROOT_NO_RELAXED_ORDERING 0x00000400 /* Is PCIe relaxed + * ordering enabled + */ #define csio_is_hw_intr_enabled(__hw) \ ((__hw)->flags & CSIO_HWF_HW_INTR_ENABLED) diff --git a/drivers/scsi/csiostor/csio_init.c b/drivers/scsi/csiostor/csio_init.c index 28a9c7d706cb..cb1711a5d7a3 100644 --- a/drivers/scsi/csiostor/csio_init.c +++ b/drivers/scsi/csiostor/csio_init.c @@ -968,6 +968,9 @@ static int csio_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) goto err_pci_exit; } + if (!pcie_relaxed_ordering_enabled(pdev)) + hw->flags |= CSIO_HWF_ROOT_NO_RELAXED_ORDERING; + pci_set_drvdata(pdev, hw); rv = csio_hw_start(hw); diff --git a/drivers/scsi/csiostor/csio_mb.c b/drivers/scsi/csiostor/csio_mb.c index 9451787ca7f2..7e74ec859228 100644 --- a/drivers/scsi/csiostor/csio_mb.c +++ b/drivers/scsi/csiostor/csio_mb.c @@ -491,6 +491,7 @@ csio_mb_iq_write(struct csio_hw *hw, struct csio_mb *mbp, void *priv, uint32_t iq_start_stop = (iq_params->iq_start) ? FW_IQ_CMD_IQSTART_F : FW_IQ_CMD_IQSTOP_F; + int relaxed = !(hw->flags & CSIO_HWF_ROOT_NO_RELAXED_ORDERING); /* * If this IQ write is cascaded with IQ alloc request, do not @@ -537,6 +538,8 @@ csio_mb_iq_write(struct csio_hw *hw, struct csio_mb *mbp, void *priv, cmdp->iqns_to_fl0congen |= htonl( FW_IQ_CMD_FL0HOSTFCMODE_V(iq_params->fl0hostfcmode)| FW_IQ_CMD_FL0CPRIO_V(iq_params->fl0cprio) | + FW_IQ_CMD_FL0FETCHRO_V(relaxed) | + FW_IQ_CMD_FL0DATARO_V(relaxed) | FW_IQ_CMD_FL0PADEN_V(iq_params->fl0paden) | FW_IQ_CMD_FL0PACKEN_V(iq_params->fl0packen)); cmdp->fl0dcaen_to_fl0cidxfthresh |= htons( |