Author: marius
Date: Mon May  6 20:56:41 2019
New Revision: 347211
URL: https://svnweb.freebsd.org/changeset/base/347211

Log:
  - Remove the unused ifc_link_irq and ifc_mtx_name members of struct iflib_ctx.
  - Remove the only ever written to ift_db_mtx_name member of struct iflib_txq.
  - Remove the unused or only ever written to ifr_size, ifr_cq_pidx, ifr_cq_gen
    and ifr_lro_enabled members of struct iflib_rxq.
  - Consistently spell DMA, RX and TX uppercase in comments, messages etc.
    instead of mixing with some lowercase variants.
  - Consistently use if_t instead of a mix of if_t and struct ifnet pointers.
  - Bring the function comments of _iflib_fl_refill(), iflib_rx_sds_free() and
    iflib_fl_setup() in line with reality.
  - Judging problem reports, people are wondering what on earth messages like:
    "TX(0) desc avail = 1024, pidx = 0"
    are trying to indicate. Thus, extend this string to be more like that of
    non-iflib(4) Ethernet MAC drivers, notifying about a watchdog timeout due
    to which the interface will be reset.
  - Take advantage of the M_HAS_VLANTAG macro.
  - Use false/true rather than FALSE/TRUE for variables of type bool.
  - Use FALLTHROUGH as advocated by style(9).

Modified:
  head/sys/net/iflib.c
  head/sys/net/iflib.h
  head/sys/net/iflib_clone.c

Modified: head/sys/net/iflib.c
==============================================================================
--- head/sys/net/iflib.c        Mon May  6 20:48:27 2019        (r347210)
+++ head/sys/net/iflib.c        Mon May  6 20:56:41 2019        (r347211)
@@ -172,7 +172,6 @@ struct iflib_ctx {
        uint32_t ifc_rx_mbuf_sz;
 
        int ifc_link_state;
-       int ifc_link_irq;
        int ifc_watchdog_events;
        struct cdev *ifc_led_dev;
        struct resource *ifc_msix_mem;
@@ -210,10 +209,8 @@ struct iflib_ctx {
        eventhandler_tag ifc_vlan_attach_event;
        eventhandler_tag ifc_vlan_detach_event;
        struct ether_addr ifc_mac;
-       char ifc_mtx_name[16];
 };
 
-
 void *
 iflib_get_softc(if_ctx_t ctx)
 {
@@ -289,7 +286,6 @@ typedef struct iflib_sw_tx_desc_array {
        struct mbuf    **ifsd_m;           /* pkthdr mbufs */
 } if_txsd_vec_t;
 
-
 /* magic number that should be high enough for any hardware */
 #define IFLIB_MAX_TX_SEGS              128
 #define IFLIB_RX_COPY_THRESH           128
@@ -308,10 +304,10 @@ typedef struct iflib_sw_tx_desc_array {
 
 #define IFLIB_RESTART_BUDGET           8
 
-
 #define CSUM_OFFLOAD           (CSUM_IP_TSO|CSUM_IP6_TSO|CSUM_IP| \
                                 CSUM_IP_UDP|CSUM_IP_TCP|CSUM_IP_SCTP| \
                                 CSUM_IP6_UDP|CSUM_IP6_TCP|CSUM_IP6_SCTP)
+
 struct iflib_txq {
        qidx_t          ift_in_use;
        qidx_t          ift_cidx;
@@ -361,7 +357,6 @@ struct iflib_txq {
        iflib_dma_info_t        ift_ifdi;
 #define MTX_NAME_LEN 16
        char                    ift_mtx_name[MTX_NAME_LEN];
-       char                    ift_db_mtx_name[MTX_NAME_LEN];
        bus_dma_segment_t       ift_segs[IFLIB_MAX_TX_SEGS]  
__aligned(CACHE_LINE_SIZE);
 #ifdef IFLIB_DIAGNOSTICS
        uint64_t ift_cpu_exec_count[256];
@@ -424,25 +419,20 @@ get_inuse(int size, qidx_t cidx, qidx_t pidx, uint8_t 
        ((head) >= (tail) ? (head) - (tail) : (wrap) - (tail) + (head))
 
