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[src/trunk]: src/sys/dev/pci - Split txdrop evcnt into pcqdrop and descdrop.



details:   https://anonhg.NetBSD.org/src/rev/774f64787376
branches:  trunk
changeset: 993444:774f64787376
user:      msaitoh <msaitoh%NetBSD.org@localhost>
date:      Wed Sep 12 04:37:18 2018 +0000

description:
- Split txdrop evcnt into pcqdrop and descdrop.
- Simplify evcnt name by removing duplicated "tx" or "rx".
- s/tu/underrun/

diffstat:

 sys/dev/pci/if_wm.c |  156 ++++++++++++++++++++++++++-------------------------
 1 files changed, 79 insertions(+), 77 deletions(-)

diffs (truncated from 385 to 300 lines):

diff -r 0f8e7bc90476 -r 774f64787376 sys/dev/pci/if_wm.c
--- a/sys/dev/pci/if_wm.c       Wed Sep 12 03:23:38 2018 +0000
+++ b/sys/dev/pci/if_wm.c       Wed Sep 12 04:37:18 2018 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: if_wm.c,v 1.585 2018/09/03 16:29:32 riastradh Exp $    */
+/*     $NetBSD: if_wm.c,v 1.586 2018/09/12 04:37:18 msaitoh Exp $      */
 
 /*
  * Copyright (c) 2001, 2002, 2003, 2004 Wasabi Systems, Inc.
@@ -83,7 +83,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: if_wm.c,v 1.585 2018/09/03 16:29:32 riastradh Exp $");
+__KERNEL_RCSID(0, "$NetBSD: if_wm.c,v 1.586 2018/09/12 04:37:18 msaitoh Exp $");
 
 #ifdef _KERNEL_OPT
 #include "opt_net_mpsafe.h"
@@ -376,23 +376,24 @@
        uint32_t txq_packets;           /* for AIM */
        uint32_t txq_bytes;             /* for AIM */
 #ifdef WM_EVENT_COUNTERS
-       WM_Q_EVCNT_DEFINE(txq, txsstall)        /* Tx stalled due to no txs */
-       WM_Q_EVCNT_DEFINE(txq, txdstall)        /* Tx stalled due to no txd */
-       WM_Q_EVCNT_DEFINE(txq, txfifo_stall)    /* Tx FIFO stalls (82547) */
-       WM_Q_EVCNT_DEFINE(txq, txdw)            /* Tx descriptor interrupts */
-       WM_Q_EVCNT_DEFINE(txq, txqe)            /* Tx queue empty interrupts */
-                                               /* XXX not used? */
-
-       WM_Q_EVCNT_DEFINE(txq, txipsum)         /* IP checksums comp. out-bound */
-       WM_Q_EVCNT_DEFINE(txq, txtusum)         /* TCP/UDP cksums comp. out-bound */
-       WM_Q_EVCNT_DEFINE(txq, txtusum6)        /* TCP/UDP v6 cksums comp. out-bound */
-       WM_Q_EVCNT_DEFINE(txq, txtso)           /* TCP seg offload out-bound (IPv4) */
-       WM_Q_EVCNT_DEFINE(txq, txtso6)          /* TCP seg offload out-bound (IPv6) */
-       WM_Q_EVCNT_DEFINE(txq, txtsopain)       /* painful header manip. for TSO */
-
-       WM_Q_EVCNT_DEFINE(txq, txdrop)          /* Tx packets dropped(too many segs) */
-
-       WM_Q_EVCNT_DEFINE(txq, tu)              /* Tx underrun */
+       /* TX event counters */
+       WM_Q_EVCNT_DEFINE(txq, txsstall)    /* Stalled due to no txs */
+       WM_Q_EVCNT_DEFINE(txq, txdstall)    /* Stalled due to no txd */
+       WM_Q_EVCNT_DEFINE(txq, fifo_stall)  /* FIFO stalls (82547) */
+       WM_Q_EVCNT_DEFINE(txq, txdw)        /* Tx descriptor interrupts */
+       WM_Q_EVCNT_DEFINE(txq, txqe)        /* Tx queue empty interrupts */
+                                           /* XXX not used? */
+
+       WM_Q_EVCNT_DEFINE(txq, ipsum)       /* IP checksums comp. */
+       WM_Q_EVCNT_DEFINE(txq, tusum)       /* TCP/UDP cksums comp. */
+       WM_Q_EVCNT_DEFINE(txq, tusum6)      /* TCP/UDP v6 cksums comp. */
+       WM_Q_EVCNT_DEFINE(txq, tso)         /* TCP seg offload (IPv4) */
+       WM_Q_EVCNT_DEFINE(txq, tso6)        /* TCP seg offload (IPv6) */
+       WM_Q_EVCNT_DEFINE(txq, tsopain)     /* Painful header manip. for TSO */
+       WM_Q_EVCNT_DEFINE(txq, pcqdrop)     /* Pkt dropped in pcq */
+       WM_Q_EVCNT_DEFINE(txq, descdrop)    /* Pkt dropped in MAC desc ring */
+
+       WM_Q_EVCNT_DEFINE(txq, underrun)    /* Tx underrun */
 
