Author: np
Date: Tue Jan 13 01:40:12 2015
New Revision: 277102
URL: https://svnweb.freebsd.org/changeset/base/277102
Log:
cxgbe/iw_cxgbe: allow any size during the initial MPA exchange.
MFC after: 1 month
Modified:
head/sys/dev/cxgbe/iw_cxgbe/cm.c
Modified: head/sys/dev/cxgbe/iw_cxgbe/cm.c
==============================================================================
--- head/sys/dev/cxgbe/iw_cxgbe/cm.c Tue Jan 13 00:20:35 2015
(r277101)
+++ head/sys/dev/cxgbe/iw_cxgbe/cm.c Tue Jan 13 01:40:12 2015
(r277102)
@@ -955,18 +955,14 @@ send_mpa_req(struct c4iw_ep *ep)
if (mpa_rev_to_use == 2)
mpalen += sizeof(struct mpa_v2_conn_params);
- if (mpalen > MHLEN)
- CXGBE_UNIMPLEMENTED(__func__);
-
- m = m_gethdr(M_NOWAIT, MT_DATA);
- if (m == NULL) {
+ mpa = malloc(mpalen, M_CXGBE, M_NOWAIT);
+ if (mpa == NULL) {
+failed:
connect_reply_upcall(ep, -ENOMEM);
return;
}
- mpa = mtod(m, struct mpa_message *);
- m->m_len = mpalen;
- m->m_pkthdr.len = mpalen;
+ memset(mpa, 0, mpalen);
memcpy(mpa->key, MPA_KEY_REQ, sizeof(mpa->key));
mpa->flags = (crc_enabled ? MPA_CRC : 0) |
(markers_enabled ? MPA_MARKERS : 0) |
@@ -1013,11 +1009,18 @@ send_mpa_req(struct c4iw_ep *ep)
CTR2(KTR_IW_CXGBE, "%s:smr7 %p", __func__, ep);
}
- err = sosend(ep->com.so, NULL, NULL, m, NULL, MSG_DONTWAIT,
ep->com.thread);
- if (err) {
- connect_reply_upcall(ep, -ENOMEM);
- return;
+ m = m_getm(NULL, mpalen, M_NOWAIT, MT_DATA);
+ if (m == NULL) {
+ free(mpa, M_CXGBE);
+ goto failed;
}
+ m_copyback(m, 0, mpalen, (void *)mpa);
+ free(mpa, M_CXGBE);
+
+ err = sosend(ep->com.so, NULL, NULL, m, NULL, MSG_DONTWAIT,
+ ep->com.thread);
+ if (err)
+ goto failed;
START_EP_TIMER(ep);
state_set(&ep->com, MPA_REQ_SENT);
@@ -1044,22 +1047,11 @@ static int send_mpa_reject(struct c4iw_e
ep->mpa_attr.version, mpalen);
}
- if (mpalen > MHLEN)
- CXGBE_UNIMPLEMENTED(__func__);
-
- m = m_gethdr(M_NOWAIT, MT_DATA);
- if (m == NULL) {
-
- printf("%s - cannot alloc mbuf!\n", __func__);
- CTR2(KTR_IW_CXGBE, "%s:smrej2 %p", __func__, ep);
+ mpa = malloc(mpalen, M_CXGBE, M_NOWAIT);
+ if (mpa == NULL)
return (-ENOMEM);
- }
-
- mpa = mtod(m, struct mpa_message *);
- m->m_len = mpalen;
- m->m_pkthdr.len = mpalen;
- memset(mpa, 0, sizeof(*mpa));
+ memset(mpa, 0, mpalen);
memcpy(mpa->key, MPA_KEY_REP, sizeof(mpa->key));
mpa->flags = MPA_REJECT;
mpa->revision = mpa_rev;
@@ -1091,7 +1083,15 @@ static int send_mpa_reject(struct c4iw_e
if (plen)
memcpy(mpa->private_data, pdata, plen);
- err = sosend(ep->com.so, NULL, NULL, m, NULL, MSG_DONTWAIT,
ep->com.thread);
+ m = m_getm(NULL, mpalen, M_NOWAIT, MT_DATA);
+ if (m == NULL) {
+ free(mpa, M_CXGBE);
+ return (-ENOMEM);
+ }
+ m_copyback(m, 0, mpalen, (void *)mpa);
+ free(mpa, M_CXGBE);
+
+ err = -sosend(ep->com.so, NULL, NULL, m, NULL, MSG_DONTWAIT,
ep->com.thread);
if (!err)
ep->snd_seq += mpalen;
CTR4(KTR_IW_CXGBE, "%s:smrejE %p %u %d", __func__, ep, ep->hwtid, err);
@@ -1117,21 +1117,10 @@ static int send_mpa_reply(struct c4iw_ep
mpalen += sizeof(struct mpa_v2_conn_params);
}
- if (mpalen > MHLEN)
- CXGBE_UNIMPLEMENTED(__func__);
-
- m = m_gethdr(M_NOWAIT, MT_DATA);
- if (m == NULL) {
-
- CTR2(KTR_IW_CXGBE, "%s:smrep2 %p", __func__, ep);
- printf("%s - cannot alloc mbuf!\n", __func__);
+ mpa = malloc(mpalen, M_CXGBE, M_NOWAIT);
+ if (mpa == NULL)
return (-ENOMEM);
- }
-
- mpa = mtod(m, struct mpa_message *);
- m->m_len = mpalen;
- m->m_pkthdr.len = mpalen;
memset(mpa, 0, sizeof(*mpa));
memcpy(mpa->key, MPA_KEY_REP, sizeof(mpa->key));
mpa->flags = (ep->mpa_attr.crc_enabled ? MPA_CRC : 0) |
@@ -1182,9 +1171,18 @@ static int send_mpa_reply(struct c4iw_ep
if (plen)
memcpy(mpa->private_data, pdata, plen);
+ m = m_getm(NULL, mpalen, M_NOWAIT, MT_DATA);
+ if (m == NULL) {
+ free(mpa, M_CXGBE);
+ return (-ENOMEM);
+ }
+ m_copyback(m, 0, mpalen, (void *)mpa);
+ free(mpa, M_CXGBE);
+
+
state_set(&ep->com, MPA_REP_SENT);
ep->snd_seq += mpalen;
- err = sosend(ep->com.so, NULL, NULL, m, NULL, MSG_DONTWAIT,
+ err = -sosend(ep->com.so, NULL, NULL, m, NULL, MSG_DONTWAIT,
ep->com.thread);
CTR3(KTR_IW_CXGBE, "%s:smrepE %p %d", __func__, ep, err);
return err;
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