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bnx2x: Clean previous IGU status before ack

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When enabling interrupts, acknowledge the interrupt only
after configuring the IGU to the correct interrupt mode
(otherwise it would dirty selftests)

Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Yuval Mintz 2013-01-14 05:11:48 +00:00 committed by David S. Miller
parent 823e1d9079
commit ebe61d80b4
2 changed files with 11 additions and 7 deletions
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1
drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
View file

@ -1681,7 +1681,6 @@ static int bnx2x_setup_irqs(struct bnx2x *bp)
if (rc)
return rc;
} else {
bnx2x_ack_int(bp);
rc = bnx2x_req_irq(bp);
if (rc) {
BNX2X_ERR("IRQ request failed rc %d, aborting\n", rc);

17
drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
View file

@ -1539,26 +1539,31 @@ static void bnx2x_igu_int_enable(struct bnx2x *bp)
if (msix) {
val &= ~(IGU_PF_CONF_INT_LINE_EN |
IGU_PF_CONF_SINGLE_ISR_EN);
val |= (IGU_PF_CONF_FUNC_EN |
IGU_PF_CONF_MSI_MSIX_EN |
val |= (IGU_PF_CONF_MSI_MSIX_EN |
IGU_PF_CONF_ATTN_BIT_EN);
if (single_msix)
val |= IGU_PF_CONF_SINGLE_ISR_EN;
} else if (msi) {
val &= ~IGU_PF_CONF_INT_LINE_EN;
val |= (IGU_PF_CONF_FUNC_EN |
IGU_PF_CONF_MSI_MSIX_EN |
val |= (IGU_PF_CONF_MSI_MSIX_EN |
IGU_PF_CONF_ATTN_BIT_EN |
IGU_PF_CONF_SINGLE_ISR_EN);
} else {
val &= ~IGU_PF_CONF_MSI_MSIX_EN;
val |= (IGU_PF_CONF_FUNC_EN |
IGU_PF_CONF_INT_LINE_EN |
val |= (IGU_PF_CONF_INT_LINE_EN |
IGU_PF_CONF_ATTN_BIT_EN |
IGU_PF_CONF_SINGLE_ISR_EN);
}
/* Clean previous status - need to configure igu prior to ack*/
if ((!msix) || single_msix) {
REG_WR(bp, IGU_REG_PF_CONFIGURATION, val);
bnx2x_ack_int(bp);
}
val |= IGU_PF_CONF_FUNC_EN;
DP(NETIF_MSG_IFUP, "write 0x%x to IGU mode %s\n",
val, (msix ? "MSI-X" : (msi ? "MSI" : "INTx")));