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qed*: LL2 callback operations 

LL2 today is interrupt driven - when tx/rx completion arrives [or any
other indication], qed needs to operate on the connection and pass
the information to the protocol-driver [or internal qed consumer].
Since we have several flavors of ll2 employeed by the driver,
each handler needs to do an if-else to determine the right functionality
to use based on the connection type.

In order to make things more scalable [given that we're going to add
additional types of ll2 flavors] move the infrastrucutre into using
a callback-based approach - the callbacks would be provided as part
of the connection's initialization parameters.

Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Michal Kalderon 2017-06-09 17:13:22 +03:00 коммит произвёл David S. Miller
Родитель 58de289807
Коммит 0518c12f1f
10 изменённых файлов: 384 добавлений и 557 удалений
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6
drivers/infiniband/hw/qedr/main.c
Просмотреть файл

@ -886,9 +886,9 @@ static void qedr_mac_address_change(struct qedr_dev *dev)
memcpy(&sgid->raw[8], guid, sizeof(guid));
/* Update LL2 */
rc = dev->ops->roce_ll2_set_mac_filter(dev->cdev,
dev->gsi_ll2_mac_address,
dev->ndev->dev_addr);
rc = dev->ops->ll2_set_mac_filter(dev->cdev,
dev->gsi_ll2_mac_address,
dev->ndev->dev_addr);
ether_addr_copy(dev->gsi_ll2_mac_address, dev->ndev->dev_addr);

2
drivers/infiniband/hw/qedr/qedr.h
Просмотреть файл

@ -150,6 +150,8 @@ struct qedr_dev {
u32 dp_module;
u8 dp_level;
u8 num_hwfns;
u8 gsi_ll2_handle;
uint wq_multiplier;
u8 gsi_ll2_mac_address[ETH_ALEN];
int gsi_qp_created;