 struct iflib_rxq {
-       /* If there is a separate completion queue -
-        * these are the cq cidx and pidx. Otherwise
-        * these are unused.
-        */
-       qidx_t          ifr_size;
-       qidx_t          ifr_cq_cidx;
-       qidx_t          ifr_cq_pidx;
-       uint8_t         ifr_cq_gen;
-       uint8_t         ifr_fl_offset;
-
        if_ctx_t        ifr_ctx;
        iflib_fl_t      ifr_fl;
        uint64_t        ifr_rx_irq;
        struct pfil_head        *pfil;
+       /*
+        * If there is a separate completion queue (IFLIB_HAS_RXCQ), this is
+        * the command queue consumer index.  Otherwise it's unused.
+        */
+       qidx_t          ifr_cq_cidx;
        uint16_t        ifr_id;
-       uint8_t         ifr_lro_enabled;
        uint8_t         ifr_nfl;
        uint8_t         ifr_ntxqirq;
        uint8_t         ifr_txqid[IFLIB_MAX_TX_SHARED_INTR];
+       uint8_t         ifr_fl_offset;
        struct lro_ctrl                 ifr_lc;
        struct grouptask        ifr_task;
        struct iflib_filter_info ifr_filter_info;
@@ -540,14 +530,11 @@ rxd_info_zero(if_rxd_info_t ri)
 #define CTX_UNLOCK(ctx) sx_xunlock(&(ctx)->ifc_ctx_sx)
 #define CTX_LOCK_DESTROY(ctx) sx_destroy(&(ctx)->ifc_ctx_sx)
 
-
 #define STATE_LOCK_INIT(_sc, _name)  mtx_init(&(_sc)->ifc_state_mtx, _name, 
"iflib state lock", MTX_DEF)
 #define STATE_LOCK(ctx) mtx_lock(&(ctx)->ifc_state_mtx)
 #define STATE_UNLOCK(ctx) mtx_unlock(&(ctx)->ifc_state_mtx)
 #define STATE_LOCK_DESTROY(ctx) mtx_destroy(&(ctx)->ifc_state_mtx)
 
-
-
 #define CALLOUT_LOCK(txq)      mtx_lock(&txq->ift_mtx)
 #define CALLOUT_UNLOCK(txq)    mtx_unlock(&txq->ift_mtx)
 
@@ -610,15 +597,15 @@ static int iflib_fl_refills_large;
 static int iflib_tx_frees;
 
 SYSCTL_INT(_net_iflib, OID_AUTO, tx_seen, CTLFLAG_RD,
-                  &iflib_tx_seen, 0, "# tx mbufs seen");
+                  &iflib_tx_seen, 0, "# TX mbufs seen");
 SYSCTL_INT(_net_iflib, OID_AUTO, tx_sent, CTLFLAG_RD,
-                  &iflib_tx_sent, 0, "# tx mbufs sent");
+                  &iflib_tx_sent, 0, "# TX mbufs sent");
 SYSCTL_INT(_net_iflib, OID_AUTO, tx_encap, CTLFLAG_RD,
-                  &iflib_tx_encap, 0, "# tx mbufs encapped");
+                  &iflib_tx_encap, 0, "# TX mbufs encapped");
 SYSCTL_INT(_net_iflib, OID_AUTO, tx_frees, CTLFLAG_RD,
-                  &iflib_tx_frees, 0, "# tx frees");
+                  &iflib_tx_frees, 0, "# TX frees");
 SYSCTL_INT(_net_iflib, OID_AUTO, rx_allocs, CTLFLAG_RD,
-                  &iflib_rx_allocs, 0, "# rx allocations");
+                  &iflib_rx_allocs, 0, "# RX allocations");
 SYSCTL_INT(_net_iflib, OID_AUTO, fl_refills, CTLFLAG_RD,
                   &iflib_fl_refills, 0, "# refills");
 SYSCTL_INT(_net_iflib, OID_AUTO, fl_refills_large, CTLFLAG_RD,
@@ -664,7 +651,7 @@ static int iflib_verbose_debug;
 SYSCTL_INT(_net_iflib, OID_AUTO, task_fn_rx, CTLFLAG_RD,
                   &iflib_task_fn_rxs, 0, "# task_fn_rx calls");
 SYSCTL_INT(_net_iflib, OID_AUTO, rx_intr_enables, CTLFLAG_RD,
-                  &iflib_rx_intr_enables, 0, "# rx intr enables");
+                  &iflib_rx_intr_enables, 0, "# RX intr enables");
 SYSCTL_INT(_net_iflib, OID_AUTO, fast_intrs, CTLFLAG_RD,
                   &iflib_fast_intrs, 0, "# fast_intr calls");
 SYSCTL_INT(_net_iflib, OID_AUTO, rx_unavail, CTLFLAG_RD,
@@ -768,13 +755,13 @@ SYSCTL_DECL(_dev_netmap);
 
