diff options
| author | Quinn Tran <qutran@marvell.com> | 2022-12-22 05:39:30 +0100 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2023-01-12 05:48:26 +0100 |
| commit | 1f8f9c34127e9fae20c29a2b57f56fd47dbb43e4 (patch) | |
| tree | 136bd8d34344d88818f649b691d0f3e17f854745 /drivers/scsi/qla2xxx/qla_def.h | |
| parent | scsi: qla2xxx: edif: Fix stall session after app start (diff) | |
| download | linux-1f8f9c34127e9fae20c29a2b57f56fd47dbb43e4.tar.xz linux-1f8f9c34127e9fae20c29a2b57f56fd47dbb43e4.zip | |
scsi: qla2xxx: edif: Reduce memory usage during low I/O
For edif, each I/O requires a secondary buffer to carry the FCP
cmnd. During high traffic time, these buffers are cached in the qpair. As
traffic dies down, these buffers will be trimmed as needed. If traffic is
reduced to none over 2 consecutive intervals, then these buffers will be
further trimmed.
Free FCP cmnd buffers to reduce memory usage during slow I/O time.
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/qla2xxx/qla_def.h')
| -rw-r--r-- | drivers/scsi/qla2xxx/qla_def.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h index 6f6190404939..972f1144b9d3 100644 --- a/drivers/scsi/qla2xxx/qla_def.h +++ b/drivers/scsi/qla2xxx/qla_def.h @@ -3735,7 +3735,10 @@ struct qla_buf_pool { u16 num_bufs; u16 num_active; u16 max_used; - u16 reserved; + u16 num_alloc; + u16 prev_max; + u16 pad; + uint32_t take_snapshot:1; unsigned long *buf_map; void **buf_array; dma_addr_t *dma_array; @@ -4874,6 +4877,7 @@ typedef struct scsi_qla_host { #define LOOP_READY 5 #define LOOP_DEAD 6 + unsigned long buf_expired; unsigned long relogin_jif; unsigned long dpc_flags; #define RESET_MARKER_NEEDED 0 /* Send marker to ISP. */ |