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wctc4xxp: We always want to ack the responses.

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Furthermore, do it as soon as we know we should to prevent the ack from
potentially going out after another CSM_ENCAPS packet on another CPU.

Previously, we would not send ACKS to responses we believed we already responded
to.

Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Signed-off-by: Russ Meyerriecks <rmeyerriecks@digium.com>
This commit is contained in:
Shaun Ruffell 2014-05-05 14:10:57 -05:00 committed by Russ Meyerriecks
parent 44a33126e0
commit bc274e1b5d
1 changed files with 4 additions and 20 deletions
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24
drivers/dahdi/wctc4xxp/base.c
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@ -2374,19 +2374,15 @@ receive_csm_encaps_packet(struct wcdte *wc, struct tcb *cmd)
if (!(hdr->control & MESSAGE_PACKET)) {
const bool suppress_ack = ((hdr->control & SUPPRESS_ACK) > 0);
if (!suppress_ack)
wctc4xxp_send_ack(wc, hdr->seq_num, hdr->channel);
if (is_response(hdr)) {
u8 seq_num = hdr->seq_num;
__be16 channel = hdr->channel;
do_rx_response_packet(wc, cmd);
if (!suppress_ack)
wctc4xxp_send_ack(wc, seq_num, channel);
} else if (0xc1 == hdr->type) {
if (!suppress_ack) {
wctc4xxp_send_ack(wc, hdr->seq_num,
hdr->channel);
}
if (0x75 == hdr->class) {
dev_warn(&wc->pdev->dev,
@ -2395,10 +2391,6 @@ receive_csm_encaps_packet(struct wcdte *wc, struct tcb *cmd)
}
free_cmd(cmd);
} else if (0xd4 == hdr->type) {
if (!suppress_ack) {
wctc4xxp_send_ack(wc, hdr->seq_num,
hdr->channel);
}
if (hdr->params[0] != le16_to_cpu(0xffff)) {
dev_warn(&wc->pdev->dev,
"DTE Failed self test (%04x).\n",
@ -2414,10 +2406,6 @@ receive_csm_encaps_packet(struct wcdte *wc, struct tcb *cmd)
}
free_cmd(cmd);
} else if (MONITOR_LIVE_INDICATION_TYPE == hdr->type) {
if (!suppress_ack) {
wctc4xxp_send_ack(wc, hdr->seq_num,
hdr->channel);
}
if (hdr->function == 0x0000) {
u16 alert_type = le16_to_cpu(hdr->params[0]);
@ -2434,10 +2422,6 @@ receive_csm_encaps_packet(struct wcdte *wc, struct tcb *cmd)
print_command(wc, cmd);
free_cmd(cmd);
} else {
if (!suppress_ack) {
wctc4xxp_send_ack(wc, hdr->seq_num,
hdr->channel);
}
dev_warn(&wc->pdev->dev,
"Unknown command type received. %02x\n", hdr->type);
free_cmd(cmd);