 int iflib_crcstrip = 1;
 SYSCTL_INT(_dev_netmap, OID_AUTO, iflib_crcstrip,
-    CTLFLAG_RW, &iflib_crcstrip, 1, "strip CRC on rx frames");
+    CTLFLAG_RW, &iflib_crcstrip, 1, "strip CRC on RX frames");
 
 int iflib_rx_miss, iflib_rx_miss_bufs;
 SYSCTL_INT(_dev_netmap, OID_AUTO, iflib_rx_miss,
-    CTLFLAG_RW, &iflib_rx_miss, 0, "potentially missed rx intr");
+    CTLFLAG_RW, &iflib_rx_miss, 0, "potentially missed RX intr");
 SYSCTL_INT(_dev_netmap, OID_AUTO, iflib_rx_miss_bufs,
-    CTLFLAG_RW, &iflib_rx_miss_bufs, 0, "potentially missed rx intr bufs");
+    CTLFLAG_RW, &iflib_rx_miss_bufs, 0, "potentially missed RX intr bufs");
 
 /*
  * Register/unregister. We are already under netmap lock.
@@ -783,7 +770,7 @@ SYSCTL_INT(_dev_netmap, OID_AUTO, iflib_rx_miss_bufs,
 static int
 iflib_netmap_register(struct netmap_adapter *na, int onoff)
 {
-       struct ifnet *ifp = na->ifp;
+       if_t ifp = na->ifp;
        if_ctx_t ctx = ifp->if_softc;
        int status;
 
@@ -913,7 +900,7 @@ static int
 iflib_netmap_txsync(struct netmap_kring *kring, int flags)
 {
        struct netmap_adapter *na = kring->na;
-       struct ifnet *ifp = na->ifp;
+       if_t ifp = na->ifp;
        struct netmap_ring *ring = kring->ring;
        u_int nm_i;     /* index into the netmap kring */
        u_int nic_i;    /* index into the NIC ring */
@@ -1061,6 +1048,7 @@ iflib_netmap_rxsync(struct netmap_kring *kring, int fl
 {
        struct netmap_adapter *na = kring->na;
        struct netmap_ring *ring = kring->ring;
+       if_t ifp = na->ifp;
        iflib_fl_t fl;
        uint32_t nm_i;  /* index into the netmap ring */
        uint32_t nic_i; /* index into the NIC ring */
@@ -1070,7 +1058,6 @@ iflib_netmap_rxsync(struct netmap_kring *kring, int fl
        int force_update = (flags & NAF_FORCE_READ) || kring->nr_kflags & 
NKR_PENDINTR;
        struct if_rxd_info ri;
 
-       struct ifnet *ifp = na->ifp;
        if_ctx_t ctx = ifp->if_softc;
        iflib_rxq_t rxq = &ctx->ifc_rxqs[kring->ring_id];
        if (head > lim)
@@ -1154,8 +1141,7 @@ iflib_netmap_rxsync(struct netmap_kring *kring, int fl
 static void
 iflib_netmap_intr(struct netmap_adapter *na, int onoff)
 {
-       struct ifnet *ifp = na->ifp;
-       if_ctx_t ctx = ifp->if_softc;
+       if_ctx_t ctx = na->ifp->if_softc;
 
        CTX_LOCK(ctx);
        if (onoff) {
@@ -1929,13 +1915,13 @@ _rxq_refill_cb(void *arg, bus_dma_segment_t *segs, int
 }
 
