Commit 456a5849 authored by Kalderon, Michal's avatar Kalderon, Michal Committed by David S. Miller

qed: iWARP CM add passive side connect

This patch implements the passive side connect.
It addresses pre-allocating resources, creating a connection
element upon valid SYN packet received. Calling upper layer and
implementation of the accept/reject calls.

Error handling is not part of this patch.
Signed-off-by: default avatarMichal Kalderon <Michal.Kalderon@cavium.com>
Signed-off-by: default avatarYuval Mintz <Yuval.Mintz@cavium.com>
Signed-off-by: default avatarAriel Elior <Ariel.Elior@cavium.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 65a91a6c
...@@ -789,6 +789,8 @@ void qed_configure_vp_wfq_on_link_change(struct qed_dev *cdev, ...@@ -789,6 +789,8 @@ void qed_configure_vp_wfq_on_link_change(struct qed_dev *cdev,
void qed_clean_wfq_db(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt); void qed_clean_wfq_db(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt);
int qed_device_num_engines(struct qed_dev *cdev); int qed_device_num_engines(struct qed_dev *cdev);
int qed_device_get_port_id(struct qed_dev *cdev); int qed_device_get_port_id(struct qed_dev *cdev);
void qed_set_fw_mac_addr(__le16 *fw_msb,
__le16 *fw_mid, __le16 *fw_lsb, u8 *mac);
#define QED_LEADING_HWFN(dev) (&dev->hwfns[0]) #define QED_LEADING_HWFN(dev) (&dev->hwfns[0])
......
...@@ -4127,3 +4127,14 @@ int qed_device_get_port_id(struct qed_dev *cdev) ...@@ -4127,3 +4127,14 @@ int qed_device_get_port_id(struct qed_dev *cdev)
{ {
return (QED_LEADING_HWFN(cdev)->abs_pf_id) % qed_device_num_ports(cdev); return (QED_LEADING_HWFN(cdev)->abs_pf_id) % qed_device_num_ports(cdev);
} }
void qed_set_fw_mac_addr(__le16 *fw_msb,
__le16 *fw_mid, __le16 *fw_lsb, u8 *mac)
{
((u8 *)fw_msb)[0] = mac[1];
((u8 *)fw_msb)[1] = mac[0];
((u8 *)fw_mid)[0] = mac[3];
((u8 *)fw_mid)[1] = mac[2];
((u8 *)fw_lsb)[0] = mac[5];
((u8 *)fw_lsb)[1] = mac[4];
}
...@@ -44,9 +44,30 @@ ...@@ -44,9 +44,30 @@
#define QED_IWARP_ORD_DEFAULT 32 #define QED_IWARP_ORD_DEFAULT 32
#define QED_IWARP_IRD_DEFAULT 32 #define QED_IWARP_IRD_DEFAULT 32
#define QED_IWARP_MAX_FW_MSS 4120
#define QED_EP_SIG 0xecabcdef
struct mpa_v2_hdr {
__be16 ird;
__be16 ord;
};
#define MPA_V2_PEER2PEER_MODEL 0x8000
#define MPA_V2_SEND_RTR 0x4000 /* on ird */
#define MPA_V2_READ_RTR 0x4000 /* on ord */
#define MPA_V2_WRITE_RTR 0x8000
#define MPA_V2_IRD_ORD_MASK 0x3FFF
#define MPA_REV2(_mpa_rev) ((_mpa_rev) == MPA_NEGOTIATION_TYPE_ENHANCED)
#define QED_IWARP_INVALID_TCP_CID 0xffffffff
#define QED_IWARP_RCV_WND_SIZE_DEF (256 * 1024) #define QED_IWARP_RCV_WND_SIZE_DEF (256 * 1024)
#define QED_IWARP_RCV_WND_SIZE_MIN (64 * 1024) #define QED_IWARP_RCV_WND_SIZE_MIN (64 * 1024)
#define TIMESTAMP_HEADER_SIZE (12)
#define QED_IWARP_TS_EN BIT(0) #define QED_IWARP_TS_EN BIT(0)
#define QED_IWARP_DA_EN BIT(1)
#define QED_IWARP_PARAM_CRC_NEEDED (1) #define QED_IWARP_PARAM_CRC_NEEDED (1)
#define QED_IWARP_PARAM_P2P (1) #define QED_IWARP_PARAM_P2P (1)
...@@ -63,7 +84,8 @@ void qed_iwarp_init_devinfo(struct qed_hwfn *p_hwfn) ...@@ -63,7 +84,8 @@ void qed_iwarp_init_devinfo(struct qed_hwfn *p_hwfn)
dev->max_inline = IWARP_REQ_MAX_INLINE_DATA_SIZE; dev->max_inline = IWARP_REQ_MAX_INLINE_DATA_SIZE;
dev->max_qp = min_t(u32, dev->max_qp = min_t(u32,
IWARP_MAX_QPS, IWARP_MAX_QPS,
p_hwfn->p_rdma_info->num_qps); p_hwfn->p_rdma_info->num_qps) -
QED_IWARP_PREALLOC_CNT;
dev->max_cq = dev->max_qp; dev->max_cq = dev->max_qp;
...@@ -78,12 +100,22 @@ void qed_iwarp_init_hw(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt) ...@@ -78,12 +100,22 @@ void qed_iwarp_init_hw(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
p_hwfn->b_rdma_enabled_in_prs = true; p_hwfn->b_rdma_enabled_in_prs = true;
} }
/* We have two cid maps, one for tcp which should be used only from passive
* syn processing and replacing a pre-allocated ep in the list. The second
* for active tcp and for QPs.
