Hi Hal,

On 14:10 Thu 31 Dec     , Hal Rosenstock wrote:
> 
> to --details option
> 
> Signed-off-by: Hal Rosenstock <[email protected]>
> ---
> diff --git a/infiniband-diags/man/ibqueryerrors.8 
> b/infiniband-diags/man/ibqueryerrors.8
> index 83a2b5a..e7feea8 100644
> --- a/infiniband-diags/man/ibqueryerrors.8
> +++ b/infiniband-diags/man/ibqueryerrors.8
> @@ -1,4 +1,4 @@
> -.TH IBQUERYERRORS 8 "Oct 30, 2009" "OpenIB" "OpenIB Diagnostics"
> +.TH IBQUERYERRORS 8 "Dec 31, 2009" "OpenIB" "OpenIB Diagnostics"
>  
>  .SH NAME
>  ibqueryerrors \- query and report non-zero IB port counters
> @@ -58,7 +58,7 @@ printed or not.  This is because data counters are only 
> \fBprinted\fR on ports
>  which have errors.  This means if a port has 0 errors and the \-K option is
>  specified the data counters will be cleared without any printed output.
>  .TP
> -\fB\-\-details\fR include transmit discard details
> +\fB\-\-details\fR include receive error and transmit discard details
>  .TP
>  \fB\-R\fR  (This option is obsolete and does nothing)
>  
> diff --git a/infiniband-diags/src/ibqueryerrors.c 
> b/infiniband-diags/src/ibqueryerrors.c
> index 47bd2af..ceacc58 100644
> --- a/infiniband-diags/src/ibqueryerrors.c
> +++ b/infiniband-diags/src/ibqueryerrors.c
> @@ -205,24 +205,31 @@ static void report_suppressed(void)
>       printf("\n");
>  }
>  
> -static int print_xmitdisc_details(char *buf, size_t size, ib_portid_t * 
> portid,
> -                               ibnd_node_t * node, char *node_name,
> -                               int portnum)
> +static int print_details(char *buf, size_t size, ib_portid_t * portid,
> +                      ibnd_node_t * node, char *node_name, int portnum,
> +                      int j)
>  {
>       uint8_t pc[1024];
>       uint32_t val = 0;
>       int i, n;
>  
> +     if (j != IB_PC_ERR_RCV_F && j!= IB_PC_XMT_DISCARDS_F)
> +             return 0;
> +
>       memset(pc, 0, 1024);
>  
>       if (!pma_query_via(pc, portid, portnum, ibd_timeout,
> -                        IB_GSI_PORT_XMIT_DISCARD_DETAILS, ibmad_port)) {
> -             IBWARN("IB_GSI_PORT_XMIT_DISCARD_DETAILS query failed on %s, "
> -                    "%s port %d", node_name, portid2str(portid), portnum);
> +                        (j == IB_PC_ERR_RCV_F ? 
> IB_GSI_PORT_RCV_ERROR_DETAILS : IB_GSI_PORT_XMIT_DISCARD_DETAILS),
> +                        ibmad_port)) {
> +             IBWARN("%s query failed on %s, %s port %d",
> +                     (j == IB_PC_ERR_RCV_F ? "IB_GSI_PORT_RCV_ERROR_DETAILS" 
> : "IB_GSI_PORT_XMIT_DISCARD_DETAILS"),
> +                     node_name, portid2str(portid), portnum);
>               return 0;
>       }
>  
> -     for (n = 0, i = IB_PC_XMT_INACT_DISC_F; i <= IB_PC_XMT_SW_HOL_DISC_F;
> +     for (n = 0,
> +          i = (j == IB_PC_ERR_RCV_F ? IB_PC_RCV_LOCAL_PHY_ERR_F : 
> IB_PC_XMT_INACT_DISC_F);
> +          i <= (j == IB_PC_ERR_RCV_F ? IB_PC_RCV_LOOPING_ERR_F : 
> IB_PC_XMT_SW_HOL_DISC_F);
>            i++) {
>               mad_decode_field(pc, i, (void *)&val);
>               if (val)
> @@ -254,10 +261,14 @@ static void print_results(ib_portid_t * portid, char 
> *node_name,
>                       n += snprintf(str + n, 1024 - n, " [%s == %u]",
>                                     mad_field_name(i), val);
>  
> +             /* If there are PortRcvErrors, get details (if supported) */
> +             if (i == IB_PC_ERR_RCV_F && details && val) {
> +                     n += print_details(str + n, 1024 - n, portid,
> +                                        node, node_name, portnum, i);
>               /* If there are PortXmitDiscards, get details (if supported) */
> -             if (i == IB_PC_XMT_DISCARDS_F && details && val) {
> -                     n += print_xmitdisc_details(str + n, 1024 - n, portid,
> -                                                 node, node_name, portnum);
> +             } else if (i == IB_PC_XMT_DISCARDS_F && details && val) {
> +                     n += print_details(str + n, 1024 - n, portid,
> +                                        node, node_name, portnum, i);
>               }
>       }
>  

