d/freebsd-nq
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Minor updates:

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- initialize ifq_drv_maxlen correctly
- mark the interface as jumbo capable
- keep stats on the number of times the hw transmit queue filled and
  was restarted.
This commit is contained in:
Andrew Gallatin 2007-01-30 08:39:44 +00:00
parent 940548361e
commit a82c2581b5
2 changed files with 20 additions and 3 deletions
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21
sys/dev/mxge/if_mxge.c
View File

@ -1023,6 +1023,8 @@ mxge_reset(mxge_softc_t *sc)
sc->tx.req = 0;
sc->tx.done = 0;
sc->tx.pkt_done = 0;
sc->tx.wake = 0;
sc->tx.stall = 0;
sc->rx_big.cnt = 0;
sc->rx_small.cnt = 0;
sc->rdma_tags_available = 15;
@ -1236,6 +1238,14 @@ mxge_add_sysctls(mxge_softc_t *sc)
"tx_pkt_done",
CTLFLAG_RD, &sc->tx.pkt_done,
0, "tx_done");
SYSCTL_ADD_INT(ctx, children, OID_AUTO,
"tx_stall",
CTLFLAG_RD, &sc->tx.stall,
0, "tx_stall");
SYSCTL_ADD_INT(ctx, children, OID_AUTO,
"tx_wake",
CTLFLAG_RD, &sc->tx.wake,
0, "tx_wake");
/* verbose printing? */
SYSCTL_ADD_INT(ctx, children, OID_AUTO,
@ -1676,7 +1686,10 @@ mxge_start_locked(mxge_softc_t *sc)
mxge_encap(sc, m);
}
/* ran out of transmit slots */
sc->ifp->if_drv_flags |= IFF_DRV_OACTIVE;
if ((sc->ifp->if_drv_flags & IFF_DRV_OACTIVE) == 0) {
sc->ifp->if_drv_flags |= IFF_DRV_OACTIVE;
sc->tx.stall++;
}
}
static void
@ -2021,6 +2034,7 @@ mxge_tx_done(mxge_softc_t *sc, uint32_t mcp_idx)
tx->req - tx->done < (tx->mask + 1)/4) {
mtx_lock(&sc->tx_lock);
ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
sc->tx.wake++;
mxge_start_locked(sc);
mtx_unlock(&sc->tx_lock);
}
@ -2213,8 +2227,8 @@ mxge_alloc_rings(mxge_softc_t *sc)
tx_ring_entries = tx_ring_size / sizeof (mcp_kreq_ether_send_t);
rx_ring_entries = rx_ring_size / sizeof (mcp_dma_addr_t);
sc->ifp->if_snd.ifq_drv_maxlen = sc->ifp->if_snd.ifq_maxlen;
IFQ_SET_MAXLEN(&sc->ifp->if_snd, tx_ring_entries - 1);
sc->ifp->if_snd.ifq_drv_maxlen = sc->ifp->if_snd.ifq_maxlen;
IFQ_SET_READY(&sc->ifp->if_snd);
sc->tx.mask = tx_ring_entries - 1;
@ -2866,7 +2880,8 @@ mxge_attach(device_t dev)
/* hook into the network stack */
if_initname(ifp, device_get_name(dev), device_get_unit(dev));
ifp->if_baudrate = 100000000;
ifp->if_capabilities = IFCAP_RXCSUM | IFCAP_TXCSUM | IFCAP_TSO4;
ifp->if_capabilities = IFCAP_RXCSUM | IFCAP_TXCSUM | IFCAP_TSO4 |
IFCAP_JUMBO_MTU;
ifp->if_hwassist = CSUM_TCP | CSUM_UDP | CSUM_TSO;
ifp->if_capenable = ifp->if_capabilities;
sc->csum_flag = 1;

2
sys/dev/mxge/if_mxge_var.h
View File

@ -106,6 +106,8 @@ typedef struct
int done; /* transmits completed */
int pkt_done; /* packets completed */
int boundary; /* boundary transmits cannot cross*/
int stall; /* #times hw queue exhausted */
int wake; /* #times irq re-enabled xmit */
} mxge_tx_buf_t;