 /**
- *     rxq_refill - refill an rxq  free-buffer list
- *     @ctx: the iflib context
- *     @rxq: the free-list to refill
- *     @n: the number of new buffers to allocate
+ * _iflib_fl_refill - refill an rxq free-buffer list
+ * @ctx: the iflib context
+ * @fl: the free list to refill
+ * @count: the number of new buffers to allocate
  *
- *     (Re)populate an rxq free-buffer list with up to @n new packet buffers.
- *     The caller must assure that @n does not exceed the queue's capacity.
+ * (Re)populate an rxq free-buffer list with up to @count new packet buffers.
+ * The caller must assure that @count does not exceed the queue's capacity.
  */
 static void
 _iflib_fl_refill(if_ctx_t ctx, iflib_fl_t fl, int count)
@@ -2088,6 +2074,7 @@ uint8_t
 iflib_in_detach(if_ctx_t ctx)
 {
        bool in_detach;
+
        STATE_LOCK(ctx);
        in_detach = !!(ctx->ifc_flags & IFC_IN_DETACH);
        STATE_UNLOCK(ctx);
@@ -2145,7 +2132,7 @@ iflib_fl_bufs_free(iflib_fl_t fl)
 
 /*********************************************************************
  *
- *  Initialize a receive ring and its buffers.
+ *  Initialize a free list and its buffers.
  *
  **********************************************************************/
 static int
@@ -2228,13 +2215,12 @@ iflib_rx_sds_free(iflib_rxq_t rxq)
                }
                free(rxq->ifr_fl, M_IFLIB);
                rxq->ifr_fl = NULL;
-               rxq->ifr_cq_gen = rxq->ifr_cq_cidx = rxq->ifr_cq_pidx = 0;
+               rxq->ifr_cq_cidx = 0;
        }
 }
 
 /*
- * MI independent logic
- *
+ * Timer routine
  */
 static void
 iflib_timer(void *arg)
@@ -2247,6 +2233,7 @@ iflib_timer(void *arg)
 
        if (!(if_getdrvflags(ctx->ifc_ifp) & IFF_DRV_RUNNING))
                return;
+
        /*
        ** Check on the state of the TX queue(s), this
        ** can be done without the lock because its RO
@@ -2276,9 +2263,11 @@ iflib_timer(void *arg)
        if (if_getdrvflags(ctx->ifc_ifp) & IFF_DRV_RUNNING) 
                callout_reset_on(&txq->ift_timer, reset_on, iflib_timer, txq, 
txq->ift_timer.c_cpu);
        return;
+
  hung:
-       device_printf(ctx->ifc_dev,  "TX(%d) desc avail = %d, pidx = %d\n",
-                                 txq->ift_id, TXQ_AVAIL(txq), txq->ift_pidx);
+       device_printf(ctx->ifc_dev,
+           "Watchdog timeout (TX: %d desc avail: %d pidx: %d) -- resetting\n",
+           txq->ift_id, TXQ_AVAIL(txq), txq->ift_pidx);
        STATE_LOCK(ctx);
        if_setdrvflagbits(ctx->ifc_ifp, IFF_DRV_OACTIVE, IFF_DRV_RUNNING);
        ctx->ifc_flags |= (IFC_DO_WATCHDOG|IFC_DO_RESET);
@@ -2304,6 +2293,7 @@ iflib_calc_rx_mbuf_sz(if_ctx_t ctx)
 uint32_t
 iflib_get_rx_mbuf_sz(if_ctx_t ctx)
 {
+
        return (ctx->ifc_rx_mbuf_sz);
 }
 
@@ -2318,7 +2308,6 @@ iflib_init_locked(if_ctx_t ctx)
        iflib_rxq_t rxq;
        int i, j, tx_ip_csum_flags, tx_ip6_csum_flags;
 
-
        if_setdrvflagbits(ifp, IFF_DRV_OACTIVE, IFF_DRV_RUNNING);
        IFDI_INTR_DISABLE(ctx);
 
@@ -2447,7 +2436,7 @@ iflib_stop(if_ctx_t ctx)
        for (i = 0; i < scctx->isc_nrxqsets; i++, rxq++) {
                /* make sure all transmitters have completed before proceeding 
XXX */
 