238
drivers/infiniband/hw/qedr/qedr_cm.c
Просмотреть файл

@ -64,9 +64,14 @@ void qedr_store_gsi_qp_cq(struct qedr_dev *dev, struct qedr_qp *qp,
dev->gsi_qp = qp;
}
void qedr_ll2_tx_cb(void *_qdev, struct qed_roce_ll2_packet *pkt)
void qedr_ll2_complete_tx_packet(void *cxt,
u8 connection_handle,
void *cookie,
dma_addr_t first_frag_addr,
bool b_last_fragment, bool b_last_packet)
{
struct qedr_dev *dev = (struct qedr_dev *)_qdev;
struct qedr_dev *dev = (struct qedr_dev *)cxt;
struct qed_roce_ll2_packet *pkt = cookie;
struct qedr_cq *cq = dev->gsi_sqcq;
struct qedr_qp *qp = dev->gsi_qp;
unsigned long flags;
@ -88,20 +93,26 @@ void qedr_ll2_tx_cb(void *_qdev, struct qed_roce_ll2_packet *pkt)
(*cq->ibcq.comp_handler) (&cq->ibcq, cq->ibcq.cq_context);
}
void qedr_ll2_rx_cb(void *_dev, struct qed_roce_ll2_packet *pkt,
struct qed_roce_ll2_rx_params *params)
void qedr_ll2_complete_rx_packet(void *cxt,
struct qed_ll2_comp_rx_data *data)
{
struct qedr_dev *dev = (struct qedr_dev *)_dev;
struct qedr_dev *dev = (struct qedr_dev *)cxt;
struct qedr_cq *cq = dev->gsi_rqcq;
struct qedr_qp *qp = dev->gsi_qp;
unsigned long flags;
spin_lock_irqsave(&qp->q_lock, flags);
qp->rqe_wr_id[qp->rq.gsi_cons].rc = params->rc;
qp->rqe_wr_id[qp->rq.gsi_cons].vlan_id = params->vlan_id;
qp->rqe_wr_id[qp->rq.gsi_cons].sg_list[0].length = pkt->payload[0].len;
ether_addr_copy(qp->rqe_wr_id[qp->rq.gsi_cons].smac, params->smac);
qp->rqe_wr_id[qp->rq.gsi_cons].rc = data->u.data_length_error ?
-EINVAL : 0;
qp->rqe_wr_id[qp->rq.gsi_cons].vlan_id = data->vlan;
/* note: length stands for data length i.e. GRH is excluded */
qp->rqe_wr_id[qp->rq.gsi_cons].sg_list[0].length =
data->length.data_length;
*((u32 *)&qp->rqe_wr_id[qp->rq.gsi_cons].smac[0]) =
ntohl(data->opaque_data_0);
*((u16 *)&qp->rqe_wr_id[qp->rq.gsi_cons].smac[4]) =
ntohs((u16)data->opaque_data_1);
qedr_inc_sw_gsi_cons(&qp->rq);
@ -111,6 +122,14 @@ void qedr_ll2_rx_cb(void *_dev, struct qed_roce_ll2_packet *pkt,
(*cq->ibcq.comp_handler) (&cq->ibcq, cq->ibcq.cq_context);
}
void qedr_ll2_release_rx_packet(void *cxt,
u8 connection_handle,
void *cookie,
dma_addr_t rx_buf_addr, bool b_last_packet)
{
/* Do nothing... */
}
static void qedr_destroy_gsi_cq(struct qedr_dev *dev,
struct ib_qp_init_attr *attrs)
{
@ -159,27 +178,159 @@ static inline int qedr_check_gsi_qp_attrs(struct qedr_dev *dev,
return 0;
}
static int qedr_ll2_post_tx(struct qedr_dev *dev,
struct qed_roce_ll2_packet *pkt)
{
enum qed_ll2_roce_flavor_type roce_flavor;
struct qed_ll2_tx_pkt_info ll2_tx_pkt;
int rc;
int i;
memset(&ll2_tx_pkt, 0, sizeof(ll2_tx_pkt));
roce_flavor = (pkt->roce_mode == ROCE_V1) ?
QED_LL2_ROCE : QED_LL2_RROCE;
if (pkt->roce_mode == ROCE_V2_IPV4)
ll2_tx_pkt.enable_ip_cksum = 1;
ll2_tx_pkt.num_of_bds = 1 /* hdr */ + pkt->n_seg;
ll2_tx_pkt.vlan = 0;
ll2_tx_pkt.tx_dest = pkt->tx_dest;
ll2_tx_pkt.qed_roce_flavor = roce_flavor;
ll2_tx_pkt.first_frag = pkt->header.baddr;
ll2_tx_pkt.first_frag_len = pkt->header.len;
ll2_tx_pkt.cookie = pkt;
/* tx header */
rc = dev->ops->ll2_prepare_tx_packet(dev->rdma_ctx,
dev->gsi_ll2_handle,
&ll2_tx_pkt, 1);
if (rc) {
/* TX failed while posting header - release resources */
dma_free_coherent(&dev->pdev->dev, pkt->header.len,
pkt->header.vaddr, pkt->header.baddr);
kfree(pkt);
DP_ERR(dev, "roce ll2 tx: header failed (rc=%d)\n", rc);
return rc;
}
/* tx payload */
for (i = 0; i < pkt->n_seg; i++) {
rc = dev->ops->ll2_set_fragment_of_tx_packet(
dev->rdma_ctx,
dev->gsi_ll2_handle,
pkt->payload[i].baddr,
pkt->payload[i].len);
if (rc) {
/* if failed not much to do here, partial packet has
* been posted we can't free memory, will need to wait
* for completion
*/
DP_ERR(dev, "ll2 tx: payload failed (rc=%d)\n", rc);
return rc;
}
}
return 0;
}
int qedr_ll2_stop(struct qedr_dev *dev)
{
int rc;
if (dev->gsi_ll2_handle == QED_LL2_UNUSED_HANDLE)
return 0;
/* remove LL2 MAC address filter */
rc = dev->ops->ll2_set_mac_filter(dev->cdev,
dev->gsi_ll2_mac_address, NULL);
rc = dev->ops->ll2_terminate_connection(dev->rdma_ctx,
dev->gsi_ll2_handle);
if (rc)
DP_ERR(dev, "Failed to terminate LL2 connection (rc=%d)\n", rc);
dev->ops->ll2_release_connection(dev->rdma_ctx, dev->gsi_ll2_handle);
dev->gsi_ll2_handle = QED_LL2_UNUSED_HANDLE;
return rc;
}
int qedr_ll2_start(struct qedr_dev *dev,
struct ib_qp_init_attr *attrs, struct qedr_qp *qp)
{
struct qed_ll2_acquire_data data;
struct qed_ll2_cbs cbs;
int rc;
/* configure and start LL2 */
cbs.rx_comp_cb = qedr_ll2_complete_rx_packet;
cbs.tx_comp_cb = qedr_ll2_complete_tx_packet;
cbs.rx_release_cb = qedr_ll2_release_rx_packet;
cbs.tx_release_cb = qedr_ll2_complete_tx_packet;
cbs.cookie = dev;
memset(&data, 0, sizeof(data));
data.input.conn_type = QED_LL2_TYPE_ROCE;
data.input.mtu = dev->ndev->mtu;
data.input.rx_num_desc = attrs->cap.max_recv_wr;
data.input.rx_drop_ttl0_flg = true;
data.input.rx_vlan_removal_en = false;
