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| author | James Smart <jsmart2021@gmail.com> | 2019-03-12 16:30:28 -0700 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2019-03-19 13:15:09 -0400 |
| commit | 9afbee3d62a40532441d0de36ef3eaa38661a7bf (patch) | |
| tree | d4642e2ab57bcfc5702fcf862b4db997bd1231dd /drivers/scsi/lpfc/lpfc_debugfs.h | |
| parent | 9a66d990c7429d61c1cdc6feb22e559da587a0db (diff) | |
| download | lwn-9afbee3d62a40532441d0de36ef3eaa38661a7bf.tar.gz lwn-9afbee3d62a40532441d0de36ef3eaa38661a7bf.zip | |
scsi: lpfc: Reduce memory footprint for lpfc_queue
Currently the driver maintains a sideband structure which has a pointer for
each queue element. However, at 8 bytes per pointer, and up to 4k elements
per queue, and 100s of queues, this can take up a lot of memory.
Convert the driver to using an access routine that calculates the element
address based on its index rather than using the pointer table.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/lpfc/lpfc_debugfs.h')
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_debugfs.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/scsi/lpfc/lpfc_debugfs.h b/drivers/scsi/lpfc/lpfc_debugfs.h index 93ab7dfb8ee0..e42c1fac72cf 100644 --- a/drivers/scsi/lpfc/lpfc_debugfs.h +++ b/drivers/scsi/lpfc/lpfc_debugfs.h @@ -345,7 +345,7 @@ lpfc_debug_dump_qe(struct lpfc_queue *q, uint32_t idx) esize = q->entry_size; qe_word_cnt = esize / sizeof(uint32_t); - pword = q->qe[idx].address; + pword = lpfc_sli4_qe(q, idx); len = 0; len += snprintf(line_buf+len, LPFC_LBUF_SZ-len, "QE[%04d]: ", idx); |