*/
static void qed_iwarp_cid_cleaned(struct qed_hwfn *p_hwfn, u32 cid) static void qed_iwarp_cid_cleaned(struct qed_hwfn *p_hwfn, u32 cid)
{ {
cid -= qed_cxt_get_proto_cid_start(p_hwfn, p_hwfn->p_rdma_info->proto); cid -= qed_cxt_get_proto_cid_start(p_hwfn, p_hwfn->p_rdma_info->proto);
spin_lock_bh(&p_hwfn->p_rdma_info->lock); spin_lock_bh(&p_hwfn->p_rdma_info->lock);
qed_bmap_release_id(p_hwfn, &p_hwfn->p_rdma_info->cid_map, cid);
if (cid < QED_IWARP_PREALLOC_CNT)
qed_bmap_release_id(p_hwfn, &p_hwfn->p_rdma_info->tcp_cid_map,
cid);
else
qed_bmap_release_id(p_hwfn, &p_hwfn->p_rdma_info->cid_map, cid);
spin_unlock_bh(&p_hwfn->p_rdma_info->lock); spin_unlock_bh(&p_hwfn->p_rdma_info->lock);
} }
...@@ -107,6 +139,45 @@ static int qed_iwarp_alloc_cid(struct qed_hwfn *p_hwfn, u32 *cid) ...@@ -107,6 +139,45 @@ static int qed_iwarp_alloc_cid(struct qed_hwfn *p_hwfn, u32 *cid)
return rc; return rc;
} }
static void qed_iwarp_set_tcp_cid(struct qed_hwfn *p_hwfn, u32 cid)
{
cid -= qed_cxt_get_proto_cid_start(p_hwfn, p_hwfn->p_rdma_info->proto);
spin_lock_bh(&p_hwfn->p_rdma_info->lock);
qed_bmap_set_id(p_hwfn, &p_hwfn->p_rdma_info->tcp_cid_map, cid);
spin_unlock_bh(&p_hwfn->p_rdma_info->lock);
}
/* This function allocates a cid for passive tcp (called from syn receive)
* the reason it's separate from the regular cid allocation is because it
* is assured that these cids already have ilt allocated. They are preallocated
* to ensure that we won't need to allocate memory during syn processing
*/
static int qed_iwarp_alloc_tcp_cid(struct qed_hwfn *p_hwfn, u32 *cid)
{
int rc;
spin_lock_bh(&p_hwfn->p_rdma_info->lock);
rc = qed_rdma_bmap_alloc_id(p_hwfn,
&p_hwfn->p_rdma_info->tcp_cid_map, cid);
spin_unlock_bh(&p_hwfn->p_rdma_info->lock);
if (rc) {
DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
"can't allocate iwarp tcp cid max-count=%d\n",
p_hwfn->p_rdma_info->tcp_cid_map.max_count);
*cid = QED_IWARP_INVALID_TCP_CID;
return rc;
}
*cid += qed_cxt_get_proto_cid_start(p_hwfn,
p_hwfn->p_rdma_info->proto);
return 0;
}
int qed_iwarp_create_qp(struct qed_hwfn *p_hwfn, int qed_iwarp_create_qp(struct qed_hwfn *p_hwfn,
struct qed_rdma_qp *qp, struct qed_rdma_qp *qp,
struct qed_rdma_create_qp_out_params *out_params) struct qed_rdma_create_qp_out_params *out_params)
...@@ -403,6 +474,26 @@ int qed_iwarp_fw_destroy(struct qed_hwfn *p_hwfn, struct qed_rdma_qp *qp) ...@@ -403,6 +474,26 @@ int qed_iwarp_fw_destroy(struct qed_hwfn *p_hwfn, struct qed_rdma_qp *qp)
return rc; return rc;
} }
static void qed_iwarp_destroy_ep(struct qed_hwfn *p_hwfn,
struct qed_iwarp_ep *ep,
bool remove_from_active_list)
{
dma_free_coherent(&p_hwfn->cdev->pdev->dev,
sizeof(*ep->ep_buffer_virt),
ep->ep_buffer_virt, ep->ep_buffer_phys);
if (remove_from_active_list) {
spin_lock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock);
list_del(&ep->list_entry);
spin_unlock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock);
}
if (ep->qp)
ep->qp->ep = NULL;
kfree(ep);
}
int qed_iwarp_destroy_qp(struct qed_hwfn *p_hwfn, struct qed_rdma_qp *qp) int qed_iwarp_destroy_qp(struct qed_hwfn *p_hwfn, struct qed_rdma_qp *qp)
{ {
int rc = 0; int rc = 0;
...@@ -424,6 +515,507 @@ int qed_iwarp_destroy_qp(struct qed_hwfn *p_hwfn, struct qed_rdma_qp *qp) ...@@ -424,6 +515,507 @@ int qed_iwarp_destroy_qp(struct qed_hwfn *p_hwfn, struct qed_rdma_qp *qp)
return rc; return rc;
} }
static int
qed_iwarp_create_ep(struct qed_hwfn *p_hwfn, struct qed_iwarp_ep **ep_out)
{
struct qed_iwarp_ep *ep;
int rc;
ep = kzalloc(sizeof(*ep), GFP_KERNEL);
if (!ep)
return -ENOMEM;
ep->state = QED_IWARP_EP_INIT;
ep->ep_buffer_virt = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
sizeof(*ep->ep_buffer_virt),
&ep->ep_buffer_phys,
GFP_KERNEL);
if (!ep->ep_buffer_virt) {
rc = -ENOMEM;
goto err;
}
ep->sig = QED_EP_SIG;
*ep_out = ep;
return 0;
err:
kfree(ep);
return rc;
}
static void
qed_iwarp_print_tcp_ramrod(struct qed_hwfn *p_hwfn,
struct iwarp_tcp_offload_ramrod_data *p_tcp_ramrod)
{
DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "local_mac=%x %x %x, remote_mac=%x %x %x\n",
p_tcp_ramrod->tcp.local_mac_addr_lo,
p_tcp_ramrod->tcp.local_mac_addr_mid,
p_tcp_ramrod->tcp.local_mac_addr_hi,
p_tcp_ramrod->tcp.remote_mac_addr_lo,
p_tcp_ramrod->tcp.remote_mac_addr_mid,
p_tcp_ramrod->tcp.remote_mac_addr_hi);
if (p_tcp_ramrod->tcp.ip_version == TCP_IPV4) {
DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
"local_ip=%pI4h:%x, remote_ip=%pI4h%x, vlan=%x\n",
p_tcp_ramrod->tcp.local_ip,
p_tcp_ramrod->tcp.local_port,
p_tcp_ramrod->tcp.remote_ip,
p_tcp_ramrod->tcp.remote_port,
p_tcp_ramrod->tcp.vlan_id);
} else {
DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
"local_ip=%pI6h:%x, remote_ip=%pI6h:%x, vlan=%x\n",
p_tcp_ramrod->tcp.local_ip,
p_tcp_ramrod->tcp.local_port,
p_tcp_ramrod->tcp.remote_ip,
p_tcp_ramrod->tcp.remote_port,
p_tcp_ramrod->tcp.vlan_id);
}
DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
"flow_label=%x, ttl=%x, tos_or_tc=%x, mss=%x, rcv_wnd_scale=%x, connect_mode=%x, flags=%x\n",
p_tcp_ramrod->tcp.flow_label,
p_tcp_ramrod->tcp.ttl,
p_tcp_ramrod->tcp.tos_or_tc,
p_tcp_ramrod->tcp.mss,
p_tcp_ramrod->tcp.rcv_wnd_scale,
p_tcp_ramrod->tcp.connect_mode,
p_tcp_ramrod->tcp.flags);
DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "syn_ip_payload_length=%x, lo=%x, hi=%x\n",
p_tcp_ramrod->tcp.syn_ip_payload_length,
p_tcp_ramrod->tcp.syn_phy_addr_lo,
p_tcp_ramrod->tcp.syn_phy_addr_hi);
}
static int
qed_iwarp_tcp_offload(struct qed_hwfn *p_hwfn, struct qed_iwarp_ep *ep)
{
struct qed_iwarp_info *iwarp_info = &p_hwfn->p_rdma_info->iwarp;
struct iwarp_tcp_offload_ramrod_data *p_tcp_ramrod;
