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Date: Mon, 12 Sep 2016 19:07:43 +0300
From: Ram Amrani <Ram.Amrani@...gic.com>
To: <dledford@...hat.com>, <davem@...emloft.net>
CC: <Yuval.Mintz@...gic.com>, <Ariel.Elior@...gic.com>,
<Michal.Kalderon@...gic.com>, <rajesh.borundia@...gic.com>,
<linux-rdma@...r.kernel.org>, <netdev@...r.kernel.org>,
Ram Amrani <Ram.Amrani@...gic.com>
Subject: [RFC 09/11] Add LL2 RoCE interface
Add light L2 interface for RoCE.
Signed-off-by: Rajesh Borundia <rajesh.borundia@...gic.com>
Signed-off-by: Ram Amrani <Ram.Amrani@...gic.com>
---
drivers/infiniband/hw/qedr/main.c | 34 +++-
drivers/infiniband/hw/qedr/qedr.h | 2 +-
drivers/net/ethernet/qlogic/qed/qed.h | 1 +
drivers/net/ethernet/qlogic/qed/qed_hsi.h | 3 +
drivers/net/ethernet/qlogic/qed/qed_ll2.c | 21 ++-
drivers/net/ethernet/qlogic/qed/qed_ll2.h | 7 +
drivers/net/ethernet/qlogic/qed/qed_roce.c | 241 +++++++++++++++++++++++++++++
drivers/net/ethernet/qlogic/qed/qed_roce.h | 1 +
include/linux/qed/qed_roce_if.h | 79 ++++++++++
9 files changed, 385 insertions(+), 4 deletions(-)
diff --git a/drivers/infiniband/hw/qedr/main.c b/drivers/infiniband/hw/qedr/main.c
index 42206ed..fb0b76c 100644
--- a/drivers/infiniband/hw/qedr/main.c
+++ b/drivers/infiniband/hw/qedr/main.c
@@ -727,6 +727,38 @@ static void qedr_shutdown(struct qedr_dev *dev)
qedr_remove(dev);
}
+static void qedr_mac_address_change(struct qedr_dev *dev)
+{
+ union ib_gid *sgid = &dev->sgid_tbl[0];
+ u8 guid[8], mac_addr[6];
+ int rc;
+
+ /* Update SGID */
+ ether_addr_copy(&mac_addr[0], dev->ndev->dev_addr);
+ guid[0] = mac_addr[0] ^ 2;
+ guid[1] = mac_addr[1];
+ guid[2] = mac_addr[2];
+ guid[3] = 0xff;
+ guid[4] = 0xfe;
+ guid[5] = mac_addr[3];
+ guid[6] = mac_addr[4];
+ guid[7] = mac_addr[5];
+ sgid->global.subnet_prefix = cpu_to_be64(0xfe80000000000000LL);
+ 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);
+
+ ether_addr_copy(dev->gsi_ll2_mac_address, dev->ndev->dev_addr);
+
+ qedr_ib_dispatch_event(dev, 1, IB_EVENT_GID_CHANGE);
+
+ if (rc)
+ DP_ERR(dev, "Error updating MAC filter\n");
+}
+
/* event handling via NIC driver ensures that all the NIC specific
* initialization done before RoCE driver notifies
* event to stack.