        char txq_txseg_evcnt_names[WM_NTXSEGS][sizeof("txqXXtxsegXXX")];
        struct evcnt txq_ev_txseg[WM_NTXSEGS]; /* Tx packets w/ N segments */
@@ -433,11 +434,12 @@
        uint32_t rxq_packets;           /* for AIM */
        uint32_t rxq_bytes;             /* for AIM */
 #ifdef WM_EVENT_COUNTERS
-       WM_Q_EVCNT_DEFINE(rxq, rxintr);         /* Rx interrupts */
-       WM_Q_EVCNT_DEFINE(rxq, rxdefer);        /* Rx deferred processing */
-
-       WM_Q_EVCNT_DEFINE(rxq, rxipsum);        /* IP checksums checked in-bound */
-       WM_Q_EVCNT_DEFINE(rxq, rxtusum);        /* TCP/UDP cksums checked in-bound */
+       /* RX event counters */
+       WM_Q_EVCNT_DEFINE(rxq, intr);   /* Interrupts */
+       WM_Q_EVCNT_DEFINE(rxq, defer);  /* Rx deferred processing */
+
+       WM_Q_EVCNT_DEFINE(rxq, ipsum);  /* IP checksums checked */
+       WM_Q_EVCNT_DEFINE(rxq, tusum);  /* TCP/UDP cksums checked */
 #endif
 };
 
@@ -6451,16 +6453,15 @@
 
                WM_Q_MISC_EVCNT_ATTACH(txq, txsstall, txq, i, xname);
                WM_Q_MISC_EVCNT_ATTACH(txq, txdstall, txq, i, xname);
-               WM_Q_MISC_EVCNT_ATTACH(txq, txfifo_stall, txq, i, xname);
+               WM_Q_MISC_EVCNT_ATTACH(txq, fifo_stall, txq, i, xname);
                WM_Q_INTR_EVCNT_ATTACH(txq, txdw, txq, i, xname);
                WM_Q_INTR_EVCNT_ATTACH(txq, txqe, txq, i, xname);
-
-               WM_Q_MISC_EVCNT_ATTACH(txq, txipsum, txq, i, xname);
-               WM_Q_MISC_EVCNT_ATTACH(txq, txtusum, txq, i, xname);
-               WM_Q_MISC_EVCNT_ATTACH(txq, txtusum6, txq, i, xname);
-               WM_Q_MISC_EVCNT_ATTACH(txq, txtso, txq, i, xname);
-               WM_Q_MISC_EVCNT_ATTACH(txq, txtso6, txq, i, xname);
-               WM_Q_MISC_EVCNT_ATTACH(txq, txtsopain, txq, i, xname);
+               WM_Q_MISC_EVCNT_ATTACH(txq, ipsum, txq, i, xname);
+               WM_Q_MISC_EVCNT_ATTACH(txq, tusum, txq, i, xname);
+               WM_Q_MISC_EVCNT_ATTACH(txq, tusum6, txq, i, xname);
+               WM_Q_MISC_EVCNT_ATTACH(txq, tso, txq, i, xname);
+               WM_Q_MISC_EVCNT_ATTACH(txq, tso6, txq, i, xname);
+               WM_Q_MISC_EVCNT_ATTACH(txq, tsopain, txq, i, xname);
 
