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| author | James Smart <jsmart2021@gmail.com> | 2019-01-28 11:14:35 -0800 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2019-02-05 22:29:50 -0500 |
| commit | 222e9239c60888b7c9331f4b3d0a99d2f27dca6b (patch) | |
| tree | e0aa27118876bd0b6858b9993c5fdd4b22c5b1c5 /drivers/scsi/lpfc/lpfc_attr.c | |
| parent | 75508a8b8b2de1b39b72e7dc31505cddc8354a01 (diff) | |
| download | lwn-222e9239c60888b7c9331f4b3d0a99d2f27dca6b.tar.gz lwn-222e9239c60888b7c9331f4b3d0a99d2f27dca6b.zip | |
scsi: lpfc: Resize cpu maps structures based on possible cpus
The work done to date utilized the number of present cpus when sizing
per-cpu structures. Structures should have been sized based on the max
possible cpu count.
Convert the driver over to possible cpu count for sizing allocation.
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_attr.c')
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_attr.c | 23 |
1 files changed, 15 insertions, 8 deletions
diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c index 2864cb53b1e8..a114965a376c 100644 --- a/drivers/scsi/lpfc/lpfc_attr.c +++ b/drivers/scsi/lpfc/lpfc_attr.c @@ -5176,16 +5176,22 @@ lpfc_fcp_cpu_map_show(struct device *dev, struct device_attribute *attr, case 1: len += snprintf(buf + len, PAGE_SIZE-len, "fcp_cpu_map: HBA centric mapping (%d): " - "%d online CPUs\n", - phba->cfg_fcp_cpu_map, - phba->sli4_hba.num_online_cpu); + "%d of %d CPUs online from %d possible CPUs\n", + phba->cfg_fcp_cpu_map, num_online_cpus(), + num_present_cpus(), + phba->sli4_hba.num_possible_cpu); break; } - while (phba->sli4_hba.curr_disp_cpu < phba->sli4_hba.num_present_cpu) { + while (phba->sli4_hba.curr_disp_cpu < + phba->sli4_hba.num_possible_cpu) { cpup = &phba->sli4_hba.cpu_map[phba->sli4_hba.curr_disp_cpu]; - if (cpup->irq == LPFC_VECTOR_MAP_EMPTY) { + if (!cpu_present(phba->sli4_hba.curr_disp_cpu)) + len += snprintf(buf + len, PAGE_SIZE - len, + "CPU %02d not present\n", + phba->sli4_hba.curr_disp_cpu); + else if (cpup->irq == LPFC_VECTOR_MAP_EMPTY) { if (cpup->hdwq == LPFC_VECTOR_MAP_EMPTY) len += snprintf( buf + len, PAGE_SIZE - len, @@ -5225,14 +5231,15 @@ lpfc_fcp_cpu_map_show(struct device *dev, struct device_attribute *attr, /* display max number of CPUs keeping some margin */ if (phba->sli4_hba.curr_disp_cpu < - phba->sli4_hba.num_present_cpu && + phba->sli4_hba.num_possible_cpu && (len >= (PAGE_SIZE - 64))) { - len += snprintf(buf + len, PAGE_SIZE-len, "more...\n"); + len += snprintf(buf + len, + PAGE_SIZE - len, "more...\n"); break; } } - if (phba->sli4_hba.curr_disp_cpu == phba->sli4_hba.num_present_cpu) + if (phba->sli4_hba.curr_disp_cpu == phba->sli4_hba.num_possible_cpu) phba->sli4_hba.curr_disp_cpu = 0; return len; |