data.input.tx_num_desc = attrs->cap.max_send_wr;
data.input.tx_tc = 0;
data.input.tx_dest = QED_LL2_TX_DEST_NW;
data.input.ai_err_packet_too_big = QED_LL2_DROP_PACKET;
data.input.ai_err_no_buf = QED_LL2_DROP_PACKET;
data.input.gsi_enable = 1;
data.p_connection_handle = &dev->gsi_ll2_handle;
data.cbs = &cbs;
rc = dev->ops->ll2_acquire_connection(dev->rdma_ctx, &data);
if (rc) {
DP_ERR(dev,
"ll2 start: failed to acquire LL2 connection (rc=%d)\n",
rc);
return rc;
}
rc = dev->ops->ll2_establish_connection(dev->rdma_ctx,
dev->gsi_ll2_handle);
if (rc) {
DP_ERR(dev,
"ll2 start: failed to establish LL2 connection (rc=%d)\n",
rc);
goto err1;
}
rc = dev->ops->ll2_set_mac_filter(dev->cdev, NULL, dev->ndev->dev_addr);
if (rc)
goto err2;
return 0;
err2:
dev->ops->ll2_terminate_connection(dev->rdma_ctx, dev->gsi_ll2_handle);
err1:
dev->ops->ll2_release_connection(dev->rdma_ctx, dev->gsi_ll2_handle);
return rc;
}
struct ib_qp *qedr_create_gsi_qp(struct qedr_dev *dev,
struct ib_qp_init_attr *attrs,
struct qedr_qp *qp)
{
struct qed_roce_ll2_params ll2_params;
int rc;
rc = qedr_check_gsi_qp_attrs(dev, attrs);
if (rc)
return ERR_PTR(rc);
/* configure and start LL2 */
memset(&ll2_params, 0, sizeof(ll2_params));
ll2_params.max_tx_buffers = attrs->cap.max_send_wr;
ll2_params.max_rx_buffers = attrs->cap.max_recv_wr;
ll2_params.cbs.tx_cb = qedr_ll2_tx_cb;
ll2_params.cbs.rx_cb = qedr_ll2_rx_cb;
ll2_params.cb_cookie = (void *)dev;
ll2_params.mtu = dev->ndev->mtu;
ether_addr_copy(ll2_params.mac_address, dev->ndev->dev_addr);
rc = dev->ops->roce_ll2_start(dev->cdev, &ll2_params);
rc = qedr_ll2_start(dev, attrs, qp);
if (rc) {
DP_ERR(dev, "create gsi qp: failed on ll2 start. rc=%d\n", rc);
return ERR_PTR(rc);
@ -214,7 +365,7 @@ struct ib_qp *qedr_create_gsi_qp(struct qedr_dev *dev,
err:
kfree(qp->rqe_wr_id);
rc = dev->ops->roce_ll2_stop(dev->cdev);
rc = qedr_ll2_stop(dev);
if (rc)
DP_ERR(dev, "create gsi qp: failed destroy on create\n");
@ -223,15 +374,7 @@ err:
int qedr_destroy_gsi_qp(struct qedr_dev *dev)
{
int rc;
rc = dev->ops->roce_ll2_stop(dev->cdev);
if (rc)
DP_ERR(dev, "destroy gsi qp: failed (rc=%d)\n", rc);
else
DP_DEBUG(dev, QEDR_MSG_GSI, "destroy gsi qp: success\n");
return rc;
return qedr_ll2_stop(dev);
}
#define QEDR_MAX_UD_HEADER_SIZE (100)
@ -421,7 +564,6 @@ int qedr_gsi_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
{
struct qed_roce_ll2_packet *pkt = NULL;
struct qedr_qp *qp = get_qedr_qp(ibqp);
struct qed_roce_ll2_tx_params params;
struct qedr_dev *dev = qp->dev;
unsigned long flags;
int rc;
@ -449,8 +591,6 @@ int qedr_gsi_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
goto err;
}
memset(&params, 0, sizeof(params));
spin_lock_irqsave(&qp->q_lock, flags);
rc = qedr_gsi_build_packet(dev, qp, wr, &pkt);
@ -459,7 +599,8 @@ int qedr_gsi_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
goto err;
}
rc = dev->ops->roce_ll2_tx(dev->cdev, pkt, &params);
rc = qedr_ll2_post_tx(dev, pkt);
if (!rc) {
qp->wqe_wr_id[qp->sq.prod].wr_id = wr->wr_id;
qedr_inc_sw_prod(&qp->sq);
@ -467,17 +608,6 @@ int qedr_gsi_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
"gsi post send: opcode=%d, in_irq=%ld, irqs_disabled=%d, wr_id=%llx\n",
wr->opcode, in_irq(), irqs_disabled(), wr->wr_id);
} else {
if (rc == QED_ROCE_TX_HEAD_FAILURE) {
/* TX failed while posting header - release resources */
dma_free_coherent(&dev->pdev->dev, pkt->header.len,
pkt->header.vaddr, pkt->header.baddr);
kfree(pkt);
} else if (rc == QED_ROCE_TX_FRAG_FAILURE) {
/* NTD since TX failed while posting a fragment. We will
* release the resources on TX callback
*/
}
DP_ERR(dev, "gsi post send: failed to transmit (rc=%d)\n", rc);
rc = -EAGAIN;
*bad_wr = wr;
@ -504,10 +634,8 @@ int qedr_gsi_post_recv(struct ib_qp *ibqp, struct ib_recv_wr *wr,
{
struct qedr_dev *dev = get_qedr_dev(ibqp->device);
struct qedr_qp *qp = get_qedr_qp(ibqp);
struct qed_roce_ll2_buffer buf;
unsigned long flags;
int status = 0;
int rc;
int rc = 0;
if ((qp->state != QED_ROCE_QP_STATE_RTR) &&
(qp->state != QED_ROCE_QP_STATE_RTS)) {
@ -518,8 +646,6 @@ int qedr_gsi_post_recv(struct ib_qp *ibqp, struct ib_recv_wr *wr,
return -EINVAL;
}
memset(&buf, 0, sizeof(buf));
spin_lock_irqsave(&qp->q_lock, flags);
while (wr) {
@ -530,10 +656,12 @@ int qedr_gsi_post_recv(struct ib_qp *ibqp, struct ib_recv_wr *wr,
goto err;
}
buf.baddr = wr->sg_list[0].addr;
buf.len = wr->sg_list[0].length;
rc = dev->ops->roce_ll2_post_rx_buffer(dev->cdev, &buf, 0, 1);
rc = dev->ops->ll2_post_rx_buffer(dev->rdma_ctx,
dev->gsi_ll2_handle,
wr->sg_list[0].addr,
wr->sg_list[0].length,
0 /* cookie */,
1 /* notify_fw */);
if (rc) {
DP_ERR(dev,
"gsi post recv: failed to post rx buffer (rc=%d)\n",
@ -553,7 +681,7 @@ int qedr_gsi_post_recv(struct ib_qp *ibqp, struct ib_recv_wr *wr,
spin_unlock_irqrestore(&qp->q_lock, flags);
return status;
return rc;
err:
spin_unlock_irqrestore(&qp->q_lock, flags);
*bad_wr = wr;

