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path: root/drivers/infiniband/hw/mlx4/mad.c
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Diffstat (limited to 'drivers/infiniband/hw/mlx4/mad.c')
-rw-r--r--drivers/infiniband/hw/mlx4/mad.c908
1 files changed, 627 insertions, 281 deletions
diff --git a/drivers/infiniband/hw/mlx4/mad.c b/drivers/infiniband/hw/mlx4/mad.c
index 4d599cedbb0b..91c714f72099 100644
--- a/drivers/infiniband/hw/mlx4/mad.c
+++ b/drivers/infiniband/hw/mlx4/mad.c
@@ -39,7 +39,10 @@
#include <linux/mlx4/cmd.h>
#include <linux/gfp.h>
#include <rdma/ib_pma.h>
+#include <linux/ip.h>
+#include <net/ipv6.h>
+#include <linux/mlx4/driver.h>
#include "mlx4_ib.h"
enum {
@@ -85,15 +88,15 @@ struct mlx4_rcv_tunnel_mad {
struct ib_mad mad;
} __packed;
-static void handle_client_rereg_event(struct mlx4_ib_dev *dev, u8 port_num);
-static void handle_lid_change_event(struct mlx4_ib_dev *dev, u8 port_num);
+static void handle_client_rereg_event(struct mlx4_ib_dev *dev, u32 port_num);
+static void handle_lid_change_event(struct mlx4_ib_dev *dev, u32 port_num);
static void __propagate_pkey_ev(struct mlx4_ib_dev *dev, int port_num,
int block, u32 change_bitmap);
__be64 mlx4_ib_gen_node_guid(void)
{
#define NODE_GUID_HI ((u64) (((u64)IB_OPENIB_OUI) << 40))
- return cpu_to_be64(NODE_GUID_HI | prandom_u32());
+ return cpu_to_be64(NODE_GUID_HI | get_random_u32());
}
__be64 mlx4_ib_get_new_demux_tid(struct mlx4_ib_demux_ctx *ctx)
@@ -103,8 +106,9 @@ __be64 mlx4_ib_get_new_demux_tid(struct mlx4_ib_demux_ctx *ctx)
}
int mlx4_MAD_IFC(struct mlx4_ib_dev *dev, int mad_ifc_flags,
- int port, struct ib_wc *in_wc, struct ib_grh *in_grh,
- void *in_mad, void *response_mad)
+ int port, const struct ib_wc *in_wc,
+ const struct ib_grh *in_grh,
+ const void *in_mad, void *response_mad)
{
struct mlx4_cmd_mailbox *inmailbox, *outmailbox;
void *inbox;
@@ -165,7 +169,7 @@ int mlx4_MAD_IFC(struct mlx4_ib_dev *dev, int mad_ifc_flags,
op_modifier |= 0x4;
- in_modifier |= in_wc->slid << 16;
+ in_modifier |= ib_lid_cpu16(in_wc->slid) << 16;
}
err = mlx4_cmd_box(dev->dev, inmailbox->dma, outmailbox->dma, in_modifier,
@@ -182,28 +186,29 @@ int mlx4_MAD_IFC(struct mlx4_ib_dev *dev, int mad_ifc_flags,
return err;
}
-static void update_sm_ah(struct mlx4_ib_dev *dev, u8 port_num, u16 lid, u8 sl)
+static void update_sm_ah(struct mlx4_ib_dev *dev, u32 port_num, u16 lid, u8 sl)
{
struct ib_ah *new_ah;
- struct ib_ah_attr ah_attr;
+ struct rdma_ah_attr ah_attr;
unsigned long flags;
if (!dev->send_agent[port_num - 1][0])
return;
memset(&ah_attr, 0, sizeof ah_attr);
- ah_attr.dlid = lid;
- ah_attr.sl = sl;
- ah_attr.port_num = port_num;
+ ah_attr.type = rdma_ah_find_type(&dev->ib_dev, port_num);
+ rdma_ah_set_dlid(&ah_attr, lid);
+ rdma_ah_set_sl(&ah_attr, sl);
+ rdma_ah_set_port_num(&ah_attr, port_num);
- new_ah = ib_create_ah(dev->send_agent[port_num - 1][0]->qp->pd,
- &ah_attr);
+ new_ah = rdma_create_ah(dev->send_agent[port_num - 1][0]->qp->pd,
+ &ah_attr, 0);
if (IS_ERR(new_ah))
return;
spin_lock_irqsave(&dev->sm_lock, flags);
if (dev->sm_ah[port_num - 1])
- ib_destroy_ah(dev->sm_ah[port_num - 1]);
+ rdma_destroy_ah(dev->sm_ah[port_num - 1], 0);
dev->sm_ah[port_num - 1] = new_ah;
spin_unlock_irqrestore(&dev->sm_lock, flags);
}
@@ -212,8 +217,8 @@ static void update_sm_ah(struct mlx4_ib_dev *dev, u8 port_num, u16 lid, u8 sl)
* Snoop SM MADs for port info, GUID info, and P_Key table sets, so we can
* synthesize LID change, Client-Rereg, GID change, and P_Key change events.
*/
-static void smp_snoop(struct ib_device *ibdev, u8 port_num, struct ib_mad *mad,
- u16 prev_lid)
+static void smp_snoop(struct ib_device *ibdev, u32 port_num,
+ const struct ib_mad *mad, u16 prev_lid)
{
struct ib_port_info *pinfo;
u16 lid;
@@ -228,6 +233,8 @@ static void smp_snoop(struct ib_device *ibdev, u8 port_num, struct ib_mad *mad,
mad->mad_hdr.method == IB_MGMT_METHOD_SET)
switch (mad->mad_hdr.attr_id) {
case IB_SMP_ATTR_PORT_INFO:
+ if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_PORT_MNG_CHG_EV)
+ return;
pinfo = (struct ib_port_info *) ((struct ib_smp *) mad)->data;
lid = be16_to_cpu(pinfo->lid);
@@ -243,6 +250,8 @@ static void smp_snoop(struct ib_device *ibdev, u8 port_num, struct ib_mad *mad,
break;
case IB_SMP_ATTR_PKEY_TABLE:
+ if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_PORT_MNG_CHG_EV)
+ return;
if (!mlx4_is_mfunc(dev->dev)) {
mlx4_ib_dispatch_event(dev, port_num,
IB_EVENT_PKEY_CHANGE);
@@ -265,7 +274,7 @@ static void smp_snoop(struct ib_device *ibdev, u8 port_num, struct ib_mad *mad,
be16_to_cpu(base[i]);
}
}
- pr_debug("PKEY Change event: port=%d, "
+ pr_debug("PKEY Change event: port=%u, "
"block=0x%x, change_bitmap=0x%x\n",
port_num, bn, pkey_change_bitmap);
@@ -279,6 +288,8 @@ static void smp_snoop(struct ib_device *ibdev, u8 port_num, struct ib_mad *mad,
break;
case IB_SMP_ATTR_GUID_INFO:
+ if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_PORT_MNG_CHG_EV)
+ return;
/* paravirtualized master's guid is guid 0 -- does not change */
if (!mlx4_is_master(dev->dev))
mlx4_ib_dispatch_event(dev, port_num,
@@ -294,6 +305,26 @@ static void smp_snoop(struct ib_device *ibdev, u8 port_num, struct ib_mad *mad,
}
break;
