diff options
| author | ru <ru@FreeBSD.org> | 2004-04-11 13:47:15 +0000 |
|---|---|---|
| committer | ru <ru@FreeBSD.org> | 2004-04-11 13:47:15 +0000 |
| commit | ba67628e611944011a4d6b7a81fda89d7dd093de (patch) | |
| tree | 1ad84e70561baa2ccdd6ddd250540d535bf3ab14 /sys/dev/dc | |
| parent | 04fb5a0de8cdf2f792408dc2d15249387718961c (diff) | |
| download | FreeBSD-src-ba67628e611944011a4d6b7a81fda89d7dd093de.zip FreeBSD-src-ba67628e611944011a4d6b7a81fda89d7dd093de.tar.gz | |
First driver with user-configurable polling(4).
Diffstat (limited to 'sys/dev/dc')
| -rw-r--r-- | sys/dev/dc/if_dc.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/sys/dev/dc/if_dc.c b/sys/dev/dc/if_dc.c index b614db9..01ac05a 100644 --- a/sys/dev/dc/if_dc.c +++ b/sys/dev/dc/if_dc.c @@ -2320,6 +2320,10 @@ dc_attach(device_t dev) */ ifp->if_data.ifi_hdrlen = sizeof(struct ether_vlan_header); ifp->if_capabilities |= IFCAP_VLAN_MTU; +#ifdef DEVICE_POLLING + ifp->if_capabilities |= IFCAP_POLLING; +#endif + ifp->if_capenable = ifp->if_capabilities; callout_init(&sc->dc_stat_ch, IS_MPSAFE ? CALLOUT_MPSAFE : 0); @@ -3083,6 +3087,10 @@ dc_poll(struct ifnet *ifp, enum poll_cmd cmd, int count) { struct dc_softc *sc = ifp->if_softc; + if (!(ifp->if_capenable & IFCAP_POLLING)) { + ether_poll_deregister(ifp); + cmd = POLL_DEREGISTER; + } if (cmd == POLL_DEREGISTER) { /* final call, enable interrupts */ /* Re-enable interrupts. */ CSR_WRITE_4(sc, DC_IMR, DC_INTRS); @@ -3153,7 +3161,8 @@ dc_intr(void *arg) #ifdef DEVICE_POLLING if (ifp->if_flags & IFF_POLLING) goto done; - if (ether_poll_register(dc_poll, ifp)) { /* ok, disable interrupts */ + if ((ifp->if_capenable & IFCAP_POLLING) && + ether_poll_register(dc_poll, ifp)) { /* ok, disable interrupts */ CSR_WRITE_4(sc, DC_IMR, 0x00000000); goto done; } @@ -3698,6 +3707,9 @@ dc_ioctl(struct ifnet *ifp, u_long command, caddr_t data) sc->dc_srm_media = 0; #endif break; + case SIOCSIFCAP: + ifp->if_capenable = ifr->ifr_reqcap; + break; default: error = ether_ioctl(ifp, command, data); break; |
