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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>
This commit is contained in:
Eddie Wai 2010-02-24 14:42:05 +00:00 committed by David S. Miller
parent a9736c086c
commit 66883e90ea
1 changed files with 16 additions and 5 deletions
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17
drivers/net/cnic.c
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@ -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);
}
}
static void cnic_cm_stop_bnx2_hw(struct cnic_dev *dev)