[net-next-2.6 PATCH 7/9] vxge: Disable fcs stripping.
From: Sreenivasa Honnur <hidden>
Date: 2009-07-02 07:17:44
- 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 <redacted> Signed-off-by: Ramkrishna Vepa <redacted> diff -pNur patch-net-next-2.6/drivers/net/vxge/vxge-main.c patch-7-net-next-2.6/drivers/net/vxge/vxge-main.c
--- patch-net-next-2.6/drivers/net/vxge/vxge-main.c 2009-06-30 14:00:28.000000000 -0700
+++ patch-7-net-next-2.6/drivers/net/vxge/vxge-main.c 2009-06-30 17:18:17.000000000 -0700@@ -454,6 +454,8 @@ vxge_rx_1b_compl(struct __vxge_hw_ring * 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 s } 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; }
diff -pNur patch-net-next-2.6/drivers/net/vxge/vxge-main.h patch-7-net-next-2.6/drivers/net/vxge/vxge-main.h
--- patch-net-next-2.6/drivers/net/vxge/vxge-main.h 2009-06-30 14:00:28.000000000 -0700
+++ patch-7-net-next-2.6/drivers/net/vxge/vxge-main.h 2009-06-30 15:28:04.000000000 -0700@@ -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"-"\