struct tcp_offload_params_opt2 *tcp;
struct qed_sp_init_data init_data;
struct qed_spq_entry *p_ent;
dma_addr_t async_output_phys;
dma_addr_t in_pdata_phys;
u16 physical_q;
u8 tcp_flags;
int rc;
int i;
memset(&init_data, 0, sizeof(init_data));
init_data.cid = ep->tcp_cid;
init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
init_data.comp_mode = QED_SPQ_MODE_CB;
rc = qed_sp_init_request(p_hwfn, &p_ent,
IWARP_RAMROD_CMD_ID_TCP_OFFLOAD,
PROTOCOLID_IWARP, &init_data);
if (rc)
return rc;
p_tcp_ramrod = &p_ent->ramrod.iwarp_tcp_offload;
in_pdata_phys = ep->ep_buffer_phys +
offsetof(struct qed_iwarp_ep_memory, in_pdata);
DMA_REGPAIR_LE(p_tcp_ramrod->iwarp.incoming_ulp_buffer.addr,
in_pdata_phys);
p_tcp_ramrod->iwarp.incoming_ulp_buffer.len =
cpu_to_le16(sizeof(ep->ep_buffer_virt->in_pdata));
async_output_phys = ep->ep_buffer_phys +
offsetof(struct qed_iwarp_ep_memory, async_output);
DMA_REGPAIR_LE(p_tcp_ramrod->iwarp.async_eqe_output_buf,
async_output_phys);
p_tcp_ramrod->iwarp.handle_for_async.hi = cpu_to_le32(PTR_HI(ep));
p_tcp_ramrod->iwarp.handle_for_async.lo = cpu_to_le32(PTR_LO(ep));
physical_q = qed_get_cm_pq_idx(p_hwfn, PQ_FLAGS_OFLD);
p_tcp_ramrod->iwarp.physical_q0 = cpu_to_le16(physical_q);
physical_q = qed_get_cm_pq_idx(p_hwfn, PQ_FLAGS_ACK);
p_tcp_ramrod->iwarp.physical_q1 = cpu_to_le16(physical_q);
p_tcp_ramrod->iwarp.mpa_mode = iwarp_info->mpa_rev;
tcp = &p_tcp_ramrod->tcp;
qed_set_fw_mac_addr(&tcp->remote_mac_addr_hi,
&tcp->remote_mac_addr_mid,
&tcp->remote_mac_addr_lo, ep->remote_mac_addr);
qed_set_fw_mac_addr(&tcp->local_mac_addr_hi, &tcp->local_mac_addr_mid,
&tcp->local_mac_addr_lo, ep->local_mac_addr);
tcp->vlan_id = cpu_to_le16(ep->cm_info.vlan);
tcp_flags = p_hwfn->p_rdma_info->iwarp.tcp_flags;
tcp->flags = 0;
SET_FIELD(tcp->flags, TCP_OFFLOAD_PARAMS_OPT2_TS_EN,
!!(tcp_flags & QED_IWARP_TS_EN));
SET_FIELD(tcp->flags, TCP_OFFLOAD_PARAMS_OPT2_DA_EN,
!!(tcp_flags & QED_IWARP_DA_EN));
tcp->ip_version = ep->cm_info.ip_version;
for (i = 0; i < 4; i++) {
tcp->remote_ip[i] = cpu_to_le32(ep->cm_info.remote_ip[i]);
tcp->local_ip[i] = cpu_to_le32(ep->cm_info.local_ip[i]);
}
tcp->remote_port = cpu_to_le16(ep->cm_info.remote_port);
tcp->local_port = cpu_to_le16(ep->cm_info.local_port);
tcp->mss = cpu_to_le16(ep->mss);
tcp->flow_label = 0;
tcp->ttl = 0x40;
tcp->tos_or_tc = 0;
tcp->rcv_wnd_scale = (u8)p_hwfn->p_rdma_info->iwarp.rcv_wnd_scale;
tcp->connect_mode = ep->connect_mode;
if (ep->connect_mode == TCP_CONNECT_PASSIVE) {
tcp->syn_ip_payload_length =
cpu_to_le16(ep->syn_ip_payload_length);
tcp->syn_phy_addr_hi = DMA_HI_LE(ep->syn_phy_addr);
tcp->syn_phy_addr_lo = DMA_LO_LE(ep->syn_phy_addr);
}
qed_iwarp_print_tcp_ramrod(p_hwfn, p_tcp_ramrod);
rc = qed_spq_post(p_hwfn, p_ent, NULL);
DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
"EP(0x%x) Offload completed rc=%d\n", ep->tcp_cid, rc);
return rc;
}
static void
qed_iwarp_mpa_received(struct qed_hwfn *p_hwfn, struct qed_iwarp_ep *ep)
{
struct qed_iwarp_info *iwarp_info = &p_hwfn->p_rdma_info->iwarp;
struct qed_iwarp_cm_event_params params;
struct mpa_v2_hdr *mpa_v2;
union async_output *async_data;
u16 mpa_ord, mpa_ird;
u8 mpa_hdr_size = 0;
u8 mpa_rev;
async_data = &ep->ep_buffer_virt->async_output;
mpa_rev = async_data->mpa_request.mpa_handshake_mode;
DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
"private_data_len=%x handshake_mode=%x private_data=(%x)\n",
async_data->mpa_request.ulp_data_len,
mpa_rev, *((u32 *)((u8 *)ep->ep_buffer_virt->in_pdata)));
if (mpa_rev == MPA_NEGOTIATION_TYPE_ENHANCED) {
/* Read ord/ird values from private data buffer */
mpa_v2 = (struct mpa_v2_hdr *)ep->ep_buffer_virt->in_pdata;
mpa_hdr_size = sizeof(*mpa_v2);
mpa_ord = ntohs(mpa_v2->ord);
mpa_ird = ntohs(mpa_v2->ird);
/* Temprary store in cm_info incoming ord/ird requested, later
* replace with negotiated value during accept
*/
ep->cm_info.ord = (u8)min_t(u16,
(mpa_ord & MPA_V2_IRD_ORD_MASK),
QED_IWARP_ORD_DEFAULT);
ep->cm_info.ird = (u8)min_t(u16,
(mpa_ird & MPA_V2_IRD_ORD_MASK),
QED_IWARP_IRD_DEFAULT);
/* Peer2Peer negotiation */
ep->rtr_type = MPA_RTR_TYPE_NONE;
if (mpa_ird & MPA_V2_PEER2PEER_MODEL) {
if (mpa_ord & MPA_V2_WRITE_RTR)
ep->rtr_type |= MPA_RTR_TYPE_ZERO_WRITE;
if (mpa_ord & MPA_V2_READ_RTR)
ep->rtr_type |= MPA_RTR_TYPE_ZERO_READ;
if (mpa_ird & MPA_V2_SEND_RTR)
ep->rtr_type |= MPA_RTR_TYPE_ZERO_SEND;
ep->rtr_type &= iwarp_info->rtr_type;
/* if we're left with no match send our capabilities */
if (ep->rtr_type == MPA_RTR_TYPE_NONE)
ep->rtr_type = iwarp_info->rtr_type;
}
ep->mpa_rev = MPA_NEGOTIATION_TYPE_ENHANCED;
} else {
ep->cm_info.ord = QED_IWARP_ORD_DEFAULT;
ep->cm_info.ird = QED_IWARP_IRD_DEFAULT;
ep->mpa_rev = MPA_NEGOTIATION_TYPE_BASIC;
}
DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
"MPA_NEGOTIATE (v%d): ORD: 0x%x IRD: 0x%x rtr:0x%x ulp_data_len = %x mpa_hdr_size = %x\n",
mpa_rev, ep->cm_info.ord, ep->cm_info.ird, ep->rtr_type,
async_data->mpa_request.ulp_data_len, mpa_hdr_size);
/* Strip mpa v2 hdr from private data before sending to upper layer */
ep->cm_info.private_data = ep->ep_buffer_virt->in_pdata + mpa_hdr_size;
ep->cm_info.private_data_len = async_data->mpa_request.ulp_data_len -
mpa_hdr_size;
params.event = QED_IWARP_EVENT_MPA_REQUEST;
params.cm_info = &ep->cm_info;
params.ep_context = ep;
params.status = 0;
ep->state = QED_IWARP_EP_MPA_REQ_RCVD;
ep->event_cb(ep->cb_context, &params);
}
static int
qed_iwarp_mpa_offload(struct qed_hwfn *p_hwfn, struct qed_iwarp_ep *ep)
{
struct iwarp_mpa_offload_ramrod_data *p_mpa_ramrod;
struct qed_sp_init_data init_data;
dma_addr_t async_output_phys;
struct qed_spq_entry *p_ent;
dma_addr_t out_pdata_phys;
dma_addr_t in_pdata_phys;