                for (j = 0; j < WM_NTXSEGS; j++) {
                        snprintf(txq->txq_txseg_evcnt_names[j],
@@ -6469,9 +6470,9 @@
                            NULL, xname, txq->txq_txseg_evcnt_names[j]);
                }
 
-               WM_Q_MISC_EVCNT_ATTACH(txq, txdrop, txq, i, xname);
-
-               WM_Q_MISC_EVCNT_ATTACH(txq, tu, txq, i, xname);
+               WM_Q_MISC_EVCNT_ATTACH(txq, pcqdrop, txq, i, xname);
+               WM_Q_MISC_EVCNT_ATTACH(txq, descdrop, txq, i, xname);
+               WM_Q_MISC_EVCNT_ATTACH(txq, underrun, txq, i, xname);
 #endif /* WM_EVENT_COUNTERS */
 
                tx_done++;
@@ -6505,11 +6506,11 @@
 #ifdef WM_EVENT_COUNTERS
                xname = device_xname(sc->sc_dev);
 
-               WM_Q_INTR_EVCNT_ATTACH(rxq, rxintr, rxq, i, xname);
-               WM_Q_INTR_EVCNT_ATTACH(rxq, rxdefer, rxq, i, xname);
-
-               WM_Q_MISC_EVCNT_ATTACH(rxq, rxipsum, rxq, i, xname);
-               WM_Q_MISC_EVCNT_ATTACH(rxq, rxtusum, rxq, i, xname);
+               WM_Q_INTR_EVCNT_ATTACH(rxq, intr, rxq, i, xname);
+               WM_Q_INTR_EVCNT_ATTACH(rxq, defer, rxq, i, xname);
+
+               WM_Q_MISC_EVCNT_ATTACH(rxq, ipsum, rxq, i, xname);
+               WM_Q_MISC_EVCNT_ATTACH(rxq, tusum, rxq, i, xname);
 #endif /* WM_EVENT_COUNTERS */
 
                rx_done++;
@@ -6556,10 +6557,10 @@
                struct wm_rxqueue *rxq = &sc->sc_queue[i].wmq_rxq;
 
 #ifdef WM_EVENT_COUNTERS
-               WM_Q_EVCNT_DETACH(rxq, rxintr, rxq, i);
-               WM_Q_EVCNT_DETACH(rxq, rxdefer, rxq, i);
-               WM_Q_EVCNT_DETACH(rxq, rxipsum, rxq, i);
-               WM_Q_EVCNT_DETACH(rxq, rxtusum, rxq, i);
+               WM_Q_EVCNT_DETACH(rxq, intr, rxq, i);
+               WM_Q_EVCNT_DETACH(rxq, defer, rxq, i);
+               WM_Q_EVCNT_DETACH(rxq, ipsum, rxq, i);
+               WM_Q_EVCNT_DETACH(rxq, tusum, rxq, i);
 #endif /* WM_EVENT_COUNTERS */
 
