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authorMatt Carlson <mcarlson@broadcom.com>2011-01-25 16:58:50 +0100
committerDavid S. Miller <davem@davemloft.net>2011-01-26 04:38:17 +0100
commit0583d52114b19ea06d03dd2cf762a7737c265400 (patch)
treed290f5fa1a4fd201a6cb378fe26b76a16f73a52c /drivers/net/tg3.c
parenttg3: Use new VLAN code (diff)
downloadlinux-0583d52114b19ea06d03dd2cf762a7737c265400.tar.xz
linux-0583d52114b19ea06d03dd2cf762a7737c265400.zip
tg3: Disable multivec mode for 1 MSIX vector
For single vector MSI-X allocations, we do not want to enable multivector modes. This patch makes the necessary corrections. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Reviewed-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to '')
-rw-r--r--drivers/net/tg3.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index d4b29f424085..b2a16b4e3caf 100644
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -8322,7 +8322,8 @@ static int tg3_reset_hw(struct tg3 *tp, int reset_phy)
tw32_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl);
udelay(100);
- if (tp->tg3_flags2 & TG3_FLG2_USING_MSIX) {
+ if ((tp->tg3_flags2 & TG3_FLG2_USING_MSIX) &&
+ tp->irq_cnt > 1) {
val = tr32(MSGINT_MODE);
val |= MSGINT_MODE_MULTIVEC_EN | MSGINT_MODE_ENABLE;
tw32(MSGINT_MODE, val);
@@ -9062,7 +9063,8 @@ static void tg3_ints_init(struct tg3 *tp)
if (tp->tg3_flags2 & TG3_FLG2_USING_MSI_OR_MSIX) {
u32 msi_mode = tr32(MSGINT_MODE);
- if (tp->tg3_flags2 & TG3_FLG2_USING_MSIX)
+ if ((tp->tg3_flags2 & TG3_FLG2_USING_MSIX) &&
+ tp->irq_cnt > 1)
msi_mode |= MSGINT_MODE_MULTIVEC_EN;
tw32(MSGINT_MODE, msi_mode | MSGINT_MODE_ENABLE);
}