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tg3: Adjust BD replenish thresholds

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The BD replenish thresholds for the 57765 and newer ASIC revs are a
little strict.  They were tuned for a mode that is currently unused.
This patch relaxes the thresholds so that they are set to values more
inline with the resources available.

Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Matt Carlson 2011-11-21 15:01:18 +00:00 committed by David S. Miller
parent f3791cdf33
commit 513aa6ea39
1 changed files with 3 additions and 5 deletions
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8
drivers/net/ethernet/broadcom/tg3.c
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@ -8171,7 +8171,8 @@ static void tg3_setup_rxbd_thresholds(struct tg3 *tp)
if (!tg3_flag(tp, 5750_PLUS) ||
tg3_flag(tp, 5780_CLASS) ||
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5750 ||
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5752)
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5752 ||
tg3_flag(tp, 57765_PLUS))
bdcache_maxcnt = TG3_SRAM_RX_STD_BDCACHE_SIZE_5700;
else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5755 ||
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5787)
@ -8191,10 +8192,7 @@ static void tg3_setup_rxbd_thresholds(struct tg3 *tp)
if (!tg3_flag(tp, JUMBO_CAPABLE) || tg3_flag(tp, 5780_CLASS))
return;
if (!tg3_flag(tp, 5705_PLUS))
bdcache_maxcnt = TG3_SRAM_RX_JMB_BDCACHE_SIZE_5700;
else
bdcache_maxcnt = TG3_SRAM_RX_JMB_BDCACHE_SIZE_5717;
bdcache_maxcnt = TG3_SRAM_RX_JMB_BDCACHE_SIZE_5700;
host_rep_thresh = max_t(u32, tp->rx_jumbo_pending / 8, 1);