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authorMatt Carlson <mcarlson@broadcom.com>2010-01-20 16:58:08 +0000
committerDavid S. Miller <davem@davemloft.net>2010-01-20 19:21:01 -0800
commitc2353a3214ff5813c4b719b3cdacbe939b1c63a0 (patch)
tree5f6f3b3cb5cb9e410baffd9fabd3e5c10c8a7843 /drivers/net/tg3.c
parent5fd68fbdaf75505a2400826c7f314a1f3121a5f7 (diff)
downloadlwn-c2353a3214ff5813c4b719b3cdacbe939b1c63a0.tar.gz
lwn-c2353a3214ff5813c4b719b3cdacbe939b1c63a0.zip
tg3: Fix tx mailbox initialization
If a device supports MSI-X interrupts, the driver assumes TSS will be available. This is not true for the 57765. This patch changes the code so that only the default tx mailbox is initialized if TSS is not available. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Reviewed-by: Michael Chan <mchan@broadcom.com> Reviewed-by: Benjamin Li <benli@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/tg3.c')
-rw-r--r--drivers/net/tg3.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index 72d1e18a152c..dffa51a4aafb 100644
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -7440,10 +7440,13 @@ static void tg3_rings_reset(struct tg3 *tp)
for (i = 1; i < TG3_IRQ_MAX_VECS; i++) {
tp->napi[i].tx_prod = 0;
tp->napi[i].tx_cons = 0;
- tw32_mailbox(tp->napi[i].prodmbox, 0);
+ if (tp->tg3_flags3 & TG3_FLG3_ENABLE_TSS)
+ tw32_mailbox(tp->napi[i].prodmbox, 0);
tw32_rx_mbox(tp->napi[i].consmbox, 0);
tw32_mailbox_f(tp->napi[i].int_mbox, 1);
}
+ if (!(tp->tg3_flags3 & TG3_FLG3_ENABLE_TSS))
+ tw32_mailbox(tp->napi[0].prodmbox, 0);
} else {
tp->napi[0].tx_prod = 0;
tp->napi[0].tx_cons = 0;