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提交 615eb715 编写于 作者: T Tatyana Nikolova 提交者： Roland Dreier
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RDMA/nes: Add support for MPAv2 Enhanced RDMA Negotiation 

This patch adds support for Enhanced RDMA Connection Establishment
(draft-ietf-storm-mpa-peer-connect-06), aka MPAv2.  Details of draft
can be obtained from:
<http://www.ietf.org/id/draft-ietf-storm-mpa-peer-connect-06.txt>

For backwards compatibility, the MPAv2 enabled driver reverts to MPAv1
if the remote node doesn't support MPAv2.
Signed-off-by: NTatyana Nikolova <Tatyana.E.Nikolova@intel.com>
Signed-off-by: NFaisal Latif <Faisal.Latif@intel.com>
Reviewed-by: NSteve Wise <swise@opengridcomputing.com>
Signed-off-by: NRoland Dreier <roland@purestorage.com>
上级 d2fe99e8
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drivers/infiniband/hw/nes/nes_cm.c
浏览文件 @ 615eb715
...@@ -77,26 +77,19 @@ atomic_t cm_nodes_destroyed; ...@@ -77,26 +77,19 @@ atomic_t cm_nodes_destroyed;
atomic_t cm_accel_dropped_pkts; atomic_t cm_accel_dropped_pkts;
atomic_t cm_resets_recvd; atomic_t cm_resets_recvd;
static inline int mini_cm_accelerated(struct nes_cm_core *, static inline int mini_cm_accelerated(struct nes_cm_core *, struct nes_cm_node *);
struct nes_cm_node *); static struct nes_cm_listener *mini_cm_listen(struct nes_cm_core *, struct nes_vnic *, struct nes_cm_info *);
static struct nes_cm_listener *mini_cm_listen(struct nes_cm_core *,
struct nes_vnic *, struct nes_cm_info *);
static int mini_cm_del_listen(struct nes_cm_core *, struct nes_cm_listener *); static int mini_cm_del_listen(struct nes_cm_core *, struct nes_cm_listener *);
static struct nes_cm_node *mini_cm_connect(struct nes_cm_core *, static struct nes_cm_node *mini_cm_connect(struct nes_cm_core *, struct nes_vnic *, u16, void *, struct nes_cm_info *);
struct nes_vnic *, u16, void *, struct nes_cm_info *);
static int mini_cm_close(struct nes_cm_core *, struct nes_cm_node *); static int mini_cm_close(struct nes_cm_core *, struct nes_cm_node *);
static int mini_cm_accept(struct nes_cm_core *, struct ietf_mpa_frame *, static int mini_cm_accept(struct nes_cm_core *, struct nes_cm_node *);
struct nes_cm_node *); static int mini_cm_reject(struct nes_cm_core *, struct nes_cm_node *);
static int mini_cm_reject(struct nes_cm_core *, struct ietf_mpa_frame *, static int mini_cm_recv_pkt(struct nes_cm_core *, struct nes_vnic *, struct sk_buff *);
struct nes_cm_node *);
static int mini_cm_recv_pkt(struct nes_cm_core *, struct nes_vnic *,
struct sk_buff *);
static int mini_cm_dealloc_core(struct nes_cm_core *); static int mini_cm_dealloc_core(struct nes_cm_core *);
static int mini_cm_get(struct nes_cm_core *); static int mini_cm_get(struct nes_cm_core *);
static int mini_cm_set(struct nes_cm_core *, u32, u32); static int mini_cm_set(struct nes_cm_core *, u32, u32);
static void form_cm_frame(struct sk_buff *, struct nes_cm_node *, static void form_cm_frame(struct sk_buff *, struct nes_cm_node *, void *, u32, void *, u32, u8);
void *, u32, void *, u32, u8);
static int add_ref_cm_node(struct nes_cm_node *); static int add_ref_cm_node(struct nes_cm_node *);
static int rem_ref_cm_node(struct nes_cm_core *, struct nes_cm_node *); static int rem_ref_cm_node(struct nes_cm_core *, struct nes_cm_node *);
...@@ -111,16 +104,14 @@ static int send_syn(struct nes_cm_node *, u32, struct sk_buff *); ...@@ -111,16 +104,14 @@ static int send_syn(struct nes_cm_node *, u32, struct sk_buff *);
static int send_reset(struct nes_cm_node *, struct sk_buff *); static int send_reset(struct nes_cm_node *, struct sk_buff *);
static int send_ack(struct nes_cm_node *cm_node, struct sk_buff *skb); static int send_ack(struct nes_cm_node *cm_node, struct sk_buff *skb);
static int send_fin(struct nes_cm_node *cm_node, struct sk_buff *skb); static int send_fin(struct nes_cm_node *cm_node, struct sk_buff *skb);
static void process_packet(struct nes_cm_node *, struct sk_buff *, static void process_packet(struct nes_cm_node *, struct sk_buff *, struct nes_cm_core *);
struct nes_cm_core *);
static void active_open_err(struct nes_cm_node *, struct sk_buff *, int); static void active_open_err(struct nes_cm_node *, struct sk_buff *, int);
static void passive_open_err(struct nes_cm_node *, struct sk_buff *, int); static void passive_open_err(struct nes_cm_node *, struct sk_buff *, int);
static void cleanup_retrans_entry(struct nes_cm_node *); static void cleanup_retrans_entry(struct nes_cm_node *);
static void handle_rcv_mpa(struct nes_cm_node *, struct sk_buff *); static void handle_rcv_mpa(struct nes_cm_node *, struct sk_buff *);
static void free_retrans_entry(struct nes_cm_node *cm_node); static void free_retrans_entry(struct nes_cm_node *cm_node);
static int handle_tcp_options(struct nes_cm_node *cm_node, struct tcphdr *tcph, static int handle_tcp_options(struct nes_cm_node *cm_node, struct tcphdr *tcph, struct sk_buff *skb, int optionsize, int passive);
struct sk_buff *skb, int optionsize, int passive);
/* CM event handler functions */ /* CM event handler functions */
static void cm_event_connected(struct nes_cm_event *); static void cm_event_connected(struct nes_cm_event *);
...@@ -130,6 +121,12 @@ static void cm_event_mpa_req(struct nes_cm_event *); ...@@ -130,6 +121,12 @@ static void cm_event_mpa_req(struct nes_cm_event *);
static void cm_event_mpa_reject(struct nes_cm_event *); static void cm_event_mpa_reject(struct nes_cm_event *);
static void handle_recv_entry(struct nes_cm_node *cm_node, u32 rem_node); static void handle_recv_entry(struct nes_cm_node *cm_node, u32 rem_node);
/* MPA build functions */
static int cm_build_mpa_frame(struct nes_cm_node *, u8 **, u16 *, u8 *, u8);
static void build_mpa_v2(struct nes_cm_node *, void *, u8);
static void build_mpa_v1(struct nes_cm_node *, void *, u8);
static void build_rdma0_msg(struct nes_cm_node *, struct nes_qp **);
static void print_core(struct nes_cm_core *core); static void print_core(struct nes_cm_core *core);
/* External CM API Interface */ /* External CM API Interface */
...@@ -163,7 +160,7 @@ atomic_t cm_rejects; ...@@ -163,7 +160,7 @@ atomic_t cm_rejects;
/** /**
* create_event * create_event
*/ */
static struct nes_cm_event *create_event(struct nes_cm_node *cm_node, static struct nes_cm_event *create_event(struct nes_cm_node * cm_node,
enum nes_cm_event_type type) enum nes_cm_event_type type)
{ {
struct nes_cm_event *event; struct nes_cm_event *event;
...@@ -201,14 +198,19 @@ static struct nes_cm_event *create_event(struct nes_cm_node *cm_node, ...@@ -201,14 +198,19 @@ static struct nes_cm_event *create_event(struct nes_cm_node *cm_node,
*/ */
static int send_mpa_request(struct nes_cm_node *cm_node, struct sk_buff *skb) static int send_mpa_request(struct nes_cm_node *cm_node, struct sk_buff *skb)
{ {
u8 start_addr = 0;
u8 *start_ptr = &start_addr;
u8 **start_buff = &start_ptr;
u16 buff_len = 0;
if (!skb) { if (!skb) {
nes_debug(NES_DBG_CM, "skb set to NULL\n"); nes_debug(NES_DBG_CM, "skb set to NULL\n");
return -1; return -1;
} }
/* send an MPA Request frame */ /* send an MPA Request frame */
form_cm_frame(skb, cm_node, NULL, 0, &cm_node->mpa_frame, cm_build_mpa_frame(cm_node, start_buff, &buff_len, NULL, MPA_KEY_REQUEST);
cm_node->mpa_frame_size, SET_ACK); form_cm_frame(skb, cm_node, NULL, 0, *start_buff, buff_len, SET_ACK);
return schedule_nes_timer(cm_node, skb, NES_TIMER_TYPE_SEND, 1, 0); return schedule_nes_timer(cm_node, skb, NES_TIMER_TYPE_SEND, 1, 0);
} }
...@@ -218,6 +220,10 @@ static int send_mpa_request(struct nes_cm_node *cm_node, struct sk_buff *skb) ...@@ -218,6 +220,10 @@ static int send_mpa_request(struct nes_cm_node *cm_node, struct sk_buff *skb)
static int send_mpa_reject(struct nes_cm_node *cm_node) static int send_mpa_reject(struct nes_cm_node *cm_node)
{ {
struct sk_buff *skb = NULL; struct sk_buff *skb = NULL;
u8 start_addr = 0;
u8 *start_ptr = &start_addr;
u8 **start_buff = &start_ptr;
u16 buff_len = 0;
skb = dev_alloc_skb(MAX_CM_BUFFER); skb = dev_alloc_skb(MAX_CM_BUFFER);
if (!skb) { if (!skb) {
...@@ -226,8 +232,8 @@ static int send_mpa_reject(struct nes_cm_node *cm_node) ...@@ -226,8 +232,8 @@ static int send_mpa_reject(struct nes_cm_node *cm_node)
} }
/* send an MPA reject frame */ /* send an MPA reject frame */
form_cm_frame(skb, cm_node, NULL, 0, &cm_node->mpa_frame, cm_build_mpa_frame(cm_node, start_buff, &buff_len, NULL, MPA_KEY_REPLY);
cm_node->mpa_frame_size, SET_ACK | SET_FIN); form_cm_frame(skb, cm_node, NULL, 0, *start_buff, buff_len, SET_ACK | SET_FIN);
cm_node->state = NES_CM_STATE_FIN_WAIT1; cm_node->state = NES_CM_STATE_FIN_WAIT1;
return schedule_nes_timer(cm_node, skb, NES_TIMER_TYPE_SEND, 1, 0); return schedule_nes_timer(cm_node, skb, NES_TIMER_TYPE_SEND, 1, 0);
...@@ -241,20 +247,27 @@ static int send_mpa_reject(struct nes_cm_node *cm_node) ...@@ -241,20 +247,27 @@ static int send_mpa_reject(struct nes_cm_node *cm_node)
static int parse_mpa(struct nes_cm_node *cm_node, u8 *buffer, u32 *type, static int parse_mpa(struct nes_cm_node *cm_node, u8 *buffer, u32 *type,
u32 len) u32 len)
{ {
