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vxge: Disable fcs stripping.

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- Disable fcs stripping. The minimum frame size that can be received by the
hardware is 57 Bytes. A 64 Byte Ethernet frame with the vlan tag and fcs
stripped will result in a 56 Byte frame which will lock up the receive
engine. The work around is to disable fcs stripping in the hardware which
is done with a firmware upgrade. The fixes are -
1. Ensure that the correct firmware version is used.
2. Decrement the indicated packet length of the receive packet by 4 bytes
(FCS length).

Signed-off-by: Sreenivasa Honnur <sreenivasa.honnur@neterion.com>
Signed-off-by: Ramkrishna Vepa <ram.vepa@neterion.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Sreenivasa Honnur 2009-07-01 21:17:24 +00:00 committed by David S. Miller
parent a5d165b571
commit 22fa125ee2
2 changed files with 7 additions and 5 deletions
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10
drivers/net/vxge/vxge-main.c
View File

@ -454,6 +454,8 @@ vxge_rx_1b_compl(struct __vxge_hw_ring *ringh, void *dtr,
vxge_hw_ring_rxd_1b_get(ringh, dtr, &dma_sizes);
pkt_length = dma_sizes;
pkt_length -= ETH_FCS_LEN;
vxge_debug_rx(VXGE_TRACE,
"%s: %s:%d Packet Length = %d",
ring->ndev->name, __func__, __LINE__, pkt_length);
@ -4163,11 +4165,11 @@ vxge_probe(struct pci_dev *pdev, const struct pci_device_id *pre)
}
if (ll_config.device_hw_info.fw_version.major !=
VXGE_DRIVER_VERSION_MAJOR) {
VXGE_DRIVER_FW_VERSION_MAJOR) {
vxge_debug_init(VXGE_ERR,
"FW Ver.(maj): %d not driver's expected version: %d",
ll_config.device_hw_info.fw_version.major,
VXGE_DRIVER_VERSION_MAJOR);
"%s: Incorrect firmware version."
"Please upgrade the firmware to version 1.x.x",
VXGE_DRIVER_NAME);
ret = -EINVAL;
goto _exit3;
}

2
drivers/net/vxge/vxge-main.h
View File

@ -21,7 +21,7 @@
#define VXGE_DRIVER_NAME "vxge"
#define VXGE_DRIVER_VENDOR "Neterion, Inc"
#define VXGE_DRIVER_VERSION_MAJOR 0
#define VXGE_DRIVER_FW_VERSION_MAJOR 1
#define DRV_VERSION VXGE_VERSION_MAJOR"."VXGE_VERSION_MINOR"."\
VXGE_VERSION_FIX"."VXGE_VERSION_BUILD"-"\