IB/qib: Clear 6120 hardware error register
Ralph Campbell [Thu, 17 Jun 2010 23:14:04 +0000 (23:14 +0000)]
The hardware error register needs to be cleared or another interrupt
will be generated, thus causing an infinite loop.  This is a
regression introduced when removing debug output.

Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

drivers/infiniband/hw/qib/qib_iba6120.c

index 1eadadc..a5e29db 100644 (file)
@@ -1355,8 +1355,7 @@ static int qib_6120_bringup_serdes(struct qib_pportdata *ppd)
        hwstat = qib_read_kreg64(dd, kr_hwerrstatus);
        if (hwstat) {
                /* should just have PLL, clear all set, in an case */
-               if (hwstat & ~QLOGIC_IB_HWE_SERDESPLLFAILED)
-                       qib_write_kreg(dd, kr_hwerrclear, hwstat);
+               qib_write_kreg(dd, kr_hwerrclear, hwstat);
                qib_write_kreg(dd, kr_errclear, ERR_MASK(HardwareErr));
        }