struct qed_rdma_qp *qp;
bool reject;
int rc;
if (!ep)
return -EINVAL;
qp = ep->qp;
reject = !qp;
memset(&init_data, 0, sizeof(init_data));
init_data.cid = reject ? ep->tcp_cid : qp->icid;
init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
init_data.comp_mode = QED_SPQ_MODE_EBLOCK;
rc = qed_sp_init_request(p_hwfn, &p_ent,
IWARP_RAMROD_CMD_ID_MPA_OFFLOAD,
PROTOCOLID_IWARP, &init_data);
if (rc)
return rc;
p_mpa_ramrod = &p_ent->ramrod.iwarp_mpa_offload;
out_pdata_phys = ep->ep_buffer_phys +
offsetof(struct qed_iwarp_ep_memory, out_pdata);
DMA_REGPAIR_LE(p_mpa_ramrod->common.outgoing_ulp_buffer.addr,
out_pdata_phys);
p_mpa_ramrod->common.outgoing_ulp_buffer.len =
ep->cm_info.private_data_len;
p_mpa_ramrod->common.crc_needed = p_hwfn->p_rdma_info->iwarp.crc_needed;
p_mpa_ramrod->common.out_rq.ord = ep->cm_info.ord;
p_mpa_ramrod->common.out_rq.ird = ep->cm_info.ird;
p_mpa_ramrod->tcp_cid = p_hwfn->hw_info.opaque_fid << 16 | ep->tcp_cid;
in_pdata_phys = ep->ep_buffer_phys +
offsetof(struct qed_iwarp_ep_memory, in_pdata);
p_mpa_ramrod->tcp_connect_side = ep->connect_mode;
DMA_REGPAIR_LE(p_mpa_ramrod->incoming_ulp_buffer.addr,
in_pdata_phys);
p_mpa_ramrod->incoming_ulp_buffer.len =
cpu_to_le16(sizeof(ep->ep_buffer_virt->in_pdata));
async_output_phys = ep->ep_buffer_phys +
offsetof(struct qed_iwarp_ep_memory, async_output);
DMA_REGPAIR_LE(p_mpa_ramrod->async_eqe_output_buf,
async_output_phys);
p_mpa_ramrod->handle_for_async.hi = cpu_to_le32(PTR_HI(ep));
p_mpa_ramrod->handle_for_async.lo = cpu_to_le32(PTR_LO(ep));
if (!reject) {
DMA_REGPAIR_LE(p_mpa_ramrod->shared_queue_addr,
qp->shared_queue_phys_addr);
p_mpa_ramrod->stats_counter_id =
RESC_START(p_hwfn, QED_RDMA_STATS_QUEUE) + qp->stats_queue;
} else {
p_mpa_ramrod->common.reject = 1;
}
p_mpa_ramrod->mode = ep->mpa_rev;
SET_FIELD(p_mpa_ramrod->rtr_pref,
IWARP_MPA_OFFLOAD_RAMROD_DATA_RTR_SUPPORTED, ep->rtr_type);
ep->state = QED_IWARP_EP_MPA_OFFLOADED;
rc = qed_spq_post(p_hwfn, p_ent, NULL);
if (!reject)
ep->cid = qp->icid; /* Now they're migrated. */
DP_VERBOSE(p_hwfn,
QED_MSG_RDMA,
"QP(0x%x) EP(0x%x) MPA Offload rc = %d IRD=0x%x ORD=0x%x rtr_type=%d mpa_rev=%d reject=%d\n",
reject ? 0xffff : qp->icid,
ep->tcp_cid,
rc,
ep->cm_info.ird,
ep->cm_info.ord, ep->rtr_type, ep->mpa_rev, reject);
return rc;
}
static void
qed_iwarp_return_ep(struct qed_hwfn *p_hwfn, struct qed_iwarp_ep *ep)
{
ep->state = QED_IWARP_EP_INIT;
if (ep->qp)
ep->qp->ep = NULL;
ep->qp = NULL;
memset(&ep->cm_info, 0, sizeof(ep->cm_info));
if (ep->tcp_cid == QED_IWARP_INVALID_TCP_CID) {
/* We don't care about the return code, it's ok if tcp_cid
* remains invalid...in this case we'll defer allocation
*/
qed_iwarp_alloc_tcp_cid(p_hwfn, &ep->tcp_cid);
}
spin_lock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock);
list_del(&ep->list_entry);
list_add_tail(&ep->list_entry,
&p_hwfn->p_rdma_info->iwarp.ep_free_list);
spin_unlock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock);
}
#define QED_IWARP_CONNECT_MODE_STRING(ep) \
((ep)->connect_mode == TCP_CONNECT_PASSIVE) ? "Passive" : "Active"
/* Called as a result of the event:
* IWARP_EVENT_TYPE_ASYNC_MPA_HANDSHAKE_COMPLETE
*/
static void
qed_iwarp_mpa_complete(struct qed_hwfn *p_hwfn,
struct qed_iwarp_ep *ep, u8 fw_return_code)
{
struct qed_iwarp_cm_event_params params;
params.event = QED_IWARP_EVENT_PASSIVE_COMPLETE;
DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
"MPA_NEGOTIATE (v%d): ORD: 0x%x IRD: 0x%x\n",
ep->mpa_rev, ep->cm_info.ord, ep->cm_info.ird);
params.cm_info = &ep->cm_info;
params.ep_context = ep;
ep->state = QED_IWARP_EP_CLOSED;
switch (fw_return_code) {
case RDMA_RETURN_OK:
ep->qp->max_rd_atomic_req = ep->cm_info.ord;
ep->qp->max_rd_atomic_resp = ep->cm_info.ird;
qed_iwarp_modify_qp(p_hwfn, ep->qp, QED_IWARP_QP_STATE_RTS, 1);
ep->state = QED_IWARP_EP_ESTABLISHED;
params.status = 0;
break;
default:
params.status = -ECONNRESET;
break;
}
ep->event_cb(ep->cb_context, &params);
}
static void
qed_iwarp_mpa_v2_set_private(struct qed_hwfn *p_hwfn,
struct qed_iwarp_ep *ep, u8 *mpa_data_size)
{
struct mpa_v2_hdr *mpa_v2_params;
u16 mpa_ird, mpa_ord;
*mpa_data_size = 0;
if (MPA_REV2(ep->mpa_rev)) {
mpa_v2_params =
(struct mpa_v2_hdr *)ep->ep_buffer_virt->out_pdata;
*mpa_data_size = sizeof(*mpa_v2_params);
mpa_ird = (u16)ep->cm_info.ird;
mpa_ord = (u16)ep->cm_info.ord;
if (ep->rtr_type != MPA_RTR_TYPE_NONE) {
mpa_ird |= MPA_V2_PEER2PEER_MODEL;
if (ep->rtr_type & MPA_RTR_TYPE_ZERO_SEND)
mpa_ird |= MPA_V2_SEND_RTR;
if (ep->rtr_type & MPA_RTR_TYPE_ZERO_WRITE)
mpa_ord |= MPA_V2_WRITE_RTR;
if (ep->rtr_type & MPA_RTR_TYPE_ZERO_READ)
mpa_ord |= MPA_V2_READ_RTR;
}
mpa_v2_params->ird = htons(mpa_ird);
mpa_v2_params->ord = htons(mpa_ord);
DP_VERBOSE(p_hwfn,
QED_MSG_RDMA,
"MPA_NEGOTIATE Header: [%x ord:%x ird] %x ord:%x ird:%x peer2peer:%x rtr_send:%x rtr_write:%x rtr_read:%x\n",
mpa_v2_params->ird,
mpa_v2_params->ord,
*((u32 *)mpa_v2_params),
mpa_ord & MPA_V2_IRD_ORD_MASK,
mpa_ird & MPA_V2_IRD_ORD_MASK,
!!(mpa_ird & MPA_V2_PEER2PEER_MODEL),
!!(mpa_ird & MPA_V2_SEND_RTR),
!!(mpa_ord & MPA_V2_WRITE_RTR),
!!(mpa_ord & MPA_V2_READ_RTR));
}
}
static struct qed_iwarp_ep *qed_iwarp_get_free_ep(struct qed_hwfn *p_hwfn)
{
struct qed_iwarp_ep *ep = NULL;
int rc;
spin_lock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock);
if (list_empty(&p_hwfn->p_rdma_info->iwarp.ep_free_list)) {
DP_ERR(p_hwfn, "Ep list is empty\n");
goto out;
}
ep = list_first_entry(&p_hwfn->p_rdma_info->iwarp.ep_free_list,
struct qed_iwarp_ep, list_entry);
/* in some cases we could have failed allocating a tcp cid when added
* from accept / failure... retry now..this is not the common case.