                wm_free_rx_buffer(sc, rxq);
@@ -6576,21 +6577,22 @@
 
                WM_Q_EVCNT_DETACH(txq, txsstall, txq, i);
                WM_Q_EVCNT_DETACH(txq, txdstall, txq, i);
-               WM_Q_EVCNT_DETACH(txq, txfifo_stall, txq, i);
+               WM_Q_EVCNT_DETACH(txq, fifo_stall, txq, i);
                WM_Q_EVCNT_DETACH(txq, txdw, txq, i);
                WM_Q_EVCNT_DETACH(txq, txqe, txq, i);
-               WM_Q_EVCNT_DETACH(txq, txipsum, txq, i);
-               WM_Q_EVCNT_DETACH(txq, txtusum, txq, i);
-               WM_Q_EVCNT_DETACH(txq, txtusum6, txq, i);
-               WM_Q_EVCNT_DETACH(txq, txtso, txq, i);
-               WM_Q_EVCNT_DETACH(txq, txtso6, txq, i);
-               WM_Q_EVCNT_DETACH(txq, txtsopain, txq, i);
+               WM_Q_EVCNT_DETACH(txq, ipsum, txq, i);
+               WM_Q_EVCNT_DETACH(txq, tusum, txq, i);
+               WM_Q_EVCNT_DETACH(txq, tusum6, txq, i);
+               WM_Q_EVCNT_DETACH(txq, tso, txq, i);
+               WM_Q_EVCNT_DETACH(txq, tso6, txq, i);
+               WM_Q_EVCNT_DETACH(txq, tsopain, txq, i);
 
                for (j = 0; j < WM_NTXSEGS; j++)
                        evcnt_detach(&txq->txq_ev_txseg[j]);
 
-               WM_Q_EVCNT_DETACH(txq, txdrop, txq, i);
-               WM_Q_EVCNT_DETACH(txq, tu, txq, i);
+               WM_Q_EVCNT_DETACH(txq, pcqdrop, txq, i);
+               WM_Q_EVCNT_DETACH(txq, descdrop, txq, i);
+               WM_Q_EVCNT_DETACH(txq, underrun, txq, i);
 #endif /* WM_EVENT_COUNTERS */
 
                /* drain txq_interq */
@@ -6939,7 +6941,7 @@
                         */
                        struct tcphdr th;
 
-                       WM_Q_EVCNT_INCR(txq, txtsopain);
+                       WM_Q_EVCNT_INCR(txq, tsopain);
 
                        m_copydata(m0, hlen, sizeof(th), &th);
                        if (v4) {
@@ -6995,10 +6997,10 @@
                }
 
                if (v4) {
-                       WM_Q_EVCNT_INCR(txq, txtso);
+                       WM_Q_EVCNT_INCR(txq, tso);
                        cmdlen |= WTX_TCPIP_CMD_IP;
                } else {
-                       WM_Q_EVCNT_INCR(txq, txtso6);
+                       WM_Q_EVCNT_INCR(txq, tso6);
                        ipcse = 0;
                }
                cmd |= WTX_TCPIP_CMD_TSE;
@@ -7018,7 +7020,7 @@
            WTX_TCPIP_IPCSO(offset + offsetof(struct ip, ip_sum)) |
            WTX_TCPIP_IPCSE(ipcse);
        if (m0->m_pkthdr.csum_flags & (M_CSUM_IPv4 | M_CSUM_TSOv4)) {
-               WM_Q_EVCNT_INCR(txq, txipsum);
+               WM_Q_EVCNT_INCR(txq, ipsum);
                fields |= WTX_IXSM;
        }
 
@@ -7026,7 +7028,7 @@
 
        if (m0->m_pkthdr.csum_flags &
            (M_CSUM_TCPv4 | M_CSUM_UDPv4 | M_CSUM_TSOv4)) {
-               WM_Q_EVCNT_INCR(txq, txtusum);
+               WM_Q_EVCNT_INCR(txq, tusum);
                fields |= WTX_TXSM;
                tucs = WTX_TCPIP_TUCSS(offset) |
                    WTX_TCPIP_TUCSO(offset +
@@ -7034,7 +7036,7 @@
                    WTX_TCPIP_TUCSE(0) /* rest of packet */;
        } else if ((m0->m_pkthdr.csum_flags &
            (M_CSUM_TCPv6 | M_CSUM_UDPv6 | M_CSUM_TSOv6)) != 0) {
-               WM_Q_EVCNT_INCR(txq, txtusum6);
+               WM_Q_EVCNT_INCR(txq, tusum6);
                fields |= WTX_TXSM;
                tucs = WTX_TCPIP_TUCSS(offset) |
                    WTX_TCPIP_TUCSO(offset +
@@ -7131,7 +7133,7 @@
 