1
drivers/net/ethernet/qlogic/qed/qed.h
Просмотреть файл

@ -552,7 +552,6 @@ struct qed_hwfn {
#endif
struct z_stream_s *stream;
struct qed_roce_ll2_info *ll2;
};
struct pci_params {

197
drivers/net/ethernet/qlogic/qed/qed_ll2.c
Просмотреть файл

@ -89,13 +89,14 @@ struct qed_ll2_buffer {
dma_addr_t phys_addr;
};
static void qed_ll2b_complete_tx_packet(struct qed_hwfn *p_hwfn,
static void qed_ll2b_complete_tx_packet(void *cxt,
u8 connection_handle,
void *cookie,
dma_addr_t first_frag_addr,
bool b_last_fragment,
bool b_last_packet)
{
struct qed_hwfn *p_hwfn = cxt;
struct qed_dev *cdev = p_hwfn->cdev;
struct sk_buff *skb = cookie;
@ -164,9 +165,9 @@ static void qed_ll2_kill_buffers(struct qed_dev *cdev)
qed_ll2_dealloc_buffer(cdev, buffer);
}
static void qed_ll2b_complete_rx_packet(struct qed_hwfn *p_hwfn,
struct qed_ll2_comp_rx_data *data)
void qed_ll2b_complete_rx_packet(void *cxt, struct qed_ll2_comp_rx_data *data)
{
struct qed_hwfn *p_hwfn = cxt;
struct qed_ll2_buffer *buffer = data->cookie;
struct qed_dev *cdev = p_hwfn->cdev;
dma_addr_t new_phys_addr;
@ -327,21 +328,12 @@ static void qed_ll2_txq_flush(struct qed_hwfn *p_hwfn, u8 connection_handle)
b_last_frag =
p_tx->cur_completing_bd_idx == p_pkt->bd_used;
tx_frag = p_pkt->bds_set[0].tx_frag;
if (p_ll2_conn->input.gsi_enable)
qed_ll2b_release_tx_gsi_packet(p_hwfn,
p_ll2_conn->
my_id,
p_pkt->cookie,
tx_frag,
b_last_frag,
b_last_packet);
else
qed_ll2b_complete_tx_packet(p_hwfn,
p_ll2_conn->my_id,
p_pkt->cookie,
tx_frag,
b_last_frag,
b_last_packet);
p_ll2_conn->cbs.tx_release_cb(p_ll2_conn->cbs.cookie,
p_ll2_conn->my_id,
p_pkt->cookie,
tx_frag,
b_last_frag,
b_last_packet);
}
}
}
@ -354,7 +346,6 @@ static int qed_ll2_txq_completion(struct qed_hwfn *p_hwfn, void *p_cookie)
struct qed_ll2_tx_packet *p_pkt;
bool b_last_frag = false;
unsigned long flags;
dma_addr_t tx_frag;
int rc = -EINVAL;
spin_lock_irqsave(&p_tx->lock, flags);
@ -395,19 +386,13 @@ static int qed_ll2_txq_completion(struct qed_hwfn *p_hwfn, void *p_cookie)
list_add_tail(&p_pkt->list_entry, &p_tx->free_descq);
spin_unlock_irqrestore(&p_tx->lock, flags);
tx_frag = p_pkt->bds_set[0].tx_frag;
if (p_ll2_conn->input.gsi_enable)
qed_ll2b_complete_tx_gsi_packet(p_hwfn,
p_ll2_conn->my_id,
p_pkt->cookie,
tx_frag,
b_last_frag, !num_bds);
else
qed_ll2b_complete_tx_packet(p_hwfn,
p_ll2_conn->my_id,
p_pkt->cookie,
tx_frag,
b_last_frag, !num_bds);
p_ll2_conn->cbs.tx_comp_cb(p_ll2_conn->cbs.cookie,
p_ll2_conn->my_id,
p_pkt->cookie,
p_pkt->bds_set[0].tx_frag,
b_last_frag, !num_bds);
spin_lock_irqsave(&p_tx->lock, flags);
}
@ -418,52 +403,16 @@ out:
return rc;
}
static int
qed_ll2_rxq_completion_gsi(struct qed_hwfn *p_hwfn,
struct qed_ll2_info *p_ll2_info,
union core_rx_cqe_union *p_cqe,
unsigned long lock_flags, bool b_last_cqe)
static void qed_ll2_rxq_parse_gsi(struct qed_hwfn *p_hwfn,
union core_rx_cqe_union *p_cqe,
struct qed_ll2_comp_rx_data *data)
{
struct qed_ll2_rx_queue *p_rx = &p_ll2_info->rx_queue;
struct qed_ll2_rx_packet *p_pkt = NULL;
u16 packet_length, parse_flags, vlan;
u32 src_mac_addrhi;
u16 src_mac_addrlo;
if (!list_empty(&p_rx->active_descq))
p_pkt = list_first_entry(&p_rx->active_descq,
struct qed_ll2_rx_packet, list_entry);
if (!p_pkt) {
DP_NOTICE(p_hwfn,
"GSI Rx completion but active_descq is empty\n");
return -EIO;
}
list_del(&p_pkt->list_entry);
parse_flags = le16_to_cpu(p_cqe->rx_cqe_gsi.parse_flags.flags);
packet_length = le16_to_cpu(p_cqe->rx_cqe_gsi.data_length);
vlan = le16_to_cpu(p_cqe->rx_cqe_gsi.vlan);
src_mac_addrhi = le32_to_cpu(p_cqe->rx_cqe_gsi.src_mac_addrhi);
src_mac_addrlo = le16_to_cpu(p_cqe->rx_cqe_gsi.src_mac_addrlo);
if (qed_chain_consume(&p_rx->rxq_chain) != p_pkt->rxq_bd)
DP_NOTICE(p_hwfn,
"Mismatch between active_descq and the LL2 Rx chain\n");
list_add_tail(&p_pkt->list_entry, &p_rx->free_descq);
spin_unlock_irqrestore(&p_rx->lock, lock_flags);
qed_ll2b_complete_rx_gsi_packet(p_hwfn,
p_ll2_info->my_id,
p_pkt->cookie,
p_pkt->rx_buf_addr,
packet_length,
p_cqe->rx_cqe_gsi.data_length_error,
parse_flags,
vlan,
src_mac_addrhi,
src_mac_addrlo, b_last_cqe);
spin_lock_irqsave(&p_rx->lock, lock_flags);
return 0;
data->parse_flags = le16_to_cpu(p_cqe->rx_cqe_gsi.parse_flags.flags);
data->length.data_length = le16_to_cpu(p_cqe->rx_cqe_gsi.data_length);
data->vlan = le16_to_cpu(p_cqe->rx_cqe_gsi.vlan);
data->opaque_data_0 = le32_to_cpu(p_cqe->rx_cqe_gsi.src_mac_addrhi);
data->opaque_data_1 = le16_to_cpu(p_cqe->rx_cqe_gsi.src_mac_addrlo);
data->u.data_length_error = p_cqe->rx_cqe_gsi.data_length_error;
}
static void qed_ll2_rxq_parse_reg(struct qed_hwfn *p_hwfn,
@ -501,7 +450,10 @@ qed_ll2_rxq_handle_completion(struct qed_hwfn *p_hwfn,
}
list_del(&p_pkt->list_entry);
qed_ll2_rxq_parse_reg(p_hwfn, p_cqe, &data);
if (p_cqe->rx_cqe_sp.type == CORE_RX_CQE_TYPE_REGULAR)
qed_ll2_rxq_parse_reg(p_hwfn, p_cqe, &data);
else
qed_ll2_rxq_parse_gsi(p_hwfn, p_cqe, &data);
if (qed_chain_consume(&p_rx->rxq_chain) != p_pkt->rxq_bd)
DP_NOTICE(p_hwfn,
"Mismatch between active_descq and the LL2 Rx chain\n");
@ -514,7 +466,8 @@ qed_ll2_rxq_handle_completion(struct qed_hwfn *p_hwfn,
data.b_last_packet = b_last_cqe;
spin_unlock_irqrestore(&p_rx->lock, *p_lock_flags);
qed_ll2b_complete_rx_packet(p_hwfn, &data);
p_ll2_conn->cbs.rx_comp_cb(p_ll2_conn->cbs.cookie, &data);
spin_lock_irqsave(&p_rx->lock, *p_lock_flags);
return 0;
@ -552,9 +505,6 @@ static int qed_ll2_rxq_completion(struct qed_hwfn *p_hwfn, void *cookie)
rc = -EINVAL;
break;
case CORE_RX_CQE_TYPE_GSI_OFFLOAD:
rc = qed_ll2_rxq_completion_gsi(p_hwfn, p_ll2_conn,
cqe, flags, b_last_cqe);
break;
case CORE_RX_CQE_TYPE_REGULAR:
rc = qed_ll2_rxq_handle_completion(p_hwfn, p_ll2_conn,
cqe, &flags,
@ -1244,6 +1194,23 @@ out:
return rc;
}
static int
qed_ll2_set_cbs(struct qed_ll2_info *p_ll2_info, const struct qed_ll2_cbs *cbs)
{
if (!cbs || (!cbs->rx_comp_cb ||
!cbs->rx_release_cb ||
!cbs->tx_comp_cb || !cbs->tx_release_cb || !cbs->cookie))
return -EINVAL;
p_ll2_info->cbs.rx_comp_cb = cbs->rx_comp_cb;
p_ll2_info->cbs.rx_release_cb = cbs->rx_release_cb;
p_ll2_info->cbs.tx_comp_cb = cbs->tx_comp_cb;
p_ll2_info->cbs.tx_release_cb = cbs->tx_release_cb;
p_ll2_info->cbs.cookie = cbs->cookie;
return 0;
}
static enum core_error_handle
qed_ll2_get_error_choice(enum qed_ll2_error_handle err)