-               rxq->ifr_cq_gen = rxq->ifr_cq_cidx = rxq->ifr_cq_pidx = 0;
+               rxq->ifr_cq_cidx = 0;
                for (j = 0, di = rxq->ifr_ifdi; j < sctx->isc_nrxqs; j++, di++)
                        bzero((void *)di->idi_vaddr, di->idi_size);
                /* also resets the free lists pidx/cidx */
@@ -2733,6 +2722,7 @@ iflib_get_ip_forwarding(struct lro_ctrl *lc __unused, 
 static bool
 iflib_rxeof(iflib_rxq_t rxq, qidx_t budget)
 {
+       if_t ifp;
        if_ctx_t ctx = rxq->ifr_ctx;
        if_shared_ctx_t sctx = ctx->ifc_sctx;
        if_softc_ctx_t scctx = &ctx->ifc_softc_ctx;
@@ -2741,7 +2731,6 @@ iflib_rxeof(iflib_rxq_t rxq, qidx_t budget)
        struct if_rxd_info ri;
        int err, budget_left, rx_bytes, rx_pkts;
        iflib_fl_t fl;
-       struct ifnet *ifp;
        int lro_enabled;
        bool v4_forwarding, v6_forwarding, lro_possible;
 
@@ -2792,10 +2781,8 @@ iflib_rxeof(iflib_rxq_t rxq, qidx_t budget)
                        *cidxp = ri.iri_cidx;
                        /* Update our consumer index */
                        /* XXX NB: shurd - check if this is still safe */
-                       while (rxq->ifr_cq_cidx >= scctx->isc_nrxd[0]) {
+                       while (rxq->ifr_cq_cidx >= scctx->isc_nrxd[0])
                                rxq->ifr_cq_cidx -= scctx->isc_nrxd[0];
-                               rxq->ifr_cq_gen = 0;
-                       }
                        /* was this only a completion queue message? */
                        if (__predict_false(ri.iri_nfrags == 0))
                                continue;
@@ -3311,7 +3298,7 @@ iflib_encap(iflib_txq_t txq, struct mbuf **m_headp)
        pi.ipi_qsidx = txq->ift_id;
        pi.ipi_len = m_head->m_pkthdr.len;
        pi.ipi_csum_flags = m_head->m_pkthdr.csum_flags;
-       pi.ipi_vtag = (m_head->m_flags & M_VLANTAG) ? 
m_head->m_pkthdr.ether_vtag : 0;
+       pi.ipi_vtag = M_HAS_VLANTAG(m_head) ? m_head->m_pkthdr.ether_vtag : 0;
 
        /* deliberate bitwise OR to make one condition */
        if (__predict_true((pi.ipi_csum_flags | pi.ipi_vtag))) {
@@ -3584,7 +3571,7 @@ iflib_txq_drain(struct ifmp_ring *r, uint32_t cidx, ui
 {
        iflib_txq_t txq = r->cookie;
        if_ctx_t ctx = txq->ift_ctx;
-       struct ifnet *ifp = ctx->ifc_ifp;
+       if_t ifp = ctx->ifc_ifp;
        struct mbuf **mp, *m;
        int i, count, consumed, pkt_sent, bytes_sent, mcast_sent, avail;
        int reclaimed, err, in_use_prev, desc_used;
@@ -4099,18 +4086,18 @@ iflib_if_ioctl(if_t ifp, u_long command, caddr_t data)
 #if defined(INET) || defined(INET6)
        struct ifaddr   *ifa = (struct ifaddr *)data;
 #endif
-       bool            avoid_reset = FALSE;
+       bool            avoid_reset = false;
        int             err = 0, reinit = 0, bits;
 
        switch (command) {
        case SIOCSIFADDR:
 #ifdef INET
                if (ifa->ifa_addr->sa_family == AF_INET)
-                       avoid_reset = TRUE;
+                       avoid_reset = true;
 #endif
 #ifdef INET6
                if (ifa->ifa_addr->sa_family == AF_INET6)
-                       avoid_reset = TRUE;
+                       avoid_reset = true;
 #endif
                /*
                ** Calling init results in link renegotiation,
@@ -4182,7 +4169,7 @@ iflib_if_ioctl(if_t ifp, u_long command, caddr_t data)
                CTX_LOCK(ctx);
                IFDI_MEDIA_SET(ctx);
                CTX_UNLOCK(ctx);
-               /* falls thru */
+               /* FALLTHROUGH */
        case SIOCGIFMEDIA:
        case SIOCGIFXMEDIA:
                err = ifmedia_ioctl(ifp, ifr, ctx->ifc_mediap, command);
@@ -4604,12 +4591,13 @@ iflib_device_register(device_t dev, void *sc, if_share
        main_rxq = (sctx->isc_flags & IFLIB_HAS_RXCQ) ? 1 : 0;
 