        if (__predict_false(!pcq_put(txq->txq_interq, m))) {
                m_freem(m);
-               WM_Q_EVCNT_INCR(txq, txdrop);
+               WM_Q_EVCNT_INCR(txq, pcqdrop);
                return ENOBUFS;
        }
 
@@ -7248,7 +7250,7 @@
                    BUS_DMA_WRITE | BUS_DMA_NOWAIT);
                if (error) {
                        if (error == EFBIG) {
-                               WM_Q_EVCNT_INCR(txq, txdrop);
+                               WM_Q_EVCNT_INCR(txq, descdrop);
                                log(LOG_ERR, "%s: Tx packet consumes too many "
                                    "DMA segments, dropping...\n",
                                    device_xname(sc->sc_dev));
@@ -7310,7 +7312,7 @@
                                ifp->if_flags |= IFF_OACTIVE;
                        txq->txq_flags |= WM_TXQ_NO_SPACE;
                        bus_dmamap_unload(sc->sc_dmat, dmamap);
-                       WM_Q_EVCNT_INCR(txq, txfifo_stall);
+                       WM_Q_EVCNT_INCR(txq, fifo_stall);
                        break;
                }
 
@@ -7455,7 +7457,7 @@
                if (!is_transmit)
                        ifp->if_flags |= IFF_OACTIVE;
                txq->txq_flags |= WM_TXQ_NO_SPACE;
-               WM_Q_EVCNT_INCR(txq, txdrop);
+               WM_Q_EVCNT_INCR(txq, descdrop);
                DPRINTF(WM_DEBUG_TX, ("%s: TX: error after IFQ_DEQUEUE\n",
                        __func__));
                m_freem(m0);
@@ -7551,7 +7553,7 @@
                         */
                        struct tcphdr th;
 
-                       WM_Q_EVCNT_INCR(txq, txtsopain);
+                       WM_Q_EVCNT_INCR(txq, tsopain);
 
                        m_copydata(m0, hlen, sizeof(th), &th);
                        if (v4) {
@@ -7609,10 +7611,10 @@
                *cmdlenp |= NQTX_CMD_TSE;
 
                if (v4) {
-                       WM_Q_EVCNT_INCR(txq, txtso);
+                       WM_Q_EVCNT_INCR(txq, tso);
                        *fieldsp |= NQTXD_FIELDS_IXSM | NQTXD_FIELDS_TUXSM;
                } else {
-                       WM_Q_EVCNT_INCR(txq, txtso6);
+                       WM_Q_EVCNT_INCR(txq, tso6);
                        *fieldsp |= NQTXD_FIELDS_TUXSM;
                }
                *fieldsp |= ((m0->m_pkthdr.len - hlen) << NQTXD_FIELDS_PAYLEN_SHIFT);
@@ -7633,7 +7635,7 @@
 
        if (m0->m_pkthdr.csum_flags &
            (M_CSUM_UDPv4 | M_CSUM_TCPv4 | M_CSUM_TSOv4)) {
-               WM_Q_EVCNT_INCR(txq, txtusum);
+               WM_Q_EVCNT_INCR(txq, tusum);
                if (m0->m_pkthdr.csum_flags & (M_CSUM_TCPv4 | M_CSUM_TSOv4)) {
                        cmdc |= NQTXC_CMD_TCP;
                } else {
@@ -7644,7 +7646,7 @@
        }
        if (m0->m_pkthdr.csum_flags &
            (M_CSUM_UDPv6 | M_CSUM_TCPv6 | M_CSUM_TSOv6)) {
-               WM_Q_EVCNT_INCR(txq, txtusum6);



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