*/
if (ep->tcp_cid == QED_IWARP_INVALID_TCP_CID) {
rc = qed_iwarp_alloc_tcp_cid(p_hwfn, &ep->tcp_cid);
/* if we fail we could look for another entry with a valid
* tcp_cid, but since we don't expect to reach this anyway
* it's not worth the handling
*/
if (rc) {
ep->tcp_cid = QED_IWARP_INVALID_TCP_CID;
ep = NULL;
goto out;
}
}
list_del(&ep->list_entry);
out:
spin_unlock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock);
return ep;
}
#define QED_IWARP_MAX_CID_CLEAN_TIME 100 #define QED_IWARP_MAX_CID_CLEAN_TIME 100
#define QED_IWARP_MAX_NO_PROGRESS_CNT 5 #define QED_IWARP_MAX_NO_PROGRESS_CNT 5
...@@ -465,20 +1057,213 @@ qed_iwarp_wait_cid_map_cleared(struct qed_hwfn *p_hwfn, struct qed_bmap *bmap) ...@@ -465,20 +1057,213 @@ qed_iwarp_wait_cid_map_cleared(struct qed_hwfn *p_hwfn, struct qed_bmap *bmap)
static int qed_iwarp_wait_for_all_cids(struct qed_hwfn *p_hwfn) static int qed_iwarp_wait_for_all_cids(struct qed_hwfn *p_hwfn)
{ {
int rc;
int i;
rc = qed_iwarp_wait_cid_map_cleared(p_hwfn,
&p_hwfn->p_rdma_info->tcp_cid_map);
if (rc)
return rc;
/* Now free the tcp cids from the main cid map */
for (i = 0; i < QED_IWARP_PREALLOC_CNT; i++)
qed_bmap_release_id(p_hwfn, &p_hwfn->p_rdma_info->cid_map, i);
/* Now wait for all cids to be completed */ /* Now wait for all cids to be completed */
return qed_iwarp_wait_cid_map_cleared(p_hwfn, return qed_iwarp_wait_cid_map_cleared(p_hwfn,
&p_hwfn->p_rdma_info->cid_map); &p_hwfn->p_rdma_info->cid_map);
} }
static void qed_iwarp_free_prealloc_ep(struct qed_hwfn *p_hwfn)
{
struct qed_iwarp_ep *ep;
while (!list_empty(&p_hwfn->p_rdma_info->iwarp.ep_free_list)) {
spin_lock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock);
ep = list_first_entry(&p_hwfn->p_rdma_info->iwarp.ep_free_list,
struct qed_iwarp_ep, list_entry);
if (!ep) {
spin_unlock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock);
break;
}
list_del(&ep->list_entry);
spin_unlock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock);
if (ep->tcp_cid != QED_IWARP_INVALID_TCP_CID)
qed_iwarp_cid_cleaned(p_hwfn, ep->tcp_cid);
qed_iwarp_destroy_ep(p_hwfn, ep, false);
}
}
static int qed_iwarp_prealloc_ep(struct qed_hwfn *p_hwfn, bool init)
{
struct qed_iwarp_ep *ep;
int rc = 0;
int count;
u32 cid;
int i;
count = init ? QED_IWARP_PREALLOC_CNT : 1;
for (i = 0; i < count; i++) {
rc = qed_iwarp_create_ep(p_hwfn, &ep);
if (rc)
return rc;
/* During initialization we allocate from the main pool,
* afterwards we allocate only from the tcp_cid.
*/
if (init) {
rc = qed_iwarp_alloc_cid(p_hwfn, &cid);
if (rc)
goto err;
qed_iwarp_set_tcp_cid(p_hwfn, cid);
} else {
/* We don't care about the return code, it's ok if
* tcp_cid remains invalid...in this case we'll
* defer allocation
*/
qed_iwarp_alloc_tcp_cid(p_hwfn, &cid);
}
ep->tcp_cid = cid;
spin_lock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock);
list_add_tail(&ep->list_entry,
&p_hwfn->p_rdma_info->iwarp.ep_free_list);
spin_unlock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock);
}
return rc;
err:
qed_iwarp_destroy_ep(p_hwfn, ep, false);
return rc;
}
int qed_iwarp_alloc(struct qed_hwfn *p_hwfn) int qed_iwarp_alloc(struct qed_hwfn *p_hwfn)
{ {
int rc;
/* Allocate bitmap for tcp cid. These are used by passive side
* to ensure it can allocate a tcp cid during dpc that was
* pre-acquired and doesn't require dynamic allocation of ilt
*/
rc = qed_rdma_bmap_alloc(p_hwfn, &p_hwfn->p_rdma_info->tcp_cid_map,
QED_IWARP_PREALLOC_CNT, "TCP_CID");
if (rc) {
DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
"Failed to allocate tcp cid, rc = %d\n", rc);
return rc;
}
INIT_LIST_HEAD(&p_hwfn->p_rdma_info->iwarp.ep_free_list);
spin_lock_init(&p_hwfn->p_rdma_info->iwarp.iw_lock); spin_lock_init(&p_hwfn->p_rdma_info->iwarp.iw_lock);
return 0; return qed_iwarp_prealloc_ep(p_hwfn, true);
} }
void qed_iwarp_resc_free(struct qed_hwfn *p_hwfn) void qed_iwarp_resc_free(struct qed_hwfn *p_hwfn)
{ {
qed_rdma_bmap_free(p_hwfn, &p_hwfn->p_rdma_info->tcp_cid_map, 1);
}
int qed_iwarp_accept(void *rdma_cxt, struct qed_iwarp_accept_in *iparams)
{
struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt;
struct qed_iwarp_ep *ep;
u8 mpa_data_size = 0;
int rc;
ep = (struct qed_iwarp_ep *)iparams->ep_context;
if (!ep) {
DP_ERR(p_hwfn, "Ep Context receive in accept is NULL\n");
return -EINVAL;
}
DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "QP(0x%x) EP(0x%x)\n",
iparams->qp->icid, ep->tcp_cid);
if ((iparams->ord > QED_IWARP_ORD_DEFAULT) ||
(iparams->ird > QED_IWARP_IRD_DEFAULT)) {
DP_VERBOSE(p_hwfn,
QED_MSG_RDMA,
"QP(0x%x) EP(0x%x) ERROR: Invalid ord(0x%x)/ird(0x%x)\n",
iparams->qp->icid,
ep->tcp_cid, iparams->ord, iparams->ord);
return -EINVAL;
}
