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Index: head/sys/dev/sfxge/common/ef10_mac.c
===================================================================
--- head/sys/dev/sfxge/common/ef10_mac.c
+++ head/sys/dev/sfxge/common/ef10_mac.c
@@ -571,8 +571,19 @@
goto fail8;
}
+ if (encp->enc_hlb_counters) {
+ const struct efx_mac_stats_range ef10_hlb[] = {
+ { EFX_MAC_RXDP_HLB_IDLE, EFX_MAC_RXDP_HLB_TIMEOUT },
+ };
+ if ((rc = efx_mac_stats_mask_add_ranges(maskp, mask_size,
+ ef10_hlb, EFX_ARRAY_SIZE(ef10_hlb))) != 0)
+ goto fail9;
+ }
+
return (0);
+fail9:
+ EFSYS_PROBE(fail9);
fail8:
EFSYS_PROBE(fail8);
fail7:
@@ -1025,6 +1036,13 @@
&value);
EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RXDP_SCATTER_DISABLED_TRUNC]),
&value);
+
+ /* Head-of-line blocking */
+ EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RXDP_HLB_IDLE, &value);
+ EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RXDP_HLB_IDLE]), &value);
+
+ EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RXDP_HLB_TIMEOUT, &value);
+ EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RXDP_HLB_TIMEOUT]), &value);
done:
/* Read START generation counter */
Index: head/sys/dev/sfxge/common/ef10_nic.c
===================================================================
--- head/sys/dev/sfxge/common/ef10_nic.c
+++ head/sys/dev/sfxge/common/ef10_nic.c
@@ -1272,6 +1272,12 @@
else
encp->enc_fec_counters = B_FALSE;
+ /* Check if the firmware provides head-of-line blocking counters */
+ if (CAP_FLAGS2(req, RXDP_HLB_IDLE))
+ encp->enc_hlb_counters = B_TRUE;
+ else
+ encp->enc_hlb_counters = B_FALSE;
+
if (CAP_FLAGS1(req, RX_RSS_LIMITED)) {
/* Only one exclusive RSS context is available per port. */
encp->enc_rx_scale_max_exclusive_contexts = 1;
Index: head/sys/dev/sfxge/common/efx.h
===================================================================
--- head/sys/dev/sfxge/common/efx.h
+++ head/sys/dev/sfxge/common/efx.h
@@ -1324,6 +1324,7 @@
/* Firmware support for extended MAC_STATS buffer */
uint32_t enc_mac_stats_nstats;
boolean_t enc_fec_counters;
+ boolean_t enc_hlb_counters;
/* Firmware support for "FLAG" and "MARK" filter actions */
boolean_t enc_filter_action_flag_supported;
boolean_t enc_filter_action_mark_supported;

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