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authorDivy Le Ray <divy@chelsio.com>2008-09-25 16:05:28 +0200
committerDavid S. Miller <davem@davemloft.net>2008-10-09 00:57:17 +0200
commit0ca41c0413a4d9ca58767d53d23accea9aa1cdef (patch)
treec94c8bc0ffbe971cddcb894df984c315b62f7fde /drivers/net/cxgb3/sge.c
parentvia-velocity: Fix warnings on sparc64. (diff)
downloadlinux-0ca41c0413a4d9ca58767d53d23accea9aa1cdef.tar.xz
linux-0ca41c0413a4d9ca58767d53d23accea9aa1cdef.zip
[2.6.28,1/1] cxgb3 - fix race in EEH
A SGE queue set timer might access registers while in EEH recovery, triggering an EEH error loop. Stop all timers early in EEH process. Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/cxgb3/sge.c')
-rw-r--r--drivers/net/cxgb3/sge.c21
1 files changed, 18 insertions, 3 deletions
diff --git a/drivers/net/cxgb3/sge.c b/drivers/net/cxgb3/sge.c
index 89efd04be4e0..7346a8e26da1 100644
--- a/drivers/net/cxgb3/sge.c
+++ b/drivers/net/cxgb3/sge.c
@@ -603,9 +603,6 @@ static void t3_free_qset(struct adapter *adapter, struct sge_qset *q)
int i;
struct pci_dev *pdev = adapter->pdev;
- if (q->tx_reclaim_timer.function)
- del_timer_sync(&q->tx_reclaim_timer);
-
for (i = 0; i < SGE_RXQ_PER_SET; ++i)
if (q->fl[i].desc) {
spin_lock_irq(&adapter->sge.reg_lock);
@@ -3009,6 +3006,24 @@ err:
}
/**
+ * t3_stop_sge_timers - stop SGE timer call backs
+ * @adap: the adapter
+ *
+ * Stops each SGE queue set's timer call back
+ */
+void t3_stop_sge_timers(struct adapter *adap)
+{
+ int i;
+
+ for (i = 0; i < SGE_QSETS; ++i) {
+ struct sge_qset *q = &adap->sge.qs[i];
+
+ if (q->tx_reclaim_timer.function)
+ del_timer_sync(&q->tx_reclaim_timer);
+ }
+}
+
+/**
* t3_free_sge_resources - free SGE resources
* @adap: the adapter
*