+ case IB_SMP_ATTR_SL_TO_VL_TABLE:
+ /* cache sl to vl mapping changes for use in
+ * filling QP1 LRH VL field when sending packets
+ */
+ if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_PORT_MNG_CHG_EV &&
+ dev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_SL_TO_VL_CHANGE_EVENT)
+ return;
+ if (!mlx4_is_slave(dev->dev)) {
+ union sl2vl_tbl_to_u64 sl2vl64;
+ int jj;
+
+ for (jj = 0; jj < 8; jj++) {
+ sl2vl64.sl8[jj] = ((struct ib_smp *)mad)->data[jj];
+ pr_debug("port %u, sl2vl[%d] = %02x\n",
+ port_num, jj, sl2vl64.sl8[jj]);
+ }
+ atomic64_set(&dev->sl2vl[port_num - 1], sl2vl64.sl64);
+ }
+ break;
+
default:
break;
}
@@ -343,12 +374,14 @@ static void node_desc_override(struct ib_device *dev,
mad->mad_hdr.method == IB_MGMT_METHOD_GET_RESP &&
mad->mad_hdr.attr_id == IB_SMP_ATTR_NODE_DESC) {
spin_lock_irqsave(&to_mdev(dev)->sm_lock, flags);
- memcpy(((struct ib_smp *) mad)->data, dev->node_desc, 64);
+ memcpy(((struct ib_smp *) mad)->data, dev->node_desc,
+ IB_DEVICE_NODE_DESC_MAX);
spin_unlock_irqrestore(&to_mdev(dev)->sm_lock, flags);
}
}
-static void forward_trap(struct mlx4_ib_dev *dev, u8 port_num, struct ib_mad *mad)
+static void forward_trap(struct mlx4_ib_dev *dev, u32 port_num,
+ const struct ib_mad *mad)
{
int qpn = mad->mad_hdr.mgmt_class != IB_MGMT_CLASS_SUBN_LID_ROUTED;
struct ib_mad_send_buf *send_buf;
@@ -358,7 +391,8 @@ static void forward_trap(struct mlx4_ib_dev *dev, u8 port_num, struct ib_mad *ma
if (agent) {
send_buf = ib_create_send_mad(agent, qpn, 0, 0, IB_MGMT_MAD_HDR,
- IB_MGMT_MAD_DATA, GFP_ATOMIC);
+ IB_MGMT_MAD_DATA, GFP_ATOMIC,
+ IB_MGMT_BASE_VERSION);
if (IS_ERR(send_buf))
return;
/*
@@ -396,7 +430,7 @@ static int mlx4_ib_demux_sa_handler(struct ib_device *ibdev, int port, int slave
return ret;
}
-int mlx4_ib_find_real_gid(struct ib_device *ibdev, u8 port, __be64 guid)
+int mlx4_ib_find_real_gid(struct ib_device *ibdev, u32 port, __be64 guid)
{
struct mlx4_ib_dev *dev = to_mdev(ibdev);
int i;
@@ -410,7 +444,7 @@ int mlx4_ib_find_real_gid(struct ib_device *ibdev, u8 port, __be64 guid)
static int find_slave_port_pkey_ix(struct mlx4_ib_dev *dev, int slave,
- u8 port, u16 pkey, u16 *ix)
+ u32 port, u16 pkey, u16 *ix)
{
int i, ret;
u8 unassigned_pkey_ix, pkey_ix, partial_ix = 0xFF;
@@ -450,16 +484,41 @@ static int find_slave_port_pkey_ix(struct mlx4_ib_dev *dev, int slave,
return -EINVAL;
}
-int mlx4_ib_send_to_slave(struct mlx4_ib_dev *dev, int slave, u8 port,
+static int get_gids_from_l3_hdr(struct ib_grh *grh, union ib_gid *sgid,
+ union ib_gid *dgid)
+{
+ int version = ib_get_rdma_header_version((const union rdma_network_hdr *)grh);
+ enum rdma_network_type net_type;
+
+ if (version == 4)
+ net_type = RDMA_NETWORK_IPV4;
+ else if (version == 6)
+ net_type = RDMA_NETWORK_IPV6;
+ else
+ return -EINVAL;
+
+ return ib_get_gids_from_rdma_hdr((union rdma_network_hdr *)grh, net_type,
+ sgid, dgid);
+}
+
+static int is_proxy_qp0(struct mlx4_ib_dev *dev, int qpn, int slave)
+{
+ int proxy_start = dev->dev->phys_caps.base_proxy_sqpn + 8 * slave;
+
+ return (qpn >= proxy_start && qpn <= proxy_start + 1);
+}
+
+int mlx4_ib_send_to_slave(struct mlx4_ib_dev *dev, int slave, u32 port,
enum ib_qp_type dest_qpt, struct ib_wc *wc,
struct ib_grh *grh, struct ib_mad *mad)
{
struct ib_sge list;
- struct ib_send_wr wr, *bad_wr;
+ struct ib_ud_wr wr;
+ const struct ib_send_wr *bad_wr;
struct mlx4_ib_demux_pv_ctx *tun_ctx;
struct mlx4_ib_demux_pv_qp *tun_qp;
struct mlx4_rcv_tunnel_mad *tun_mad;
- struct ib_ah_attr attr;
+ struct rdma_ah_attr attr;
struct ib_ah *ah;
struct ib_qp *src_qp = NULL;
unsigned tun_tx_ix = 0;
@@ -467,9 +526,12 @@ int mlx4_ib_send_to_slave(struct mlx4_ib_dev *dev, int slave, u8 port,
int ret = 0;
u16 tun_pkey_ix;
u16 cached_pkey;
+ u8 is_eth = dev->dev->caps.port_type[port] == MLX4_PORT_TYPE_ETH;
- if (dest_qpt > IB_QPT_GSI)
+ if (dest_qpt > IB_QPT_GSI) {
+ pr_debug("dest_qpt (%d) > IB_QPT_GSI\n", dest_qpt);
return -EINVAL;
+ }
tun_ctx = dev->sriov.demux[port-1].tun[slave];
@@ -477,10 +539,6 @@ int mlx4_ib_send_to_slave(struct mlx4_ib_dev *dev, int slave, u8 port,
if (!tun_ctx || tun_ctx->state != DEMUX_PV_STATE_ACTIVE)
return -EAGAIN;
- /* QP0 forwarding only for Dom0 */
- if (!dest_qpt && (mlx4_master_func_num(dev->dev) != slave))
- return -EINVAL;
-
if (!dest_qpt)
tun_qp = &tun_ctx->qp[0];
else
@@ -490,12 +548,20 @@ int mlx4_ib_send_to_slave(struct mlx4_ib_dev *dev, int slave, u8 port,
if (dest_qpt) {
u16 pkey_ix;
ret = ib_get_cached_pkey(&dev->ib_dev, port, wc->pkey_index, &cached_pkey);
- if (ret)
+ if (ret) {
+ pr_debug("unable to get %s cached pkey for index %d, ret %d\n",
+ is_proxy_qp0(dev, wc->src_qp, slave) ? "SMI" : "GSI",
+ wc->pkey_index, ret);
return -EINVAL;
+ }
ret = find_slave_port_pkey_ix(dev, slave, port, cached_pkey, &pkey_ix);
- if (ret)
+ if (ret) {
+ pr_debug("unable to get %s pkey ix for pkey 0x%x, ret %d\n",
+ is_proxy_qp0(dev, wc->src_qp, slave) ? "SMI" : "GSI",
+ cached_pkey, ret);
return -EINVAL;
+ }
tun_pkey_ix = pkey_ix;
} else
tun_pkey_ix = dev->pkeys.virt2phys_pkey[slave][port - 1][0];
@@ -508,8 +574,18 @@ int mlx4_ib_send_to_slave(struct mlx4_ib_dev *dev, int slave, u8 port,
/* create ah. Just need an empty one with the port num for the post send.
