upstream/opnsense-src
1
0
Fork 0
mirror of https://github.com/opnsense/src.git synced 2026-05-28 04:12:45 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions

Added MSI support.

Browse source 
Sponsored by: Myricom Inc.
This commit is contained in:
Andrew Gallatin 2006-11-21 15:55:01 +00:00
parent ba70462c1c
commit dc8731d4d2
1 changed files with 34 additions and 12 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

46
sys/dev/mxge/if_mxge.c
View file

@ -2009,12 +2009,17 @@ mxge_intr(void *arg)
}
valid = stats->valid;
/* lower legacy IRQ */
*sc->irq_deassert = 0;
mb();
if (!mxge_deassert_wait)
/* don't wait for conf. that irq is low */
if (!sc->msi_enabled) {
/* lower legacy IRQ */
*sc->irq_deassert = 0;
if (!mxge_deassert_wait)
/* don't wait for conf. that irq is low */
stats->valid = 0;
} else {
stats->valid = 0;
}
/* loop while waiting for legacy irq deassertion */
do {
/* check for transmit completes and receives */
send_done_count = be32toh(stats->send_done_count);
@ -2682,7 +2687,7 @@ mxge_attach(device_t dev)
mxge_softc_t *sc = device_get_softc(dev);
struct ifnet *ifp;
size_t bytes;
int rid, err;
int count, rid, err;
uint16_t cmd;
sc->dev = dev;
@ -2782,17 +2787,27 @@ mxge_attach(device_t dev)
goto abort_with_fw_stats;
sc->rx_done.entry = sc->rx_done.dma.addr;
bzero(sc->rx_done.entry, bytes);
/* Add our ithread */
rid = 0;
sc->irq_res = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0, ~0,
count = pci_msi_count(dev);
if (count == 1 && pci_alloc_msi(dev, &count) == 0) {
rid = 1;
sc->msi_enabled = 1;
} else {
rid = 0;
}
sc->irq_res = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0, ~0,
1, RF_SHAREABLE | RF_ACTIVE);
if (sc->irq_res == NULL) {
device_printf(dev, "could not alloc interrupt\n");
goto abort_with_rx_done;
}
if (bootverbose)
device_printf(dev, "using %s irq %ld\n",
sc->msi_enabled ? "MSI" : "INTx",
rman_get_start(sc->irq_res));
/* load the firmware */
mxge_select_firmware(sc);
mxge_select_firmware(sc);
err = mxge_load_firmware(sc);
if (err != 0)
@ -2827,7 +2842,10 @@ mxge_attach(device_t dev)
return 0;
abort_with_irq_res:
bus_release_resource(dev, SYS_RES_IRQ, 0, sc->irq_res);
bus_release_resource(dev, SYS_RES_IRQ,
sc->msi_enabled ? 1 : 0, sc->irq_res);
if (sc->msi_enabled)
pci_release_msi(dev);
abort_with_rx_done:
sc->rx_done.entry = NULL;
mxge_dma_free(&sc->rx_done.dma);
@ -2863,7 +2881,11 @@ mxge_detach(device_t dev)
sx_xunlock(&sc->driver_lock);
ether_ifdetach(sc->ifp);
mxge_dummy_rdma(sc, 0);
bus_release_resource(dev, SYS_RES_IRQ, 0, sc->irq_res);
bus_release_resource(dev, SYS_RES_IRQ,
sc->msi_enabled ? 1 : 0, sc->irq_res);
if (sc->msi_enabled)
pci_release_msi(dev);
sc->rx_done.entry = NULL;
mxge_dma_free(&sc->rx_done.dma);
mxge_dma_free(&sc->fw_stats_dma);