struct ietf_mpa_frame *mpa_frame; struct ietf_mpa_v1 *mpa_frame;
struct ietf_mpa_v2 *mpa_v2_frame;
struct ietf_rtr_msg *rtr_msg;
int mpa_hdr_len;
int priv_data_len;
*type = NES_MPA_REQUEST_ACCEPT; *type = NES_MPA_REQUEST_ACCEPT;
/* assume req frame is in tcp data payload */ /* assume req frame is in tcp data payload */
if (len < sizeof(struct ietf_mpa_frame)) { if (len < sizeof(struct ietf_mpa_v1)) {
nes_debug(NES_DBG_CM, "The received ietf buffer was too small (%x)\n", len); nes_debug(NES_DBG_CM, "The received ietf buffer was too small (%x)\n", len);
return -EINVAL; return -EINVAL;
} }
mpa_frame = (struct ietf_mpa_frame *)buffer; /* points to the beginning of the frame, which could be MPA V1 or V2 */
cm_node->mpa_frame_size = ntohs(mpa_frame->priv_data_len); mpa_frame = (struct ietf_mpa_v1 *)buffer;
mpa_hdr_len = sizeof(struct ietf_mpa_v1);
priv_data_len = ntohs(mpa_frame->priv_data_len);
/* make sure mpa private data len is less than 512 bytes */ /* make sure mpa private data len is less than 512 bytes */
if (cm_node->mpa_frame_size > IETF_MAX_PRIV_DATA_LEN) { if (priv_data_len > IETF_MAX_PRIV_DATA_LEN) {
nes_debug(NES_DBG_CM, "The received Length of Private" nes_debug(NES_DBG_CM, "The received Length of Private"
" Data field exceeds 512 octets\n"); " Data field exceeds 512 octets\n");
return -EINVAL; return -EINVAL;
...@@ -264,11 +277,22 @@ static int parse_mpa(struct nes_cm_node *cm_node, u8 *buffer, u32 *type, ...@@ -264,11 +277,22 @@ static int parse_mpa(struct nes_cm_node *cm_node, u8 *buffer, u32 *type,
* received MPA version and MPA key information * received MPA version and MPA key information
* *
*/ */
if (mpa_frame->rev != mpa_version) { if (mpa_frame->rev != IETF_MPA_V1 && mpa_frame->rev != IETF_MPA_V2) {
nes_debug(NES_DBG_CM, "The received mpa version"
" is not supported\n");
return -EINVAL;
}
/*
* backwards compatibility only
*/
if (mpa_frame->rev > cm_node->mpa_frame_rev) {
nes_debug(NES_DBG_CM, "The received mpa version" nes_debug(NES_DBG_CM, "The received mpa version"
" can not be interoperated\n"); " can not be interoperated\n");
return -EINVAL; return -EINVAL;
} else {
cm_node->mpa_frame_rev = mpa_frame->rev;
} }
if (cm_node->state != NES_CM_STATE_MPAREQ_SENT) { if (cm_node->state != NES_CM_STATE_MPAREQ_SENT) {
if (memcmp(mpa_frame->key, IEFT_MPA_KEY_REQ, IETF_MPA_KEY_SIZE)) { if (memcmp(mpa_frame->key, IEFT_MPA_KEY_REQ, IETF_MPA_KEY_SIZE)) {
nes_debug(NES_DBG_CM, "Unexpected MPA Key received \n"); nes_debug(NES_DBG_CM, "Unexpected MPA Key received \n");
...@@ -281,25 +305,75 @@ static int parse_mpa(struct nes_cm_node *cm_node, u8 *buffer, u32 *type, ...@@ -281,25 +305,75 @@ static int parse_mpa(struct nes_cm_node *cm_node, u8 *buffer, u32 *type,
} }
} }
if (cm_node->mpa_frame_size + sizeof(struct ietf_mpa_frame) != len) {
if (priv_data_len + mpa_hdr_len != len) {
nes_debug(NES_DBG_CM, "The received ietf buffer was not right" nes_debug(NES_DBG_CM, "The received ietf buffer was not right"
" complete (%x + %x != %x)\n", " complete (%x + %x != %x)\n",
cm_node->mpa_frame_size, priv_data_len, mpa_hdr_len, len);
(u32)sizeof(struct ietf_mpa_frame), len);
return -EINVAL; return -EINVAL;
} }
/* make sure it does not exceed the max size */ /* make sure it does not exceed the max size */
if (len > MAX_CM_BUFFER) { if (len > MAX_CM_BUFFER) {
nes_debug(NES_DBG_CM, "The received ietf buffer was too large" nes_debug(NES_DBG_CM, "The received ietf buffer was too large"
" (%x + %x != %x)\n", " (%x + %x != %x)\n",
cm_node->mpa_frame_size, priv_data_len, mpa_hdr_len, len);
(u32)sizeof(struct ietf_mpa_frame), len); return -EINVAL;
}
cm_node->mpa_frame_size = priv_data_len;
switch (mpa_frame->rev) {
case IETF_MPA_V2: {
u16 ird_size;
u16 ord_size;
mpa_v2_frame = (struct ietf_mpa_v2 *)buffer;
mpa_hdr_len += IETF_RTR_MSG_SIZE;
cm_node->mpa_frame_size -= IETF_RTR_MSG_SIZE;
rtr_msg = &mpa_v2_frame->rtr_msg;
/* parse rtr message */
rtr_msg->ctrl_ird = ntohs(rtr_msg->ctrl_ird);
rtr_msg->ctrl_ord = ntohs(rtr_msg->ctrl_ord);
ird_size = rtr_msg->ctrl_ird & IETF_NO_IRD_ORD;
ord_size = rtr_msg->ctrl_ord & IETF_NO_IRD_ORD;
if (!(rtr_msg->ctrl_ird & IETF_PEER_TO_PEER)) {
/* send reset */
return -EINVAL;
}
if (cm_node->state != NES_CM_STATE_MPAREQ_SENT) {
/* responder */
if (cm_node->ord_size > ird_size)
cm_node->ord_size = ird_size;
} else {
/* initiator */
if (cm_node->ord_size > ird_size)
cm_node->ord_size = ird_size;
if (cm_node->ird_size < ord_size) {
/* no resources available */
/* send terminate message */
return -EINVAL;
}
}
if (rtr_msg->ctrl_ord & IETF_RDMA0_READ) {
cm_node->send_rdma0_op = SEND_RDMA_READ_ZERO;
} else if (rtr_msg->ctrl_ord & IETF_RDMA0_WRITE) {
cm_node->send_rdma0_op = SEND_RDMA_WRITE_ZERO;
} else { /* Not supported RDMA0 operation */
return -EINVAL; return -EINVAL;
} }
break;
}
case IETF_MPA_V1:
default:
break;
}
/* copy entire MPA frame to our cm_node's frame */ /* copy entire MPA frame to our cm_node's frame */
memcpy(cm_node->mpa_frame_buf, buffer + sizeof(struct ietf_mpa_frame), memcpy(cm_node->mpa_frame_buf, buffer + mpa_hdr_len, cm_node->mpa_frame_size);
cm_node->mpa_frame_size);
if (mpa_frame->flags & IETF_MPA_FLAGS_REJECT) if (mpa_frame->flags & IETF_MPA_FLAGS_REJECT)
*type = NES_MPA_REQUEST_REJECT; *type = NES_MPA_REQUEST_REJECT;
...@@ -324,12 +398,12 @@ static void form_cm_frame(struct sk_buff *skb, ...@@ -324,12 +398,12 @@ static void form_cm_frame(struct sk_buff *skb,
packetsize += sizeof(*tcph); packetsize += sizeof(*tcph);
packetsize += optionsize + datasize; packetsize += optionsize + datasize;
skb_trim(skb, 0);
memset(skb->data, 0x00, ETH_HLEN + sizeof(*iph) + sizeof(*tcph)); memset(skb->data, 0x00, ETH_HLEN + sizeof(*iph) + sizeof(*tcph));
skb->len = 0;
buf = skb_put(skb, packetsize + ETH_HLEN); buf = skb_put(skb, packetsize + ETH_HLEN);
ethh = (struct ethhdr *) buf; ethh = (struct ethhdr *)buf;
buf += ETH_HLEN; buf += ETH_HLEN;
iph = (struct iphdr *)buf; iph = (struct iphdr *)buf;
...@@ -337,7 +411,7 @@ static void form_cm_frame(struct sk_buff *skb, ...@@ -337,7 +411,7 @@ static void form_cm_frame(struct sk_buff *skb,
tcph = (struct tcphdr *)buf; tcph = (struct tcphdr *)buf;
skb_reset_mac_header(skb); skb_reset_mac_header(skb);
skb_set_network_header(skb, ETH_HLEN); skb_set_network_header(skb, ETH_HLEN);
skb_set_transport_header(skb, ETH_HLEN+sizeof(*iph)); skb_set_transport_header(skb, ETH_HLEN + sizeof(*iph));
buf += sizeof(*tcph); buf += sizeof(*tcph);
skb->ip_summed = CHECKSUM_PARTIAL; skb->ip_summed = CHECKSUM_PARTIAL;
...@@ -370,14 +444,16 @@ static void form_cm_frame(struct sk_buff *skb, ...@@ -370,14 +444,16 @@ static void form_cm_frame(struct sk_buff *skb,
cm_node->tcp_cntxt.loc_ack_num = cm_node->tcp_cntxt.rcv_nxt; cm_node->tcp_cntxt.loc_ack_num = cm_node->tcp_cntxt.rcv_nxt;
tcph->ack_seq = htonl(cm_node->tcp_cntxt.loc_ack_num); tcph->ack_seq = htonl(cm_node->tcp_cntxt.loc_ack_num);
tcph->ack = 1; tcph->ack = 1;
} else } else {
tcph->ack_seq = 0; tcph->ack_seq = 0;
}
if (flags & SET_SYN) { if (flags & SET_SYN) {
cm_node->tcp_cntxt.loc_seq_num++; cm_node->tcp_cntxt.loc_seq_num++;
tcph->syn = 1; tcph->syn = 1;
} else } else {
cm_node->tcp_cntxt.loc_seq_num += datasize; cm_node->tcp_cntxt.loc_seq_num += datasize;
}
if (flags & SET_FIN) { if (flags & SET_FIN) {
cm_node->tcp_cntxt.loc_seq_num++; cm_node->tcp_cntxt.loc_seq_num++;
...@@ -398,10 +474,8 @@ static void form_cm_frame(struct sk_buff *skb, ...@@ -398,10 +474,8 @@ static void form_cm_frame(struct sk_buff *skb,
skb_shinfo(skb)->nr_frags = 0; skb_shinfo(skb)->nr_frags = 0;
cm_packets_created++; cm_packets_created++;
} }
/** /**
* print_core - dump a cm core * print_core - dump a cm core
*/ */
...@@ -423,6 +497,147 @@ static void print_core(struct nes_cm_core *core) ...@@ -423,6 +497,147 @@ static void print_core(struct nes_cm_core *core)
nes_debug(NES_DBG_CM, "-------------- end core ---------------\n"); nes_debug(NES_DBG_CM, "-------------- end core ---------------\n");
} }
/**
* cm_build_mpa_frame - build a MPA V1 frame or MPA V2 frame
*/
static int cm_build_mpa_frame(struct nes_cm_node *cm_node, u8 **start_buff,
u16 *buff_len, u8 *pci_mem, u8 mpa_key)
{
int ret = 0;
*start_buff = (pci_mem) ? pci_mem : &cm_node->mpa_frame_buf[0];
switch (cm_node->mpa_frame_rev) {
case IETF_MPA_V1:
*start_buff = (u8 *)*start_buff + sizeof(struct ietf_rtr_msg);
*buff_len = sizeof(struct ietf_mpa_v1) + cm_node->mpa_frame_size;
build_mpa_v1(cm_node, *start_buff, mpa_key);
break;
case IETF_MPA_V2:
*buff_len = sizeof(struct ietf_mpa_v2) + cm_node->mpa_frame_size;
build_mpa_v2(cm_node, *start_buff, mpa_key);
break;
default:
ret = -EINVAL;
}
return ret;
}
/**
* build_mpa_v2 - build a MPA V2 frame
*/
static void build_mpa_v2(struct nes_cm_node *cm_node,
void *start_addr, u8 mpa_key)
{
struct ietf_mpa_v2 *mpa_frame = (struct ietf_mpa_v2 *)start_addr;
struct ietf_rtr_msg *rtr_msg = &mpa_frame->rtr_msg;
/* initialize the upper 5 bytes of the frame */
build_mpa_v1(cm_node, start_addr, mpa_key);
mpa_frame->flags |= IETF_MPA_V2_FLAG; /* set a bit to indicate MPA V2 */
mpa_frame->priv_data_len += htons(IETF_RTR_MSG_SIZE);
/* initialize RTR msg */
rtr_msg->ctrl_ird = (cm_node->ird_size > IETF_NO_IRD_ORD) ?