@@ -744,7 +776,7 @@ static void qedr_notify(struct qedr_dev *dev, enum qede_roce_event event)
qedr_shutdown(dev);
break;
case QEDE_CHANGE_ADDR:
- qedr_ib_dispatch_event(dev, 1, IB_EVENT_GID_CHANGE);
+ qedr_mac_address_change(dev);
break;
default:
pr_err("Event not supported\n");
diff --git a/drivers/infiniband/hw/qedr/qedr.h b/drivers/infiniband/hw/qedr/qedr.h
index bc218d2..7ae0180 100644
--- a/drivers/infiniband/hw/qedr/qedr.h
+++ b/drivers/infiniband/hw/qedr/qedr.h
@@ -146,7 +146,7 @@ struct qedr_dev {
u8 dp_level;
u8 num_hwfns;
uint wq_multiplier;
-
+ u8 gsi_ll2_mac_address[ETH_ALEN];
};
#define QEDR_MAX_SQ_PBL (0x8000)
diff --git a/drivers/net/ethernet/qlogic/qed/qed.h b/drivers/net/ethernet/qlogic/qed/qed.h
index 9640475..87a544f 100644
--- a/drivers/net/ethernet/qlogic/qed/qed.h
+++ b/drivers/net/ethernet/qlogic/qed/qed.h
@@ -426,6 +426,7 @@ struct qed_hwfn {
#endif
struct z_stream_s *stream;
+ struct qed_roce_ll2_info *ll2;
};
struct pci_params {
diff --git a/drivers/net/ethernet/qlogic/qed/qed_hsi.h b/drivers/net/ethernet/qlogic/qed/qed_hsi.h
index a67b355..2b4dfc6 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_hsi.h
+++ b/drivers/net/ethernet/qlogic/qed/qed_hsi.h
@@ -727,6 +727,9 @@ struct core_tx_bd_flags {
#define CORE_TX_BD_FLAGS_L4_PROTOCOL_SHIFT 6
#define CORE_TX_BD_FLAGS_L4_PSEUDO_CSUM_MODE_MASK 0x1
#define CORE_TX_BD_FLAGS_L4_PSEUDO_CSUM_MODE_SHIFT 7
+#define CORE_TX_BD_FLAGS_ROCE_FLAV_MASK 0x1
+#define CORE_TX_BD_FLAGS_ROCE_FLAV_SHIFT 12
+
};
struct core_tx_bd {
diff --git a/drivers/net/ethernet/qlogic/qed/qed_ll2.c b/drivers/net/ethernet/qlogic/qed/qed_ll2.c
index 1a96a2d..4ea6a07 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_ll2.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_ll2.c
@@ -301,7 +301,8 @@ static void qed_ll2_txq_flush(struct qed_hwfn *p_hwfn, u8 connection_handle)
qed_ll2b_complete_tx_packet(p_hwfn, p_ll2_conn->my_id,
p_pkt->cookie,
p_pkt->bds_set[0].tx_frag,
- b_last_frag, b_last_packet);
+ b_last_frag,
+ b_last_packet);
}
}
@@ -1025,6 +1026,7 @@ static void qed_ll2_prepare_tx_packet_set_bd(struct qed_hwfn *p_hwfn,
u16 vlan,
u8 bd_flags,
u16 l4_hdr_offset_w,
+ enum core_roce_flavor_type type,
dma_addr_t first_frag,
u16 first_frag_len)
{
@@ -1045,6 +1047,9 @@ static void qed_ll2_prepare_tx_packet_set_bd(struct qed_hwfn *p_hwfn,
DMA_REGPAIR_LE(start_bd->addr, first_frag);
start_bd->nbytes = cpu_to_le16(first_frag_len);
+ SET_FIELD(start_bd->bd_flags.as_bitfield, CORE_TX_BD_FLAGS_ROCE_FLAV,
+ type);
+
DP_VERBOSE(p_hwfn,
(NETIF_MSG_TX_QUEUED | QED_MSG_LL2),
"LL2 [q 0x%02x cid 0x%08x type 0x%08x] Tx Producer at [0x%04x] - set with a %04x bytes %02x BDs buffer at %08x:%08x\n",
@@ -1136,11 +1141,13 @@ int qed_ll2_prepare_tx_packet(struct qed_hwfn *p_hwfn,
u16 vlan,
u8 bd_flags,
u16 l4_hdr_offset_w,
+ enum qed_ll2_roce_flavor_type qed_roce_flavor,
dma_addr_t first_frag,
u16 first_frag_len, void *cookie, u8 notify_fw)
{
struct qed_ll2_tx_packet *p_curp = NULL;
struct qed_ll2_info *p_ll2_conn = NULL;
+ enum core_roce_flavor_type roce_flavor;
