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| author | James Smart <jsmart2021@gmail.com> | 2019-01-28 11:14:31 -0800 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2019-02-05 22:29:49 -0500 |
| commit | 6a828b0f6192b4930894925d1c1d0dc1f1d99e6e (patch) | |
| tree | 30837f3b1f484f4b6357b173b173e3e3b8672464 /drivers/scsi/lpfc/lpfc.h | |
| parent | b3295c2a75333a4d6f0f945c7c148b1c0a453a8f (diff) | |
| download | lwn-6a828b0f6192b4930894925d1c1d0dc1f1d99e6e.tar.gz lwn-6a828b0f6192b4930894925d1c1d0dc1f1d99e6e.zip | |
scsi: lpfc: Support non-uniform allocation of MSIX vectors to hardware queues
So far MSIX vector allocation assumed it would be 1:1 with hardware
queues. However, there are several reasons why fewer MSIX vectors may be
allocated than hardware queues such as the platform being out of vectors or
adapter limits being less than cpu count.
This patch reworks the MSIX/EQ relationships with the per-cpu hardware
queues so they can function independently. MSIX vectors will be equitably
split been cpu sockets/cores and then the per-cpu hardware queues will be
mapped to the vectors most efficient for them.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/lpfc/lpfc.h')
| -rw-r--r-- | drivers/scsi/lpfc/lpfc.h | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h index 0f8964fdfecf..9fd2811ffa8b 100644 --- a/drivers/scsi/lpfc/lpfc.h +++ b/drivers/scsi/lpfc/lpfc.h @@ -84,8 +84,6 @@ struct lpfc_sli2_slim; #define LPFC_HB_MBOX_INTERVAL 5 /* Heart beat interval in seconds. */ #define LPFC_HB_MBOX_TIMEOUT 30 /* Heart beat timeout in seconds. */ -#define LPFC_LOOK_AHEAD_OFF 0 /* Look ahead logic is turned off */ - /* Error Attention event polling interval */ #define LPFC_ERATT_POLL_INTERVAL 5 /* EATT poll interval in seconds */ @@ -821,6 +819,7 @@ struct lpfc_hba { uint32_t cfg_fcp_imax; uint32_t cfg_fcp_cpu_map; uint32_t cfg_hdw_queue; + uint32_t cfg_irq_chann; uint32_t cfg_suppress_rsp; uint32_t cfg_nvme_oas; uint32_t cfg_nvme_embed_cmd; @@ -1042,6 +1041,9 @@ struct lpfc_hba { struct dentry *debug_nvmeio_trc; struct lpfc_debugfs_nvmeio_trc *nvmeio_trc; struct dentry *debug_hdwqinfo; +#ifdef LPFC_HDWQ_LOCK_STAT + struct dentry *debug_lockstat; +#endif atomic_t nvmeio_trc_cnt; uint32_t nvmeio_trc_size; uint32_t nvmeio_trc_output_idx; @@ -1161,6 +1163,7 @@ struct lpfc_hba { #define LPFC_CHECK_NVME_IO 1 #define LPFC_CHECK_NVMET_RCV 2 #define LPFC_CHECK_NVMET_IO 4 +#define LPFC_CHECK_SCSI_IO 8 uint16_t ktime_on; uint64_t ktime_data_samples; uint64_t ktime_status_samples; |