diff options
author | Julian Wiedmann <jwi@linux.ibm.com> | 2019-11-14 11:19:14 +0100 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2019-11-14 18:16:50 -0800 |
commit | 845ef9047b1f4e8ea3b8865140066b08fe93d05c (patch) | |
tree | 6a21016c1777540f3f8474af574dcfe4fc4d9ead | |
parent | 24df31f8d5be1b09f9e6c6d07ddfa96cbef1782b (diff) | |
download | linux-845ef9047b1f4e8ea3b8865140066b08fe93d05c.tar.gz linux-845ef9047b1f4e8ea3b8865140066b08fe93d05c.tar.bz2 linux-845ef9047b1f4e8ea3b8865140066b08fe93d05c.zip |
s390/qeth: gather more detailed RX dropped/error statistics
Where available, use the fine-grained counters in rtnl_link_stats64 to
indicate different RX error causes. For drop reasons, use driver-private
ethtool counters.
In particular this patch allows us to keep track of driver-side drops due
to unknown/unsupported HW descriptor format.
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r-- | drivers/s390/net/qeth_core.h | 7 | ||||
-rw-r--r-- | drivers/s390/net/qeth_core_main.c | 17 | ||||
-rw-r--r-- | drivers/s390/net/qeth_ethtool.c | 2 | ||||
-rw-r--r-- | drivers/s390/net/qeth_l2_main.c | 1 | ||||
-rw-r--r-- | drivers/s390/net/qeth_l3_main.c | 1 |
5 files changed, 20 insertions, 8 deletions
diff --git a/drivers/s390/net/qeth_core.h b/drivers/s390/net/qeth_core.h index d08154502b15..14edc892f7c1 100644 --- a/drivers/s390/net/qeth_core.h +++ b/drivers/s390/net/qeth_core.h @@ -477,12 +477,15 @@ struct qeth_card_stats { u64 rx_sg_frags; u64 rx_sg_alloc_page; + u64 rx_dropped_nomem; + u64 rx_dropped_notsupp; + /* rtnl_link_stats64 */ u64 rx_packets; u64 rx_bytes; - u64 rx_errors; - u64 rx_dropped; u64 rx_multicast; + u64 rx_length_errors; + u64 rx_fifo_errors; }; struct qeth_out_q_stats { diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c index 9e8bd8e08146..4e113f359be9 100644 --- a/drivers/s390/net/qeth_core_main.c +++ b/drivers/s390/net/qeth_core_main.c @@ -3093,7 +3093,7 @@ static int qeth_check_qdio_errors(struct qeth_card *card, buf->element[14].sflags); QETH_CARD_TEXT_(card, 2, " qerr=%X", qdio_error); if ((buf->element[15].sflags) == 0x12) { - QETH_CARD_STAT_INC(card, rx_dropped); + QETH_CARD_STAT_INC(card, rx_fifo_errors); return 0; } else return 1; @@ -4346,7 +4346,7 @@ static int qeth_mdio_read(struct net_device *dev, int phy_id, int regnum) case MII_NWAYTEST: /* N-way auto-neg test register */ break; case MII_RERRCOUNTER: /* rx error counter */ - rc = card->stats.rx_errors; + rc = card->stats.rx_length_errors + card->stats.rx_fifo_errors; break; case MII_SREVISION: /* silicon revision */ break; @@ -5092,6 +5092,7 @@ struct sk_buff *qeth_core_get_next_skb(struct qeth_card *card, headroom = sizeof(struct qeth_hdr); break; default: + QETH_CARD_STAT_INC(card, rx_dropped_notsupp); break; } @@ -5134,7 +5135,7 @@ struct sk_buff *qeth_core_get_next_skb(struct qeth_card *card, QETH_CARD_TEXT(card, 4, "unexeob"); QETH_CARD_HEX(card, 2, buffer, sizeof(void *)); dev_kfree_skb_any(skb); - QETH_CARD_STAT_INC(card, rx_errors); + QETH_CARD_STAT_INC(card, rx_length_errors); return NULL; } element++; @@ -5156,7 +5157,7 @@ no_mem: if (net_ratelimit()) { QETH_CARD_TEXT(card, 2, "noskbmem"); } - QETH_CARD_STAT_INC(card, rx_dropped); + QETH_CARD_STAT_INC(card, rx_dropped_nomem); return NULL; } EXPORT_SYMBOL_GPL(qeth_core_get_next_skb); @@ -6236,9 +6237,13 @@ void qeth_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats) stats->rx_packets = card->stats.rx_packets; stats->rx_bytes = card->stats.rx_bytes; - stats->rx_errors = card->stats.rx_errors; - stats->rx_dropped = card->stats.rx_dropped; + stats->rx_errors = card->stats.rx_length_errors + + card->stats.rx_fifo_errors; + stats->rx_dropped = card->stats.rx_dropped_nomem + + card->stats.rx_dropped_notsupp; stats->multicast = card->stats.rx_multicast; + stats->rx_length_errors = card->stats.rx_length_errors; + stats->rx_fifo_errors = card->stats.rx_fifo_errors; for (i = 0; i < card->qdio.no_out_queues; i++) { queue = card->qdio.out_qs[i]; diff --git a/drivers/s390/net/qeth_ethtool.c b/drivers/s390/net/qeth_ethtool.c index 096698df3886..f7485c6dea25 100644 --- a/drivers/s390/net/qeth_ethtool.c +++ b/drivers/s390/net/qeth_ethtool.c @@ -49,6 +49,8 @@ static const struct qeth_stats card_stats[] = { QETH_CARD_STAT("rx0 SG skbs", rx_sg_skbs), QETH_CARD_STAT("rx0 SG page frags", rx_sg_frags), QETH_CARD_STAT("rx0 SG page allocs", rx_sg_alloc_page), + QETH_CARD_STAT("rx0 dropped, no memory", rx_dropped_nomem), + QETH_CARD_STAT("rx0 dropped, bad format", rx_dropped_notsupp), }; #define TXQ_STATS_LEN ARRAY_SIZE(txq_stats) diff --git a/drivers/s390/net/qeth_l2_main.c b/drivers/s390/net/qeth_l2_main.c index 8f3093d24b12..1e85956f95c6 100644 --- a/drivers/s390/net/qeth_l2_main.c +++ b/drivers/s390/net/qeth_l2_main.c @@ -336,6 +336,7 @@ static int qeth_l2_process_inbound_buffer(struct qeth_card *card, dev_kfree_skb_any(skb); QETH_CARD_TEXT(card, 3, "inbunkno"); QETH_DBF_HEX(CTRL, 3, hdr, sizeof(*hdr)); + QETH_CARD_STAT_INC(card, rx_dropped_notsupp); continue; } work_done++; diff --git a/drivers/s390/net/qeth_l3_main.c b/drivers/s390/net/qeth_l3_main.c index 70d4586dc779..72c61faae3f9 100644 --- a/drivers/s390/net/qeth_l3_main.c +++ b/drivers/s390/net/qeth_l3_main.c @@ -1391,6 +1391,7 @@ static int qeth_l3_process_inbound_buffer(struct qeth_card *card, dev_kfree_skb_any(skb); QETH_CARD_TEXT(card, 3, "inbunkno"); QETH_DBF_HEX(CTRL, 3, hdr, sizeof(*hdr)); + QETH_CARD_STAT_INC(card, rx_dropped_notsupp); continue; } work_done++; |