IETF_NO_IRD_ORD : cm_node->ird_size;
rtr_msg->ctrl_ord = (cm_node->ord_size > IETF_NO_IRD_ORD) ?
IETF_NO_IRD_ORD : cm_node->ord_size;
rtr_msg->ctrl_ird |= IETF_PEER_TO_PEER;
rtr_msg->ctrl_ird |= IETF_FLPDU_ZERO_LEN;
switch (mpa_key) {
case MPA_KEY_REQUEST:
rtr_msg->ctrl_ord |= IETF_RDMA0_WRITE;
rtr_msg->ctrl_ord |= IETF_RDMA0_READ;
break;
case MPA_KEY_REPLY:
switch (cm_node->send_rdma0_op) {
case SEND_RDMA_WRITE_ZERO:
rtr_msg->ctrl_ord |= IETF_RDMA0_WRITE;
break;
case SEND_RDMA_READ_ZERO:
rtr_msg->ctrl_ord |= IETF_RDMA0_READ;
break;
}
}
rtr_msg->ctrl_ird = htons(rtr_msg->ctrl_ird);
rtr_msg->ctrl_ord = htons(rtr_msg->ctrl_ord);
}
/**
* build_mpa_v1 - build a MPA V1 frame
*/
static void build_mpa_v1(struct nes_cm_node *cm_node, void *start_addr, u8 mpa_key)
{
struct ietf_mpa_v1 *mpa_frame = (struct ietf_mpa_v1 *)start_addr;
switch (mpa_key) {
case MPA_KEY_REQUEST:
memcpy(mpa_frame->key, IEFT_MPA_KEY_REQ, IETF_MPA_KEY_SIZE);
break;
case MPA_KEY_REPLY:
memcpy(mpa_frame->key, IEFT_MPA_KEY_REP, IETF_MPA_KEY_SIZE);
break;
}
mpa_frame->flags = IETF_MPA_FLAGS_CRC;
mpa_frame->rev = cm_node->mpa_frame_rev;
mpa_frame->priv_data_len = htons(cm_node->mpa_frame_size);
}
static void build_rdma0_msg(struct nes_cm_node *cm_node, struct nes_qp **nesqp_addr)
{
u64 u64temp;
struct nes_qp *nesqp = *nesqp_addr;
struct nes_hw_qp_wqe *wqe = &nesqp->hwqp.sq_vbase[0];
u64temp = (unsigned long)nesqp;
u64temp |= NES_SW_CONTEXT_ALIGN >> 1;
set_wqe_64bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_COMP_CTX_LOW_IDX, u64temp);
wqe->wqe_words[NES_IWARP_SQ_WQE_FRAG0_LOW_IDX] = 0;
wqe->wqe_words[NES_IWARP_SQ_WQE_FRAG0_HIGH_IDX] = 0;
switch (cm_node->send_rdma0_op) {
case SEND_RDMA_WRITE_ZERO:
nes_debug(NES_DBG_CM, "Sending first write.\n");
wqe->wqe_words[NES_IWARP_SQ_WQE_MISC_IDX] =
cpu_to_le32(NES_IWARP_SQ_OP_RDMAW);
wqe->wqe_words[NES_IWARP_SQ_WQE_TOTAL_PAYLOAD_IDX] = 0;
wqe->wqe_words[NES_IWARP_SQ_WQE_LENGTH0_IDX] = 0;
wqe->wqe_words[NES_IWARP_SQ_WQE_STAG0_IDX] = 0;
break;
case SEND_RDMA_READ_ZERO:
default:
if (cm_node->send_rdma0_op != SEND_RDMA_READ_ZERO) {
printk(KERN_ERR "%s[%u]: Unsupported RDMA0 len operation=%u\n",
__func__, __LINE__, cm_node->send_rdma0_op);
WARN_ON(1);
}
nes_debug(NES_DBG_CM, "Sending first rdma operation.\n");
wqe->wqe_words[NES_IWARP_SQ_WQE_MISC_IDX] =
cpu_to_le32(NES_IWARP_SQ_OP_RDMAR);
wqe->wqe_words[NES_IWARP_SQ_WQE_RDMA_TO_LOW_IDX] = 1;
wqe->wqe_words[NES_IWARP_SQ_WQE_RDMA_TO_HIGH_IDX] = 0;
wqe->wqe_words[NES_IWARP_SQ_WQE_RDMA_LENGTH_IDX] = 0;
wqe->wqe_words[NES_IWARP_SQ_WQE_RDMA_STAG_IDX] = 1;
wqe->wqe_words[NES_IWARP_SQ_WQE_STAG0_IDX] = 1;
break;
}
if (nesqp->sq_kmapped) {
nesqp->sq_kmapped = 0;
kunmap(nesqp->page);
}
/*use the reserved spot on the WQ for the extra first WQE*/
nesqp->nesqp_context->ird_ord_sizes &= cpu_to_le32(~(NES_QPCONTEXT_ORDIRD_LSMM_PRESENT |
NES_QPCONTEXT_ORDIRD_WRPDU |
NES_QPCONTEXT_ORDIRD_ALSMM));
nesqp->skip_lsmm = 1;
nesqp->hwqp.sq_tail = 0;
}
/** /**
* schedule_nes_timer * schedule_nes_timer
...@@ -454,7 +669,7 @@ int schedule_nes_timer(struct nes_cm_node *cm_node, struct sk_buff *skb, ...@@ -454,7 +669,7 @@ int schedule_nes_timer(struct nes_cm_node *cm_node, struct sk_buff *skb,
new_send->close_when_complete = close_when_complete; new_send->close_when_complete = close_when_complete;
if (type == NES_TIMER_TYPE_CLOSE) { if (type == NES_TIMER_TYPE_CLOSE) {
new_send->timetosend += (HZ/10); new_send->timetosend += (HZ / 10);
if (cm_node->recv_entry) { if (cm_node->recv_entry) {
kfree(new_send); kfree(new_send);
WARN_ON(1); WARN_ON(1);
...@@ -504,6 +719,7 @@ static void nes_retrans_expired(struct nes_cm_node *cm_node) ...@@ -504,6 +719,7 @@ static void nes_retrans_expired(struct nes_cm_node *cm_node)
struct iw_cm_id *cm_id = cm_node->cm_id; struct iw_cm_id *cm_id = cm_node->cm_id;
enum nes_cm_node_state state = cm_node->state; enum nes_cm_node_state state = cm_node->state;
cm_node->state = NES_CM_STATE_CLOSED; cm_node->state = NES_CM_STATE_CLOSED;
switch (state) { switch (state) {
case NES_CM_STATE_SYN_RCVD: case NES_CM_STATE_SYN_RCVD:
case NES_CM_STATE_CLOSING: case NES_CM_STATE_CLOSING:
...@@ -580,6 +796,7 @@ static void nes_cm_timer_tick(unsigned long pass) ...@@ -580,6 +796,7 @@ static void nes_cm_timer_tick(unsigned long pass)
int ret = NETDEV_TX_OK; int ret = NETDEV_TX_OK;
struct list_head timer_list; struct list_head timer_list;
INIT_LIST_HEAD(&timer_list); INIT_LIST_HEAD(&timer_list);
spin_lock_irqsave(&cm_core->ht_lock, flags); spin_lock_irqsave(&cm_core->ht_lock, flags);
...@@ -605,9 +822,10 @@ static void nes_cm_timer_tick(unsigned long pass) ...@@ -605,9 +822,10 @@ static void nes_cm_timer_tick(unsigned long pass)
nexttimeout = recv_entry->timetosend; nexttimeout = recv_entry->timetosend;
settimer = 1; settimer = 1;
} }
} else } else {
handle_recv_entry(cm_node, 1); handle_recv_entry(cm_node, 1);
} }
}
spin_lock_irqsave(&cm_node->retrans_list_lock, flags); spin_lock_irqsave(&cm_node->retrans_list_lock, flags);
do { do {
...@@ -1035,10 +1253,9 @@ static int mini_cm_dec_refcnt_listen(struct nes_cm_core *cm_core, ...@@ -1035,10 +1253,9 @@ static int mini_cm_dec_refcnt_listen(struct nes_cm_core *cm_core,
spin_unlock_irqrestore(&cm_core->listen_list_lock, flags); spin_unlock_irqrestore(&cm_core->listen_list_lock, flags);
if (listener->nesvnic) { if (listener->nesvnic)
nes_manage_apbvt(listener->nesvnic, listener->loc_port, nes_manage_apbvt(listener->nesvnic, listener->loc_port,
PCI_FUNC(listener->nesvnic->nesdev->pcidev->devfn), NES_MANAGE_APBVT_DEL); PCI_FUNC(listener->nesvnic->nesdev->pcidev->devfn), NES_MANAGE_APBVT_DEL);
}
nes_debug(NES_DBG_CM, "destroying listener (%p)\n", listener); nes_debug(NES_DBG_CM, "destroying listener (%p)\n", listener);
...@@ -1079,6 +1296,7 @@ static inline int mini_cm_accelerated(struct nes_cm_core *cm_core, ...@@ -1079,6 +1296,7 @@ static inline int mini_cm_accelerated(struct nes_cm_core *cm_core,
struct nes_cm_node *cm_node) struct nes_cm_node *cm_node)
{ {
u32 was_timer_set; u32 was_timer_set;
cm_node->accelerated = 1; cm_node->accelerated = 1;
if (cm_node->accept_pend) { if (cm_node->accept_pend) {
...@@ -1130,7 +1348,7 @@ static int nes_addr_resolve_neigh(struct nes_vnic *nesvnic, u32 dst_ip, int arpi ...@@ -1130,7 +1348,7 @@ static int nes_addr_resolve_neigh(struct nes_vnic *nesvnic, u32 dst_ip, int arpi
if (arpindex >= 0) { if (arpindex >= 0) {
if (!memcmp(nesadapter->arp_table[arpindex].mac_addr, if (!memcmp(nesadapter->arp_table[arpindex].mac_addr,
neigh->ha, ETH_ALEN)){ neigh->ha, ETH_ALEN)) {
/* Mac address same as in nes_arp_table */ /* Mac address same as in nes_arp_table */
neigh_release(neigh); neigh_release(neigh);
ip_rt_put(rt); ip_rt_put(rt);
...@@ -1181,7 +1399,12 @@ static struct nes_cm_node *make_cm_node(struct nes_cm_core *cm_core, ...@@ -1181,7 +1399,12 @@ static struct nes_cm_node *make_cm_node(struct nes_cm_core *cm_core,
cm_node->rem_addr = cm_info->rem_addr; cm_node->rem_addr = cm_info->rem_addr;
cm_node->loc_port = cm_info->loc_port; cm_node->loc_port = cm_info->loc_port;
cm_node->rem_port = cm_info->rem_port; cm_node->rem_port = cm_info->rem_port;
cm_node->send_write0 = send_first;
cm_node->mpa_frame_rev = mpa_version;
cm_node->send_rdma0_op = SEND_RDMA_READ_ZERO;
cm_node->ird_size = IETF_NO_IRD_ORD;
cm_node->ord_size = IETF_NO_IRD_ORD;
nes_debug(NES_DBG_CM, "Make node addresses : loc = %pI4:%x, rem = %pI4:%x\n", nes_debug(NES_DBG_CM, "Make node addresses : loc = %pI4:%x, rem = %pI4:%x\n",
&cm_node->loc_addr, cm_node->loc_port, &cm_node->loc_addr, cm_node->loc_port,
&cm_node->rem_addr, cm_node->rem_port); &cm_node->rem_addr, cm_node->rem_port);
...@@ -1222,12 +1445,11 @@ static struct nes_cm_node *make_cm_node(struct nes_cm_core *cm_core, ...@@ -1222,12 +1445,11 @@ static struct nes_cm_node *make_cm_node(struct nes_cm_core *cm_core,
cm_node->loopbackpartner = NULL; cm_node->loopbackpartner = NULL;
/* get the mac addr for the remote node */ /* get the mac addr for the remote node */
if (ipv4_is_loopback(htonl(cm_node->rem_addr))) if (ipv4_is_loopback(htonl(cm_node->rem_addr))) {
arpindex = nes_arp_table(nesdev, ntohl(nesvnic->local_ipaddr), NULL, NES_ARP_RESOLVE); arpindex = nes_arp_table(nesdev, ntohl(nesvnic->local_ipaddr), NULL, NES_ARP_RESOLVE);
else { } else {
oldarpindex = nes_arp_table(nesdev, cm_node->rem_addr, NULL, NES_ARP_RESOLVE); oldarpindex = nes_arp_table(nesdev, cm_node->rem_addr, NULL, NES_ARP_RESOLVE);
arpindex = nes_addr_resolve_neigh(nesvnic, cm_info->rem_addr, oldarpindex); arpindex = nes_addr_resolve_neigh(nesvnic, cm_info->rem_addr, oldarpindex);
} }
if (arpindex < 0) { if (arpindex < 0) {
kfree(cm_node); kfree(cm_node);
...@@ -1348,9 +1570,6 @@ static int process_options(struct nes_cm_node *cm_node, u8 *optionsloc, ...@@ -1348,9 +1570,6 @@ static int process_options(struct nes_cm_node *cm_node, u8 *optionsloc,
cm_node->tcp_cntxt.snd_wscale = cm_node->tcp_cntxt.snd_wscale =
