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Use the new IFCAP_LRO to enable/disable LRO.

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This commit is contained in:
Andrew Gallatin 2007-06-12 19:15:16 +00:00
parent a85a378773
commit f04b33f842
1 changed files with 35 additions and 8 deletions
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43
sys/dev/mxge/if_mxge.c
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@ -95,6 +95,7 @@ static int mxge_intr_coal_delay = 30;
static int mxge_deassert_wait = 1;
static int mxge_flow_control = 1;
static int mxge_verbose = 0;
static int mxge_lro_cnt = 8;
static int mxge_ticks;
static char *mxge_fw_unaligned = "mxge_ethp_z8e";
static char *mxge_fw_aligned = "mxge_eth_z8e";
@ -1237,6 +1238,26 @@ mxge_change_flow_control(SYSCTL_HANDLER_ARGS)
return err;
}
static int
mxge_change_lro_locked(mxge_softc_t *sc, int lro_cnt)
{
struct ifnet *ifp;
int err;
ifp = sc->ifp;
if (lro_cnt == 0)
ifp->if_capenable &= ~IFCAP_LRO;
else
ifp->if_capenable |= IFCAP_LRO;
sc->lro_cnt = lro_cnt;
callout_stop(&sc->co_hdl);
mxge_close(sc);
err = mxge_open(sc);
if (err == 0)
callout_reset(&sc->co_hdl, mxge_ticks, mxge_tick, sc);
return err;
}
static int
mxge_change_lro(SYSCTL_HANDLER_ARGS)
{
@ -1257,12 +1278,7 @@ mxge_change_lro(SYSCTL_HANDLER_ARGS)
return EINVAL;
mtx_lock(&sc->driver_mtx);
sc->lro_cnt = lro_cnt;
callout_stop(&sc->co_hdl);
mxge_close(sc);
err = mxge_open(sc);
if (err == 0)
callout_reset(&sc->co_hdl, mxge_ticks, mxge_tick, sc);
err = mxge_change_lro_locked(sc, lro_cnt);
mtx_unlock(&sc->driver_mtx);
return err;
}
@ -3156,7 +3172,12 @@ mxge_ioctl(struct ifnet *ifp, u_long command, caddr_t data)
err = EINVAL;
}
}
if (mask & IFCAP_LRO) {
if (IFCAP_LRO & ifp->if_capenable)
err = mxge_change_lro_locked(sc, 0);
else
err = mxge_change_lro_locked(sc, mxge_lro_cnt);
}
if (mask & IFCAP_VLAN_HWTAGGING)
ifp->if_capenable ^= IFCAP_VLAN_HWTAGGING;
mtx_unlock(&sc->driver_mtx);
@ -3193,6 +3214,9 @@ mxge_fetch_tunables(mxge_softc_t *sc)
&mxge_verbose);
TUNABLE_INT_FETCH("hw.mxge.ticks", &mxge_ticks);
TUNABLE_INT_FETCH("hw.mxge.lro_cnt", &sc->lro_cnt);
printf("%d %d\n", sc->lro_cnt, mxge_lro_cnt);
if (sc->lro_cnt != 0)
mxge_lro_cnt = sc->lro_cnt;
if (bootverbose)
mxge_verbose = 1;
@ -3350,7 +3374,8 @@ mxge_attach(device_t dev)
if_initname(ifp, device_get_name(dev), device_get_unit(dev));
ifp->if_baudrate = 100000000;
ifp->if_capabilities = IFCAP_RXCSUM | IFCAP_TXCSUM | IFCAP_TSO4 |
IFCAP_VLAN_MTU | IFCAP_VLAN_HWTAGGING | IFCAP_VLAN_HWCSUM;
IFCAP_VLAN_MTU | IFCAP_VLAN_HWTAGGING |
IFCAP_VLAN_HWCSUM | IFCAP_LRO;
sc->max_mtu = mxge_max_mtu(sc);
if (sc->max_mtu >= 9000)
@ -3361,6 +3386,8 @@ mxge_attach(device_t dev)
sc->max_mtu - ETHER_HDR_LEN);
ifp->if_hwassist = CSUM_TCP | CSUM_UDP | CSUM_TSO;
ifp->if_capenable = ifp->if_capabilities;
if (sc->lro_cnt == 0)
ifp->if_capenable &= ~IFCAP_LRO;
sc->csum_flag = 1;
ifp->if_init = mxge_init;
ifp->if_softc = sc;