* The driver will set the force loopback bit in post_send */
memset(&attr, 0, sizeof attr);
- attr.port_num = port;
- ah = ib_create_ah(tun_ctx->pd, &attr);
+ attr.type = rdma_ah_find_type(&dev->ib_dev, port);
+
+ rdma_ah_set_port_num(&attr, port);
+ if (is_eth) {
+ union ib_gid sgid;
+ union ib_gid dgid;
+
+ if (get_gids_from_l3_hdr(grh, &sgid, &dgid))
+ return -EINVAL;
+ rdma_ah_set_grh(&attr, &dgid, 0, 0, 0, 0);
+ }
+ ah = rdma_create_ah(tun_ctx->pd, &attr, 0);
if (IS_ERR(ah))
return -ENOMEM;
@@ -522,11 +598,11 @@ int mlx4_ib_send_to_slave(struct mlx4_ib_dev *dev, int slave, u8 port,
tun_tx_ix = (++tun_qp->tx_ix_head) & (MLX4_NUM_TUNNEL_BUFS - 1);
spin_unlock(&tun_qp->tx_lock);
if (ret)
- goto out;
+ goto end;
tun_mad = (struct mlx4_rcv_tunnel_mad *) (tun_qp->tx_ring[tun_tx_ix].buf.addr);
if (tun_qp->tx_ring[tun_tx_ix].ah)
- ib_destroy_ah(tun_qp->tx_ring[tun_tx_ix].ah);
+ rdma_destroy_ah(tun_qp->tx_ring[tun_tx_ix].ah, 0);
tun_qp->tx_ring[tun_tx_ix].ah = ah;
ib_dma_sync_single_for_cpu(&dev->ib_dev,
tun_qp->tx_ring[tun_tx_ix].buf.map,
@@ -540,11 +616,36 @@ int mlx4_ib_send_to_slave(struct mlx4_ib_dev *dev, int slave, u8 port,
/* adjust tunnel data */
tun_mad->hdr.pkey_index = cpu_to_be16(tun_pkey_ix);
- tun_mad->hdr.sl_vid = cpu_to_be16(((u16)(wc->sl)) << 12);
- tun_mad->hdr.slid_mac_47_32 = cpu_to_be16(wc->slid);
tun_mad->hdr.flags_src_qp = cpu_to_be32(wc->src_qp & 0xFFFFFF);
tun_mad->hdr.g_ml_path = (grh && (wc->wc_flags & IB_WC_GRH)) ? 0x80 : 0;
+ if (is_eth) {
+ u16 vlan = 0;
+ if (mlx4_get_slave_default_vlan(dev->dev, port, slave, &vlan,
+ NULL)) {
+ /* VST mode */
+ if (vlan != wc->vlan_id)
+ /* Packet vlan is not the VST-assigned vlan.
+ * Drop the packet.
+ */
+ goto out;
+ else
+ /* Remove the vlan tag before forwarding
+ * the packet to the VF.
+ */
+ vlan = 0xffff;
+ } else {
+ vlan = wc->vlan_id;
+ }
+
+ tun_mad->hdr.sl_vid = cpu_to_be16(vlan);
+ memcpy((char *)&tun_mad->hdr.mac_31_0, &(wc->smac[0]), 4);
+ memcpy((char *)&tun_mad->hdr.slid_mac_47_32, &(wc->smac[4]), 2);
+ } else {
+ tun_mad->hdr.sl_vid = cpu_to_be16(((u16)(wc->sl)) << 12);
+ tun_mad->hdr.slid_mac_47_32 = ib_lid_be16(wc->slid);
+ }
+
ib_dma_sync_single_for_device(&dev->ib_dev,
tun_qp->tx_ring[tun_tx_ix].buf.map,
sizeof (struct mlx4_rcv_tunnel_mad),
@@ -552,34 +653,91 @@ int mlx4_ib_send_to_slave(struct mlx4_ib_dev *dev, int slave, u8 port,
list.addr = tun_qp->tx_ring[tun_tx_ix].buf.map;
list.length = sizeof (struct mlx4_rcv_tunnel_mad);
- list.lkey = tun_ctx->mr->lkey;
-
- wr.wr.ud.ah = ah;
- wr.wr.ud.port_num = port;
- wr.wr.ud.remote_qkey = IB_QP_SET_QKEY;
- wr.wr.ud.remote_qpn = dqpn;
- wr.next = NULL;
- wr.wr_id = ((u64) tun_tx_ix) | MLX4_TUN_SET_WRID_QPN(dest_qpt);
- wr.sg_list = &list;
- wr.num_sge = 1;
- wr.opcode = IB_WR_SEND;
- wr.send_flags = IB_SEND_SIGNALED;
-
- ret = ib_post_send(src_qp, &wr, &bad_wr);
-out:
- if (ret)
- ib_destroy_ah(ah);
+ list.lkey = tun_ctx->pd->local_dma_lkey;
+
+ wr.ah = ah;
+ wr.port_num = port;
+ wr.remote_qkey = IB_QP_SET_QKEY;
+ wr.remote_qpn = dqpn;
+ wr.wr.next = NULL;
+ wr.wr.wr_id = ((u64) tun_tx_ix) | MLX4_TUN_SET_WRID_QPN(dest_qpt);
+ wr.wr.sg_list = &list;
+ wr.wr.num_sge = 1;
+ wr.wr.opcode = IB_WR_SEND;
+ wr.wr.send_flags = IB_SEND_SIGNALED;
+
+ ret = ib_post_send(src_qp, &wr.wr, &bad_wr);
+ if (!ret)
+ return 0;
+ out:
+ spin_lock(&tun_qp->tx_lock);
+ tun_qp->tx_ix_tail++;
+ spin_unlock(&tun_qp->tx_lock);
+ tun_qp->tx_ring[tun_tx_ix].ah = NULL;
+end:
+ rdma_destroy_ah(ah, 0);
return ret;
}
-static int mlx4_ib_demux_mad(struct ib_device *ibdev, u8 port,
+static int mlx4_ib_demux_mad(struct ib_device *ibdev, u32 port,
struct ib_wc *wc, struct ib_grh *grh,
struct ib_mad *mad)
{
struct mlx4_ib_dev *dev = to_mdev(ibdev);
- int err;
- int slave;
+ int err, other_port;
+ int slave = -1;
u8 *slave_id;
+ int is_eth = 0;
+
+ if (rdma_port_get_link_layer(ibdev, port) == IB_LINK_LAYER_INFINIBAND)
+ is_eth = 0;
+ else
+ is_eth = 1;
+
+ if (is_eth) {
+ union ib_gid dgid;
+ union ib_gid sgid;
+
+ if (get_gids_from_l3_hdr(grh, &sgid, &dgid))
+ return -EINVAL;
+ if (!(wc->wc_flags & IB_WC_GRH)) {
+ mlx4_ib_warn(ibdev, "RoCE grh not present.\n");
+ return -EINVAL;
+ }
+ if (mad->mad_hdr.mgmt_class != IB_MGMT_CLASS_CM) {
+ mlx4_ib_warn(ibdev, "RoCE mgmt class is not CM\n");
+ return -EINVAL;
+ }
+ err = mlx4_get_slave_from_roce_gid(dev->dev, port, dgid.raw, &slave);
+ if (err && mlx4_is_mf_bonded(dev->dev)) {
+ other_port = (port == 1) ? 2 : 1;
+ err = mlx4_get_slave_from_roce_gid(dev->dev, other_port, dgid.raw, &slave);
+ if (!err) {
+ port = other_port;
+ pr_debug("resolved slave %d from gid %pI6 wire port %d other %d\n",
+ slave, grh->dgid.raw, port, other_port);
+ }
+ }
+ if (err) {
+ mlx4_ib_warn(ibdev, "failed matching grh\n");
+ return -ENOENT;
+ }
+ if (slave >= dev->dev->caps.sqp_demux) {
+ mlx4_ib_warn(ibdev, "slave id: %d is bigger than allowed:%d\n",
+ slave, dev->dev->caps.sqp_demux);
+ return -ENOENT;
+ }
+
+ if (mlx4_ib_demux_cm_handler(ibdev, port, NULL, mad))
+ return 0;
+
+ err = mlx4_ib_send_to_slave(dev, slave, port, wc->qp->qp_type, wc, grh, mad);
+ if (err)
+ pr_debug("failed sending %s to slave %d via tunnel qp (%d)\n",
+ is_proxy_qp0(dev, wc->src_qp, slave) ? "SMI" : "GSI",
+ slave, err);
+ return 0;
+ }
/* Initially assume that this mad is for us */
slave = mlx4_master_func_num(dev->dev);
@@ -594,14 +752,37 @@ static int mlx4_ib_demux_mad(struct ib_device *ibdev, u8 port,
/* If a grh is present, we demux according to it */
if (wc->wc_flags & IB_WC_GRH) {