{
@ -1259,9 +1226,9 @@ qed_ll2_get_error_choice(enum qed_ll2_error_handle err)
}
}
int qed_ll2_acquire_connection(struct qed_hwfn *p_hwfn,
struct qed_ll2_acquire_data *data)
int qed_ll2_acquire_connection(void *cxt, struct qed_ll2_acquire_data *data)
{
struct qed_hwfn *p_hwfn = cxt;
qed_int_comp_cb_t comp_rx_cb, comp_tx_cb;
struct qed_ll2_info *p_ll2_info = NULL;
u8 i, *p_tx_max;
@ -1298,6 +1265,13 @@ int qed_ll2_acquire_connection(struct qed_hwfn *p_hwfn,
else
*p_tx_max = min_t(u8, *p_tx_max,
CORE_LL2_TX_MAX_BDS_PER_PACKET);
rc = qed_ll2_set_cbs(p_ll2_info, data->cbs);
if (rc) {
DP_NOTICE(p_hwfn, "Invalid callback functions\n");
goto q_allocate_fail;
}
rc = qed_ll2_acquire_connection_rx(p_hwfn, p_ll2_info);
if (rc)
goto q_allocate_fail;
@ -1377,8 +1351,10 @@ qed_ll2_establish_connection_ooo(struct qed_hwfn *p_hwfn,
qed_ooo_release_all_isles(p_hwfn, p_hwfn->p_ooo_info);
qed_ooo_submit_rx_buffers(p_hwfn, p_ll2_conn);
}
int qed_ll2_establish_connection(struct qed_hwfn *p_hwfn, u8 connection_handle)
int qed_ll2_establish_connection(void *cxt, u8 connection_handle)
{
struct qed_hwfn *p_hwfn = cxt;
struct qed_ll2_info *p_ll2_conn;
struct qed_ll2_rx_queue *p_rx;
struct qed_ll2_tx_queue *p_tx;
@ -1505,11 +1481,12 @@ static void qed_ll2_post_rx_buffer_notify_fw(struct qed_hwfn *p_hwfn,
DIRECT_REG_WR(p_rx->set_prod_addr, *((u32 *)&rx_prod));
}
int qed_ll2_post_rx_buffer(struct qed_hwfn *p_hwfn,
int qed_ll2_post_rx_buffer(void *cxt,
u8 connection_handle,
dma_addr_t addr,
u16 buf_len, void *cookie, u8 notify_fw)
{
struct qed_hwfn *p_hwfn = cxt;
struct core_rx_bd_with_buff_len *p_curb = NULL;
struct qed_ll2_rx_packet *p_curp = NULL;
struct qed_ll2_info *p_ll2_conn;
@ -1699,11 +1676,12 @@ static void qed_ll2_tx_packet_notify(struct qed_hwfn *p_hwfn,
p_ll2_conn->input.conn_type, db_msg.spq_prod);
}
int qed_ll2_prepare_tx_packet(struct qed_hwfn *p_hwfn,
int qed_ll2_prepare_tx_packet(void *cxt,
u8 connection_handle,
struct qed_ll2_tx_pkt_info *pkt,
bool notify_fw)
{
struct qed_hwfn *p_hwfn = cxt;
struct qed_ll2_tx_packet *p_curp = NULL;
struct qed_ll2_info *p_ll2_conn = NULL;
struct qed_ll2_tx_queue *p_tx;
@ -1750,11 +1728,12 @@ out:
return rc;
}
int qed_ll2_set_fragment_of_tx_packet(struct qed_hwfn *p_hwfn,
int qed_ll2_set_fragment_of_tx_packet(void *cxt,
u8 connection_handle,
dma_addr_t addr, u16 nbytes)
{
struct qed_ll2_tx_packet *p_cur_send_packet = NULL;
struct qed_hwfn *p_hwfn = cxt;
struct qed_ll2_info *p_ll2_conn = NULL;
u16 cur_send_frag_num = 0;
struct core_tx_bd *p_bd;
@ -1789,8 +1768,9 @@ int qed_ll2_set_fragment_of_tx_packet(struct qed_hwfn *p_hwfn,
return 0;
}
int qed_ll2_terminate_connection(struct qed_hwfn *p_hwfn, u8 connection_handle)
int qed_ll2_terminate_connection(void *cxt, u8 connection_handle)
{
struct qed_hwfn *p_hwfn = cxt;
struct qed_ll2_info *p_ll2_conn = NULL;
int rc = -EINVAL;
struct qed_ptt *p_ptt;
@ -1855,8 +1835,10 @@ static void qed_ll2_release_connection_ooo(struct qed_hwfn *p_hwfn,
kfree(p_buffer);
}
}
void qed_ll2_release_connection(struct qed_hwfn *p_hwfn, u8 connection_handle)
void qed_ll2_release_connection(void *cxt, u8 connection_handle)
{
struct qed_hwfn *p_hwfn = cxt;
struct qed_ll2_info *p_ll2_conn = NULL;
p_ll2_conn = qed_ll2_handle_sanity(p_hwfn, connection_handle);
@ -1989,9 +1971,10 @@ static void _qed_ll2_get_pstats(struct qed_hwfn *p_hwfn,
p_stats->sent_bcast_pkts = HILO_64_REGPAIR(pstats.sent_bcast_pkts);
}
int qed_ll2_get_stats(struct qed_hwfn *p_hwfn,
int qed_ll2_get_stats(void *cxt,
u8 connection_handle, struct qed_ll2_stats *p_stats)
{
struct qed_hwfn *p_hwfn = cxt;
struct qed_ll2_info *p_ll2_conn = NULL;
struct qed_ptt *p_ptt;
@ -2018,6 +2001,17 @@ int qed_ll2_get_stats(struct qed_hwfn *p_hwfn,
return 0;
}
static void qed_ll2b_release_rx_packet(void *cxt,
u8 connection_handle,
void *cookie,
dma_addr_t rx_buf_addr,
bool b_last_packet)
{
struct qed_hwfn *p_hwfn = cxt;
qed_ll2_dealloc_buffer(p_hwfn->cdev, cookie);
}
static void qed_ll2_register_cb_ops(struct qed_dev *cdev,
const struct qed_ll2_cb_ops *ops,
void *cookie)
@ -2026,11 +2020,18 @@ static void qed_ll2_register_cb_ops(struct qed_dev *cdev,
cdev->ll2->cb_cookie = cookie;
}
struct qed_ll2_cbs ll2_cbs = {
.rx_comp_cb = &qed_ll2b_complete_rx_packet,
.rx_release_cb = &qed_ll2b_release_rx_packet,
.tx_comp_cb = &qed_ll2b_complete_tx_packet,
.tx_release_cb = &qed_ll2b_complete_tx_packet,
};
static void qed_ll2_set_conn_data(struct qed_dev *cdev,
struct qed_ll2_acquire_data *data,
struct qed_ll2_params *params,
enum qed_ll2_conn_type conn_type,
u8 *handle, bool lb, u8 gsi_enable)
u8 *handle, bool lb)
{
memset(data, 0, sizeof(*data));
@ -2040,8 +2041,10 @@ static void qed_ll2_set_conn_data(struct qed_dev *cdev,
data->input.rx_drop_ttl0_flg = params->drop_ttl0_packets;
data->input.rx_vlan_removal_en = params->rx_vlan_stripping;
data->input.tx_num_desc = QED_LL2_TX_SIZE;
data->input.gsi_enable = gsi_enable;
data->p_connection_handle = handle;
data->cbs = &ll2_cbs;
ll2_cbs.cookie = QED_LEADING_HWFN(cdev);
if (lb) {
data->input.tx_tc = OOO_LB_TC;
data->input.tx_dest = QED_LL2_TX_DEST_LB;
@ -2060,7 +2063,7 @@ static int qed_ll2_start_ooo(struct qed_dev *cdev,
int rc;
qed_ll2_set_conn_data(cdev, &data, params,
QED_LL2_TYPE_ISCSI_OOO, handle, true, 0);
QED_LL2_TYPE_ISCSI_OOO, handle, true);
rc = qed_ll2_acquire_connection(hwfn, &data);
if (rc) {
@ -2090,7 +2093,7 @@ static int qed_ll2_start(struct qed_dev *cdev, struct qed_ll2_params *params)
struct qed_ll2_acquire_data data;
struct qed_ptt *p_ptt;
int rc, i;
u8 gsi_enable = 1;
/* Initialize LL2 locks & lists */
INIT_LIST_HEAD(&cdev->ll2->list);
@ -2122,11 +2125,9 @@ static int qed_ll2_start(struct qed_dev *cdev, struct qed_ll2_params *params)
switch (QED_LEADING_HWFN(cdev)->hw_info.personality) {
case QED_PCI_FCOE:
conn_type = QED_LL2_TYPE_FCOE;
gsi_enable = 0;
break;
case QED_PCI_ISCSI:
conn_type = QED_LL2_TYPE_ISCSI;
gsi_enable = 0;
break;
case QED_PCI_ETH_ROCE:
conn_type = QED_LL2_TYPE_ROCE;
@ -2136,7 +2137,7 @@ static int qed_ll2_start(struct qed_dev *cdev, struct qed_ll2_params *params)
}
qed_ll2_set_conn_data(cdev, &data, params, conn_type,
&cdev->ll2->handle, false, gsi_enable);
&cdev->ll2->handle, false);
rc = qed_ll2_acquire_connection(QED_LEADING_HWFN(cdev), &data);
if (rc) {