all_options->as_windowscale.shiftcount; all_options->as_windowscale.shiftcount;
break; break;
case OPTION_NUMBER_WRITE0:
cm_node->send_write0 = 1;
break;
default: default:
nes_debug(NES_DBG_CM, "TCP Option not understood: %x\n", nes_debug(NES_DBG_CM, "TCP Option not understood: %x\n",
all_options->as_base.optionnum); all_options->as_base.optionnum);
...@@ -1439,8 +1658,21 @@ static void handle_rst_pkt(struct nes_cm_node *cm_node, struct sk_buff *skb, ...@@ -1439,8 +1658,21 @@ static void handle_rst_pkt(struct nes_cm_node *cm_node, struct sk_buff *skb,
nes_debug(NES_DBG_CM, "%s[%u] create abort for cm_node=%p " nes_debug(NES_DBG_CM, "%s[%u] create abort for cm_node=%p "
"listener=%p state=%d\n", __func__, __LINE__, cm_node, "listener=%p state=%d\n", __func__, __LINE__, cm_node,
cm_node->listener, cm_node->state); cm_node->listener, cm_node->state);
switch (cm_node->mpa_frame_rev) {
case IETF_MPA_V2:
cm_node->mpa_frame_rev = IETF_MPA_V1;
/* send a syn and goto syn sent state */
cm_node->state = NES_CM_STATE_SYN_SENT;
if (send_syn(cm_node, 0, NULL)) {
active_open_err(cm_node, skb, reset);
}
break;
case IETF_MPA_V1:
default:
active_open_err(cm_node, skb, reset); active_open_err(cm_node, skb, reset);
break; break;
}
break;
case NES_CM_STATE_MPAREQ_RCVD: case NES_CM_STATE_MPAREQ_RCVD:
atomic_inc(&cm_node->passive_state); atomic_inc(&cm_node->passive_state);
dev_kfree_skb_any(skb); dev_kfree_skb_any(skb);
...@@ -1475,13 +1707,13 @@ static void handle_rst_pkt(struct nes_cm_node *cm_node, struct sk_buff *skb, ...@@ -1475,13 +1707,13 @@ static void handle_rst_pkt(struct nes_cm_node *cm_node, struct sk_buff *skb,
static void handle_rcv_mpa(struct nes_cm_node *cm_node, struct sk_buff *skb) static void handle_rcv_mpa(struct nes_cm_node *cm_node, struct sk_buff *skb)
{ {
int ret = 0; int ret = 0;
int datasize = skb->len; int datasize = skb->len;
u8 *dataloc = skb->data; u8 *dataloc = skb->data;
enum nes_cm_event_type type = NES_CM_EVENT_UNKNOWN; enum nes_cm_event_type type = NES_CM_EVENT_UNKNOWN;
u32 res_type; u32 res_type;
ret = parse_mpa(cm_node, dataloc, &res_type, datasize); ret = parse_mpa(cm_node, dataloc, &res_type, datasize);
if (ret) { if (ret) {
nes_debug(NES_DBG_CM, "didn't like MPA Request\n"); nes_debug(NES_DBG_CM, "didn't like MPA Request\n");
...@@ -1499,12 +1731,11 @@ static void handle_rcv_mpa(struct nes_cm_node *cm_node, struct sk_buff *skb) ...@@ -1499,12 +1731,11 @@ static void handle_rcv_mpa(struct nes_cm_node *cm_node, struct sk_buff *skb)
switch (cm_node->state) { switch (cm_node->state) {
case NES_CM_STATE_ESTABLISHED: case NES_CM_STATE_ESTABLISHED:
if (res_type == NES_MPA_REQUEST_REJECT) { if (res_type == NES_MPA_REQUEST_REJECT)
/*BIG problem as we are receiving the MPA.. So should /*BIG problem as we are receiving the MPA.. So should
* not be REJECT.. This is Passive Open.. We can * not be REJECT.. This is Passive Open.. We can
* only receive it Reject for Active Open...*/ * only receive it Reject for Active Open...*/
WARN_ON(1); WARN_ON(1);
}
cm_node->state = NES_CM_STATE_MPAREQ_RCVD; cm_node->state = NES_CM_STATE_MPAREQ_RCVD;
type = NES_CM_EVENT_MPA_REQ; type = NES_CM_EVENT_MPA_REQ;
atomic_set(&cm_node->passive_state, atomic_set(&cm_node->passive_state,
...@@ -1554,7 +1785,7 @@ static int check_syn(struct nes_cm_node *cm_node, struct tcphdr *tcph, ...@@ -1554,7 +1785,7 @@ static int check_syn(struct nes_cm_node *cm_node, struct tcphdr *tcph,
{ {
int err; int err;
err = ((ntohl(tcph->ack_seq) == cm_node->tcp_cntxt.loc_seq_num))? 0 : 1; err = ((ntohl(tcph->ack_seq) == cm_node->tcp_cntxt.loc_seq_num)) ? 0 : 1;
if (err) if (err)
active_open_err(cm_node, skb, 1); active_open_err(cm_node, skb, 1);
...@@ -1570,12 +1801,13 @@ static int check_seq(struct nes_cm_node *cm_node, struct tcphdr *tcph, ...@@ -1570,12 +1801,13 @@ static int check_seq(struct nes_cm_node *cm_node, struct tcphdr *tcph,
u32 loc_seq_num = cm_node->tcp_cntxt.loc_seq_num; u32 loc_seq_num = cm_node->tcp_cntxt.loc_seq_num;
u32 rcv_nxt = cm_node->tcp_cntxt.rcv_nxt; u32 rcv_nxt = cm_node->tcp_cntxt.rcv_nxt;
u32 rcv_wnd; u32 rcv_wnd;
seq = ntohl(tcph->seq); seq = ntohl(tcph->seq);
ack_seq = ntohl(tcph->ack_seq); ack_seq = ntohl(tcph->ack_seq);
rcv_wnd = cm_node->tcp_cntxt.rcv_wnd; rcv_wnd = cm_node->tcp_cntxt.rcv_wnd;
if (ack_seq != loc_seq_num) if (ack_seq != loc_seq_num)
err = 1; err = 1;
else if (!between(seq, rcv_nxt, (rcv_nxt+rcv_wnd))) else if (!between(seq, rcv_nxt, (rcv_nxt + rcv_wnd)))
err = 1; err = 1;
if (err) { if (err) {
nes_debug(NES_DBG_CM, "%s[%u] create abort for cm_node=%p " nes_debug(NES_DBG_CM, "%s[%u] create abort for cm_node=%p "
...@@ -1594,7 +1826,6 @@ static int check_seq(struct nes_cm_node *cm_node, struct tcphdr *tcph, ...@@ -1594,7 +1826,6 @@ static int check_seq(struct nes_cm_node *cm_node, struct tcphdr *tcph,
* is created with a listener or it may comein as rexmitted packet which in * is created with a listener or it may comein as rexmitted packet which in
* that case will be just dropped. * that case will be just dropped.
*/ */
static void handle_syn_pkt(struct nes_cm_node *cm_node, struct sk_buff *skb, static void handle_syn_pkt(struct nes_cm_node *cm_node, struct sk_buff *skb,
struct tcphdr *tcph) struct tcphdr *tcph)
{ {
...@@ -1659,7 +1890,6 @@ static void handle_syn_pkt(struct nes_cm_node *cm_node, struct sk_buff *skb, ...@@ -1659,7 +1890,6 @@ static void handle_syn_pkt(struct nes_cm_node *cm_node, struct sk_buff *skb,
static void handle_synack_pkt(struct nes_cm_node *cm_node, struct sk_buff *skb, static void handle_synack_pkt(struct nes_cm_node *cm_node, struct sk_buff *skb,
struct tcphdr *tcph) struct tcphdr *tcph)
{ {
int ret; int ret;
u32 inc_sequence; u32 inc_sequence;
int optionsize; int optionsize;
...@@ -1723,6 +1953,7 @@ static int handle_ack_pkt(struct nes_cm_node *cm_node, struct sk_buff *skb, ...@@ -1723,6 +1953,7 @@ static int handle_ack_pkt(struct nes_cm_node *cm_node, struct sk_buff *skb,
u32 inc_sequence; u32 inc_sequence;
int ret = 0; int ret = 0;
int optionsize; int optionsize;
optionsize = (tcph->doff << 2) - sizeof(struct tcphdr); optionsize = (tcph->doff << 2) - sizeof(struct tcphdr);
if (check_seq(cm_node, tcph, skb)) if (check_seq(cm_node, tcph, skb))
...@@ -1743,8 +1974,9 @@ static int handle_ack_pkt(struct nes_cm_node *cm_node, struct sk_buff *skb, ...@@ -1743,8 +1974,9 @@ static int handle_ack_pkt(struct nes_cm_node *cm_node, struct sk_buff *skb,
if (datasize) { if (datasize) {
cm_node->tcp_cntxt.rcv_nxt = inc_sequence + datasize; cm_node->tcp_cntxt.rcv_nxt = inc_sequence + datasize;
handle_rcv_mpa(cm_node, skb); handle_rcv_mpa(cm_node, skb);
} else /* rcvd ACK only */ } else { /* rcvd ACK only */
dev_kfree_skb_any(skb); dev_kfree_skb_any(skb);
}
break; break;
case NES_CM_STATE_ESTABLISHED: case NES_CM_STATE_ESTABLISHED:
/* Passive OPEN */ /* Passive OPEN */
...@@ -1752,16 +1984,18 @@ static int handle_ack_pkt(struct nes_cm_node *cm_node, struct sk_buff *skb, ...@@ -1752,16 +1984,18 @@ static int handle_ack_pkt(struct nes_cm_node *cm_node, struct sk_buff *skb,
if (datasize) { if (datasize) {
cm_node->tcp_cntxt.rcv_nxt = inc_sequence + datasize; cm_node->tcp_cntxt.rcv_nxt = inc_sequence + datasize;
handle_rcv_mpa(cm_node, skb); handle_rcv_mpa(cm_node, skb);
} else } else {
drop_packet(skb); drop_packet(skb);
}
break; break;
case NES_CM_STATE_MPAREQ_SENT: case NES_CM_STATE_MPAREQ_SENT:
cm_node->tcp_cntxt.rem_ack_num = ntohl(tcph->ack_seq); cm_node->tcp_cntxt.rem_ack_num = ntohl(tcph->ack_seq);
if (datasize) { if (datasize) {
cm_node->tcp_cntxt.rcv_nxt = inc_sequence + datasize; cm_node->tcp_cntxt.rcv_nxt = inc_sequence + datasize;
handle_rcv_mpa(cm_node, skb); handle_rcv_mpa(cm_node, skb);
} else /* Could be just an ack pkt.. */ } else { /* Could be just an ack pkt.. */
dev_kfree_skb_any(skb); dev_kfree_skb_any(skb);
}
break; break;
case NES_CM_STATE_LISTENING: case NES_CM_STATE_LISTENING:
cleanup_retrans_entry(cm_node); cleanup_retrans_entry(cm_node);
...@@ -1805,6 +2039,7 @@ static int handle_tcp_options(struct nes_cm_node *cm_node, struct tcphdr *tcph, ...@@ -1805,6 +2039,7 @@ static int handle_tcp_options(struct nes_cm_node *cm_node, struct tcphdr *tcph,
struct sk_buff *skb, int optionsize, int passive) struct sk_buff *skb, int optionsize, int passive)
{ {
u8 *optionsloc = (u8 *)&tcph[1]; u8 *optionsloc = (u8 *)&tcph[1];
if (optionsize) { if (optionsize) {
if (process_options(cm_node, optionsloc, optionsize, if (process_options(cm_node, optionsloc, optionsize,
(u32)tcph->syn)) { (u32)tcph->syn)) {
...@@ -1830,7 +2065,6 @@ static int handle_tcp_options(struct nes_cm_node *cm_node, struct tcphdr *tcph, ...@@ -1830,7 +2065,6 @@ static int handle_tcp_options(struct nes_cm_node *cm_node, struct tcphdr *tcph,
* active_open_err() will send reset() if flag set.. * active_open_err() will send reset() if flag set..