- slave = mlx4_ib_find_real_gid(ibdev, port, grh->dgid.global.interface_id);
- if (slave < 0) {
- mlx4_ib_warn(ibdev, "failed matching grh\n");
- return -ENOENT;
+ if (grh->dgid.global.interface_id ==
+ cpu_to_be64(IB_SA_WELL_KNOWN_GUID) &&
+ grh->dgid.global.subnet_prefix == cpu_to_be64(
+ atomic64_read(&dev->sriov.demux[port - 1].subnet_prefix))) {
+ slave = 0;
+ } else {
+ slave = mlx4_ib_find_real_gid(ibdev, port,
+ grh->dgid.global.interface_id);
+ if (slave < 0) {
+ mlx4_ib_warn(ibdev, "failed matching grh\n");
+ return -ENOENT;
+ }
}
}
/* Class-specific handling */
switch (mad->mad_hdr.mgmt_class) {
+ case IB_MGMT_CLASS_SUBN_LID_ROUTED:
+ case IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE:
+ /* 255 indicates the dom0 */
+ if (slave != 255 && slave != mlx4_master_func_num(dev->dev)) {
+ if (!mlx4_vf_smi_enabled(dev->dev, slave, port))
+ return -EPERM;
+ /* for a VF. drop unsolicited MADs */
+ if (!(mad->mad_hdr.method & IB_MGMT_METHOD_RESP)) {
+ mlx4_ib_warn(ibdev, "demux QP0. rejecting unsolicited mad for slave %d class 0x%x, method 0x%x\n",
+ slave, mad->mad_hdr.mgmt_class,
+ mad->mad_hdr.method);
+ return -EINVAL;
+ }
+ }
+ break;
case IB_MGMT_CLASS_SUBN_ADM:
if (mlx4_ib_demux_sa_handler(ibdev, port, slave,
(struct ib_sa_mad *) mad))
@@ -632,39 +813,21 @@ static int mlx4_ib_demux_mad(struct ib_device *ibdev, u8 port,
err = mlx4_ib_send_to_slave(dev, slave, port, wc->qp->qp_type, wc, grh, mad);
if (err)
- pr_debug("failed sending to slave %d via tunnel qp (%d)\n",
+ pr_debug("failed sending %s to slave %d via tunnel qp (%d)\n",
+ is_proxy_qp0(dev, wc->src_qp, slave) ? "SMI" : "GSI",
slave, err);
return 0;
}
-static int ib_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num,
- struct ib_wc *in_wc, struct ib_grh *in_grh,
- struct ib_mad *in_mad, struct ib_mad *out_mad)
+static int ib_process_mad(struct ib_device *ibdev, int mad_flags, u32 port_num,
+ const struct ib_wc *in_wc, const struct ib_grh *in_grh,
+ const struct ib_mad *in_mad, struct ib_mad *out_mad)
{
u16 slid, prev_lid = 0;
int err;
struct ib_port_attr pattr;
- if (in_wc && in_wc->qp->qp_num) {
- pr_debug("received MAD: slid:%d sqpn:%d "
- "dlid_bits:%d dqpn:%d wc_flags:0x%x, cls %x, mtd %x, atr %x\n",
- in_wc->slid, in_wc->src_qp,
- in_wc->dlid_path_bits,
- in_wc->qp->qp_num,
- in_wc->wc_flags,
- in_mad->mad_hdr.mgmt_class, in_mad->mad_hdr.method,
- be16_to_cpu(in_mad->mad_hdr.attr_id));
- if (in_wc->wc_flags & IB_WC_GRH) {
- pr_debug("sgid_hi:0x%016llx sgid_lo:0x%016llx\n",
- be64_to_cpu(in_grh->sgid.global.subnet_prefix),
- be64_to_cpu(in_grh->sgid.global.interface_id));
- pr_debug("dgid_hi:0x%016llx dgid_lo:0x%016llx\n",
- be64_to_cpu(in_grh->dgid.global.subnet_prefix),
- be64_to_cpu(in_grh->dgid.global.interface_id));
- }
- }
-
- slid = in_wc ? in_wc->slid : be16_to_cpu(IB_LID_PERMISSIVE);
+ slid = in_wc ? ib_lid_cpu16(in_wc->slid) : be16_to_cpu(IB_LID_PERMISSIVE);
if (in_mad->mad_hdr.method == IB_MGMT_METHOD_TRAP && slid == 0) {
forward_trap(to_mdev(ibdev), port_num, in_mad);
@@ -698,7 +861,7 @@ static int ib_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num,
in_mad->mad_hdr.method == IB_MGMT_METHOD_SET &&
in_mad->mad_hdr.attr_id == IB_SMP_ATTR_PORT_INFO &&
!ib_query_port(ibdev, port_num, &pattr))
- prev_lid = pattr.lid;
+ prev_lid = ib_lid_cpu16(pattr.lid);
err = mlx4_MAD_IFC(to_mdev(ibdev),
(mad_flags & IB_MAD_IGNORE_MKEY ? MLX4_MAD_IFC_IGNORE_MKEY : 0) |
@@ -709,8 +872,7 @@ static int ib_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num,
return IB_MAD_RESULT_FAILURE;
if (!out_mad->mad_hdr.status) {
- if (!(to_mdev(ibdev)->dev->caps.flags & MLX4_DEV_CAP_FLAG_PORT_MNG_CHG_EV))
- smp_snoop(ibdev, port_num, in_mad, prev_lid);
+ smp_snoop(ibdev, port_num, in_mad, prev_lid);
/* slaves get node desc from FW */
if (!mlx4_is_slave(to_mdev(ibdev)->dev))
node_desc_override(ibdev, out_mad);
@@ -727,44 +889,88 @@ static int ib_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num,
return IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY;
}
-static void edit_counter(struct mlx4_counter *cnt,
- struct ib_pma_portcounters *pma_cnt)
+static void edit_counter(struct mlx4_counter *cnt, void *counters,
+ __be16 attr_id)
+{
+ switch (attr_id) {
+ case IB_PMA_PORT_COUNTERS:
+ {
+ struct ib_pma_portcounters *pma_cnt =
+ (struct ib_pma_portcounters *)counters;
+
+ ASSIGN_32BIT_COUNTER(pma_cnt->port_xmit_data,
+ (be64_to_cpu(cnt->tx_bytes) >> 2));
+ ASSIGN_32BIT_COUNTER(pma_cnt->port_rcv_data,
+ (be64_to_cpu(cnt->rx_bytes) >> 2));
+ ASSIGN_32BIT_COUNTER(pma_cnt->port_xmit_packets,
+ be64_to_cpu(cnt->tx_frames));
+ ASSIGN_32BIT_COUNTER(pma_cnt->port_rcv_packets,
+ be64_to_cpu(cnt->rx_frames));
+ break;
+ }
+ case IB_PMA_PORT_COUNTERS_EXT:
+ {
+ struct ib_pma_portcounters_ext *pma_cnt_ext =
+ (struct ib_pma_portcounters_ext *)counters;
+
+ pma_cnt_ext->port_xmit_data =
+ cpu_to_be64(be64_to_cpu(cnt->tx_bytes) >> 2);
+ pma_cnt_ext->port_rcv_data =
+ cpu_to_be64(be64_to_cpu(cnt->rx_bytes) >> 2);
+ pma_cnt_ext->port_xmit_packets = cnt->tx_frames;
+ pma_cnt_ext->port_rcv_packets = cnt->rx_frames;
+ break;
+ }
+ }
+}
+
+static int iboe_process_mad_port_info(void *out_mad)
{
- pma_cnt->port_xmit_data = cpu_to_be32((be64_to_cpu(cnt->tx_bytes)>>2));
- pma_cnt->port_rcv_data = cpu_to_be32((be64_to_cpu(cnt->rx_bytes)>>2));
- pma_cnt->port_xmit_packets = cpu_to_be32(be64_to_cpu(cnt->tx_frames));
- pma_cnt->port_rcv_packets = cpu_to_be32(be64_to_cpu(cnt->rx_frames));
+ struct ib_class_port_info cpi = {};
+
+ cpi.capability_mask = IB_PMA_CLASS_CAP_EXT_WIDTH;
