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tg3: Don't allocate jumbo ring for 5780 class devs 

The 5714, 5715, and 5780 devices do not have a separate rx jumbo
producer ring.  This patch changes the code so that resources are not
allocated for it.

Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Reviewed-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Matt Carlson 2010-10-14 10:37:43 +00:00 committed by David S. Miller
parent f94e290eba
commit 4803572815
1 changed files with 7 additions and 4 deletions
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11
drivers/net/tg3.c
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@ -6219,7 +6219,8 @@ static void tg3_rx_prodring_free(struct tg3 *tp,
tg3_rx_skb_free(tp, &tpr->rx_std_buffers[i],
tp->rx_pkt_map_sz);
if (tp->tg3_flags & TG3_FLAG_JUMBO_CAPABLE) {
if ((tp->tg3_flags & TG3_FLAG_JUMBO_CAPABLE) &&
!(tp->tg3_flags2 & TG3_FLG2_5780_CLASS)) {
for (i = 0; i <= tp->rx_jmb_ring_mask; i++)
tg3_rx_skb_free(tp, &tpr->rx_jmb_buffers[i],
TG3_RX_JMB_MAP_SZ);
@ -6246,7 +6247,7 @@ static int tg3_rx_prodring_alloc(struct tg3 *tp,
if (tpr != &tp->napi[0].prodring) {
memset(&tpr->rx_std_buffers[0], 0,
TG3_RX_STD_BUFF_RING_SIZE(tp));
if (tp->tg3_flags & TG3_FLAG_JUMBO_CAPABLE)
if (tpr->rx_jmb_buffers)
memset(&tpr->rx_jmb_buffers[0], 0,
TG3_RX_JMB_BUFF_RING_SIZE(tp));
goto done;
@ -6289,7 +6290,8 @@ static int tg3_rx_prodring_alloc(struct tg3 *tp,
}
}
if (!(tp->tg3_flags & TG3_FLAG_JUMBO_CAPABLE))
if (!(tp->tg3_flags & TG3_FLAG_JUMBO_CAPABLE) ||
(tp->tg3_flags2 & TG3_FLG2_5780_CLASS))
goto done;
memset(tpr->rx_jmb, 0, TG3_RX_JMB_RING_BYTES(tp));
@ -6361,7 +6363,8 @@ static int tg3_rx_prodring_init(struct tg3 *tp,
if (!tpr->rx_std)
goto err_out;
if (tp->tg3_flags & TG3_FLAG_JUMBO_CAPABLE) {
if ((tp->tg3_flags & TG3_FLAG_JUMBO_CAPABLE) &&
!(tp->tg3_flags2 & TG3_FLG2_5780_CLASS)) {
tpr->rx_jmb_buffers = kzalloc(TG3_RX_JMB_BUFF_RING_SIZE(tp),
GFP_KERNEL);
if (!tpr->rx_jmb_buffers)