34
drivers/net/ethernet/qlogic/qed/qed_ll2.h
Просмотреть файл

@ -126,6 +126,7 @@ struct qed_ll2_info {
u8 tx_stats_en;
struct qed_ll2_rx_queue rx_queue;
struct qed_ll2_tx_queue tx_queue;
struct qed_ll2_cbs cbs;
};
/**
@ -134,30 +135,29 @@ struct qed_ll2_info {
* connecion handler as output parameter.
*
*
* @param p_hwfn
* @param cxt - pointer to the hw-function [opaque to some]
* @param data - describes connection parameters
* @return int
*/
int qed_ll2_acquire_connection(struct qed_hwfn *p_hwfn,
struct qed_ll2_acquire_data *data);
int qed_ll2_acquire_connection(void *cxt, struct qed_ll2_acquire_data *data);
/**
* @brief qed_ll2_establish_connection - start previously
* allocated LL2 queues pair
*
* @param p_hwfn
* @param cxt - pointer to the hw-function [opaque to some]
* @param p_ptt
* @param connection_handle LL2 connection's handle obtained from
* qed_ll2_require_connection
*
* @return 0 on success, failure otherwise
*/
int qed_ll2_establish_connection(struct qed_hwfn *p_hwfn, u8 connection_handle);
int qed_ll2_establish_connection(void *cxt, u8 connection_handle);
/**
* @brief qed_ll2_post_rx_buffers - submit buffers to LL2 Rx queue.
*
* @param p_hwfn
* @param cxt - pointer to the hw-function [opaque to some]
* @param connection_handle LL2 connection's handle obtained from
* qed_ll2_require_connection
* @param addr rx (physical address) buffers to submit
@ -166,7 +166,7 @@ int qed_ll2_establish_connection(struct qed_hwfn *p_hwfn, u8 connection_handle);
*
* @return 0 on success, failure otherwise
*/
int qed_ll2_post_rx_buffer(struct qed_hwfn *p_hwfn,
int qed_ll2_post_rx_buffer(void *cxt,
u8 connection_handle,
dma_addr_t addr,
u16 buf_len, void *cookie, u8 notify_fw);
@ -175,14 +175,14 @@ int qed_ll2_post_rx_buffer(struct qed_hwfn *p_hwfn,
* @brief qed_ll2_prepare_tx_packet - request for start Tx BD
* to prepare Tx packet submission to FW.
*
* @param p_hwfn
* @param cxt - pointer to the hw-function [opaque to some]
* @param connection_handle
* @param pkt - info regarding the tx packet
* @param notify_fw - issue doorbell to fw for this packet
*
* @return 0 on success, failure otherwise
*/
int qed_ll2_prepare_tx_packet(struct qed_hwfn *p_hwfn,
int qed_ll2_prepare_tx_packet(void *cxt,
u8 connection_handle,
struct qed_ll2_tx_pkt_info *pkt,
bool notify_fw);
@ -191,18 +191,18 @@ int qed_ll2_prepare_tx_packet(struct qed_hwfn *p_hwfn,
* @brief qed_ll2_release_connection - releases resources
* allocated for LL2 connection
*
* @param p_hwfn
* @param cxt - pointer to the hw-function [opaque to some]
* @param connection_handle LL2 connection's handle obtained from
* qed_ll2_require_connection
*/
void qed_ll2_release_connection(struct qed_hwfn *p_hwfn, u8 connection_handle);
void qed_ll2_release_connection(void *cxt, u8 connection_handle);
/**
* @brief qed_ll2_set_fragment_of_tx_packet - provides fragments to fill
* Tx BD of BDs requested by
* qed_ll2_prepare_tx_packet
*
* @param p_hwfn
* @param cxt - pointer to the hw-function [opaque to some]
* @param connection_handle LL2 connection's handle
* obtained from
* qed_ll2_require_connection
@ -211,7 +211,7 @@ void qed_ll2_release_connection(struct qed_hwfn *p_hwfn, u8 connection_handle);
*
* @return 0 on success, failure otherwise
*/
int qed_ll2_set_fragment_of_tx_packet(struct qed_hwfn *p_hwfn,
int qed_ll2_set_fragment_of_tx_packet(void *cxt,
u8 connection_handle,
dma_addr_t addr, u16 nbytes);
@ -219,27 +219,27 @@ int qed_ll2_set_fragment_of_tx_packet(struct qed_hwfn *p_hwfn,
* @brief qed_ll2_terminate_connection - stops Tx/Rx queues
*
*
* @param p_hwfn
* @param cxt - pointer to the hw-function [opaque to some]
* @param connection_handle LL2 connection's handle
* obtained from
* qed_ll2_require_connection
*
* @return 0 on success, failure otherwise
*/
int qed_ll2_terminate_connection(struct qed_hwfn *p_hwfn, u8 connection_handle);
int qed_ll2_terminate_connection(void *cxt, u8 connection_handle);
/**
* @brief qed_ll2_get_stats - get LL2 queue's statistics
*
*
* @param p_hwfn
* @param cxt - pointer to the hw-function [opaque to some]
* @param connection_handle LL2 connection's handle obtained from
* qed_ll2_require_connection
* @param p_stats
*
* @return 0 on success, failure otherwise
*/
int qed_ll2_get_stats(struct qed_hwfn *p_hwfn,
int qed_ll2_get_stats(void *cxt,
u8 connection_handle, struct qed_ll2_stats *p_stats);
/**

