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>
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@ -8322,7 +8322,8 @@ static int tg3_reset_hw(struct tg3 *tp, int reset_phy)
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tw32_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl);
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udelay(100);
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if (tp->tg3_flags2 & TG3_FLG2_USING_MSIX) {
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if ((tp->tg3_flags2 & TG3_FLG2_USING_MSIX) &&
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tp->irq_cnt > 1) {
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val = tr32(MSGINT_MODE);
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val |= MSGINT_MODE_MULTIVEC_EN | MSGINT_MODE_ENABLE;
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tw32(MSGINT_MODE, val);
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@ -9062,7 +9063,8 @@ static void tg3_ints_init(struct tg3 *tp)
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if (tp->tg3_flags2 & TG3_FLG2_USING_MSI_OR_MSIX) {
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u32 msi_mode = tr32(MSGINT_MODE);
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if (tp->tg3_flags2 & TG3_FLG2_USING_MSIX)
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if ((tp->tg3_flags2 & TG3_FLG2_USING_MSIX) &&
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tp->irq_cnt > 1)
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msi_mode |= MSGINT_MODE_MULTIVEC_EN;
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tw32(MSGINT_MODE, msi_mode | MSGINT_MODE_ENABLE);
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}
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