* It will also send ABORT event. * It will also send ABORT event.
*/ */
static void active_open_err(struct nes_cm_node *cm_node, struct sk_buff *skb, static void active_open_err(struct nes_cm_node *cm_node, struct sk_buff *skb,
int reset) int reset)
{ {
...@@ -1840,8 +2074,9 @@ static void active_open_err(struct nes_cm_node *cm_node, struct sk_buff *skb, ...@@ -1840,8 +2074,9 @@ static void active_open_err(struct nes_cm_node *cm_node, struct sk_buff *skb,
"state=%d\n", cm_node, cm_node->state); "state=%d\n", cm_node, cm_node->state);
add_ref_cm_node(cm_node); add_ref_cm_node(cm_node);
send_reset(cm_node, skb); send_reset(cm_node, skb);
} else } else {
dev_kfree_skb_any(skb); dev_kfree_skb_any(skb);
}
cm_node->state = NES_CM_STATE_CLOSED; cm_node->state = NES_CM_STATE_CLOSED;
create_event(cm_node, NES_CM_EVENT_ABORTED); create_event(cm_node, NES_CM_EVENT_ABORTED);
...@@ -1851,7 +2086,6 @@ static void active_open_err(struct nes_cm_node *cm_node, struct sk_buff *skb, ...@@ -1851,7 +2086,6 @@ static void active_open_err(struct nes_cm_node *cm_node, struct sk_buff *skb,
* passive_open_err() will either do a reset() or will free up the skb and * passive_open_err() will either do a reset() or will free up the skb and
* remove the cm_node. * remove the cm_node.
*/ */
static void passive_open_err(struct nes_cm_node *cm_node, struct sk_buff *skb, static void passive_open_err(struct nes_cm_node *cm_node, struct sk_buff *skb,
int reset) int reset)
{ {
...@@ -1874,6 +2108,7 @@ static void passive_open_err(struct nes_cm_node *cm_node, struct sk_buff *skb, ...@@ -1874,6 +2108,7 @@ static void passive_open_err(struct nes_cm_node *cm_node, struct sk_buff *skb,
static void free_retrans_entry(struct nes_cm_node *cm_node) static void free_retrans_entry(struct nes_cm_node *cm_node)
{ {
struct nes_timer_entry *send_entry; struct nes_timer_entry *send_entry;
send_entry = cm_node->send_entry; send_entry = cm_node->send_entry;
if (send_entry) { if (send_entry) {
cm_node->send_entry = NULL; cm_node->send_entry = NULL;
...@@ -1903,20 +2138,22 @@ static void process_packet(struct nes_cm_node *cm_node, struct sk_buff *skb, ...@@ -1903,20 +2138,22 @@ static void process_packet(struct nes_cm_node *cm_node, struct sk_buff *skb,
struct tcphdr *tcph = tcp_hdr(skb); struct tcphdr *tcph = tcp_hdr(skb);
u32 fin_set = 0; u32 fin_set = 0;
int ret = 0; int ret = 0;
skb_pull(skb, ip_hdr(skb)->ihl << 2); skb_pull(skb, ip_hdr(skb)->ihl << 2);
nes_debug(NES_DBG_CM, "process_packet: cm_node=%p state =%d syn=%d " nes_debug(NES_DBG_CM, "process_packet: cm_node=%p state =%d syn=%d "
"ack=%d rst=%d fin=%d\n", cm_node, cm_node->state, tcph->syn, "ack=%d rst=%d fin=%d\n", cm_node, cm_node->state, tcph->syn,
tcph->ack, tcph->rst, tcph->fin); tcph->ack, tcph->rst, tcph->fin);
if (tcph->rst) if (tcph->rst) {
pkt_type = NES_PKT_TYPE_RST; pkt_type = NES_PKT_TYPE_RST;
else if (tcph->syn) { } else if (tcph->syn) {
pkt_type = NES_PKT_TYPE_SYN; pkt_type = NES_PKT_TYPE_SYN;
if (tcph->ack) if (tcph->ack)
pkt_type = NES_PKT_TYPE_SYNACK; pkt_type = NES_PKT_TYPE_SYNACK;
} else if (tcph->ack) } else if (tcph->ack) {
pkt_type = NES_PKT_TYPE_ACK; pkt_type = NES_PKT_TYPE_ACK;
}
if (tcph->fin) if (tcph->fin)
fin_set = 1; fin_set = 1;
...@@ -2023,18 +2260,12 @@ static struct nes_cm_node *mini_cm_connect(struct nes_cm_core *cm_core, ...@@ -2023,18 +2260,12 @@ static struct nes_cm_node *mini_cm_connect(struct nes_cm_core *cm_core,
struct nes_cm_listener *loopbackremotelistener; struct nes_cm_listener *loopbackremotelistener;
struct nes_cm_node *loopbackremotenode; struct nes_cm_node *loopbackremotenode;
struct nes_cm_info loopback_cm_info; struct nes_cm_info loopback_cm_info;
u16 mpa_frame_size = sizeof(struct ietf_mpa_frame) + private_data_len; u8 *start_buff;
struct ietf_mpa_frame *mpa_frame = NULL;
/* create a CM connection node */ /* create a CM connection node */
cm_node = make_cm_node(cm_core, nesvnic, cm_info, NULL); cm_node = make_cm_node(cm_core, nesvnic, cm_info, NULL);
if (!cm_node) if (!cm_node)
return NULL; return NULL;
mpa_frame = &cm_node->mpa_frame;
memcpy(mpa_frame->key, IEFT_MPA_KEY_REQ, IETF_MPA_KEY_SIZE);
mpa_frame->flags = IETF_MPA_FLAGS_CRC;
mpa_frame->rev = IETF_MPA_VERSION;
mpa_frame->priv_data_len = htons(private_data_len);
/* set our node side to client (active) side */ /* set our node side to client (active) side */
cm_node->tcp_cntxt.client = 1; cm_node->tcp_cntxt.client = 1;
...@@ -2091,12 +2322,10 @@ static struct nes_cm_node *mini_cm_connect(struct nes_cm_core *cm_core, ...@@ -2091,12 +2322,10 @@ static struct nes_cm_node *mini_cm_connect(struct nes_cm_core *cm_core,
return cm_node; return cm_node;
} }
/* set our node side to client (active) side */ start_buff = &cm_node->mpa_frame_buf[0] + sizeof(struct ietf_mpa_v2);
cm_node->tcp_cntxt.client = 1; cm_node->mpa_frame_size = private_data_len;
/* init our MPA frame ptr */
memcpy(mpa_frame->priv_data, private_data, private_data_len);
cm_node->mpa_frame_size = mpa_frame_size; memcpy(start_buff, private_data, private_data_len);
/* send a syn and goto syn sent state */ /* send a syn and goto syn sent state */
cm_node->state = NES_CM_STATE_SYN_SENT; cm_node->state = NES_CM_STATE_SYN_SENT;
...@@ -2112,11 +2341,12 @@ static struct nes_cm_node *mini_cm_connect(struct nes_cm_core *cm_core, ...@@ -2112,11 +2341,12 @@ static struct nes_cm_node *mini_cm_connect(struct nes_cm_core *cm_core,
cm_node = NULL; cm_node = NULL;
} }
if (cm_node) if (cm_node) {
nes_debug(NES_DBG_CM, "Api - connect(): dest addr=0x%08X," nes_debug(NES_DBG_CM, "Api - connect(): dest addr=0x%08X,"
"port=0x%04x, cm_node=%p, cm_id = %p.\n", "port=0x%04x, cm_node=%p, cm_id = %p.\n",
cm_node->rem_addr, cm_node->rem_port, cm_node, cm_node->rem_addr, cm_node->rem_port, cm_node,
cm_node->cm_id); cm_node->cm_id);
}
return cm_node; return cm_node;
} }
...@@ -2126,8 +2356,7 @@ static struct nes_cm_node *mini_cm_connect(struct nes_cm_core *cm_core, ...@@ -2126,8 +2356,7 @@ static struct nes_cm_node *mini_cm_connect(struct nes_cm_core *cm_core,
* mini_cm_accept - accept a connection * mini_cm_accept - accept a connection
* This function is never called * This function is never called
*/ */
static int mini_cm_accept(struct nes_cm_core *cm_core, static int mini_cm_accept(struct nes_cm_core *cm_core, struct nes_cm_node *cm_node)
struct ietf_mpa_frame *mpa_frame, struct nes_cm_node *cm_node)
{ {
return 0; return 0;
} }
...@@ -2136,8 +2365,7 @@ static int mini_cm_accept(struct nes_cm_core *cm_core, ...@@ -2136,8 +2365,7 @@ static int mini_cm_accept(struct nes_cm_core *cm_core,
/** /**
* mini_cm_reject - reject and teardown a connection * mini_cm_reject - reject and teardown a connection
*/ */
static int mini_cm_reject(struct nes_cm_core *cm_core, static int mini_cm_reject(struct nes_cm_core *cm_core, struct nes_cm_node *cm_node)
struct ietf_mpa_frame *mpa_frame, struct nes_cm_node *cm_node)
{ {
int ret = 0; int ret = 0;
int err = 0; int err = 0;
...@@ -2168,10 +2396,11 @@ static int mini_cm_reject(struct nes_cm_core *cm_core, ...@@ -2168,10 +2396,11 @@ static int mini_cm_reject(struct nes_cm_core *cm_core,
err = send_reset(cm_node, NULL); err = send_reset(cm_node, NULL);
if (err) if (err)
WARN_ON(1); WARN_ON(1);
} else } else {
cm_id->add_ref(cm_id); cm_id->add_ref(cm_id);
} }
} }
}
} else { } else {
cm_node->cm_id = NULL; cm_node->cm_id = NULL;
if (cm_node->state == NES_CM_STATE_LISTENER_DESTROYED) { if (cm_node->state == NES_CM_STATE_LISTENER_DESTROYED) {
...@@ -2269,9 +2498,8 @@ static int mini_cm_recv_pkt(struct nes_cm_core *cm_core, ...@@ -2269,9 +2498,8 @@ static int mini_cm_recv_pkt(struct nes_cm_core *cm_core,
if (!skb) if (!skb)
return 0; return 0;
if (skb->len < sizeof(struct iphdr) + sizeof(struct tcphdr)) { if (skb->len < sizeof(struct iphdr) + sizeof(struct tcphdr))
return 0; return 0;
}
iph = (struct iphdr *)skb->data; iph = (struct iphdr *)skb->data;
tcph = (struct tcphdr *)(skb->data + sizeof(struct iphdr)); tcph = (struct tcphdr *)(skb->data + sizeof(struct iphdr));
...@@ -2401,9 +2629,8 @@ static int mini_cm_dealloc_core(struct nes_cm_core *cm_core) ...@@ -2401,9 +2629,8 @@ static int mini_cm_dealloc_core(struct nes_cm_core *cm_core)
barrier(); barrier();
if (timer_pending(&cm_core->tcp_timer)) { if (timer_pending(&cm_core->tcp_timer))
del_timer(&cm_core->tcp_timer); del_timer(&cm_core->tcp_timer);
}
destroy_workqueue(cm_core->event_wq); destroy_workqueue(cm_core->event_wq);