qed_iwarp_prealloc_ep(p_hwfn, false);
ep->cb_context = iparams->cb_context;
ep->qp = iparams->qp;
ep->qp->ep = ep;
if (ep->mpa_rev == MPA_NEGOTIATION_TYPE_ENHANCED) {
/* Negotiate ord/ird: if upperlayer requested ord larger than
* ird advertised by remote, we need to decrease our ord
*/
if (iparams->ord > ep->cm_info.ird)
iparams->ord = ep->cm_info.ird;
if ((ep->rtr_type & MPA_RTR_TYPE_ZERO_READ) &&
(iparams->ird == 0))
iparams->ird = 1;
}
/* Update cm_info ord/ird to be negotiated values */
ep->cm_info.ord = iparams->ord;
ep->cm_info.ird = iparams->ird;
qed_iwarp_mpa_v2_set_private(p_hwfn, ep, &mpa_data_size);
ep->cm_info.private_data = ep->ep_buffer_virt->out_pdata;
ep->cm_info.private_data_len = iparams->private_data_len +
mpa_data_size;
memcpy((u8 *)ep->ep_buffer_virt->out_pdata + mpa_data_size,
iparams->private_data, iparams->private_data_len);
rc = qed_iwarp_mpa_offload(p_hwfn, ep);
if (rc)
qed_iwarp_modify_qp(p_hwfn,
iparams->qp, QED_IWARP_QP_STATE_ERROR, 1);
return rc;
}
int qed_iwarp_reject(void *rdma_cxt, struct qed_iwarp_reject_in *iparams)
{
struct qed_hwfn *p_hwfn = rdma_cxt;
struct qed_iwarp_ep *ep;
u8 mpa_data_size = 0;
ep = iparams->ep_context;
if (!ep) {
DP_ERR(p_hwfn, "Ep Context receive in reject is NULL\n");
return -EINVAL;
}
DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "EP(0x%x)\n", ep->tcp_cid);
ep->cb_context = iparams->cb_context;
ep->qp = NULL;
qed_iwarp_mpa_v2_set_private(p_hwfn, ep, &mpa_data_size);
ep->cm_info.private_data = ep->ep_buffer_virt->out_pdata;
ep->cm_info.private_data_len = iparams->private_data_len +
mpa_data_size;
memcpy((u8 *)ep->ep_buffer_virt->out_pdata + mpa_data_size,
iparams->private_data, iparams->private_data_len);
return qed_iwarp_mpa_offload(p_hwfn, ep);
} }
static void static void
...@@ -526,6 +1311,38 @@ qed_iwarp_ll2_post_rx(struct qed_hwfn *p_hwfn, ...@@ -526,6 +1311,38 @@ qed_iwarp_ll2_post_rx(struct qed_hwfn *p_hwfn,
return rc; return rc;
} }
static bool
qed_iwarp_ep_exists(struct qed_hwfn *p_hwfn, struct qed_iwarp_cm_info *cm_info)
{
struct qed_iwarp_ep *ep = NULL;
bool found = false;
list_for_each_entry(ep,
&p_hwfn->p_rdma_info->iwarp.ep_list,
list_entry) {
if ((ep->cm_info.local_port == cm_info->local_port) &&
(ep->cm_info.remote_port == cm_info->remote_port) &&
(ep->cm_info.vlan == cm_info->vlan) &&
!memcmp(&ep->cm_info.local_ip, cm_info->local_ip,
sizeof(cm_info->local_ip)) &&
!memcmp(&ep->cm_info.remote_ip, cm_info->remote_ip,
sizeof(cm_info->remote_ip))) {
found = true;
break;
}
}
if (found) {
DP_NOTICE(p_hwfn,
"SYN received on active connection - dropping\n");
qed_iwarp_print_cm_info(p_hwfn, cm_info);
return true;
}
return false;
}
static struct qed_iwarp_listener * static struct qed_iwarp_listener *
qed_iwarp_get_listener(struct qed_hwfn *p_hwfn, qed_iwarp_get_listener(struct qed_hwfn *p_hwfn,
struct qed_iwarp_cm_info *cm_info) struct qed_iwarp_cm_info *cm_info)
...@@ -596,9 +1413,8 @@ qed_iwarp_parse_rx_pkt(struct qed_hwfn *p_hwfn, ...@@ -596,9 +1413,8 @@ qed_iwarp_parse_rx_pkt(struct qed_hwfn *p_hwfn,
eth_hlen = ETH_HLEN + (vlan_valid ? sizeof(u32) : 0); eth_hlen = ETH_HLEN + (vlan_valid ? sizeof(u32) : 0);
memcpy(remote_mac_addr, ethh->h_source, ETH_ALEN); ether_addr_copy(remote_mac_addr, ethh->h_source);
ether_addr_copy(local_mac_addr, ethh->h_dest);
memcpy(local_mac_addr, ethh->h_dest, ETH_ALEN);
DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "eth_type =%d source mac: %pM\n", DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "eth_type =%d source mac: %pM\n",
eth_type, ethh->h_source); eth_type, ethh->h_source);
...@@ -661,9 +1477,12 @@ qed_iwarp_ll2_comp_syn_pkt(void *cxt, struct qed_ll2_comp_rx_data *data) ...@@ -661,9 +1477,12 @@ qed_iwarp_ll2_comp_syn_pkt(void *cxt, struct qed_ll2_comp_rx_data *data)
struct qed_hwfn *p_hwfn = cxt; struct qed_hwfn *p_hwfn = cxt;
u8 remote_mac_addr[ETH_ALEN]; u8 remote_mac_addr[ETH_ALEN];
u8 local_mac_addr[ETH_ALEN]; u8 local_mac_addr[ETH_ALEN];
struct qed_iwarp_ep *ep;
int tcp_start_offset; int tcp_start_offset;
u8 ts_hdr_size = 0;
u8 ll2_syn_handle; u8 ll2_syn_handle;
int payload_len; int payload_len;
u32 hdr_size;
int rc; int rc;
memset(&cm_info, 0, sizeof(cm_info)); memset(&cm_info, 0, sizeof(cm_info));
...@@ -719,6 +1538,49 @@ qed_iwarp_ll2_comp_syn_pkt(void *cxt, struct qed_ll2_comp_rx_data *data) ...@@ -719,6 +1538,49 @@ qed_iwarp_ll2_comp_syn_pkt(void *cxt, struct qed_ll2_comp_rx_data *data)
} }
DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Received syn on listening port\n"); DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Received syn on listening port\n");
/* There may be an open ep on this connection if this is a syn
* retrasnmit... need to make sure there isn't...