        /* XXX change for per-queue sizes */
-       device_printf(dev, "Using %d tx descriptors and %d rx descriptors\n",
+       device_printf(dev, "Using %d TX descriptors and %d RX descriptors\n",
            scctx->isc_ntxd[main_txq], scctx->isc_nrxd[main_rxq]);
        for (i = 0; i < sctx->isc_nrxqs; i++) {
                if (!powerof2(scctx->isc_nrxd[i])) {
                        /* round down instead? */
-                       device_printf(dev, "# rx descriptors must be a power of 
2\n");
+                       device_printf(dev,
+                           "# RX descriptors must be a power of 2\n");
                        err = EINVAL;
                        goto fail_iflib_detach;
                }
@@ -4617,7 +4605,7 @@ iflib_device_register(device_t dev, void *sc, if_share
        for (i = 0; i < sctx->isc_ntxqs; i++) {
                if (!powerof2(scctx->isc_ntxd[i])) {
                        device_printf(dev,
-                           "# tx descriptors must be a power of 2");
+                           "# TX descriptors must be a power of 2");
                        err = EINVAL;
                        goto fail_iflib_detach;
                }
@@ -4871,12 +4859,13 @@ iflib_pseudo_register(device_t dev, if_shared_ctx_t sc
        main_rxq = (sctx->isc_flags & IFLIB_HAS_RXCQ) ? 1 : 0;
 
        /* XXX change for per-queue sizes */
-       device_printf(dev, "Using %d tx descriptors and %d rx descriptors\n",
+       device_printf(dev, "Using %d TX descriptors and %d RX descriptors\n",
            scctx->isc_ntxd[main_txq], scctx->isc_nrxd[main_rxq]);
        for (i = 0; i < sctx->isc_nrxqs; i++) {
                if (!powerof2(scctx->isc_nrxd[i])) {
                        /* round down instead? */
-                       device_printf(dev, "# rx descriptors must be a power of 
2\n");
+                       device_printf(dev,
+                           "# RX descriptors must be a power of 2\n");
                        err = EINVAL;
                        goto fail_iflib_detach;
                }
@@ -4884,7 +4873,7 @@ iflib_pseudo_register(device_t dev, if_shared_ctx_t sc
        for (i = 0; i < sctx->isc_ntxqs; i++) {
                if (!powerof2(scctx->isc_ntxd[i])) {
                        device_printf(dev,
-                           "# tx descriptors must be a power of 2");
+                           "# TX descriptors must be a power of 2");
                        err = EINVAL;
                        goto fail_iflib_detach;
                }
@@ -5447,14 +5436,11 @@ iflib_queues_alloc(if_ctx_t ctx)
                }
 
                /* Initialize the TX lock */
-               snprintf(txq->ift_mtx_name, MTX_NAME_LEN, "%s:tx(%d):callout",
+               snprintf(txq->ift_mtx_name, MTX_NAME_LEN, "%s:TX(%d):callout",
                    device_get_nameunit(dev), txq->ift_id);
                mtx_init(&txq->ift_mtx, txq->ift_mtx_name, NULL, MTX_DEF);
                callout_init_mtx(&txq->ift_timer, &txq->ift_mtx, 0);
 