+ memcpy(out_mad, &cpi, sizeof(cpi));
+ return IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY;
}
-static int iboe_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num,
- struct ib_wc *in_wc, struct ib_grh *in_grh,
- struct ib_mad *in_mad, struct ib_mad *out_mad)
+static int iboe_process_mad(struct ib_device *ibdev, int mad_flags,
+ u32 port_num, const struct ib_wc *in_wc,
+ const struct ib_grh *in_grh,
+ const struct ib_mad *in_mad, struct ib_mad *out_mad)
{
- struct mlx4_cmd_mailbox *mailbox;
+ struct mlx4_counter counter_stats;
struct mlx4_ib_dev *dev = to_mdev(ibdev);
- int err;
- u32 inmod = dev->counters[port_num - 1] & 0xffff;
- u8 mode;
+ struct counter_index *tmp_counter;
+ int err = IB_MAD_RESULT_FAILURE, stats_avail = 0;
if (in_mad->mad_hdr.mgmt_class != IB_MGMT_CLASS_PERF_MGMT)
return -EINVAL;
- mailbox = mlx4_alloc_cmd_mailbox(dev->dev);
- if (IS_ERR(mailbox))
- return IB_MAD_RESULT_FAILURE;
-
- err = mlx4_cmd_box(dev->dev, 0, mailbox->dma, inmod, 0,
- MLX4_CMD_QUERY_IF_STAT, MLX4_CMD_TIME_CLASS_C,
- MLX4_CMD_WRAPPED);
- if (err)
- err = IB_MAD_RESULT_FAILURE;
- else {
- memset(out_mad->data, 0, sizeof out_mad->data);
- mode = ((struct mlx4_counter *)mailbox->buf)->counter_mode;
- switch (mode & 0xf) {
+ if (in_mad->mad_hdr.attr_id == IB_PMA_CLASS_PORT_INFO)
+ return iboe_process_mad_port_info((void *)(out_mad->data + 40));
+
+ memset(&counter_stats, 0, sizeof(counter_stats));
+ mutex_lock(&dev->counters_table[port_num - 1].mutex);
+ list_for_each_entry(tmp_counter,
+ &dev->counters_table[port_num - 1].counters_list,
+ list) {
+ err = mlx4_get_counter_stats(dev->dev,
+ tmp_counter->index,
+ &counter_stats, 0);
+ if (err) {
+ err = IB_MAD_RESULT_FAILURE;
+ stats_avail = 0;
+ break;
+ }
+ stats_avail = 1;
+ }
+ mutex_unlock(&dev->counters_table[port_num - 1].mutex);
+ if (stats_avail) {
+ switch (counter_stats.counter_mode & 0xf) {
case 0:
- edit_counter(mailbox->buf,
- (void *)(out_mad->data + 40));
+ edit_counter(&counter_stats,
+ (void *)(out_mad->data + 40),
+ in_mad->mad_hdr.attr_id);
err = IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY;
break;
default:
@@ -772,32 +978,45 @@ static int iboe_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num,
}
}
- mlx4_free_cmd_mailbox(dev->dev, mailbox);
-
return err;
}
-int mlx4_ib_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num,
- struct ib_wc *in_wc, struct ib_grh *in_grh,
- struct ib_mad *in_mad, struct ib_mad *out_mad)
+int mlx4_ib_process_mad(struct ib_device *ibdev, int mad_flags, u32 port_num,
+ const struct ib_wc *in_wc, const struct ib_grh *in_grh,
+ const struct ib_mad *in, struct ib_mad *out,
+ size_t *out_mad_size, u16 *out_mad_pkey_index)
{
- switch (rdma_port_get_link_layer(ibdev, port_num)) {
- case IB_LINK_LAYER_INFINIBAND:
- return ib_process_mad(ibdev, mad_flags, port_num, in_wc,
- in_grh, in_mad, out_mad);
- case IB_LINK_LAYER_ETHERNET:
- return iboe_process_mad(ibdev, mad_flags, port_num, in_wc,
- in_grh, in_mad, out_mad);
- default:
- return -EINVAL;
+ struct mlx4_ib_dev *dev = to_mdev(ibdev);
+ enum rdma_link_layer link = rdma_port_get_link_layer(ibdev, port_num);
+
+ /* iboe_process_mad() which uses the HCA flow-counters to implement IB PMA
+ * queries, should be called only by VFs and for that specific purpose
+ */
+ if (link == IB_LINK_LAYER_INFINIBAND) {
+ if (mlx4_is_slave(dev->dev) &&
+ (in->mad_hdr.mgmt_class == IB_MGMT_CLASS_PERF_MGMT &&
+ (in->mad_hdr.attr_id == IB_PMA_PORT_COUNTERS ||
+ in->mad_hdr.attr_id == IB_PMA_PORT_COUNTERS_EXT ||
+ in->mad_hdr.attr_id == IB_PMA_CLASS_PORT_INFO)))
+ return iboe_process_mad(ibdev, mad_flags, port_num,
+ in_wc, in_grh, in, out);
+
+ return ib_process_mad(ibdev, mad_flags, port_num, in_wc, in_grh,
+ in, out);
}
+
+ if (link == IB_LINK_LAYER_ETHERNET)
+ return iboe_process_mad(ibdev, mad_flags, port_num, in_wc,
+ in_grh, in, out);
+
+ return -EINVAL;
}
static void send_handler(struct ib_mad_agent *agent,
struct ib_mad_send_wc *mad_send_wc)
{
if (mad_send_wc->send_buf->context[0])
- ib_destroy_ah(mad_send_wc->send_buf->context[0]);
+ rdma_destroy_ah(mad_send_wc->send_buf->context[0], 0);
ib_free_send_mad(mad_send_wc->send_buf);
}
@@ -815,7 +1034,7 @@ int mlx4_ib_mad_init(struct mlx4_ib_dev *dev)
agent = ib_register_mad_agent(&dev->ib_dev, p + 1,
q ? IB_QPT_GSI : IB_QPT_SMI,
NULL, 0, send_handler,
- NULL, NULL);
+ NULL, NULL, 0);
if (IS_ERR(agent)) {
ret = PTR_ERR(agent);
goto err;
@@ -852,11 +1071,11 @@ void mlx4_ib_mad_cleanup(struct mlx4_ib_dev *dev)
}
if (dev->sm_ah[p])
- ib_destroy_ah(dev->sm_ah[p]);
+ rdma_destroy_ah(dev->sm_ah[p], 0);
}
}
-static void handle_lid_change_event(struct mlx4_ib_dev *dev, u8 port_num)
+static void handle_lid_change_event(struct mlx4_ib_dev *dev, u32 port_num)
{
mlx4_ib_dispatch_event(dev, port_num, IB_EVENT_LID_CHANGE);
@@ -865,7 +1084,7 @@ static void handle_lid_change_event(struct mlx4_ib_dev *dev, u8 port_num)
MLX4_EQ_PORT_INFO_LID_CHANGE_MASK);
}
-static void handle_client_rereg_event(struct mlx4_ib_dev *dev, u8 port_num)
+static void handle_client_rereg_event(struct mlx4_ib_dev *dev, u32 port_num)
{
/* re-configure the alias-guid and mcg's */
if (mlx4_is_master(dev->dev)) {
@@ -877,6 +1096,23 @@ static void handle_client_rereg_event(struct mlx4_ib_dev *dev, u8 port_num)
MLX4_EQ_PORT_INFO_CLIENT_REREG_MASK);
}
}
+
+ /* Update the sl to vl table from inside client rereg
+ * only if in secure-host mode (snooping is not possible)
+ * and the sl-to-vl change event is not generated by FW.
