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if_dwc: enable RX checksum offload feature

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We claim support in ifcaps, but don't actually enable it.

PR:		263886
Reviewed by:	manu
MFC after:	1 week
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D35498
This commit is contained in:
Jiahao Li 2022-06-21 10:23:43 -03:00 committed by Mitchell Horne
parent 3428997cb3
commit 35c9edab41
2 changed files with 22 additions and 0 deletions
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21
sys/dev/dwc/if_dwc.c
View File

@ -518,6 +518,20 @@ dwc_enable_mac(struct dwc_softc *sc, bool enable)
WRITE4(sc, MAC_CONFIGURATION, reg);
}
static void
dwc_enable_csum_offload(struct dwc_softc *sc)
{
uint32_t reg;
DWC_ASSERT_LOCKED(sc);
reg = READ4(sc, MAC_CONFIGURATION);
if ((if_getcapenable(sc->ifp) & IFCAP_RXCSUM) != 0)
reg |= CONF_IPC;
else
reg &= ~CONF_IPC;
WRITE4(sc, MAC_CONFIGURATION, reg);
}
static void
dwc_get_hwaddr(struct dwc_softc *sc, uint8_t *hwaddr)
{
@ -1163,6 +1177,7 @@ dwc_init_locked(struct dwc_softc *sc)
dwc_setup_rxfilter(sc);
dwc_setup_core(sc);
dwc_enable_mac(sc, true);
dwc_enable_csum_offload(sc);
dwc_init_dma(sc);
if_setdrvflagbits(ifp, IFF_DRV_RUNNING, IFF_DRV_OACTIVE);
@ -1261,6 +1276,12 @@ dwc_ioctl(if_t ifp, u_long cmd, caddr_t data)
if_sethwassistbits(ifp, CSUM_IP | CSUM_UDP | CSUM_TCP, 0);
else
if_sethwassistbits(ifp, 0, CSUM_IP | CSUM_UDP | CSUM_TCP);
if (if_getdrvflags(ifp) & IFF_DRV_RUNNING) {
DWC_LOCK(sc);
dwc_enable_csum_offload(sc);
DWC_UNLOCK(sc);
}
break;
default:

1
sys/dev/dwc/if_dwc.h
View File

@ -48,6 +48,7 @@
#define CONF_PS (1 << 15) /* GMII/MII */
#define CONF_FES (1 << 14) /* MII speed select */
#define CONF_DM (1 << 11) /* Full Duplex Enable */
#define CONF_IPC (1 << 10) /* IPC checksum offload */
#define CONF_ACS (1 << 7)
#define CONF_TE (1 << 3)
#define CONF_RE (1 << 2)