304
drivers/net/ethernet/qlogic/qed/qed_roce.c
Просмотреть файл

@ -35,7 +35,6 @@
#include <linux/delay.h>
#include <linux/dma-mapping.h>
#include <linux/errno.h>
#include <linux/etherdevice.h>
#include <linux/if_ether.h>
#include <linux/if_vlan.h>
#include <linux/io.h>
@ -65,6 +64,7 @@
#include "qed_sp.h"
#include "qed_roce.h"
#include "qed_ll2.h"
#include <linux/qed/qed_ll2_if.h>
static void qed_roce_free_real_icid(struct qed_hwfn *p_hwfn, u16 icid);
@ -2709,310 +2709,35 @@ static void qed_rdma_remove_user(void *rdma_cxt, u16 dpi)
spin_unlock_bh(&p_hwfn->p_rdma_info->lock);
}
void qed_ll2b_complete_tx_gsi_packet(struct qed_hwfn *p_hwfn,
u8 connection_handle,
void *cookie,
dma_addr_t first_frag_addr,
bool b_last_fragment, bool b_last_packet)
{
struct qed_roce_ll2_packet *packet = cookie;
struct qed_roce_ll2_info *roce_ll2 = p_hwfn->ll2;
roce_ll2->cbs.tx_cb(roce_ll2->cb_cookie, packet);
}
void qed_ll2b_release_tx_gsi_packet(struct qed_hwfn *p_hwfn,
u8 connection_handle,
void *cookie,
dma_addr_t first_frag_addr,
bool b_last_fragment, bool b_last_packet)
{
qed_ll2b_complete_tx_gsi_packet(p_hwfn, connection_handle,
cookie, first_frag_addr,
b_last_fragment, b_last_packet);
}
void qed_ll2b_complete_rx_gsi_packet(struct qed_hwfn *p_hwfn,
u8 connection_handle,
void *cookie,
dma_addr_t rx_buf_addr,
u16 data_length,
u8 data_length_error,
u16 parse_flags,
u16 vlan,
u32 src_mac_addr_hi,
u16 src_mac_addr_lo, bool b_last_packet)
{
struct qed_roce_ll2_info *roce_ll2 = p_hwfn->ll2;
struct qed_roce_ll2_rx_params params;
struct qed_dev *cdev = p_hwfn->cdev;
struct qed_roce_ll2_packet pkt;
DP_VERBOSE(cdev,
QED_MSG_LL2,
"roce ll2 rx complete: bus_addr=%p, len=%d, data_len_err=%d\n",
(void *)(uintptr_t)rx_buf_addr,
data_length, data_length_error);
memset(&pkt, 0, sizeof(pkt));
pkt.n_seg = 1;
pkt.payload[0].baddr = rx_buf_addr;
pkt.payload[0].len = data_length;
memset(&params, 0, sizeof(params));
params.vlan_id = vlan;
*((u32 *)&params.smac[0]) = ntohl(src_mac_addr_hi);
*((u16 *)&params.smac[4]) = ntohs(src_mac_addr_lo);
if (data_length_error) {
DP_ERR(cdev,
"roce ll2 rx complete: data length error %d, length=%d\n",
data_length_error, data_length);
params.rc = -EINVAL;
}
roce_ll2->cbs.rx_cb(roce_ll2->cb_cookie, &pkt, &params);
}
static int qed_roce_ll2_set_mac_filter(struct qed_dev *cdev,
u8 *old_mac_address,
u8 *new_mac_address)
{
struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
struct qed_hwfn *p_hwfn = QED_LEADING_HWFN(cdev);
struct qed_ptt *p_ptt;
int rc = 0;
if (!hwfn->ll2 || hwfn->ll2->handle == QED_LL2_UNUSED_HANDLE) {
DP_ERR(cdev,
"qed roce mac filter failed - roce_info/ll2 NULL\n");
return -EINVAL;
}
p_ptt = qed_ptt_acquire(QED_LEADING_HWFN(cdev));
p_ptt = qed_ptt_acquire(p_hwfn);
if (!p_ptt) {
DP_ERR(cdev,
"qed roce ll2 mac filter set: failed to acquire PTT\n");
return -EINVAL;
}
mutex_lock(&hwfn->ll2->lock);
if (old_mac_address)
qed_llh_remove_mac_filter(QED_LEADING_HWFN(cdev), p_ptt,
old_mac_address);
qed_llh_remove_mac_filter(p_hwfn, p_ptt, old_mac_address);
if (new_mac_address)
rc = qed_llh_add_mac_filter(QED_LEADING_HWFN(cdev), p_ptt,
new_mac_address);
mutex_unlock(&hwfn->ll2->lock);
rc = qed_llh_add_mac_filter(p_hwfn, p_ptt, new_mac_address);
qed_ptt_release(QED_LEADING_HWFN(cdev), p_ptt);
qed_ptt_release(p_hwfn, p_ptt);
if (rc)
DP_ERR(cdev,
"qed roce ll2 mac filter set: failed to add mac filter\n");
"qed roce ll2 mac filter set: failed to add MAC filter\n");
return rc;
}
static int qed_roce_ll2_start(struct qed_dev *cdev,
struct qed_roce_ll2_params *params)
{
struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
struct qed_roce_ll2_info *roce_ll2;
struct qed_ll2_acquire_data data;
int rc;
if (!params) {
DP_ERR(cdev, "qed roce ll2 start: failed due to NULL params\n");
return -EINVAL;
}
if (!params->cbs.tx_cb || !params->cbs.rx_cb) {
DP_ERR(cdev,
"qed roce ll2 start: failed due to NULL tx/rx. tx_cb=%p, rx_cb=%p\n",
params->cbs.tx_cb, params->cbs.rx_cb);
return -EINVAL;
}
if (!is_valid_ether_addr(params->mac_address)) {
DP_ERR(cdev,
"qed roce ll2 start: failed due to invalid Ethernet address %pM\n",
params->mac_address);
return -EINVAL;
}
/* Initialize */
roce_ll2 = kzalloc(sizeof(*roce_ll2), GFP_ATOMIC);
if (!roce_ll2) {
DP_ERR(cdev, "qed roce ll2 start: failed memory allocation\n");
return -ENOMEM;
}
roce_ll2->handle = QED_LL2_UNUSED_HANDLE;
roce_ll2->cbs = params->cbs;
roce_ll2->cb_cookie = params->cb_cookie;
mutex_init(&roce_ll2->lock);
memset(&data, 0, sizeof(data));
data.input.conn_type = QED_LL2_TYPE_ROCE;
data.input.mtu = params->mtu;
data.input.rx_num_desc = params->max_rx_buffers;
data.input.tx_num_desc = params->max_tx_buffers;
data.input.rx_drop_ttl0_flg = true;
data.input.rx_vlan_removal_en = false;
data.input.tx_dest = QED_LL2_TX_DEST_NW;
data.input.ai_err_packet_too_big = LL2_DROP_PACKET;
data.input.ai_err_no_buf = LL2_DROP_PACKET;
data.p_connection_handle = &roce_ll2->handle;
data.input.gsi_enable = true;
rc = qed_ll2_acquire_connection(QED_LEADING_HWFN(cdev), &data);
if (rc) {
DP_ERR(cdev,
"qed roce ll2 start: failed to acquire LL2 connection (rc=%d)\n",
rc);
goto err;
}
rc = qed_ll2_establish_connection(QED_LEADING_HWFN(cdev),
roce_ll2->handle);
if (rc) {
DP_ERR(cdev,
"qed roce ll2 start: failed to establish LL2 connection (rc=%d)\n",
rc);
goto err1;
}
hwfn->ll2 = roce_ll2;
rc = qed_roce_ll2_set_mac_filter(cdev, NULL, params->mac_address);
if (rc) {
hwfn->ll2 = NULL;
goto err2;
}
ether_addr_copy(roce_ll2->mac_address, params->mac_address);
return 0;
err2:
qed_ll2_terminate_connection(QED_LEADING_HWFN(cdev), roce_ll2->handle);
err1:
qed_ll2_release_connection(QED_LEADING_HWFN(cdev), roce_ll2->handle);
err:
kfree(roce_ll2);
return rc;
}
static int qed_roce_ll2_stop(struct qed_dev *cdev)
{
struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
struct qed_roce_ll2_info *roce_ll2 = hwfn->ll2;
int rc;
if (roce_ll2->handle == QED_LL2_UNUSED_HANDLE) {
DP_ERR(cdev, "qed roce ll2 stop: cannot stop an unused LL2\n");
return -EINVAL;
}
/* remove LL2 MAC address filter */
rc = qed_roce_ll2_set_mac_filter(cdev, roce_ll2->mac_address, NULL);
eth_zero_addr(roce_ll2->mac_address);
rc = qed_ll2_terminate_connection(QED_LEADING_HWFN(cdev),
roce_ll2->handle);
if (rc)
DP_ERR(cdev,
"qed roce ll2 stop: failed to terminate LL2 connection (rc=%d)\n",
rc);
qed_ll2_release_connection(QED_LEADING_HWFN(cdev), roce_ll2->handle);
roce_ll2->handle = QED_LL2_UNUSED_HANDLE;
kfree(roce_ll2);
return rc;
}
static int qed_roce_ll2_tx(struct qed_dev *cdev,
struct qed_roce_ll2_packet *pkt,
struct qed_roce_ll2_tx_params *params)
{
struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
struct qed_roce_ll2_info *roce_ll2 = hwfn->ll2;
enum qed_ll2_roce_flavor_type qed_roce_flavor;
struct qed_ll2_tx_pkt_info ll2_pkt;
u8 flags = 0;
int rc;
int i;
if (!pkt || !params) {
DP_ERR(cdev,
"roce ll2 tx: failed tx because one of the following is NULL - drv=%p, pkt=%p, params=%p\n",
cdev, pkt, params);
return -EINVAL;
}
qed_roce_flavor = (pkt->roce_mode == ROCE_V1) ? QED_LL2_ROCE
: QED_LL2_RROCE;
if (pkt->roce_mode == ROCE_V2_IPV4)
flags |= BIT(CORE_TX_BD_DATA_IP_CSUM_SHIFT);
/* Tx header */
memset(&ll2_pkt, 0, sizeof(ll2_pkt));
ll2_pkt.num_of_bds = 1 + pkt->n_seg;
ll2_pkt.bd_flags = flags;
ll2_pkt.tx_dest = QED_LL2_TX_DEST_NW;
ll2_pkt.qed_roce_flavor = qed_roce_flavor;
ll2_pkt.first_frag = pkt->header.baddr;
ll2_pkt.first_frag_len = pkt->header.len;
ll2_pkt.cookie = pkt;
rc = qed_ll2_prepare_tx_packet(QED_LEADING_HWFN(cdev),
roce_ll2->handle,
&ll2_pkt, 1);
if (rc) {
DP_ERR(cdev, "roce ll2 tx: header failed (rc=%d)\n", rc);
return QED_ROCE_TX_HEAD_FAILURE;
}
/* Tx payload */
for (i = 0; i < pkt->n_seg; i++) {
rc = qed_ll2_set_fragment_of_tx_packet(QED_LEADING_HWFN(cdev),
roce_ll2->handle,
pkt->payload[i].baddr,
pkt->payload[i].len);
if (rc) {
/* If failed not much to do here, partial packet has
* been posted * we can't free memory, will need to wait
* for completion
*/
DP_ERR(cdev,
"roce ll2 tx: payload failed (rc=%d)\n", rc);
return QED_ROCE_TX_FRAG_FAILURE;
}
}
return 0;
}
static int qed_roce_ll2_post_rx_buffer(struct qed_dev *cdev,
struct qed_roce_ll2_buffer *buf,
u64 cookie, u8 notify_fw)
{
return qed_ll2_post_rx_buffer(QED_LEADING_HWFN(cdev),
QED_LEADING_HWFN(cdev)->ll2->handle,
buf->baddr, buf->len,
(void *)(uintptr_t)cookie, notify_fw);
}
static int qed_roce_ll2_stats(struct qed_dev *cdev, struct qed_ll2_stats *stats)
{
struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
struct qed_roce_ll2_info *roce_ll2 = hwfn->ll2;
return qed_ll2_get_stats(QED_LEADING_HWFN(cdev),
roce_ll2->handle, stats);
}
static const struct qed_rdma_ops qed_rdma_ops_pass = {
.common = &qed_common_ops_pass,
.fill_dev_info = &qed_fill_rdma_dev_info,
@ -3040,12 +2765,15 @@ static const struct qed_rdma_ops qed_rdma_ops_pass = {
.rdma_free_tid = &qed_rdma_free_tid,
.rdma_register_tid = &qed_rdma_register_tid,
.rdma_deregister_tid = &qed_rdma_deregister_tid,
.roce_ll2_start = &qed_roce_ll2_start,
.roce_ll2_stop = &qed_roce_ll2_stop,
.roce_ll2_tx = &qed_roce_ll2_tx,
.roce_ll2_post_rx_buffer = &qed_roce_ll2_post_rx_buffer,
.roce_ll2_set_mac_filter = &qed_roce_ll2_set_mac_filter,
.roce_ll2_stats = &qed_roce_ll2_stats,
.ll2_acquire_connection = &qed_ll2_acquire_connection,
.ll2_establish_connection = &qed_ll2_establish_connection,
.ll2_terminate_connection = &qed_ll2_terminate_connection,
.ll2_release_connection = &qed_ll2_release_connection,
.ll2_post_rx_buffer = &qed_ll2_post_rx_buffer,
.ll2_prepare_tx_packet = &qed_ll2_prepare_tx_packet,
.ll2_set_fragment_of_tx_packet = &qed_ll2_set_fragment_of_tx_packet,
.ll2_set_mac_filter = &qed_roce_ll2_set_mac_filter,
.ll2_get_stats = &qed_ll2_get_stats,
};
const struct qed_rdma_ops *qed_get_rdma_ops(void)