+ */
+ if (!mlx4_is_slave(dev->dev) &&
+ dev->dev->flags & MLX4_FLAG_SECURE_HOST &&
+ !(dev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_SL_TO_VL_CHANGE_EVENT)) {
+ if (mlx4_is_master(dev->dev))
+ /* already in work queue from mlx4_ib_event queueing
+ * mlx4_handle_port_mgmt_change_event, which calls
+ * this procedure. Therefore, call sl2vl_update directly.
+ */
+ mlx4_ib_sl2vl_update(dev, port_num);
+ else
+ mlx4_sched_ib_sl2vl_update_work(dev, port_num);
+ }
mlx4_ib_dispatch_event(dev, port_num, IB_EVENT_CLIENT_REREGISTER);
}
@@ -887,7 +1123,7 @@ static void propagate_pkey_ev(struct mlx4_ib_dev *dev, int port_num,
GET_MASK_FROM_EQE(eqe));
}
-static void handle_slaves_guid_change(struct mlx4_ib_dev *dev, u8 port_num,
+static void handle_slaves_guid_change(struct mlx4_ib_dev *dev, u32 port_num,
u32 guid_tbl_blk_num, u32 change_bitmap)
{
struct ib_smp *in_mad = NULL;
@@ -899,10 +1135,8 @@ static void handle_slaves_guid_change(struct mlx4_ib_dev *dev, u8 port_num,
in_mad = kmalloc(sizeof *in_mad, GFP_KERNEL);
out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
- if (!in_mad || !out_mad) {
- mlx4_ib_warn(&dev->ib_dev, "failed to allocate memory for guid info mads\n");
+ if (!in_mad || !out_mad)
goto out;
- }
guid_tbl_blk_num *= 4;
@@ -945,7 +1179,7 @@ void handle_port_mgmt_change_event(struct work_struct *work)
struct ib_event_work *ew = container_of(work, struct ib_event_work, work);
struct mlx4_ib_dev *dev = ew->ib_dev;
struct mlx4_eqe *eqe = &(ew->ib_eqe);
- u8 port = eqe->event.port_mgmt_change.port;
+ u32 port = eqe->event.port_mgmt_change.port;
u32 changed_attr;
u32 tbl_block;
u32 change_bitmap;
@@ -968,6 +1202,27 @@ void handle_port_mgmt_change_event(struct work_struct *work)
/* Generate GUID changed event */
if (changed_attr & MLX4_EQ_PORT_INFO_GID_PFX_CHANGE_MASK) {
+ if (mlx4_is_master(dev->dev)) {
+ union ib_gid gid;
+ int err = 0;
+
+ if (!eqe->event.port_mgmt_change.params.port_info.gid_prefix)
+ err = __mlx4_ib_query_gid(&dev->ib_dev, port, 0, &gid, 1);
+ else
+ gid.global.subnet_prefix =
+ eqe->event.port_mgmt_change.params.port_info.gid_prefix;
+ if (err) {
+ pr_warn("Could not change QP1 subnet prefix for port %d: query_gid error (%d)\n",
+ port, err);
+ } else {
+ pr_debug("Changing QP1 subnet prefix for port %d. old=0x%llx. new=0x%llx\n",
+ port,
+ (u64)atomic64_read(&dev->sriov.demux[port - 1].subnet_prefix),
+ be64_to_cpu(gid.global.subnet_prefix));
+ atomic64_set(&dev->sriov.demux[port - 1].subnet_prefix,
+ be64_to_cpu(gid.global.subnet_prefix));
+ }
+ }
mlx4_ib_dispatch_event(dev, port, IB_EVENT_GID_CHANGE);
/*if master, notify all slaves*/
if (mlx4_is_master(dev->dev))
@@ -995,6 +1250,24 @@ void handle_port_mgmt_change_event(struct work_struct *work)
handle_slaves_guid_change(dev, port, tbl_block, change_bitmap);
}
break;
+
+ case MLX4_DEV_PMC_SUBTYPE_SL_TO_VL_MAP:
+ /* cache sl to vl mapping changes for use in
+ * filling QP1 LRH VL field when sending packets
+ */
+ if (!mlx4_is_slave(dev->dev)) {
+ union sl2vl_tbl_to_u64 sl2vl64;
+ int jj;
+
+ for (jj = 0; jj < 8; jj++) {
+ sl2vl64.sl8[jj] =
+ eqe->event.port_mgmt_change.params.sl2vl_tbl_change_info.sl2vl_table[jj];
+ pr_debug("port %u, sl2vl[%d] = %02x\n",
+ port, jj, sl2vl64.sl8[jj]);
+ }
+ atomic64_set(&dev->sl2vl[port - 1], sl2vl64.sl64);
+ }
+ break;
default:
pr_warn("Unsupported subtype 0x%x for "
"Port Management Change event\n", eqe->subtype);
@@ -1003,7 +1276,7 @@ void handle_port_mgmt_change_event(struct work_struct *work)
kfree(ew);
}
-void mlx4_ib_dispatch_event(struct mlx4_ib_dev *dev, u8 port_num,
+void mlx4_ib_dispatch_event(struct mlx4_ib_dev *dev, u32 port_num,
enum ib_event_type type)
{
struct ib_event event;
@@ -1026,12 +1299,25 @@ static void mlx4_ib_tunnel_comp_handler(struct ib_cq *cq, void *arg)
spin_unlock_irqrestore(&dev->sriov.going_down_lock, flags);
}
+static void mlx4_ib_wire_comp_handler(struct ib_cq *cq, void *arg)
+{
+ unsigned long flags;
+ struct mlx4_ib_demux_pv_ctx *ctx = cq->cq_context;
+ struct mlx4_ib_dev *dev = to_mdev(ctx->ib_dev);
+
+ spin_lock_irqsave(&dev->sriov.going_down_lock, flags);
+ if (!dev->sriov.is_going_down && ctx->state == DEMUX_PV_STATE_ACTIVE)
+ queue_work(ctx->wi_wq, &ctx->work);
+ spin_unlock_irqrestore(&dev->sriov.going_down_lock, flags);
+}
+
static int mlx4_ib_post_pv_qp_buf(struct mlx4_ib_demux_pv_ctx *ctx,
struct mlx4_ib_demux_pv_qp *tun_qp,
int index)
{
struct ib_sge sg_list;
- struct ib_recv_wr recv_wr, *bad_recv_wr;
+ struct ib_recv_wr recv_wr;
+ const struct ib_recv_wr *bad_recv_wr;
int size;
size = (tun_qp->qp->qp_type == IB_QPT_UD) ?