destroy_workqueue(cm_core->disconn_wq); destroy_workqueue(cm_core->disconn_wq);
...@@ -2492,7 +2719,7 @@ static int nes_cm_init_tsa_conn(struct nes_qp *nesqp, struct nes_cm_node *cm_nod ...@@ -2492,7 +2719,7 @@ static int nes_cm_init_tsa_conn(struct nes_qp *nesqp, struct nes_cm_node *cm_nod
nesqp->nesqp_context->srtt = 0; nesqp->nesqp_context->srtt = 0;
nesqp->nesqp_context->rttvar = cpu_to_le32(0x6); nesqp->nesqp_context->rttvar = cpu_to_le32(0x6);
nesqp->nesqp_context->ssthresh = cpu_to_le32(0x3FFFC000); nesqp->nesqp_context->ssthresh = cpu_to_le32(0x3FFFC000);
nesqp->nesqp_context->cwnd = cpu_to_le32(2*cm_node->tcp_cntxt.mss); nesqp->nesqp_context->cwnd = cpu_to_le32(2 * cm_node->tcp_cntxt.mss);
nesqp->nesqp_context->snd_wl1 = cpu_to_le32(cm_node->tcp_cntxt.rcv_nxt); nesqp->nesqp_context->snd_wl1 = cpu_to_le32(cm_node->tcp_cntxt.rcv_nxt);
nesqp->nesqp_context->snd_wl2 = cpu_to_le32(cm_node->tcp_cntxt.loc_seq_num); nesqp->nesqp_context->snd_wl2 = cpu_to_le32(cm_node->tcp_cntxt.loc_seq_num);
nesqp->nesqp_context->max_snd_wnd = cpu_to_le32(cm_node->tcp_cntxt.max_snd_wnd); nesqp->nesqp_context->max_snd_wnd = cpu_to_le32(cm_node->tcp_cntxt.max_snd_wnd);
...@@ -2674,9 +2901,8 @@ static int nes_cm_disconn_true(struct nes_qp *nesqp) ...@@ -2674,9 +2901,8 @@ static int nes_cm_disconn_true(struct nes_qp *nesqp)
cm_event.private_data_len = 0; cm_event.private_data_len = 0;
ret = cm_id->event_handler(cm_id, &cm_event); ret = cm_id->event_handler(cm_id, &cm_event);
if (ret) { if (ret)
nes_debug(NES_DBG_CM, "OFA CM event_handler returned, ret=%d\n", ret); nes_debug(NES_DBG_CM, "OFA CM event_handler returned, ret=%d\n", ret);
}
cm_id->rem_ref(cm_id); cm_id->rem_ref(cm_id);
} }
...@@ -2716,7 +2942,7 @@ static int nes_disconnect(struct nes_qp *nesqp, int abrupt) ...@@ -2716,7 +2942,7 @@ static int nes_disconnect(struct nes_qp *nesqp, int abrupt)
if (nesqp->lsmm_mr) if (nesqp->lsmm_mr)
nesibdev->ibdev.dereg_mr(nesqp->lsmm_mr); nesibdev->ibdev.dereg_mr(nesqp->lsmm_mr);
pci_free_consistent(nesdev->pcidev, pci_free_consistent(nesdev->pcidev,
nesqp->private_data_len+sizeof(struct ietf_mpa_frame), nesqp->private_data_len + nesqp->ietf_frame_size,
nesqp->ietf_frame, nesqp->ietf_frame_pbase); nesqp->ietf_frame, nesqp->ietf_frame_pbase);
} }
} }
...@@ -2756,6 +2982,12 @@ int nes_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param) ...@@ -2756,6 +2982,12 @@ int nes_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
struct ib_phys_buf ibphysbuf; struct ib_phys_buf ibphysbuf;
struct nes_pd *nespd; struct nes_pd *nespd;
u64 tagged_offset; u64 tagged_offset;
u8 mpa_frame_offset = 0;
struct ietf_mpa_v2 *mpa_v2_frame;
u8 start_addr = 0;
u8 *start_ptr = &start_addr;
u8 **start_buff = &start_ptr;
u16 buff_len = 0;
ibqp = nes_get_qp(cm_id->device, conn_param->qpn); ibqp = nes_get_qp(cm_id->device, conn_param->qpn);
if (!ibqp) if (!ibqp)
...@@ -2796,29 +3028,26 @@ int nes_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param) ...@@ -2796,29 +3028,26 @@ int nes_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
nes_debug(NES_DBG_CM, "netdev refcnt = %u.\n", nes_debug(NES_DBG_CM, "netdev refcnt = %u.\n",
netdev_refcnt_read(nesvnic->netdev)); netdev_refcnt_read(nesvnic->netdev));
nesqp->ietf_frame_size = sizeof(struct ietf_mpa_v2);
/* allocate the ietf frame and space for private data */ /* allocate the ietf frame and space for private data */
nesqp->ietf_frame = pci_alloc_consistent(nesdev->pcidev, nesqp->ietf_frame = pci_alloc_consistent(nesdev->pcidev,
sizeof(struct ietf_mpa_frame) + conn_param->private_data_len, nesqp->ietf_frame_size + conn_param->private_data_len,
&nesqp->ietf_frame_pbase); &nesqp->ietf_frame_pbase);
if (!nesqp->ietf_frame) { if (!nesqp->ietf_frame) {
nes_debug(NES_DBG_CM, "Unable to allocate memory for private " nes_debug(NES_DBG_CM, "Unable to allocate memory for private data\n");
"data\n");
return -ENOMEM; return -ENOMEM;
} }
mpa_v2_frame = (struct ietf_mpa_v2 *)nesqp->ietf_frame;
if (cm_node->mpa_frame_rev == IETF_MPA_V1)
mpa_frame_offset = 4;
/* setup the MPA frame */ memcpy(mpa_v2_frame->priv_data, conn_param->private_data,
nesqp->private_data_len = conn_param->private_data_len;
memcpy(nesqp->ietf_frame->key, IEFT_MPA_KEY_REP, IETF_MPA_KEY_SIZE);
memcpy(nesqp->ietf_frame->priv_data, conn_param->private_data,
conn_param->private_data_len); conn_param->private_data_len);
nesqp->ietf_frame->priv_data_len = cm_build_mpa_frame(cm_node, start_buff, &buff_len, nesqp->ietf_frame, MPA_KEY_REPLY);
cpu_to_be16(conn_param->private_data_len); nesqp->private_data_len = conn_param->private_data_len;
nesqp->ietf_frame->rev = mpa_version;
nesqp->ietf_frame->flags = IETF_MPA_FLAGS_CRC;
/* setup our first outgoing iWarp send WQE (the IETF frame response) */ /* setup our first outgoing iWarp send WQE (the IETF frame response) */
wqe = &nesqp->hwqp.sq_vbase[0]; wqe = &nesqp->hwqp.sq_vbase[0];
...@@ -2828,10 +3057,9 @@ int nes_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param) ...@@ -2828,10 +3057,9 @@ int nes_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
u64temp = (unsigned long)nesqp; u64temp = (unsigned long)nesqp;
nesibdev = nesvnic->nesibdev; nesibdev = nesvnic->nesibdev;
nespd = nesqp->nespd; nespd = nesqp->nespd;
ibphysbuf.addr = nesqp->ietf_frame_pbase; ibphysbuf.addr = nesqp->ietf_frame_pbase + mpa_frame_offset;
ibphysbuf.size = conn_param->private_data_len + ibphysbuf.size = buff_len;
sizeof(struct ietf_mpa_frame); tagged_offset = (u64)(unsigned long)*start_buff;
tagged_offset = (u64)(unsigned long)nesqp->ietf_frame;
ibmr = nesibdev->ibdev.reg_phys_mr((struct ib_pd *)nespd, ibmr = nesibdev->ibdev.reg_phys_mr((struct ib_pd *)nespd,
&ibphysbuf, 1, &ibphysbuf, 1,
IB_ACCESS_LOCAL_WRITE, IB_ACCESS_LOCAL_WRITE,
...@@ -2841,7 +3069,7 @@ int nes_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param) ...@@ -2841,7 +3069,7 @@ int nes_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
"for lSMM for cm_node = %p \n", "for lSMM for cm_node = %p \n",
cm_node); cm_node);
pci_free_consistent(nesdev->pcidev, pci_free_consistent(nesdev->pcidev,
nesqp->private_data_len+sizeof(struct ietf_mpa_frame), nesqp->private_data_len + nesqp->ietf_frame_size,
nesqp->ietf_frame, nesqp->ietf_frame_pbase); nesqp->ietf_frame, nesqp->ietf_frame_pbase);
return -ENOMEM; return -ENOMEM;
} }
...@@ -2850,7 +3078,7 @@ int nes_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param) ...@@ -2850,7 +3078,7 @@ int nes_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
ibmr->device = nespd->ibpd.device; ibmr->device = nespd->ibpd.device;
nesqp->lsmm_mr = ibmr; nesqp->lsmm_mr = ibmr;
u64temp |= NES_SW_CONTEXT_ALIGN>>1; u64temp |= NES_SW_CONTEXT_ALIGN >> 1;
set_wqe_64bit_value(wqe->wqe_words, set_wqe_64bit_value(wqe->wqe_words,
NES_IWARP_SQ_WQE_COMP_CTX_LOW_IDX, NES_IWARP_SQ_WQE_COMP_CTX_LOW_IDX,
u64temp); u64temp);
...@@ -2858,14 +3086,12 @@ int nes_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param) ...@@ -2858,14 +3086,12 @@ int nes_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
cpu_to_le32(NES_IWARP_SQ_WQE_STREAMING | cpu_to_le32(NES_IWARP_SQ_WQE_STREAMING |
NES_IWARP_SQ_WQE_WRPDU); NES_IWARP_SQ_WQE_WRPDU);
wqe->wqe_words[NES_IWARP_SQ_WQE_TOTAL_PAYLOAD_IDX] = wqe->wqe_words[NES_IWARP_SQ_WQE_TOTAL_PAYLOAD_IDX] =
cpu_to_le32(conn_param->private_data_len + cpu_to_le32(buff_len);
sizeof(struct ietf_mpa_frame));
set_wqe_64bit_value(wqe->wqe_words, set_wqe_64bit_value(wqe->wqe_words,
NES_IWARP_SQ_WQE_FRAG0_LOW_IDX, NES_IWARP_SQ_WQE_FRAG0_LOW_IDX,
(u64)(unsigned long)nesqp->ietf_frame); (u64)(unsigned long)(*start_buff));
wqe->wqe_words[NES_IWARP_SQ_WQE_LENGTH0_IDX] = wqe->wqe_words[NES_IWARP_SQ_WQE_LENGTH0_IDX] =
cpu_to_le32(conn_param->private_data_len + cpu_to_le32(buff_len);
sizeof(struct ietf_mpa_frame));
wqe->wqe_words[NES_IWARP_SQ_WQE_STAG0_IDX] = ibmr->lkey; wqe->wqe_words[NES_IWARP_SQ_WQE_STAG0_IDX] = ibmr->lkey;
if (nesqp->sq_kmapped) { if (nesqp->sq_kmapped) {
nesqp->sq_kmapped = 0; nesqp->sq_kmapped = 0;
...@@ -2950,16 +3176,14 @@ int nes_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param) ...@@ -2950,16 +3176,14 @@ int nes_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
nes_debug(NES_DBG_CM, "QP%u, Destination IP = 0x%08X:0x%04X, local = " nes_debug(NES_DBG_CM, "QP%u, Destination IP = 0x%08X:0x%04X, local = "
"0x%08X:0x%04X, rcv_nxt=0x%08X, snd_nxt=0x%08X, mpa + " "0x%08X:0x%04X, rcv_nxt=0x%08X, snd_nxt=0x%08X, mpa + "