*/
if (qed_iwarp_ep_exists(p_hwfn, &cm_info))
goto err;
ep = qed_iwarp_get_free_ep(p_hwfn);
if (!ep)
goto err;
spin_lock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock);
list_add_tail(&ep->list_entry, &p_hwfn->p_rdma_info->iwarp.ep_list);
spin_unlock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock);
ether_addr_copy(ep->remote_mac_addr, remote_mac_addr);
ether_addr_copy(ep->local_mac_addr, local_mac_addr);
memcpy(&ep->cm_info, &cm_info, sizeof(ep->cm_info));
if (p_hwfn->p_rdma_info->iwarp.tcp_flags & QED_IWARP_TS_EN)
ts_hdr_size = TIMESTAMP_HEADER_SIZE;
hdr_size = ((cm_info.ip_version == QED_TCP_IPV4) ? 40 : 60) +
ts_hdr_size;
ep->mss = p_hwfn->p_rdma_info->iwarp.max_mtu - hdr_size;
ep->mss = min_t(u16, QED_IWARP_MAX_FW_MSS, ep->mss);
ep->event_cb = listener->event_cb;
ep->cb_context = listener->cb_context;
ep->connect_mode = TCP_CONNECT_PASSIVE;
ep->syn = buf;
ep->syn_ip_payload_length = (u16)payload_len;
ep->syn_phy_addr = buf->data_phys_addr + data->u.placement_offset +
tcp_start_offset;
rc = qed_iwarp_tcp_offload(p_hwfn, ep);
if (rc) {
qed_iwarp_return_ep(p_hwfn, ep);
goto err;
}
return;
err: err:
qed_iwarp_ll2_post_rx(p_hwfn, buf, ll2_syn_handle); qed_iwarp_ll2_post_rx(p_hwfn, buf, ll2_syn_handle);
} }
...@@ -905,7 +1767,12 @@ int qed_iwarp_setup(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt, ...@@ -905,7 +1767,12 @@ int qed_iwarp_setup(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt,
iwarp_info->peer2peer = QED_IWARP_PARAM_P2P; iwarp_info->peer2peer = QED_IWARP_PARAM_P2P;
iwarp_info->rtr_type = MPA_RTR_TYPE_ZERO_SEND |
MPA_RTR_TYPE_ZERO_WRITE |
MPA_RTR_TYPE_ZERO_READ;
spin_lock_init(&p_hwfn->p_rdma_info->iwarp.qp_lock); spin_lock_init(&p_hwfn->p_rdma_info->iwarp.qp_lock);
INIT_LIST_HEAD(&p_hwfn->p_rdma_info->iwarp.ep_list);
INIT_LIST_HEAD(&p_hwfn->p_rdma_info->iwarp.listen_list); INIT_LIST_HEAD(&p_hwfn->p_rdma_info->iwarp.listen_list);
qed_spq_register_async_cb(p_hwfn, PROTOCOLID_IWARP, qed_spq_register_async_cb(p_hwfn, PROTOCOLID_IWARP,
...@@ -918,6 +1785,7 @@ int qed_iwarp_stop(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt) ...@@ -918,6 +1785,7 @@ int qed_iwarp_stop(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
{ {
int rc; int rc;
qed_iwarp_free_prealloc_ep(p_hwfn);
rc = qed_iwarp_wait_for_all_cids(p_hwfn); rc = qed_iwarp_wait_for_all_cids(p_hwfn);
if (rc) if (rc)
return rc; return rc;
...@@ -927,11 +1795,70 @@ int qed_iwarp_stop(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt) ...@@ -927,11 +1795,70 @@ int qed_iwarp_stop(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
return qed_iwarp_ll2_stop(p_hwfn, p_ptt); return qed_iwarp_ll2_stop(p_hwfn, p_ptt);
} }
void
qed_iwarp_connect_complete(struct qed_hwfn *p_hwfn,
struct qed_iwarp_ep *ep, u8 fw_return_code)
{
/* Done with the SYN packet, post back to ll2 rx */
qed_iwarp_ll2_post_rx(p_hwfn, ep->syn,
p_hwfn->p_rdma_info->iwarp.ll2_syn_handle);
ep->syn = NULL;
/* If connect failed - upper layer doesn't know about it */
qed_iwarp_mpa_received(p_hwfn, ep);
}
static inline bool
qed_iwarp_check_ep_ok(struct qed_hwfn *p_hwfn, struct qed_iwarp_ep *ep)
{
if (!ep || (ep->sig != QED_EP_SIG)) {
DP_ERR(p_hwfn, "ERROR ON ASYNC ep=%p\n", ep);
return false;
}
return true;
}
static int qed_iwarp_async_event(struct qed_hwfn *p_hwfn, static int qed_iwarp_async_event(struct qed_hwfn *p_hwfn,
u8 fw_event_code, u16 echo, u8 fw_event_code, u16 echo,
union event_ring_data *data, union event_ring_data *data,
u8 fw_return_code) u8 fw_return_code)
{ {
struct regpair *fw_handle = &data->rdma_data.async_handle;
struct qed_iwarp_ep *ep = NULL;
u16 cid;
ep = (struct qed_iwarp_ep *)(uintptr_t)HILO_64(fw_handle->hi,
fw_handle->lo);
switch (fw_event_code) {
case IWARP_EVENT_TYPE_ASYNC_CONNECT_COMPLETE:
/* Async completion after TCP 3-way handshake */
if (!qed_iwarp_check_ep_ok(p_hwfn, ep))
return -EINVAL;
DP_VERBOSE(p_hwfn,
QED_MSG_RDMA,
"EP(0x%x) IWARP_EVENT_TYPE_ASYNC_CONNECT_COMPLETE fw_ret_code=%d\n",
ep->tcp_cid, fw_return_code);
qed_iwarp_connect_complete(p_hwfn, ep, fw_return_code);
break;
case IWARP_EVENT_TYPE_ASYNC_MPA_HANDSHAKE_COMPLETE:
if (!qed_iwarp_check_ep_ok(p_hwfn, ep))
return -EINVAL;
DP_VERBOSE(p_hwfn,
QED_MSG_RDMA,
"QP(0x%x) IWARP_EVENT_TYPE_ASYNC_MPA_HANDSHAKE_COMPLETE fw_ret_code=%d\n",
ep->cid, fw_return_code);
qed_iwarp_mpa_complete(p_hwfn, ep, fw_return_code);
break;
case IWARP_EVENT_TYPE_ASYNC_CID_CLEANED:
cid = (u16)le32_to_cpu(fw_handle->lo);
DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
"(0x%x)IWARP_EVENT_TYPE_ASYNC_CID_CLEANED\n", cid);
qed_iwarp_cid_cleaned(p_hwfn, cid);
break;
}
return 0; return 0;
} }
......
...@@ -42,6 +42,8 @@ enum qed_iwarp_qp_state { ...@@ -42,6 +42,8 @@ enum qed_iwarp_qp_state {
enum qed_iwarp_qp_state qed_roce2iwarp_state(enum qed_roce_qp_state state); enum qed_iwarp_qp_state qed_roce2iwarp_state(enum qed_roce_qp_state state);
#define QED_IWARP_PREALLOC_CNT (256)
#define QED_IWARP_LL2_SYN_TX_SIZE (128) #define QED_IWARP_LL2_SYN_TX_SIZE (128)
#define QED_IWARP_LL2_SYN_RX_SIZE (256) #define QED_IWARP_LL2_SYN_RX_SIZE (256)
#define QED_IWARP_MAX_SYN_PKT_SIZE (128) #define QED_IWARP_MAX_SYN_PKT_SIZE (128)
...@@ -55,6 +57,8 @@ struct qed_iwarp_ll2_buff { ...@@ -55,6 +57,8 @@ struct qed_iwarp_ll2_buff {
struct qed_iwarp_info { struct qed_iwarp_info {
struct list_head listen_list; /* qed_iwarp_listener */ struct list_head listen_list; /* qed_iwarp_listener */
struct list_head ep_list; /* qed_iwarp_ep */
struct list_head ep_free_list; /* pre-allocated ep's */
spinlock_t iw_lock; /* for iwarp resources */ spinlock_t iw_lock; /* for iwarp resources */
spinlock_t qp_lock; /* for teardown races */ spinlock_t qp_lock; /* for teardown races */
u32 rcv_wnd_scale; u32 rcv_wnd_scale;
...@@ -68,6 +72,61 @@ struct qed_iwarp_info { ...@@ -68,6 +72,61 @@ struct qed_iwarp_info {
enum mpa_rtr_type rtr_type; enum mpa_rtr_type rtr_type;
}; };
enum qed_iwarp_ep_state {
QED_IWARP_EP_INIT,
QED_IWARP_EP_MPA_REQ_RCVD,
QED_IWARP_EP_MPA_OFFLOADED,
QED_IWARP_EP_ESTABLISHED,
QED_IWARP_EP_CLOSED
};
union async_output {
struct iwarp_eqe_data_mpa_async_completion mpa_response;
struct iwarp_eqe_data_tcp_async_completion mpa_request;
};
#define QED_MAX_PRIV_DATA_LEN (512)
struct qed_iwarp_ep_memory {
u8 in_pdata[QED_MAX_PRIV_DATA_LEN];
u8 out_pdata[QED_MAX_PRIV_DATA_LEN];
union async_output async_output;
};
/* Endpoint structure represents a TCP connection. This connection can be
* associated with a QP or not (in which case QP==NULL)
*/
struct qed_iwarp_ep {
struct list_head list_entry;
struct qed_rdma_qp *qp;
struct qed_iwarp_ep_memory *ep_buffer_virt;
dma_addr_t ep_buffer_phys;
enum qed_iwarp_ep_state state;
int sig;
struct qed_iwarp_cm_info cm_info;
enum tcp_connect_mode connect_mode;
enum mpa_rtr_type rtr_type;
enum mpa_negotiation_mode mpa_rev;
u32 tcp_cid;
u32 cid;
u16 mss;
u8 remote_mac_addr[6];
u8 local_mac_addr[6];
bool mpa_reply_processed;
/* For Passive side - syn packet related data */
u16 syn_ip_payload_length;
struct qed_iwarp_ll2_buff *syn;
dma_addr_t syn_phy_addr;
/* The event_cb function is called for asynchrounous events associated
* with the ep. It is initialized at different entry points depending
* on whether the ep is the tcp connection active side or passive side
* The cb_context is passed to the event_cb function.
