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authorChris Johns <chrisj@rtems.org>2015-06-19 17:35:06 +1000
committerChris Johns <chrisj@rtems.org>2015-06-19 17:35:06 +1000
commit54fb9f01f86286ecea3093f6f524afec86d6313f (patch)
tree220292384e47411e888df8824f67030129a63fa9
parentRemove #undefs and fix formatting. (diff)
downloadrtems-libbsd-54fb9f01f86286ecea3093f6f524afec86d6313f.tar.bz2
Return the default TX and RX hardware checksum for the Cadence driver to off.
The hardware support does not seem to work with qemu. The support can be enabled with ifconfig or via ioctl on real hardware to get the performance boost.
-rw-r--r--freebsd/sys/dev/cadence/if_cgem.c19
-rw-r--r--libbsd.txt14
2 files changed, 20 insertions, 13 deletions
diff --git a/freebsd/sys/dev/cadence/if_cgem.c b/freebsd/sys/dev/cadence/if_cgem.c
index 27ce43d3..d2af8c91 100644
--- a/freebsd/sys/dev/cadence/if_cgem.c
+++ b/freebsd/sys/dev/cadence/if_cgem.c
@@ -329,7 +329,7 @@ cgem_rx_filter(struct cgem_softc *sc)
net_cfg = RD4(sc, CGEM_NET_CFG);
net_cfg &= ~(CGEM_NET_CFG_MULTI_HASH_EN |
- CGEM_NET_CFG_NO_BCAST |
+ CGEM_NET_CFG_NO_BCAST |
CGEM_NET_CFG_COPY_ALL);
if ((ifp->if_flags & IFF_PROMISC) != 0)
@@ -462,7 +462,7 @@ cgem_setup_descs(struct cgem_softc *sc)
err = bus_dmamap_load(sc->desc_dma_tag, sc->txring_dma_map,
(void *)sc->txring,
CGEM_NUM_TX_DESCS*sizeof(struct cgem_tx_desc),
- cgem_getaddr, &sc->txring_physaddr,
+ cgem_getaddr, &sc->txring_physaddr,
BUS_DMA_NOWAIT);
if (err)
return (err);
@@ -514,7 +514,7 @@ cgem_fill_rqueue(struct cgem_softc *sc)
#ifndef __rtems__
/* Load map and plug in physical address. */
- if (bus_dmamap_load_mbuf_sg(sc->mbuf_dma_tag,
+ if (bus_dmamap_load_mbuf_sg(sc->mbuf_dma_tag,
sc->rxring_m_dmamap[sc->rxring_hd_ptr], m,
segs, &nsegs, BUS_DMA_NOWAIT)) {
sc->rxdmamapfails++;
@@ -542,7 +542,7 @@ cgem_fill_rqueue(struct cgem_softc *sc)
sc->rxring_hd_ptr = 0;
} else
sc->rxring[sc->rxring_hd_ptr++].addr = segs[0].ds_addr;
-
+
sc->rxring_queued++;
}
}
@@ -1129,7 +1129,7 @@ cgem_config(struct cgem_softc *sc)
/* Write the rx and tx descriptor ring addresses to the QBAR regs. */
WR4(sc, CGEM_RX_QBAR, (uint32_t) sc->rxring_physaddr);
WR4(sc, CGEM_TX_QBAR, (uint32_t) sc->txring_physaddr);
-
+
/* Enable rx and tx. */
sc->net_ctl_shadow |= (CGEM_NET_CTRL_TX_EN | CGEM_NET_CTRL_RX_EN);
WR4(sc, CGEM_NET_CTRL, sc->net_ctl_shadow);
@@ -1323,7 +1323,7 @@ cgem_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
~CGEM_NET_CFG_RX_CHKSUM_OFFLD_EN);
}
}
- if ((ifp->if_capenable & (IFCAP_RXCSUM | IFCAP_TXCSUM)) ==
+ if ((ifp->if_capenable & (IFCAP_RXCSUM | IFCAP_TXCSUM)) ==
(IFCAP_RXCSUM | IFCAP_TXCSUM))
ifp->if_capenable |= IFCAP_VLAN_HWCSUM;
else
@@ -1423,7 +1423,7 @@ cgem_miibus_writereg(device_t dev, int phy, int reg, int data)
{
struct cgem_softc *sc = device_get_softc(dev);
int tries;
-
+
WR4(sc, CGEM_PHY_MAINT,
CGEM_PHY_MAINT_CLAUSE_22 | CGEM_PHY_MAINT_MUST_10 |
CGEM_PHY_MAINT_OP_WRITE |
@@ -1778,15 +1778,10 @@ cgem_attach(device_t dev)
ifp->if_init = cgem_init;
ifp->if_capabilities |= IFCAP_HWCSUM | IFCAP_HWCSUM_IPV6 |
IFCAP_VLAN_MTU | IFCAP_VLAN_HWCSUM;
-#ifndef __rtems__
/* Disable hardware checksumming by default. */
ifp->if_hwassist = 0;
ifp->if_capenable = ifp->if_capabilities &
~(IFCAP_HWCSUM | IFCAP_HWCSUM_IPV6 | IFCAP_VLAN_HWCSUM);
-#else /* __rtems__ */
- ifp->if_hwassist = CGEM_CKSUM_ASSIST;
- ifp->if_capenable = ifp->if_capabilities;
-#endif /* __rtems__ */
ifp->if_snd.ifq_drv_maxlen = CGEM_NUM_TX_DESCS;
IFQ_SET_MAXLEN(&ifp->if_snd, ifp->if_snd.ifq_drv_maxlen);
IFQ_SET_READY(&ifp->if_snd);
diff --git a/libbsd.txt b/libbsd.txt
index 0a8378af..c0af13a8 100644
--- a/libbsd.txt
+++ b/libbsd.txt
@@ -1075,12 +1075,24 @@ Broadcom BCM4401 _bsd_bfe_pcimodule_sys_init Links
Broadcom BCM570x _bsd_bge_pcimodule_sys_init Needs Symbols (A)
E1000 IGB _bsd_igb_pcimodule_sys_init Links
E1000 EM _bsd_em_pcimodule_sys_init Links
+Cadence ? Links, works.
----
-
Symbols (A)
pci_get_vpd_ident
+=== Cadence ===
+
+The cadence driver works on the Xilinx Zynq platform. The hardware checksum
+support works on real hardware but does not seem to be supported on qemu
+therefore the default state is disabled and it can be enabled from the shell
+with:
+
+ # ifconfig cgem0 rxcsum txcsum
+
+or with an ioctl call to the network interface driver with SIOCSIFCAP and the
+mask IFCAP_TXCSUM and IFCAP_RXCSUM set.
+
== Problems to report to FreeBSD ==
The MMAP_NOT_AVAILABLE define is inverted on its usage. When it is