qla2xxx: Add bsg interface to support statistics counter reset.
[mkp: Folded in compile fix] Signed-off-by: Sawan Chandak <sawan.chandak@qlogic.com> Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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@ -2246,53 +2246,53 @@ qla2x00_get_priv_stats(struct fc_bsg_job *bsg_job)
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struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
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struct link_statistics *stats = NULL;
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dma_addr_t stats_dma;
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int rval = QLA_FUNCTION_FAILED;
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int rval;
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uint32_t *cmd = bsg_job->request->rqst_data.h_vendor.vendor_cmd;
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uint options = cmd[0] == QL_VND_GET_PRIV_STATS_EX ? cmd[1] : 0;
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if (test_bit(UNLOADING, &vha->dpc_flags))
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goto done;
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return -ENODEV;
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if (unlikely(pci_channel_offline(ha->pdev)))
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goto done;
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return -ENODEV;
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if (qla2x00_reset_active(vha))
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goto done;
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return -EBUSY;
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if (!IS_FWI2_CAPABLE(ha))
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goto done;
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return -EPERM;
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stats = dma_alloc_coherent(&ha->pdev->dev,
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sizeof(struct link_statistics), &stats_dma, GFP_KERNEL);
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sizeof(*stats), &stats_dma, GFP_KERNEL);
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if (!stats) {
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ql_log(ql_log_warn, vha, 0x70e2,
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"Failed to allocate memory for stats.\n");
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goto done;
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"Failed to allocate memory for stats.\n");
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return -ENOMEM;
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}
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memset(stats, 0, sizeof(struct link_statistics));
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memset(stats, 0, sizeof(*stats));
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rval = qla24xx_get_isp_stats(base_vha, stats, stats_dma, 0);
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rval = qla24xx_get_isp_stats(base_vha, stats, stats_dma, options);
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if (rval != QLA_SUCCESS)
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goto done_free;
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if (rval == QLA_SUCCESS) {
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ql_dump_buffer(ql_dbg_user + ql_dbg_verbose, vha, 0x70e3,
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(uint8_t *)stats, sizeof(*stats));
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sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
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bsg_job->reply_payload.sg_cnt, stats, sizeof(*stats));
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}
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ql_dump_buffer(ql_dbg_user + ql_dbg_verbose, vha, 0x70e3,
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(uint8_t *)stats, sizeof(struct link_statistics));
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bsg_job->reply->reply_payload_rcv_len = sizeof(*stats);
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bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] =
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rval ? EXT_STATUS_MAILBOX : EXT_STATUS_OK;
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sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
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bsg_job->reply_payload.sg_cnt, stats, sizeof(struct link_statistics));
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bsg_job->reply->reply_payload_rcv_len = sizeof(struct link_statistics);
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bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] = EXT_STATUS_OK;
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bsg_job->reply_len = sizeof(struct fc_bsg_reply);
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bsg_job->reply_len = sizeof(*bsg_job->reply);
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bsg_job->reply->result = DID_OK << 16;
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bsg_job->job_done(bsg_job);
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done_free:
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dma_free_coherent(&ha->pdev->dev, sizeof(struct link_statistics),
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dma_free_coherent(&ha->pdev->dev, sizeof(*stats),
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stats, stats_dma);
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done:
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return rval;
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return 0;
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}
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static int
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@ -2401,6 +2401,7 @@ qla2x00_process_vendor_specific(struct fc_bsg_job *bsg_job)
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return qla27xx_get_bbcr_data(bsg_job);
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case QL_VND_GET_PRIV_STATS:
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case QL_VND_GET_PRIV_STATS_EX:
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return qla2x00_get_priv_stats(bsg_job);
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case QL_VND_DPORT_DIAGNOSTICS:
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@ -30,6 +30,7 @@
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#define QL_VND_GET_BBCR_DATA 0x17
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#define QL_VND_GET_PRIV_STATS 0x18
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#define QL_VND_DPORT_DIAGNOSTICS 0x19
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#define QL_VND_GET_PRIV_STATS_EX 0x1A
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/* BSG Vendor specific subcode returns */
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#define EXT_STATUS_OK 0
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