-               snprintf(txq->ift_db_mtx_name, MTX_NAME_LEN, "%s:tx(%d):db",
-                        device_get_nameunit(dev), txq->ift_id);
-
                err = ifmp_ring_alloc(&txq->ift_br, 2048, txq, iflib_txq_drain,
                                      iflib_txq_can_drain, M_IFLIB, M_WAITOK);
                if (err) {
@@ -5634,7 +5620,6 @@ iflib_rx_structures_setup(if_ctx_t ctx)
                        device_printf(ctx->ifc_dev, "LRO Initialization 
failed!\n");
                        goto fail;
                }
-               rxq->ifr_lro_enabled = TRUE;
 #endif
                IFDI_RXQ_SETUP(ctx, rxq->ifr_id);
        }
@@ -5649,7 +5634,7 @@ fail:
        rxq = ctx->ifc_rxqs;
        for (i = 0; i < q; ++i, rxq++) {
                iflib_rx_sds_free(rxq);
-               rxq->ifr_cq_gen = rxq->ifr_cq_cidx = rxq->ifr_cq_pidx = 0;
+               rxq->ifr_cq_cidx = 0;
        }
        return (err);
 #endif
@@ -6278,8 +6263,8 @@ iflib_msix_init(if_ctx_t ctx)
                rx_queues = min(rx_queues, tx_queues);
        }
 
-       device_printf(dev, "Using %d rx queues %d tx queues\n",
-           rx_queues, tx_queues);
+       device_printf(dev, "Using %d RX queues %d TX queues\n", rx_queues,
+           tx_queues);
 
        vectors = rx_queues + admincnt;
        if ((err = pci_alloc_msix(dev, &vectors)) == 0) {
@@ -6433,10 +6418,10 @@ iflib_add_device_sysctl_pre(if_ctx_t ctx)
                       "disable MSI-X (default 0)");
        SYSCTL_ADD_U16(ctx_list, oid_list, OID_AUTO, "rx_budget",
                       CTLFLAG_RWTUN, &ctx->ifc_sysctl_rx_budget, 0,
-                       "set the rx budget");
+                      "set the RX budget");
        SYSCTL_ADD_U16(ctx_list, oid_list, OID_AUTO, "tx_abdicate",
                       CTLFLAG_RWTUN, &ctx->ifc_sysctl_tx_abdicate, 0,
-                      "cause tx to abdicate instead of running to completion");
+                      "cause TX to abdicate instead of running to completion");
        ctx->ifc_sysctl_core_offset = CORE_OFFSET_UNSPECIFIED;
        SYSCTL_ADD_U16(ctx_list, oid_list, OID_AUTO, "core_offset",
                       CTLFLAG_RDTUN, &ctx->ifc_sysctl_core_offset, 0,
@@ -6449,11 +6434,11 @@ iflib_add_device_sysctl_pre(if_ctx_t ctx)
        SYSCTL_ADD_PROC(ctx_list, oid_list, OID_AUTO, "override_ntxds",
                       CTLTYPE_STRING|CTLFLAG_RWTUN, ctx, IFLIB_NTXD_HANDLER,
                        mp_ndesc_handler, "A",
-                       "list of # of tx descriptors to use, 0 = use default 
#");
+                      "list of # of TX descriptors to use, 0 = use default #");
        SYSCTL_ADD_PROC(ctx_list, oid_list, OID_AUTO, "override_nrxds",
                       CTLTYPE_STRING|CTLFLAG_RWTUN, ctx, IFLIB_NRXD_HANDLER,
                        mp_ndesc_handler, "A",
-                       "list of # of rx descriptors to use, 0 = use default 
#");
+                      "list of # of RX descriptors to use, 0 = use default #");
 }
 
 static void
@@ -6510,7 +6495,7 @@ iflib_add_device_sysctl_post(if_ctx_t ctx)
                                   &txq->ift_no_desc_avail, "# of times no 
descriptors were available");
                SYSCTL_ADD_QUAD(ctx_list, queue_list, OID_AUTO, "tx_map_failed",
                                   CTLFLAG_RD,
-                                  &txq->ift_map_failed, "# of times dma map 
failed");
+                                  &txq->ift_map_failed, "# of times DMA map 
failed");
                SYSCTL_ADD_QUAD(ctx_list, queue_list, OID_AUTO, 
"txd_encap_efbig",
                                   CTLFLAG_RD,
                                   &txq->ift_txd_encap_efbig, "# of times 
txd_encap returned EFBIG");
@@ -6570,9 +6555,6 @@ iflib_add_device_sysctl_post(if_ctx_t ctx)
                                             CTLFLAG_RD, NULL, "Queue Name");
                queue_list = SYSCTL_CHILDREN(queue_node);
                if (sctx->isc_flags & IFLIB_HAS_RXCQ) {
-                       SYSCTL_ADD_U16(ctx_list, queue_list, OID_AUTO, 
"rxq_cq_pidx",
-                                      CTLFLAG_RD,
-                                      &rxq->ifr_cq_pidx, 1, "Producer Index");
                        SYSCTL_ADD_U16(ctx_list, queue_list, OID_AUTO, 
"rxq_cq_cidx",
                                       CTLFLAG_RD,
                                       &rxq->ifr_cq_cidx, 1, "Consumer Index");
@@ -6650,7 +6632,7 @@ iflib_fixup_rx(struct mbuf *m)
 