struct qed_ll2_tx_queue *p_tx;
struct qed_chain *p_tx_chain;
unsigned long flags;
@@ -1173,6 +1180,15 @@ int qed_ll2_prepare_tx_packet(struct qed_hwfn *p_hwfn,
goto out;
}
+ if (qed_roce_flavor == QED_LL2_ROCE) {
+ roce_flavor = CORE_ROCE;
+ } else if (qed_roce_flavor == QED_LL2_RROCE) {
+ roce_flavor = CORE_RROCE;
+ } else {
+ rc = -EINVAL;
+ goto out;
+ }
+
/* Prepare packet and BD, and perhaps send a doorbell to FW */
qed_ll2_prepare_tx_packet_set(p_hwfn, p_tx, p_curp,
num_of_bds, first_frag,
@@ -1180,6 +1196,7 @@ int qed_ll2_prepare_tx_packet(struct qed_hwfn *p_hwfn,
qed_ll2_prepare_tx_packet_set_bd(p_hwfn, p_ll2_conn, p_curp,
num_of_bds, CORE_TX_DEST_NW,
vlan, bd_flags, l4_hdr_offset_w,
+ roce_flavor,
first_frag, first_frag_len);
qed_ll2_tx_packet_notify(p_hwfn, p_ll2_conn);
@@ -1624,7 +1641,7 @@ static int qed_ll2_start_xmit(struct qed_dev *cdev, struct sk_buff *skb)
rc = qed_ll2_prepare_tx_packet(QED_LEADING_HWFN(cdev),
cdev->ll2->handle,
1 + skb_shinfo(skb)->nr_frags,
- vlan, flags, 0, mapping,
+ vlan, flags, 0, mapping, 0,
skb->len, skb, 1);
if (rc)
goto err;
diff --git a/drivers/net/ethernet/qlogic/qed/qed_ll2.h b/drivers/net/ethernet/qlogic/qed/qed_ll2.h
index a037c48..b3783fd 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_ll2.h
+++ b/drivers/net/ethernet/qlogic/qed/qed_ll2.h
@@ -24,6 +24,12 @@
#define QED_MAX_NUM_OF_LL2_CONNECTIONS (4)
+enum qed_ll2_roce_flavor_type {
+ QED_LL2_ROCE,
+ QED_LL2_RROCE,
+ MAX_QED_LL2_ROCE_FLAVOR_TYPE
+};
+
enum qed_ll2_conn_type {
QED_LL2_TYPE_RESERVED,
QED_LL2_TYPE_ISCSI,
@@ -199,6 +205,7 @@ int qed_ll2_prepare_tx_packet(struct qed_hwfn *p_hwfn,
u16 vlan,
u8 bd_flags,
u16 l4_hdr_offset_w,
+ enum qed_ll2_roce_flavor_type qed_roce_flavor,
dma_addr_t first_frag,
u16 first_frag_len, void *cookie, u8 notify_fw);
diff --git a/drivers/net/ethernet/qlogic/qed/qed_roce.c b/drivers/net/ethernet/qlogic/qed/qed_roce.c
index 04e33ee..27095f0 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_roce.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_roce.c
@@ -64,6 +64,7 @@
#include "qed_reg_addr.h"
#include "qed_sp.h"
#include "qed_roce.h"
+#include "qed_ll2.h"
void qed_async_roce_event(struct qed_hwfn *p_hwfn,
struct event_ring_entry *p_eqe)
@@ -2632,6 +2633,240 @@ void qed_rdma_remove_user(void *rdma_cxt, u16 dpi)
spin_unlock_bh(&p_hwfn->p_rdma_info->lock);
}
+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_ptt *p_ptt;
+ int rc = 0;
+
+ if (!hwfn->ll2 || hwfn->ll2->handle == QED_LL2_UNUSED_HANDLE) {
+ DP_ERR(cdev,
+ "QED RoCE set MAC filter failed - roce_info/ll2 NULL\n");
+ return -EINVAL;
+ }
+
+ p_ptt = qed_ptt_acquire(QED_LEADING_HWFN(cdev));
+ 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);
+ if (new_mac_address)
+ rc = qed_llh_add_mac_filter(QED_LEADING_HWFN(cdev), p_ptt,
+ new_mac_address);
+ mutex_unlock(&hwfn->ll2->lock);
+
+ qed_ptt_release(QED_LEADING_HWFN(cdev), p_ptt);
+
+ if (rc)
+ DP_ERR(cdev,
+ "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_info ll2_params;
