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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 committed by David S. Miller
parent 58de289807
commit 0518c12f1f
10 changed files with 384 additions and 557 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/infiniband/hw/qedr/main.c
View File

@ -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
View File

@ -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
View File

@ -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 @@ struct ib_qp *qedr_create_gsi_qp(struct qedr_dev *dev,
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
View File

@ -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
View File

@ -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 @@ static int qed_ll2_txq_completion(struct qed_hwfn *p_hwfn, void *p_cookie)
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 @@ qed_ll2_acquire_connection_ooo(struct qed_hwfn *p_hwfn,
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 @@ int qed_ll2_prepare_tx_packet(struct qed_hwfn *p_hwfn,
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
View File

@ -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
View File

@ -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
View File

@ -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
View File

@ -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
View File

@ -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);