43
drivers/net/ethernet/qlogic/qed/qed_roce.h
Просмотреть файл

@ -170,53 +170,10 @@ struct qed_rdma_qp {
void qed_rdma_dpm_bar(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt);
void qed_roce_async_event(struct qed_hwfn *p_hwfn,
u8 fw_event_code, union rdma_eqe_data *rdma_data);
void qed_ll2b_complete_tx_gsi_packet(struct qed_hwfn *p_hwfn,
u8 connection_handle,
void *cookie,
dma_addr_t first_frag_addr,
bool b_last_fragment, bool b_last_packet);
void qed_ll2b_release_tx_gsi_packet(struct qed_hwfn *p_hwfn,
u8 connection_handle,
void *cookie,
dma_addr_t first_frag_addr,
bool b_last_fragment, bool b_last_packet);
void qed_ll2b_complete_rx_gsi_packet(struct qed_hwfn *p_hwfn,
u8 connection_handle,
void *cookie,
dma_addr_t rx_buf_addr,
u16 data_length,
u8 data_length_error,
u16 parse_flags,
u16 vlan,
u32 src_mac_addr_hi,
u16 src_mac_addr_lo, bool b_last_packet);
#else
static inline void qed_rdma_dpm_bar(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt) {}
static inline void qed_roce_async_event(struct qed_hwfn *p_hwfn,
u8 fw_event_code,
union rdma_eqe_data *rdma_data) {}
static inline void qed_ll2b_complete_tx_gsi_packet(struct qed_hwfn *p_hwfn,
u8 connection_handle,
void *cookie,
dma_addr_t first_frag_addr,
bool b_last_fragment,
bool b_last_packet) {}
static inline void qed_ll2b_release_tx_gsi_packet(struct qed_hwfn *p_hwfn,
u8 connection_handle,
void *cookie,
dma_addr_t first_frag_addr,
bool b_last_fragment,
bool b_last_packet) {}
static inline void qed_ll2b_complete_rx_gsi_packet(struct qed_hwfn *p_hwfn,
u8 connection_handle,
void *cookie,
dma_addr_t rx_buf_addr,
u16 data_length,
u8 data_length_error,
u16 parse_flags,
u16 vlan,
u32 src_mac_addr_hi,
u16 src_mac_addr_lo,
bool b_last_packet) {}
#endif
#endif

36
include/linux/qed/qed_ll2_if.h
Просмотреть файл

@ -122,6 +122,40 @@ struct qed_ll2_comp_rx_data {
} u;
};
typedef
void (*qed_ll2_complete_rx_packet_cb)(void *cxt,
struct qed_ll2_comp_rx_data *data);
typedef
void (*qed_ll2_release_rx_packet_cb)(void *cxt,
u8 connection_handle,
void *cookie,
dma_addr_t rx_buf_addr,
bool b_last_packet);
typedef
void (*qed_ll2_complete_tx_packet_cb)(void *cxt,
u8 connection_handle,
void *cookie,
dma_addr_t first_frag_addr,
bool b_last_fragment,
bool b_last_packet);
typedef
void (*qed_ll2_release_tx_packet_cb)(void *cxt,
u8 connection_handle,
void *cookie,
dma_addr_t first_frag_addr,
bool b_last_fragment, bool b_last_packet);
struct qed_ll2_cbs {
qed_ll2_complete_rx_packet_cb rx_comp_cb;
qed_ll2_release_rx_packet_cb rx_release_cb;
qed_ll2_complete_tx_packet_cb tx_comp_cb;
qed_ll2_release_tx_packet_cb tx_release_cb;
void *cookie;
};
struct qed_ll2_acquire_data_inputs {
enum qed_ll2_conn_type conn_type;
u16 mtu;
@ -140,6 +174,8 @@ struct qed_ll2_acquire_data_inputs {
struct qed_ll2_acquire_data {
struct qed_ll2_acquire_data_inputs input;
const struct qed_ll2_cbs *cbs;
/* Output container for LL2 connection's handle */
u8 *p_connection_handle;
};

80
include/linux/qed/qed_roce_if.h
Просмотреть файл

@ -34,8 +34,6 @@
#include <linux/types.h>
#include <linux/delay.h>
#include <linux/list.h>
#include <linux/mutex.h>
#include <linux/pci.h>
#include <linux/slab.h>
#include <linux/qed/qed_if.h>
#include <linux/qed/qed_ll2_if.h>
@ -491,42 +489,6 @@ struct qed_roce_ll2_packet {
enum qed_roce_ll2_tx_dest tx_dest;
};
struct qed_roce_ll2_tx_params {
int reserved;
};
struct qed_roce_ll2_rx_params {
u16 vlan_id;
u8 smac[ETH_ALEN];
int rc;
};
struct qed_roce_ll2_cbs {
void (*tx_cb)(void *pdev, struct qed_roce_ll2_packet *pkt);
void (*rx_cb)(void *pdev, struct qed_roce_ll2_packet *pkt,
struct qed_roce_ll2_rx_params *params);
};
struct qed_roce_ll2_params {
u16 max_rx_buffers;
u16 max_tx_buffers;
u16 mtu;
u8 mac_address[ETH_ALEN];
struct qed_roce_ll2_cbs cbs;
void *cb_cookie;
};
struct qed_roce_ll2_info {
u8 handle;
struct qed_roce_ll2_cbs cbs;
u8 mac_address[ETH_ALEN];
void *cb_cookie;
/* Lock to protect ll2 */
struct mutex lock;
};
enum qed_rdma_type {
QED_RDMA_TYPE_ROCE,
};
@ -579,26 +541,40 @@ struct qed_rdma_ops {
int (*rdma_query_qp)(void *rdma_cxt, struct qed_rdma_qp *qp,
struct qed_rdma_query_qp_out_params *oparams);
int (*rdma_destroy_qp)(void *rdma_cxt, struct qed_rdma_qp *qp);
int
(*rdma_register_tid)(void *rdma_cxt,
struct qed_rdma_register_tid_in_params *iparams);
int (*rdma_deregister_tid)(void *rdma_cxt, u32 itid);
int (*rdma_alloc_tid)(void *rdma_cxt, u32 *itid);
void (*rdma_free_tid)(void *rdma_cxt, u32 itid);
int (*roce_ll2_start)(struct qed_dev *cdev,
struct qed_roce_ll2_params *params);
int (*roce_ll2_stop)(struct qed_dev *cdev);
int (*roce_ll2_tx)(struct qed_dev *cdev,
struct qed_roce_ll2_packet *packet,
struct qed_roce_ll2_tx_params *params);
int (*roce_ll2_post_rx_buffer)(struct qed_dev *cdev,
struct qed_roce_ll2_buffer *buf,
u64 cookie, u8 notify_fw);
int (*roce_ll2_set_mac_filter)(struct qed_dev *cdev,
u8 *old_mac_address,
u8 *new_mac_address);
int (*roce_ll2_stats)(struct qed_dev *cdev,
struct qed_ll2_stats *stats);
int (*ll2_acquire_connection)(void *rdma_cxt,
struct qed_ll2_acquire_data *data);
int (*ll2_establish_connection)(void *rdma_cxt, u8 connection_handle);
int (*ll2_terminate_connection)(void *rdma_cxt, u8 connection_handle);
void (*ll2_release_connection)(void *rdma_cxt, u8 connection_handle);
int (*ll2_prepare_tx_packet)(void *rdma_cxt,
u8 connection_handle,
struct qed_ll2_tx_pkt_info *pkt,
bool notify_fw);
int (*ll2_set_fragment_of_tx_packet)(void *rdma_cxt,
u8 connection_handle,
dma_addr_t addr,
u16 nbytes);
int (*ll2_post_rx_buffer)(void *rdma_cxt, u8 connection_handle,
dma_addr_t addr, u16 buf_len, void *cookie,
u8 notify_fw);
int (*ll2_get_stats)(void *rdma_cxt,
u8 connection_handle,
struct qed_ll2_stats *p_stats);
int (*ll2_set_mac_filter)(struct qed_dev *cdev,
u8 *old_mac_address, u8 *new_mac_address);
};
const struct qed_rdma_ops *qed_get_rdma_ops(void);