+ 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;
+ }
+ memset(roce_ll2, 0, sizeof(*roce_ll2));
+ 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(&ll2_params, 0, sizeof(ll2_params));
+ ll2_params.conn_type = QED_LL2_TYPE_ROCE;
+ ll2_params.mtu = params->mtu;
+ ll2_params.rx_drop_ttl0_flg = true;
+ ll2_params.rx_vlan_removal_en = false;
+ ll2_params.tx_dest = CORE_TX_DEST_NW;
+ ll2_params.ai_err_packet_too_big = LL2_DROP_PACKET;
+ ll2_params.ai_err_no_buf = LL2_DROP_PACKET;
+
+ rc = qed_ll2_acquire_connection(QED_LEADING_HWFN(cdev), &ll2_params,
+ params->max_rx_buffers,
+ params->max_tx_buffers,
+ &roce_ll2->handle);
+ 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 (!cdev) {
+ DP_ERR(cdev, "qed roce ll2 stop: invalid cdev\n");
+ return -EINVAL;
+ }
+
+ 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;
+ u8 flags = 0;
+ int rc;
+ int i;
+
+ if (!cdev || !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_FLAGS_IP_CSUM_SHIFT);
+
+ /* Tx header */
+ rc = qed_ll2_prepare_tx_packet(QED_LEADING_HWFN(cdev), roce_ll2->handle,
+ 1 + pkt->n_seg, 0, flags, 0,
+ qed_roce_flavor, pkt->header.baddr,
+ pkt->header.len, 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,
@@ -2659,6 +2894,12 @@ 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,
};
const struct qed_rdma_ops *qed_get_rdma_ops()
diff --git a/drivers/net/ethernet/qlogic/qed/qed_roce.h b/drivers/net/ethernet/qlogic/qed/qed_roce.h
index 71b37fc..f688a47 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_roce.h
+++ b/drivers/net/ethernet/qlogic/qed/qed_roce.h
@@ -42,6 +42,7 @@
#include "qed.h"
#include "qed_dev_api.h"
#include "qed_hsi.h"
+#include "qed_ll2.h"
#define QED_RDMA_MAX_FMR (RDMA_MAX_TIDS)
#define QED_RDMA_MAX_P_KEY (1)
diff --git a/include/linux/qed/qed_roce_if.h b/include/linux/qed/qed_roce_if.h
index 0b6df6e..53047d3 100644
--- a/include/linux/qed/qed_roce_if.h
+++ b/include/linux/qed/qed_roce_if.h
@@ -39,6 +39,16 @@
#include <linux/slab.h>
#include <linux/qed/qed_if.h>
#include <linux/qed/qed_ll2_if.h>
+#include <linux/qed/rdma_common.h>
+
+enum qed_roce_ll2_tx_dest {
+ /* Light L2 TX Destination to the Network */
+ QED_ROCE_LL2_TX_DEST_NW,
+
+ /* Light L2 TX Destination to the Loopback */
+ QED_ROCE_LL2_TX_DEST_LB,
+ QED_ROCE_LL2_TX_DEST_MAX
+};
#define QED_RDMA_MAX_CNQ_SIZE (0xFFFF)
@@ -461,6 +471,61 @@ struct qed_rdma_counters_out_params {
#define QED_ROCE_TX_HEAD_FAILURE (1)
#define QED_ROCE_TX_FRAG_FAILURE (2)
+struct qed_roce_ll2_header {
+ void *vaddr;
+ dma_addr_t baddr;
+ size_t len;
+};
+
+struct qed_roce_ll2_buffer {
+ dma_addr_t baddr;
+ size_t len;
+};
+
+struct qed_roce_ll2_packet {
+ struct qed_roce_ll2_header header;
+ int n_seg;
+ struct qed_roce_ll2_buffer payload[RDMA_MAX_SGE_PER_SQ_WQE];
+ int roce_mode;
+ 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,
};
@@ -518,6 +583,20 @@ struct qed_rdma_ops {
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);
};
const struct qed_rdma_ops *qed_get_rdma_ops(void);
--
1.8.3.1
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