"private data length=%zu.\n", nesqp->hwqp.qp_id, "private data length=%u.\n", nesqp->hwqp.qp_id,
ntohl(cm_id->remote_addr.sin_addr.s_addr), ntohl(cm_id->remote_addr.sin_addr.s_addr),
ntohs(cm_id->remote_addr.sin_port), ntohs(cm_id->remote_addr.sin_port),
ntohl(cm_id->local_addr.sin_addr.s_addr), ntohl(cm_id->local_addr.sin_addr.s_addr),
ntohs(cm_id->local_addr.sin_port), ntohs(cm_id->local_addr.sin_port),
le32_to_cpu(nesqp->nesqp_context->rcv_nxt), le32_to_cpu(nesqp->nesqp_context->rcv_nxt),
le32_to_cpu(nesqp->nesqp_context->snd_nxt), le32_to_cpu(nesqp->nesqp_context->snd_nxt),
conn_param->private_data_len + buff_len);
sizeof(struct ietf_mpa_frame));
/* notify OF layer that accept event was successful */ /* notify OF layer that accept event was successful */
cm_id->add_ref(cm_id); cm_id->add_ref(cm_id);
...@@ -2980,7 +3204,7 @@ int nes_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param) ...@@ -2980,7 +3204,7 @@ int nes_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
nesqp->private_data_len; nesqp->private_data_len;
/* copy entire MPA frame to our cm_node's frame */ /* copy entire MPA frame to our cm_node's frame */
memcpy(cm_node->loopbackpartner->mpa_frame_buf, memcpy(cm_node->loopbackpartner->mpa_frame_buf,
nesqp->ietf_frame->priv_data, nesqp->private_data_len); conn_param->private_data, conn_param->private_data_len);
create_event(cm_node->loopbackpartner, NES_CM_EVENT_CONNECTED); create_event(cm_node->loopbackpartner, NES_CM_EVENT_CONNECTED);
} }
if (ret) if (ret)
...@@ -2998,34 +3222,28 @@ int nes_reject(struct iw_cm_id *cm_id, const void *pdata, u8 pdata_len) ...@@ -2998,34 +3222,28 @@ int nes_reject(struct iw_cm_id *cm_id, const void *pdata, u8 pdata_len)
{ {
struct nes_cm_node *cm_node; struct nes_cm_node *cm_node;
struct nes_cm_node *loopback; struct nes_cm_node *loopback;
struct nes_cm_core *cm_core; struct nes_cm_core *cm_core;
u8 *start_buff;
atomic_inc(&cm_rejects); atomic_inc(&cm_rejects);
cm_node = (struct nes_cm_node *) cm_id->provider_data; cm_node = (struct nes_cm_node *)cm_id->provider_data;
loopback = cm_node->loopbackpartner; loopback = cm_node->loopbackpartner;
cm_core = cm_node->cm_core; cm_core = cm_node->cm_core;
cm_node->cm_id = cm_id; cm_node->cm_id = cm_id;
cm_node->mpa_frame_size = sizeof(struct ietf_mpa_frame) + pdata_len;
if (cm_node->mpa_frame_size > MAX_CM_BUFFER) if (pdata_len + sizeof(struct ietf_mpa_v2) > MAX_CM_BUFFER)
return -EINVAL; return -EINVAL;
memcpy(&cm_node->mpa_frame.key[0], IEFT_MPA_KEY_REP, IETF_MPA_KEY_SIZE);
if (loopback) { if (loopback) {
memcpy(&loopback->mpa_frame.priv_data, pdata, pdata_len); memcpy(&loopback->mpa_frame.priv_data, pdata, pdata_len);
loopback->mpa_frame.priv_data_len = pdata_len; loopback->mpa_frame.priv_data_len = pdata_len;
loopback->mpa_frame_size = sizeof(struct ietf_mpa_frame) + loopback->mpa_frame_size = pdata_len;
pdata_len;
} else { } else {
memcpy(&cm_node->mpa_frame.priv_data, pdata, pdata_len); start_buff = &cm_node->mpa_frame_buf[0] + sizeof(struct ietf_mpa_v2);
cm_node->mpa_frame.priv_data_len = cpu_to_be16(pdata_len); cm_node->mpa_frame_size = pdata_len;
memcpy(start_buff, pdata, pdata_len);
} }
return cm_core->api->reject(cm_core, cm_node);
cm_node->mpa_frame.rev = mpa_version;
cm_node->mpa_frame.flags = IETF_MPA_FLAGS_CRC | IETF_MPA_FLAGS_REJECT;
return cm_core->api->reject(cm_core, &cm_node->mpa_frame, cm_node);
} }
...@@ -3206,13 +3424,13 @@ int nes_destroy_listen(struct iw_cm_id *cm_id) ...@@ -3206,13 +3424,13 @@ int nes_destroy_listen(struct iw_cm_id *cm_id)
int nes_cm_recv(struct sk_buff *skb, struct net_device *netdevice) int nes_cm_recv(struct sk_buff *skb, struct net_device *netdevice)
{ {
int rc = 0; int rc = 0;
cm_packets_received++; cm_packets_received++;
if ((g_cm_core) && (g_cm_core->api)) { if ((g_cm_core) && (g_cm_core->api))
rc = g_cm_core->api->recv_pkt(g_cm_core, netdev_priv(netdevice), skb); rc = g_cm_core->api->recv_pkt(g_cm_core, netdev_priv(netdevice), skb);
} else { else
nes_debug(NES_DBG_CM, "Unable to process packet for CM," nes_debug(NES_DBG_CM, "Unable to process packet for CM,"
" cm is not setup properly.\n"); " cm is not setup properly.\n");
}
return rc; return rc;
} }
...@@ -3227,11 +3445,10 @@ int nes_cm_start(void) ...@@ -3227,11 +3445,10 @@ int nes_cm_start(void)
nes_debug(NES_DBG_CM, "\n"); nes_debug(NES_DBG_CM, "\n");
/* create the primary CM core, pass this handle to subsequent core inits */ /* create the primary CM core, pass this handle to subsequent core inits */
g_cm_core = nes_cm_alloc_core(); g_cm_core = nes_cm_alloc_core();
if (g_cm_core) { if (g_cm_core)
return 0; return 0;
} else { else
return -ENOMEM; return -ENOMEM;
}
} }
...@@ -3252,7 +3469,6 @@ int nes_cm_stop(void) ...@@ -3252,7 +3469,6 @@ int nes_cm_stop(void)
*/ */
static void cm_event_connected(struct nes_cm_event *event) static void cm_event_connected(struct nes_cm_event *event)
{ {
u64 u64temp;
struct nes_qp *nesqp; struct nes_qp *nesqp;
struct nes_vnic *nesvnic; struct nes_vnic *nesvnic;
struct nes_device *nesdev; struct nes_device *nesdev;
...@@ -3261,7 +3477,6 @@ static void cm_event_connected(struct nes_cm_event *event) ...@@ -3261,7 +3477,6 @@ static void cm_event_connected(struct nes_cm_event *event)
struct ib_qp_attr attr; struct ib_qp_attr attr;
struct iw_cm_id *cm_id; struct iw_cm_id *cm_id;
struct iw_cm_event cm_event; struct iw_cm_event cm_event;
struct nes_hw_qp_wqe *wqe;
struct nes_v4_quad nes_quad; struct nes_v4_quad nes_quad;
u32 crc_value; u32 crc_value;
int ret; int ret;
...@@ -3275,9 +3490,8 @@ static void cm_event_connected(struct nes_cm_event *event) ...@@ -3275,9 +3490,8 @@ static void cm_event_connected(struct nes_cm_event *event)
nesdev = nesvnic->nesdev; nesdev = nesvnic->nesdev;
nesadapter = nesdev->nesadapter; nesadapter = nesdev->nesadapter;
if (nesqp->destroyed) { if (nesqp->destroyed)
return; return;
}
atomic_inc(&cm_connecteds); atomic_inc(&cm_connecteds);
nes_debug(NES_DBG_CM, "QP%u attempting to connect to 0x%08X:0x%04X on" nes_debug(NES_DBG_CM, "QP%u attempting to connect to 0x%08X:0x%04X on"
" local port 0x%04X. jiffies = %lu.\n", " local port 0x%04X. jiffies = %lu.\n",
...@@ -3316,40 +3530,12 @@ static void cm_event_connected(struct nes_cm_event *event) ...@@ -3316,40 +3530,12 @@ static void cm_event_connected(struct nes_cm_event *event)
NES_QPCONTEXT_ORDIRD_IWARP_MODE_SHIFT); NES_QPCONTEXT_ORDIRD_IWARP_MODE_SHIFT);
/* Adjust tail for not having a LSMM */ /* Adjust tail for not having a LSMM */
nesqp->hwqp.sq_tail = 1; /*nesqp->hwqp.sq_tail = 1;*/
#if defined(NES_SEND_FIRST_WRITE) build_rdma0_msg(cm_node, &nesqp);
if (cm_node->send_write0) {
nes_debug(NES_DBG_CM, "Sending first write.\n");
wqe = &nesqp->hwqp.sq_vbase[0];
u64temp = (unsigned long)nesqp;
u64temp |= NES_SW_CONTEXT_ALIGN>>1;
set_wqe_64bit_value(wqe->wqe_words,
NES_IWARP_SQ_WQE_COMP_CTX_LOW_IDX, u64temp);
wqe->wqe_words[NES_IWARP_SQ_WQE_MISC_IDX] =
cpu_to_le32(NES_IWARP_SQ_OP_RDMAW);
wqe->wqe_words[NES_IWARP_SQ_WQE_TOTAL_PAYLOAD_IDX] = 0;
wqe->wqe_words[NES_IWARP_SQ_WQE_FRAG0_LOW_IDX] = 0;
wqe->wqe_words[NES_IWARP_SQ_WQE_FRAG0_HIGH_IDX] = 0;
wqe->wqe_words[NES_IWARP_SQ_WQE_LENGTH0_IDX] = 0;
wqe->wqe_words[NES_IWARP_SQ_WQE_STAG0_IDX] = 0;
if (nesqp->sq_kmapped) {
nesqp->sq_kmapped = 0;
kunmap(nesqp->page);
}
/* use the reserved spot on the WQ for the extra first WQE */
nesqp->nesqp_context->ird_ord_sizes &=
cpu_to_le32(~(NES_QPCONTEXT_ORDIRD_LSMM_PRESENT |
NES_QPCONTEXT_ORDIRD_WRPDU |
NES_QPCONTEXT_ORDIRD_ALSMM));
nesqp->skip_lsmm = 1;
nesqp->hwqp.sq_tail = 0;
nes_write32(nesdev->regs + NES_WQE_ALLOC, nes_write32(nesdev->regs + NES_WQE_ALLOC,
(1 << 24) | 0x00800000 | nesqp->hwqp.qp_id); (1 << 24) | 0x00800000 | nesqp->hwqp.qp_id);
}
#endif
memset(&nes_quad, 0, sizeof(nes_quad)); memset(&nes_quad, 0, sizeof(nes_quad));
...@@ -3372,7 +3558,7 @@ static void cm_event_connected(struct nes_cm_event *event) ...@@ -3372,7 +3558,7 @@ static void cm_event_connected(struct nes_cm_event *event)
nesqp->nesqp_context->hte_index = cpu_to_le32(nesqp->hte_index); nesqp->nesqp_context->hte_index = cpu_to_le32(nesqp->hte_index);
nesqp->ietf_frame = &cm_node->mpa_frame; nesqp->ietf_frame = &cm_node->mpa_frame;
nesqp->private_data_len = (u8) cm_node->mpa_frame_size; nesqp->private_data_len = (u8)cm_node->mpa_frame_size;
cm_node->cm_core->api->accelerated(cm_node->cm_core, cm_node); cm_node->cm_core->api->accelerated(cm_node->cm_core, cm_node);
