From: Andrew Rybchenko Date: Thu, 3 May 2018 14:41:19 +0000 (+0100) Subject: net/sfc/base: add Medford2 head-of-line blocking stats X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=a9e0e6747d8ac908a262b57c3a23ff7549c9fbe9;p=dpdk.git net/sfc/base: add Medford2 head-of-line blocking stats These stats are availble on Medford2 DPDK firmware variant which support equal stride super-buffer Rx mode. RXDP_HLB_IDLE capability bit is set when the stats are available. Signed-off-by: Andrew Rybchenko Reviewed-by: Andy Moreton --- diff --git a/drivers/net/sfc/base/ef10_mac.c b/drivers/net/sfc/base/ef10_mac.c index e3adcac536..1031e83691 100644 --- a/drivers/net/sfc/base/ef10_mac.c +++ b/drivers/net/sfc/base/ef10_mac.c @@ -544,8 +544,19 @@ ef10_mac_stats_get_mask( 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: @@ -999,6 +1010,13 @@ ef10_mac_stats_update( 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 */ EFSYS_DMA_SYNC_FOR_KERNEL(esmp, 0, EFSYS_MEM_SIZE(esmp)); diff --git a/drivers/net/sfc/base/ef10_nic.c b/drivers/net/sfc/base/ef10_nic.c index 44286dbf39..7dbf843bf3 100644 --- a/drivers/net/sfc/base/ef10_nic.c +++ b/drivers/net/sfc/base/ef10_nic.c @@ -1245,6 +1245,12 @@ ef10_get_datapath_caps( 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; diff --git a/drivers/net/sfc/base/efx.h b/drivers/net/sfc/base/efx.h index 7f4e59e99c..5108b9b1f6 100644 --- a/drivers/net/sfc/base/efx.h +++ b/drivers/net/sfc/base/efx.h @@ -1296,6 +1296,7 @@ typedef struct efx_nic_cfg_s { /* 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;