@@ -1039,7 +1325,7 @@ static int mlx4_ib_post_pv_qp_buf(struct mlx4_ib_demux_pv_ctx *ctx,
sg_list.addr = tun_qp->ring[index].map;
sg_list.length = size;
- sg_list.lkey = ctx->mr->lkey;
+ sg_list.lkey = ctx->pd->local_dma_lkey;
recv_wr.next = NULL;
recv_wr.sg_list = &sg_list;
@@ -1067,31 +1353,23 @@ static int mlx4_ib_multiplex_sa_handler(struct ib_device *ibdev, int port,
return ret;
}
-static int is_proxy_qp0(struct mlx4_ib_dev *dev, int qpn, int slave)
-{
- int proxy_start = dev->dev->phys_caps.base_proxy_sqpn + 8 * slave;
-
- return (qpn >= proxy_start && qpn <= proxy_start + 1);
-}
-
-
-int mlx4_ib_send_to_wire(struct mlx4_ib_dev *dev, int slave, u8 port,
- enum ib_qp_type dest_qpt, u16 pkey_index, u32 remote_qpn,
- u32 qkey, struct ib_ah_attr *attr, struct ib_mad *mad)
+int mlx4_ib_send_to_wire(struct mlx4_ib_dev *dev, int slave, u32 port,
+ enum ib_qp_type dest_qpt, u16 pkey_index,
+ u32 remote_qpn, u32 qkey, struct rdma_ah_attr *attr,
+ u8 *s_mac, u16 vlan_id, struct ib_mad *mad)
{
struct ib_sge list;
- struct ib_send_wr wr, *bad_wr;
+ struct ib_ud_wr wr;
+ const struct ib_send_wr *bad_wr;
struct mlx4_ib_demux_pv_ctx *sqp_ctx;
struct mlx4_ib_demux_pv_qp *sqp;
struct mlx4_mad_snd_buf *sqp_mad;
struct ib_ah *ah;
struct ib_qp *send_qp = NULL;
unsigned wire_tx_ix = 0;
- int ret = 0;
u16 wire_pkey_ix;
int src_qpnum;
- u8 sgid_index;
-
+ int ret;
sqp_ctx = dev->sriov.sqps[port-1];
@@ -1099,10 +1377,6 @@ int mlx4_ib_send_to_wire(struct mlx4_ib_dev *dev, int slave, u8 port,
if (!sqp_ctx || sqp_ctx->state != DEMUX_PV_STATE_ACTIVE)
return -EAGAIN;
- /* QP0 forwarding only for Dom0 */
- if (dest_qpt == IB_QPT_SMI && (mlx4_master_func_num(dev->dev) != slave))
- return -EINVAL;
-
if (dest_qpt == IB_QPT_SMI) {
src_qpnum = 0;
sqp = &sqp_ctx->qp[0];
@@ -1115,29 +1389,32 @@ int mlx4_ib_send_to_wire(struct mlx4_ib_dev *dev, int slave, u8 port,
send_qp = sqp->qp;
- /* create ah */
- sgid_index = attr->grh.sgid_index;
- attr->grh.sgid_index = 0;
- ah = ib_create_ah(sqp_ctx->pd, attr);
- if (IS_ERR(ah))
+ ah = rdma_zalloc_drv_obj(sqp_ctx->pd->device, ib_ah);
+ if (!ah)
return -ENOMEM;
- attr->grh.sgid_index = sgid_index;
- to_mah(ah)->av.ib.gid_index = sgid_index;
- /* get rid of force-loopback bit */
- to_mah(ah)->av.ib.port_pd &= cpu_to_be32(0x7FFFFFFF);
+
+ ah->device = sqp_ctx->pd->device;
+ ah->pd = sqp_ctx->pd;
+
+ /* create ah */
+ ret = mlx4_ib_create_ah_slave(ah, attr,
+ rdma_ah_retrieve_grh(attr)->sgid_index,
+ s_mac, vlan_id);
+ if (ret)
+ goto out;
+
spin_lock(&sqp->tx_lock);
if (sqp->tx_ix_head - sqp->tx_ix_tail >=
- (MLX4_NUM_TUNNEL_BUFS - 1))
+ (MLX4_NUM_WIRE_BUFS - 1))
ret = -EAGAIN;
else
- wire_tx_ix = (++sqp->tx_ix_head) & (MLX4_NUM_TUNNEL_BUFS - 1);
+ wire_tx_ix = (++sqp->tx_ix_head) & (MLX4_NUM_WIRE_BUFS - 1);
spin_unlock(&sqp->tx_lock);
if (ret)
goto out;
sqp_mad = (struct mlx4_mad_snd_buf *) (sqp->tx_ring[wire_tx_ix].buf.addr);
- if (sqp->tx_ring[wire_tx_ix].ah)
- ib_destroy_ah(sqp->tx_ring[wire_tx_ix].ah);
+ kfree(sqp->tx_ring[wire_tx_ix].ah);
sqp->tx_ring[wire_tx_ix].ah = ah;
ib_dma_sync_single_for_cpu(&dev->ib_dev,
sqp->tx_ring[wire_tx_ix].buf.map,
@@ -1153,27 +1430,50 @@ int mlx4_ib_send_to_wire(struct mlx4_ib_dev *dev, int slave, u8 port,
list.addr = sqp->tx_ring[wire_tx_ix].buf.map;
list.length = sizeof (struct mlx4_mad_snd_buf);
- list.lkey = sqp_ctx->mr->lkey;
-
- wr.wr.ud.ah = ah;
- wr.wr.ud.port_num = port;
- wr.wr.ud.pkey_index = wire_pkey_ix;
- wr.wr.ud.remote_qkey = qkey;
- wr.wr.ud.remote_qpn = remote_qpn;
- wr.next = NULL;
- wr.wr_id = ((u64) wire_tx_ix) | MLX4_TUN_SET_WRID_QPN(src_qpnum);
- wr.sg_list = &list;
- wr.num_sge = 1;
- wr.opcode = IB_WR_SEND;
- wr.send_flags = IB_SEND_SIGNALED;
-
- ret = ib_post_send(send_qp, &wr, &bad_wr);
+ list.lkey = sqp_ctx->pd->local_dma_lkey;
+
+ wr.ah = ah;
+ wr.port_num = port;
+ wr.pkey_index = wire_pkey_ix;
+ wr.remote_qkey = qkey;
+ wr.remote_qpn = remote_qpn;
+ wr.wr.next = NULL;
+ wr.wr.wr_id = ((u64) wire_tx_ix) | MLX4_TUN_SET_WRID_QPN(src_qpnum);
+ wr.wr.sg_list = &list;
+ wr.wr.num_sge = 1;
+ wr.wr.opcode = IB_WR_SEND;
+ wr.wr.send_flags = IB_SEND_SIGNALED;
+
+ ret = ib_post_send(send_qp, &wr.wr, &bad_wr);
+ if (!ret)
+ return 0;
+
+ spin_lock(&sqp->tx_lock);
+ sqp->tx_ix_tail++;
+ spin_unlock(&sqp->tx_lock);
+ sqp->tx_ring[wire_tx_ix].ah = NULL;
out:
- if (ret)
- ib_destroy_ah(ah);
+ kfree(ah);
return ret;
}
+static int get_slave_base_gid_ix(struct mlx4_ib_dev *dev, int slave, int port)
+{
+ if (rdma_port_get_link_layer(&dev->ib_dev, port) == IB_LINK_LAYER_INFINIBAND)
+ return slave;
+ return mlx4_get_base_gid_ix(dev->dev, slave, port);