*/
iwarp_event_handler event_cb;
void *cb_context;
};
struct qed_iwarp_listener { struct qed_iwarp_listener {
struct list_head list_entry; struct list_head list_entry;
...@@ -115,6 +174,9 @@ qed_iwarp_create_listen(void *rdma_cxt, ...@@ -115,6 +174,9 @@ qed_iwarp_create_listen(void *rdma_cxt,
struct qed_iwarp_listen_in *iparams, struct qed_iwarp_listen_in *iparams,
struct qed_iwarp_listen_out *oparams); struct qed_iwarp_listen_out *oparams);
int qed_iwarp_accept(void *rdma_cxt, struct qed_iwarp_accept_in *iparams);
int qed_iwarp_reject(void *rdma_cxt, struct qed_iwarp_reject_in *iparams);
int qed_iwarp_destroy_listen(void *rdma_cxt, void *handle); int qed_iwarp_destroy_listen(void *rdma_cxt, void *handle);
#endif #endif
...@@ -1227,19 +1227,6 @@ static enum eth_filter_action qed_filter_action(enum qed_filter_opcode opcode) ...@@ -1227,19 +1227,6 @@ static enum eth_filter_action qed_filter_action(enum qed_filter_opcode opcode)
return action; return action;
} }
static void qed_set_fw_mac_addr(__le16 *fw_msb,
__le16 *fw_mid,
__le16 *fw_lsb,
u8 *mac)
{
((u8 *)fw_msb)[0] = mac[1];
((u8 *)fw_msb)[1] = mac[0];
((u8 *)fw_mid)[0] = mac[3];
((u8 *)fw_mid)[1] = mac[2];
((u8 *)fw_lsb)[0] = mac[5];
((u8 *)fw_lsb)[1] = mac[4];
}
static int static int
qed_filter_ucast_common(struct qed_hwfn *p_hwfn, qed_filter_ucast_common(struct qed_hwfn *p_hwfn,
u16 opaque_fid, u16 opaque_fid,
......
...@@ -85,6 +85,7 @@ struct qed_rdma_info { ...@@ -85,6 +85,7 @@ struct qed_rdma_info {
struct qed_bmap qp_map; struct qed_bmap qp_map;
struct qed_bmap srq_map; struct qed_bmap srq_map;
struct qed_bmap cid_map; struct qed_bmap cid_map;
struct qed_bmap tcp_cid_map;
struct qed_bmap real_cid_map; struct qed_bmap real_cid_map;
struct qed_bmap dpi_map; struct qed_bmap dpi_map;
struct qed_bmap toggle_bits; struct qed_bmap toggle_bits;
...@@ -167,6 +168,7 @@ struct qed_rdma_qp { ...@@ -167,6 +168,7 @@ struct qed_rdma_qp {
void *shared_queue; void *shared_queue;
dma_addr_t shared_queue_phys_addr; dma_addr_t shared_queue_phys_addr;
struct qed_iwarp_ep *ep;
}; };
#if IS_ENABLED(CONFIG_QED_RDMA) #if IS_ENABLED(CONFIG_QED_RDMA)
......
...@@ -111,6 +111,8 @@ union ramrod_data { ...@@ -111,6 +111,8 @@ union ramrod_data {
struct rdma_srq_destroy_ramrod_data rdma_destroy_srq; struct rdma_srq_destroy_ramrod_data rdma_destroy_srq;
struct rdma_srq_modify_ramrod_data rdma_modify_srq; struct rdma_srq_modify_ramrod_data rdma_modify_srq;
struct iwarp_create_qp_ramrod_data iwarp_create_qp; struct iwarp_create_qp_ramrod_data iwarp_create_qp;
struct iwarp_tcp_offload_ramrod_data iwarp_tcp_offload;
struct iwarp_mpa_offload_ramrod_data iwarp_mpa_offload;
struct iwarp_modify_qp_ramrod_data iwarp_modify_qp; struct iwarp_modify_qp_ramrod_data iwarp_modify_qp;
struct iwarp_init_func_ramrod_data iwarp_init_func; struct iwarp_init_func_ramrod_data iwarp_init_func;
struct fcoe_init_ramrod_params fcoe_init; struct fcoe_init_ramrod_params fcoe_init;
......
...@@ -38,6 +38,8 @@ ...@@ -38,6 +38,8 @@
#include <linux/slab.h> #include <linux/slab.h>
/* dma_addr_t manip */ /* dma_addr_t manip */
#define PTR_LO(x) ((u32)(((uintptr_t)(x)) & 0xffffffff))
#define PTR_HI(x) ((u32)((((uintptr_t)(x)) >> 16) >> 16))
#define DMA_LO_LE(x) cpu_to_le32(lower_32_bits(x)) #define DMA_LO_LE(x) cpu_to_le32(lower_32_bits(x))
#define DMA_HI_LE(x) cpu_to_le32(upper_32_bits(x)) #define DMA_HI_LE(x) cpu_to_le32(upper_32_bits(x))
#define DMA_REGPAIR_LE(x, val) do { \ #define DMA_REGPAIR_LE(x, val) do { \
......
...@@ -471,7 +471,8 @@ struct qed_rdma_counters_out_params { ...@@ -471,7 +471,8 @@ struct qed_rdma_counters_out_params {
#define QED_ROCE_TX_FRAG_FAILURE (2) #define QED_ROCE_TX_FRAG_FAILURE (2)
enum qed_iwarp_event_type { enum qed_iwarp_event_type {
QED_IWARP_EVENT_MPA_REQUEST, /* Passive side request received */ QED_IWARP_EVENT_MPA_REQUEST, /* Passive side request received */
QED_IWARP_EVENT_PASSIVE_COMPLETE, /* ack on mpa response */
}; };
enum qed_tcp_ip_version { enum qed_tcp_ip_version {
...@@ -516,6 +517,23 @@ struct qed_iwarp_listen_out { ...@@ -516,6 +517,23 @@ struct qed_iwarp_listen_out {
void *handle; void *handle;
}; };
struct qed_iwarp_accept_in {
void *ep_context;
void *cb_context;
struct qed_rdma_qp *qp;
const void *private_data;
u16 private_data_len;
u8 ord;
u8 ird;
};
struct qed_iwarp_reject_in {
void *ep_context;
void *cb_context;
const void *private_data;
u16 private_data_len;
};
struct qed_roce_ll2_header { struct qed_roce_ll2_header {
void *vaddr; void *vaddr;
dma_addr_t baddr; dma_addr_t baddr;
...@@ -626,6 +644,12 @@ struct qed_rdma_ops { ...@@ -626,6 +644,12 @@ struct qed_rdma_ops {
struct qed_iwarp_listen_in *iparams, struct qed_iwarp_listen_in *iparams,
struct qed_iwarp_listen_out *oparams); struct qed_iwarp_listen_out *oparams);
int (*iwarp_accept)(void *rdma_cxt,
struct qed_iwarp_accept_in *iparams);
int (*iwarp_reject)(void *rdma_cxt,
struct qed_iwarp_reject_in *iparams);
int (*iwarp_destroy_listen)(void *rdma_cxt, void *handle); int (*iwarp_destroy_listen)(void *rdma_cxt, void *handle);
}; };
......
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