/* notify OF layer we successfully created the requested connection */ /* notify OF layer we successfully created the requested connection */
...@@ -3384,7 +3570,9 @@ static void cm_event_connected(struct nes_cm_event *event) ...@@ -3384,7 +3570,9 @@ static void cm_event_connected(struct nes_cm_event *event)
cm_event.remote_addr = cm_id->remote_addr; cm_event.remote_addr = cm_id->remote_addr;
cm_event.private_data = (void *)event->cm_node->mpa_frame_buf; cm_event.private_data = (void *)event->cm_node->mpa_frame_buf;
cm_event.private_data_len = (u8) event->cm_node->mpa_frame_size; cm_event.private_data_len = (u8)event->cm_node->mpa_frame_size;
cm_event.ird = cm_node->ird_size;
cm_event.ord = cm_node->ord_size;
cm_event.local_addr.sin_addr.s_addr = event->cm_info.rem_addr; cm_event.local_addr.sin_addr.s_addr = event->cm_info.rem_addr;
ret = cm_id->event_handler(cm_id, &cm_event); ret = cm_id->event_handler(cm_id, &cm_event);
...@@ -3418,16 +3606,14 @@ static void cm_event_connect_error(struct nes_cm_event *event) ...@@ -3418,16 +3606,14 @@ static void cm_event_connect_error(struct nes_cm_event *event)
return; return;
cm_id = event->cm_node->cm_id; cm_id = event->cm_node->cm_id;
if (!cm_id) { if (!cm_id)
return; return;
}
nes_debug(NES_DBG_CM, "cm_node=%p, cm_id=%p\n", event->cm_node, cm_id); nes_debug(NES_DBG_CM, "cm_node=%p, cm_id=%p\n", event->cm_node, cm_id);
nesqp = cm_id->provider_data; nesqp = cm_id->provider_data;
if (!nesqp) { if (!nesqp)
return; return;
}
/* notify OF layer about this connection error event */ /* notify OF layer about this connection error event */
/* cm_id->rem_ref(cm_id); */ /* cm_id->rem_ref(cm_id); */
...@@ -3545,7 +3731,9 @@ static void cm_event_mpa_req(struct nes_cm_event *event) ...@@ -3545,7 +3731,9 @@ static void cm_event_mpa_req(struct nes_cm_event *event)
cm_event.remote_addr.sin_port = htons(event->cm_info.rem_port); cm_event.remote_addr.sin_port = htons(event->cm_info.rem_port);
cm_event.remote_addr.sin_addr.s_addr = htonl(event->cm_info.rem_addr); cm_event.remote_addr.sin_addr.s_addr = htonl(event->cm_info.rem_addr);
cm_event.private_data = cm_node->mpa_frame_buf; cm_event.private_data = cm_node->mpa_frame_buf;
cm_event.private_data_len = (u8) cm_node->mpa_frame_size; cm_event.private_data_len = (u8)cm_node->mpa_frame_size;
cm_event.ird = cm_node->ird_size;
cm_event.ord = cm_node->ord_size;
ret = cm_id->event_handler(cm_id, &cm_event); ret = cm_id->event_handler(cm_id, &cm_event);
if (ret) if (ret)
...@@ -3584,7 +3772,7 @@ static void cm_event_mpa_reject(struct nes_cm_event *event) ...@@ -3584,7 +3772,7 @@ static void cm_event_mpa_reject(struct nes_cm_event *event)
cm_event.remote_addr.sin_addr.s_addr = htonl(event->cm_info.rem_addr); cm_event.remote_addr.sin_addr.s_addr = htonl(event->cm_info.rem_addr);
cm_event.private_data = cm_node->mpa_frame_buf; cm_event.private_data = cm_node->mpa_frame_buf;
cm_event.private_data_len = (u8) cm_node->mpa_frame_size; cm_event.private_data_len = (u8)cm_node->mpa_frame_size;
nes_debug(NES_DBG_CM, "call CM_EVENT_MPA_REJECTED, local_addr=%08x, " nes_debug(NES_DBG_CM, "call CM_EVENT_MPA_REJECTED, local_addr=%08x, "
"remove_addr=%08x\n", "remove_addr=%08x\n",
......
drivers/infiniband/hw/nes/nes_cm.h
浏览文件 @ 615eb715
...@@ -49,6 +49,15 @@ ...@@ -49,6 +49,15 @@
#define IETF_MPA_VERSION 1 #define IETF_MPA_VERSION 1
#define IETF_MAX_PRIV_DATA_LEN 512 #define IETF_MAX_PRIV_DATA_LEN 512
#define IETF_MPA_FRAME_SIZE 20 #define IETF_MPA_FRAME_SIZE 20
#define IETF_RTR_MSG_SIZE 4
#define IETF_MPA_V2_FLAG 0x10
/* IETF RTR MSG Fields */
#define IETF_PEER_TO_PEER 0x8000
#define IETF_FLPDU_ZERO_LEN 0x4000
#define IETF_RDMA0_WRITE 0x8000
#define IETF_RDMA0_READ 0x4000
#define IETF_NO_IRD_ORD 0x3FFF
enum ietf_mpa_flags { enum ietf_mpa_flags {
IETF_MPA_FLAGS_MARKERS = 0x80, /* receive Markers */ IETF_MPA_FLAGS_MARKERS = 0x80, /* receive Markers */
...@@ -56,7 +65,7 @@ enum ietf_mpa_flags { ...@@ -56,7 +65,7 @@ enum ietf_mpa_flags {
IETF_MPA_FLAGS_REJECT = 0x20, /* Reject */ IETF_MPA_FLAGS_REJECT = 0x20, /* Reject */
}; };
struct ietf_mpa_frame { struct ietf_mpa_v1 {
u8 key[IETF_MPA_KEY_SIZE]; u8 key[IETF_MPA_KEY_SIZE];
u8 flags; u8 flags;
u8 rev; u8 rev;
...@@ -66,6 +75,20 @@ struct ietf_mpa_frame { ...@@ -66,6 +75,20 @@ struct ietf_mpa_frame {
#define ietf_mpa_req_resp_frame ietf_mpa_frame #define ietf_mpa_req_resp_frame ietf_mpa_frame
struct ietf_rtr_msg {
__be16 ctrl_ird;
__be16 ctrl_ord;
};
struct ietf_mpa_v2 {
u8 key[IETF_MPA_KEY_SIZE];
u8 flags;
u8 rev;
__be16 priv_data_len;
struct ietf_rtr_msg rtr_msg;
u8 priv_data[0];
};
struct nes_v4_quad { struct nes_v4_quad {
u32 rsvd0; u32 rsvd0;
__le32 DstIpAdrIndex; /* Only most significant 5 bits are valid */ __le32 DstIpAdrIndex; /* Only most significant 5 bits are valid */
...@@ -171,8 +194,7 @@ struct nes_timer_entry { ...@@ -171,8 +194,7 @@ struct nes_timer_entry {
#define NES_CM_DEF_SEQ2 0x18ed5740 #define NES_CM_DEF_SEQ2 0x18ed5740
#define NES_CM_DEF_LOCAL_ID2 0xb807 #define NES_CM_DEF_LOCAL_ID2 0xb807
#define MAX_CM_BUFFER (IETF_MPA_FRAME_SIZE + IETF_MAX_PRIV_DATA_LEN) #define MAX_CM_BUFFER (IETF_MPA_FRAME_SIZE + IETF_RTR_MSG_SIZE + IETF_MAX_PRIV_DATA_LEN)
typedef u32 nes_addr_t; typedef u32 nes_addr_t;
...@@ -204,6 +226,21 @@ enum nes_cm_node_state { ...@@ -204,6 +226,21 @@ enum nes_cm_node_state {
NES_CM_STATE_CLOSED NES_CM_STATE_CLOSED
}; };
enum mpa_frame_version {
IETF_MPA_V1 = 1,
IETF_MPA_V2 = 2
};
enum mpa_frame_key {
MPA_KEY_REQUEST,
MPA_KEY_REPLY
};
enum send_rdma0 {
SEND_RDMA_READ_ZERO = 1,
SEND_RDMA_WRITE_ZERO = 2
};
enum nes_tcpip_pkt_type { enum nes_tcpip_pkt_type {
NES_PKT_TYPE_UNKNOWN, NES_PKT_TYPE_UNKNOWN,
NES_PKT_TYPE_SYN, NES_PKT_TYPE_SYN,
...@@ -245,9 +282,9 @@ struct nes_cm_tcp_context { ...@@ -245,9 +282,9 @@ struct nes_cm_tcp_context {
enum nes_cm_listener_state { enum nes_cm_listener_state {
NES_CM_LISTENER_PASSIVE_STATE=1, NES_CM_LISTENER_PASSIVE_STATE = 1,
NES_CM_LISTENER_ACTIVE_STATE=2, NES_CM_LISTENER_ACTIVE_STATE = 2,
NES_CM_LISTENER_EITHER_STATE=3 NES_CM_LISTENER_EITHER_STATE = 3
}; };
struct nes_cm_listener { struct nes_cm_listener {
...@@ -284,15 +321,19 @@ struct nes_cm_node { ...@@ -284,15 +321,19 @@ struct nes_cm_node {
struct nes_cm_node *loopbackpartner; struct nes_cm_node *loopbackpartner;
struct nes_timer_entry *send_entry; struct nes_timer_entry *send_entry;
spinlock_t retrans_list_lock;
struct nes_timer_entry *recv_entry; struct nes_timer_entry *recv_entry;
spinlock_t retrans_list_lock;
enum send_rdma0 send_rdma0_op;
int send_write0;
union { union {
struct ietf_mpa_frame mpa_frame; struct ietf_mpa_v1 mpa_frame;
struct ietf_mpa_v2 mpa_v2_frame;
u8 mpa_frame_buf[MAX_CM_BUFFER]; u8 mpa_frame_buf[MAX_CM_BUFFER];
}; };
enum mpa_frame_version mpa_frame_rev;
u16 ird_size;
u16 ord_size;
u16 mpa_frame_size; u16 mpa_frame_size;
struct iw_cm_id *cm_id; struct iw_cm_id *cm_id;
struct list_head list; struct list_head list;
...@@ -399,10 +440,8 @@ struct nes_cm_ops { ...@@ -399,10 +440,8 @@ struct nes_cm_ops {
struct nes_vnic *, u16, void *, struct nes_vnic *, u16, void *,
struct nes_cm_info *); struct nes_cm_info *);
int (*close)(struct nes_cm_core *, struct nes_cm_node *); int (*close)(struct nes_cm_core *, struct nes_cm_node *);
int (*accept)(struct nes_cm_core *, struct ietf_mpa_frame *, int (*accept)(struct nes_cm_core *, struct nes_cm_node *);
struct nes_cm_node *); int (*reject)(struct nes_cm_core *, struct nes_cm_node *);
int (*reject)(struct nes_cm_core *, struct ietf_mpa_frame *,
struct nes_cm_node *);
int (*recv_pkt)(struct nes_cm_core *, struct nes_vnic *, int (*recv_pkt)(struct nes_cm_core *, struct nes_vnic *,
struct sk_buff *); struct sk_buff *);
int (*destroy_cm_core)(struct nes_cm_core *); int (*destroy_cm_core)(struct nes_cm_core *);
......
drivers/infiniband/hw/nes/nes_verbs.h
浏览文件 @ 615eb715
...@@ -139,7 +139,8 @@ struct nes_qp { ...@@ -139,7 +139,8 @@ struct nes_qp {
struct nes_cq *nesrcq; struct nes_cq *nesrcq;
struct nes_pd *nespd; struct nes_pd *nespd;
void *cm_node; /* handle of the node this QP is associated with */ void *cm_node; /* handle of the node this QP is associated with */
struct ietf_mpa_frame *ietf_frame; void *ietf_frame;
u8 ietf_frame_size;
dma_addr_t ietf_frame_pbase; dma_addr_t ietf_frame_pbase;
struct ib_mr *lsmm_mr; struct ib_mr *lsmm_mr;
struct nes_hw_qp hwqp; struct nes_hw_qp hwqp;
......
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