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| author | Brian King <brking@linux.vnet.ibm.com> | 2016-08-24 12:56:51 -0500 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2016-08-25 23:39:15 -0400 |
| commit | afc3f83cb4a5bb3c8f18380bdeca6b65a6ff9543 (patch) | |
| tree | d7fef8ffde79690a471775c0205d91d449bb3571 /drivers/scsi/ipr.h | |
| parent | 6328d9030f0fcf9935a00b1cd9d90c1129526a9c (diff) | |
| download | linux-afc3f83cb4a5bb3c8f18380bdeca6b65a6ff9543.tar.gz | |
scsi: ipr: Add asynchronous error notification
This patch implements functions for pushing HCAM (host controlled asynchronous messages) error buffers to userspace through sysfs attributes. Reads to the "async_err_log" attribute will result in a single HCAM buffer being copied to userspace; one can process the next HCAM buffer by writing any string to the same attribute. A new list was added to the ioa_cfg structure to store the HCAM buffers for later reporting. We also send a KOBJ_CHANGE event whenever a new HCAM buffer is made available to userspace. Signed-off-by: Heitor Ricardo Alves de Siqueira <halves@linux.vnet.ibm.com> Signed-off-by: Gabriel Krisman Bertazi <krisman@linux.vnet.ibm.com> Signed-off-by: Brian King <brking@linux.vnet.ibm.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/ipr.h')
| -rw-r--r-- | drivers/scsi/ipr.h | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/scsi/ipr.h b/drivers/scsi/ipr.h index cdb51960b53c..4dbeaafa0ba2 100644 --- a/drivers/scsi/ipr.h +++ b/drivers/scsi/ipr.h @@ -154,7 +154,9 @@ #define IPR_DEFAULT_MAX_ERROR_DUMP 984 #define IPR_NUM_LOG_HCAMS 2 #define IPR_NUM_CFG_CHG_HCAMS 2 +#define IPR_NUM_HCAM_QUEUE 12 #define IPR_NUM_HCAMS (IPR_NUM_LOG_HCAMS + IPR_NUM_CFG_CHG_HCAMS) +#define IPR_MAX_HCAMS (IPR_NUM_HCAMS + IPR_NUM_HCAM_QUEUE) #define IPR_MAX_SIS64_TARGETS_PER_BUS 1024 #define IPR_MAX_SIS64_LUNS_PER_TARGET 0xffffffff @@ -1532,10 +1534,11 @@ struct ipr_ioa_cfg { char ipr_hcam_label[8]; #define IPR_HCAM_LABEL "hcams" - struct ipr_hostrcb *hostrcb[IPR_NUM_HCAMS]; - dma_addr_t hostrcb_dma[IPR_NUM_HCAMS]; + struct ipr_hostrcb *hostrcb[IPR_MAX_HCAMS]; + dma_addr_t hostrcb_dma[IPR_MAX_HCAMS]; struct list_head hostrcb_free_q; struct list_head hostrcb_pending_q; + struct list_head hostrcb_report_q; struct ipr_hrr_queue hrrq[IPR_MAX_HRRQ_NUM]; u32 hrrq_num; |