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authorStephen Hemminger <shemminger@linux-foundation.org>2007-09-27 19:38:12 (GMT)
committerJeff Garzik <jeff@garzik.org>2007-09-28 03:32:29 (GMT)
commit88f5f0cad396be594d6d55cb2d0cd69e8df9ab16 (patch)
tree3520aeaa3d1b75d0adcb667a351ca5a30b8549af /drivers
parentd6c9bc1ed4301cbc3df4565ff5348b64bf2a767c (diff)
downloadlinux-fsl-qoriq-88f5f0cad396be594d6d55cb2d0cd69e8df9ab16.tar.xz
sky2: fix transmit state on resume
This should fix http://bugzilla.kernel.org/show_bug.cgi?id=8667 After resume, driver has reset the chip so the current state of transmit checksum offload state machine and DMA state machine will be undefined. The fix is to set the state so that first Tx will set MSS and offset values. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/sky2.c17
1 files changed, 16 insertions, 1 deletions
diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c
index 3bfc9d3..162489b 100644
--- a/drivers/net/sky2.c
+++ b/drivers/net/sky2.c
@@ -910,6 +910,20 @@ static inline struct sky2_tx_le *get_tx_le(struct sky2_port *sky2)
return le;
}
+static void tx_init(struct sky2_port *sky2)
+{
+ struct sky2_tx_le *le;
+
+ sky2->tx_prod = sky2->tx_cons = 0;
+ sky2->tx_tcpsum = 0;
+ sky2->tx_last_mss = 0;
+
+ le = get_tx_le(sky2);
+ le->addr = 0;
+ le->opcode = OP_ADDR64 | HW_OWNER;
+ sky2->tx_addr64 = 0;
+}
+
static inline struct tx_ring_info *tx_le_re(struct sky2_port *sky2,
struct sky2_tx_le *le)
{
@@ -1320,7 +1334,8 @@ static int sky2_up(struct net_device *dev)
GFP_KERNEL);
if (!sky2->tx_ring)
goto err_out;
- sky2->tx_prod = sky2->tx_cons = 0;
+
+ tx_init(sky2);
sky2->rx_le = pci_alloc_consistent(hw->pdev, RX_LE_BYTES,
&sky2->rx_le_map);