 #ifdef NETDUMP
 static void
-iflib_netdump_init(struct ifnet *ifp, int *nrxr, int *ncl, int *clsize)
+iflib_netdump_init(if_t ifp, int *nrxr, int *ncl, int *clsize)
 {
        if_ctx_t ctx;
 
@@ -6663,7 +6645,7 @@ iflib_netdump_init(struct ifnet *ifp, int *nrxr, int *
 }
 
 static void
-iflib_netdump_event(struct ifnet *ifp, enum netdump_ev event)
+iflib_netdump_event(if_t ifp, enum netdump_ev event)
 {
        if_ctx_t ctx;
        if_softc_ctx_t scctx;
@@ -6691,7 +6673,7 @@ iflib_netdump_event(struct ifnet *ifp, enum netdump_ev
 }
 
 static int
-iflib_netdump_transmit(struct ifnet *ifp, struct mbuf *m)
+iflib_netdump_transmit(if_t ifp, struct mbuf *m)
 {
        if_ctx_t ctx;
        iflib_txq_t txq;
@@ -6710,7 +6692,7 @@ iflib_netdump_transmit(struct ifnet *ifp, struct mbuf 
 }
 
 static int
-iflib_netdump_poll(struct ifnet *ifp, int count)
+iflib_netdump_poll(if_t ifp, int count)
 {
        if_ctx_t ctx;
        if_softc_ctx_t scctx;

Modified: head/sys/net/iflib.h
==============================================================================
--- head/sys/net/iflib.h        Mon May  6 20:48:27 2019        (r347210)
+++ head/sys/net/iflib.h        Mon May  6 20:56:41 2019        (r347211)
@@ -79,7 +79,7 @@ typedef struct if_rxd_info {
        /* XXX redundant with the new irf_len field */
        uint16_t iri_len;               /* packet length */
        qidx_t iri_cidx;                /* consumer index of cq */
-       struct ifnet *iri_ifp;          /* some drivers >1 interface per softc 
*/
+       if_t iri_ifp;                   /* driver may have >1 iface per softc */
 
        /* updated by driver */
        if_rxd_frag_t iri_frags;

Modified: head/sys/net/iflib_clone.c
==============================================================================
--- head/sys/net/iflib_clone.c  Mon May  6 20:48:27 2019        (r347210)
+++ head/sys/net/iflib_clone.c  Mon May  6 20:56:41 2019        (r347211)
@@ -153,16 +153,18 @@ iflib_ip_insert(if_pseudo_t ip)
 }
 
 static void
-iflib_ifdetach(void *arg __unused, struct ifnet *ifp)
+iflib_ifdetach(void *arg __unused, if_t ifp)
 {
+
        /* If the ifnet is just being renamed, don't do anything. */
        if (ifp->if_flags & IFF_RENAMING)
                return;
 }
 
 static void
-iflib_iflladdr(void *arg __unused, struct ifnet *ifp)
+iflib_iflladdr(void *arg __unused, if_t ifp __unused)
 {
+
 }
 
 static int
@@ -218,15 +220,15 @@ iflib_clone_create(struct if_clone *ifc, int unit, cad
 }
 
 static void
-iflib_clone_destroy(struct ifnet *ifp)
+iflib_clone_destroy(if_t ifp)
 {
        if_ctx_t ctx;
        device_t dev;
        struct sx *ctx_lock;
        int rc;
+
        /*
         * Detach device / free / free unit 
-        *
         */
        ctx = if_getsoftc(ifp);
        dev = iflib_get_dev(ctx);
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