Could the code above be consolidated in more readable form (without
repeating the same conditional flows)? Maybe like this:

 
diff --git a/infiniband-diags/src/ibqueryerrors.c 
b/infiniband-diags/src/ibqueryerrors.c
index 47bd2af..0ebe4bf 100644
--- a/infiniband-diags/src/ibqueryerrors.c
+++ b/infiniband-diags/src/ibqueryerrors.c
@@ -205,30 +205,31 @@ static void report_suppressed(void)
        printf("\n");
 }
 
-static int print_xmitdisc_details(char *buf, size_t size, ib_portid_t * portid,
-                                 ibnd_node_t * node, char *node_name,
-                                 int portnum)
+static int query_and_dump(char *buf, size_t size, ib_portid_t * portid,
+                        ibnd_node_t * node, char *node_name, int portnum,
+                        const char *attr_name, uint16_t attr_id,
+                        int start_field, int end_field)
 {
        uint8_t pc[1024];
        uint32_t val = 0;
        int i, n;
 
-       memset(pc, 0, 1024);
+       memset(pc, 0, sizeof(pc));
 
-       if (!pma_query_via(pc, portid, portnum, ibd_timeout,
-                          IB_GSI_PORT_XMIT_DISCARD_DETAILS, ibmad_port)) {
-               IBWARN("IB_GSI_PORT_XMIT_DISCARD_DETAILS query failed on %s, "
-                      "%s port %d", node_name, portid2str(portid), portnum);
+       if (!pma_query_via(pc, portid, portnum, ibd_timeout, attr_id,
+                          ibmad_port)) {
+               IBWARN("%s query failed on %s, %s port %d", attr_name,
+                       node_name, portid2str(portid), portnum);
                return 0;
        }
 
-       for (n = 0, i = IB_PC_XMT_INACT_DISC_F; i <= IB_PC_XMT_SW_HOL_DISC_F;
-            i++) {
+       for (n = 0, i = start_field; i < end_field; i++) {
                mad_decode_field(pc, i, (void *)&val);
                if (val)
                        n += snprintf(buf + n, size - n, " [%s == %u]",
                                      mad_field_name(i), val);
        }
+
        return n;
 }
 
@@ -256,8 +257,20 @@ static void print_results(ib_portid_t * portid, char 
*node_name,
 
                /* If there are PortXmitDiscards, get details (if supported) */
                if (i == IB_PC_XMT_DISCARDS_F && details && val) {
-                       n += print_xmitdisc_details(str + n, 1024 - n, portid,
-                                                   node, node_name, portnum);
+                       n += query_and_dump(str + n, sizeof(buf) - n, portid,
+                                           node, node_name, portnum,
+                                           "PortXmitDiscardDetails",
+                                           IB_GSI_PORT_XMIT_DISCARD_DETAILS,
+                                           IB_PC_RCV_LOCAL_PHY_ERR_F,
+                                           IB_PC_RCV_ERR_LAST_F);
+               /* If there are PortRcvErrors, get details (if supported) */
+               } else if (i == IB_PC_ERR_RCV_F && details && val) {
+                       n += query_and_dump(str + n, sizeof(buf) - n, portid,
+                                           node, node_name, portnum,
+                                           "PortRecvErrorsDetails",
+                                           IB_GSI_PORT_RCV_ERROR_DETAILS,
+                                           IB_PC_XMT_INACT_DISC_F,
+                                           IB_PC_XMT_DISC_LAST_F);
                }
        }
 
? 

> @@ -364,6 +375,10 @@ static void clear_port(ib_portid_t * portid, uint16_t 
> cap_mask,
>               performance_reset_via(pc, portid, port, mask, ibd_timeout,
>                                     IB_GSI_PORT_XMIT_DISCARD_DETAILS,
>                                     ibmad_port);
> +             mask = 0x3F;
> +             performance_reset_via(pc, portid, port, mask, ibd_timeout,
> +                                   IB_GSI_PORT_RCV_ERROR_DETAILS,
> +                                   ibmad_port);

If 'mask' value is used unconditionally whouldn't it be simpler to just
write:

                performance_reset_via(pc, portid, port, 0x3f, ibd_timeout,
                                      IB_GSI_PORT_RCV_ERROR_DETAILS,
                                      ibmad_port);

?

Sasha
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