[src/trunk]: src/sys/dev/pci/ixgbe The EICR register are cleared in the begin...

[msaitoh <msaitoh%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/22a69862a316
branches:  trunk
changeset: 1017374:22a69862a316
user:      msaitoh <msaitoh%NetBSD.org@localhost>
date:      Thu Dec 24 15:51:33 2020 +0000

description:
The EICR register are cleared in the beginning of the ixgbe_legacy_irq(),
so it's not required to clear each bit later in the function.

diffstat:

 sys/dev/pci/ixgbe/ixgbe.c |  7 ++-----
 1 files changed, 2 insertions(+), 5 deletions(-)

diffs (40 lines):

diff -r e5de3aebe863 -r 22a69862a316 sys/dev/pci/ixgbe/ixgbe.c
--- a/sys/dev/pci/ixgbe/ixgbe.c Thu Dec 24 15:51:04 2020 +0000
+++ b/sys/dev/pci/ixgbe/ixgbe.c Thu Dec 24 15:51:33 2020 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: ixgbe.c,v 1.267 2020/12/24 15:51:04 msaitoh Exp $ */
+/* $NetBSD: ixgbe.c,v 1.268 2020/12/24 15:51:33 msaitoh Exp $ */
 
 /******************************************************************************
 
@@ -5166,6 +5166,7 @@
        /* Silicon errata #26 on 82598. Disable all interrupts */
        IXGBE_WRITE_REG(hw, IXGBE_EIMC, IXGBE_IRQ_CLEAR_MASK);
 
+       /* Read and clear EICR */
        eicr = IXGBE_READ_REG(hw, IXGBE_EICR);
 
        adapter->stats.pf.legint.ev_count++;
@@ -5218,14 +5219,11 @@
                if ((eicr & eicr_mask)
                    || ((hw->phy.sfp_type == ixgbe_sfp_type_not_present)
                        && (eicr & IXGBE_EICR_LSC))) {
-                       IXGBE_WRITE_REG(hw, IXGBE_EICR, eicr_mask);
                        task_requests |= IXGBE_REQUEST_TASK_MOD;
                }
 
                if ((hw->mac.type == ixgbe_mac_82599EB) &&
                    (eicr & IXGBE_EICR_GPI_SDP1_BY_MAC(hw))) {
-                       IXGBE_WRITE_REG(hw, IXGBE_EICR,
-                           IXGBE_EICR_GPI_SDP1_BY_MAC(hw));
                        task_requests |= IXGBE_REQUEST_TASK_MSF;
                }
        }
@@ -5233,7 +5231,6 @@
        /* Check for fan failure */
        if (adapter->feat_en & IXGBE_FEATURE_FAN_FAIL) {
                ixgbe_check_fan_failure(adapter, eicr, true);
-               IXGBE_WRITE_REG(hw, IXGBE_EICR, IXGBE_EICR_GPI_SDP1_BY_MAC(hw));
        }
 
        /* External PHY interrupt */