ipr: don't log error messages when applications issues illegal requests

Failing Device information are logged when IOA firmware detected these
illegal request such as IOA firmware doesn't support inquiry with page
code 2. The patch fixes the issue.

Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Tested-by: Wen Xiong <wenxiong@linux.vnet.ibm.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>

diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c
index 924b0ba..2a9578c 100644 (file)
--- a/drivers/scsi/ipr.c
+++ b/drivers/scsi/ipr.c
@@ -2440,6 +2440,7 @@ static void ipr_handle_log_data(struct ipr_ioa_cfg *ioa_cfg,
 {
        u32 ioasc;
        int error_index;
+       struct ipr_hostrcb_type_21_error *error;
 
        if (hostrcb->hcam.notify_type != IPR_HOST_RCB_NOTIF_TYPE_ERROR_LOG_ENTRY)
                return;
@@ -2464,6 +2465,15 @@ static void ipr_handle_log_data(struct ipr_ioa_cfg *ioa_cfg,
        if (!ipr_error_table[error_index].log_hcam)
                return;
 
+       if (ioasc == IPR_IOASC_HW_CMD_FAILED &&
+           hostrcb->hcam.overlay_id == IPR_HOST_RCB_OVERLAY_ID_21) {
+               error = &hostrcb->hcam.u.error64.u.type_21_error;
+
+               if (((be32_to_cpu(error->sense_data[0]) & 0x0000ff00) >> 8) == ILLEGAL_REQUEST &&
+                       ioa_cfg->log_level <= IPR_DEFAULT_LOG_LEVEL)
+                               return;
+       }
+
        ipr_hcam_err(hostrcb, "%s\n", ipr_error_table[error_index].error);
 
        /* Set indication we have logged an error */

diff --git a/drivers/scsi/ipr.h b/drivers/scsi/ipr.h
index 31ed126..8f8960d 100644 (file)
--- a/drivers/scsi/ipr.h
+++ b/drivers/scsi/ipr.h
@@ -130,6 +130,7 @@
 #define IPR_IOASC_HW_DEV_BUS_STATUS                    0x04448500
 #define        IPR_IOASC_IOASC_MASK                    0xFFFFFF00
 #define        IPR_IOASC_SCSI_STATUS_MASK              0x000000FF
+#define IPR_IOASC_HW_CMD_FAILEd                        0x046E0000
 #define IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT   0x05240000
 #define IPR_IOASC_IR_RESOURCE_HANDLE           0x05250000
 #define IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA                0x05258100