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authorStephen Hemminger <shemminger@linux-foundation.org>2007-09-27 12:38:12 -0700
committerJeff Garzik <jeff@garzik.org>2007-09-27 23:32:29 -0400
commit88f5f0cad396be594d6d55cb2d0cd69e8df9ab16 (patch)
tree3520aeaa3d1b75d0adcb667a351ca5a30b8549af
parentd6c9bc1ed4301cbc3df4565ff5348b64bf2a767c (diff)
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>
-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 3bfc9d3e3c6e..162489b9f599 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);