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authorEddie Wai <waie@broadcom.com>2010-02-24 14:42:05 +0000
committerDavid S. Miller <davem@davemloft.net>2010-02-26 02:10:12 -0800
commit66883e90eaa0dd55d395c0f9a0c6da5d50809804 (patch)
tree1ff24317dba49de4e3566b9a58313a8ee04257fa
parenta9736c086cc6221659e498f0855152c32dbc1396 (diff)
cnic: Finetune iSCSI connection reset.
For bnx2 devices, always send notification to bnx2i to let it initiate the cleanup when RST is received. For bnx2x devices, add unsolicited RST_COMP handling to start the cleanup. Signed-off-by: Eddie Wai <waie@broadcom.com> Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: Benjamin Li <benli@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--drivers/net/cnic.c21
1 files changed, 16 insertions, 5 deletions
diff --git a/drivers/net/cnic.c b/drivers/net/cnic.c
index 0fe83717967..40865aac2af 100644
--- a/drivers/net/cnic.c
+++ b/drivers/net/cnic.c
@@ -3108,7 +3108,10 @@ static void cnic_cm_process_kcqe(struct cnic_dev *dev, struct kcqe *kcqe)
break;
case L4_KCQE_OPCODE_VALUE_RESET_RECEIVED:
- if (test_and_clear_bit(SK_F_OFFLD_COMPLETE, &csk->flags))
+ if (test_bit(CNIC_F_BNX2_CLASS, &dev->flags)) {
+ cnic_cm_upcall(cp, csk, opcode);
+ break;
+ } else if (test_and_clear_bit(SK_F_OFFLD_COMPLETE, &csk->flags))
csk->state = opcode;
/* fall through */
case L4_KCQE_OPCODE_VALUE_CLOSE_COMP:
@@ -3172,6 +3175,16 @@ static int cnic_ready_to_close(struct cnic_sock *csk, u32 opcode)
if (!test_and_set_bit(SK_F_CLOSING, &csk->flags))
return 1;
}
+ /* 57710+ only workaround to handle unsolicited RESET_COMP
+ * which will be treated like a RESET RCVD notification
+ * which triggers the clean up procedure
+ */
+ else if (opcode == L4_KCQE_OPCODE_VALUE_RESET_COMP) {
+ if (!test_and_set_bit(SK_F_CLOSING, &csk->flags)) {
+ csk->state = L4_KCQE_OPCODE_VALUE_RESET_RECEIVED;
+ return 1;
+ }
+ }
return 0;
}
@@ -3181,10 +3194,8 @@ static void cnic_close_bnx2_conn(struct cnic_sock *csk, u32 opcode)
struct cnic_local *cp = dev->cnic_priv;
clear_bit(SK_F_CONNECT_START, &csk->flags);
- if (cnic_ready_to_close(csk, opcode)) {
- cnic_close_conn(csk);
- cnic_cm_upcall(cp, csk, opcode);
- }
+ cnic_close_conn(csk);
+ cnic_cm_upcall(cp, csk, opcode);
}
static void cnic_cm_stop_bnx2_hw(struct cnic_dev *dev)