Patchwork [net-next,2/8] tg3: Disable unused transmit rings

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Submitter Matt Carlson
Date Oct. 14, 2010, 8:37 p.m.
Message ID <1287088665-22135-3-git-send-email-mcarlson@broadcom.com>
Download mbox | patch
Permalink /patch/67861/
State Accepted
Delegated to: David Miller
Headers show

Comments

Matt Carlson - Oct. 14, 2010, 8:37 p.m.
This patch allows the driver to disable the additional transmit rings
available on the 5717 and 5719 devices.  This is not strictly necessary,
but is done anyways for correctness.

Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Reviewed-by: Michael Chan <mchan@broadcom.com>
---
 drivers/net/tg3.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

Patch

diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index 978ba5d..1c680ff 100644
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -7536,6 +7536,9 @@  static void tg3_rings_reset(struct tg3 *tp)
 	/* Disable all transmit rings but the first. */
 	if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS))
 		limit = NIC_SRAM_SEND_RCB + TG3_BDINFO_SIZE * 16;
+	else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
+		 GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719)
+		limit = NIC_SRAM_SEND_RCB + TG3_BDINFO_SIZE * 4;
 	else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765)
 		limit = NIC_SRAM_SEND_RCB + TG3_BDINFO_SIZE * 2;
 	else