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tg3: Fix tx mailbox initialization

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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>
This commit is contained in:
Matt Carlson 2010-01-20 16:58:08 +00:00 committed by David S. Miller
parent 5fd68fbdaf
commit c2353a3214
1 changed files with 4 additions and 1 deletions
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5
drivers/net/tg3.c
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@ -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;