+}
+
+static void fill_in_real_sgid_index(struct mlx4_ib_dev *dev, int slave, int port,
+ struct rdma_ah_attr *ah_attr)
+{
+ struct ib_global_route *grh = rdma_ah_retrieve_grh(ah_attr);
+ if (rdma_port_get_link_layer(&dev->ib_dev, port) == IB_LINK_LAYER_INFINIBAND)
+ grh->sgid_index = slave;
+ else
+ grh->sgid_index += get_slave_base_gid_ix(dev, slave, port);
+}
+
static void mlx4_ib_multiplex_mad(struct mlx4_ib_demux_pv_ctx *ctx, struct ib_wc *wc)
{
struct mlx4_ib_dev *dev = to_mdev(ctx->ib_dev);
@@ -1181,9 +1481,14 @@ static void mlx4_ib_multiplex_mad(struct mlx4_ib_demux_pv_ctx *ctx, struct ib_wc
int wr_ix = wc->wr_id & (MLX4_NUM_TUNNEL_BUFS - 1);
struct mlx4_tunnel_mad *tunnel = tun_qp->ring[wr_ix].addr;
struct mlx4_ib_ah ah;
- struct ib_ah_attr ah_attr;
+ struct rdma_ah_attr ah_attr;
u8 *slave_id;
int slave;
+ int port;
+ u16 vlan_id;
+ u8 qos;
+ u8 *dmac;
+ int sts;
/* Get slave that sent this packet */
if (wc->src_qp < dev->dev->phys_caps.base_proxy_sqpn ||
@@ -1199,11 +1504,6 @@ static void mlx4_ib_multiplex_mad(struct mlx4_ib_demux_pv_ctx *ctx, struct ib_wc
"belongs to another slave\n", wc->src_qp);
return;
}
- if (slave != mlx4_master_func_num(dev->dev) && !(wc->src_qp & 0x2)) {
- mlx4_ib_warn(ctx->ib_dev, "can't multiplex bad sqp:%d: "
- "non-master trying to send QP0 packets\n", wc->src_qp);
- return;
- }
/* Map transaction ID */
ib_dma_sync_single_for_cpu(ctx->ib_dev, tun_qp->ring[wr_ix].map,
@@ -1225,12 +1525,19 @@ static void mlx4_ib_multiplex_mad(struct mlx4_ib_demux_pv_ctx *ctx, struct ib_wc
return;
} else
*slave_id = slave;
+ break;
default:
/* nothing */;
}
/* Class-specific handling */
switch (tunnel->mad.mad_hdr.mgmt_class) {
+ case IB_MGMT_CLASS_SUBN_LID_ROUTED:
+ case IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE:
+ if (slave != mlx4_master_func_num(dev->dev) &&
+ !mlx4_vf_smi_enabled(dev->dev, slave, ctx->port))
+ return;
+ break;
case IB_MGMT_CLASS_SUBN_ADM:
if (mlx4_ib_multiplex_sa_handler(ctx->ib_dev, ctx->port, slave,
(struct ib_sa_mad *) &tunnel->mad))
@@ -1259,21 +1566,37 @@ static void mlx4_ib_multiplex_mad(struct mlx4_ib_demux_pv_ctx *ctx, struct ib_wc
* stadard address handle by decoding the tunnelled mlx4_ah fields */
memcpy(&ah.av, &tunnel->hdr.av, sizeof (struct mlx4_av));
ah.ibah.device = ctx->ib_dev;
- mlx4_ib_query_ah(&ah.ibah, &ah_attr);
- if ((ah_attr.ah_flags & IB_AH_GRH) &&
- (ah_attr.grh.sgid_index != slave)) {
- mlx4_ib_warn(ctx->ib_dev, "slave:%d accessed invalid sgid_index:%d\n",
- slave, ah_attr.grh.sgid_index);
+
+ port = be32_to_cpu(ah.av.ib.port_pd) >> 24;
+ port = mlx4_slave_convert_port(dev->dev, slave, port);
+ if (port < 0)
return;
- }
+ ah.av.ib.port_pd = cpu_to_be32(port << 24 | (be32_to_cpu(ah.av.ib.port_pd) & 0xffffff));
+ ah.ibah.type = rdma_ah_find_type(&dev->ib_dev, port);
- mlx4_ib_send_to_wire(dev, slave, ctx->port,
- is_proxy_qp0(dev, wc->src_qp, slave) ?
- IB_QPT_SMI : IB_QPT_GSI,
- be16_to_cpu(tunnel->hdr.pkey_index),
- be32_to_cpu(tunnel->hdr.remote_qpn),
- be32_to_cpu(tunnel->hdr.qkey),
- &ah_attr, &tunnel->mad);
+ mlx4_ib_query_ah(&ah.ibah, &ah_attr);
+ if (rdma_ah_get_ah_flags(&ah_attr) & IB_AH_GRH)
+ fill_in_real_sgid_index(dev, slave, ctx->port, &ah_attr);
+ dmac = rdma_ah_retrieve_dmac(&ah_attr);
+ if (dmac)
+ memcpy(dmac, tunnel->hdr.mac, ETH_ALEN);
+ vlan_id = be16_to_cpu(tunnel->hdr.vlan);
+ /* if slave have default vlan use it */
+ if (mlx4_get_slave_default_vlan(dev->dev, ctx->port, slave,
+ &vlan_id, &qos))
+ rdma_ah_set_sl(&ah_attr, qos);
+
+ sts = mlx4_ib_send_to_wire(dev, slave, ctx->port,
+ is_proxy_qp0(dev, wc->src_qp, slave) ?
+ IB_QPT_SMI : IB_QPT_GSI,
+ be16_to_cpu(tunnel->hdr.pkey_index),
+ be32_to_cpu(tunnel->hdr.remote_qpn),
+ be32_to_cpu(tunnel->hdr.qkey),
+ &ah_attr, wc->smac, vlan_id, &tunnel->mad);
+ if (sts)
+ pr_debug("failed sending %s to wire on behalf of slave %d (%d)\n",
+ is_proxy_qp0(dev, wc->src_qp, slave) ? "SMI" : "GSI",
+ slave, sts);
}
static int mlx4_ib_alloc_pv_bufs(struct mlx4_ib_demux_pv_ctx *ctx,
@@ -1282,18 +1605,20 @@ static int mlx4_ib_alloc_pv_bufs(struct mlx4_ib_demux_pv_ctx *ctx,
int i;
struct mlx4_ib_demux_pv_qp *tun_qp;
int rx_buf_size, tx_buf_size;
+ const int nmbr_bufs = is_tun ? MLX4_NUM_TUNNEL_BUFS : MLX4_NUM_WIRE_BUFS;
if (qp_type > IB_QPT_GSI)
return -EINVAL;
tun_qp = &ctx->qp[qp_type];
- tun_qp->ring = kzalloc(sizeof (struct mlx4_ib_buf) * MLX4_NUM_TUNNEL_BUFS,
+ tun_qp->ring = kcalloc(nmbr_bufs,
+ sizeof(struct mlx4_ib_buf),
GFP_KERNEL);
if (!tun_qp->ring)
return -ENOMEM;
- tun_qp->tx_ring = kcalloc(MLX4_NUM_TUNNEL_BUFS,
+ tun_qp->tx_ring = kcalloc(nmbr_bufs,
sizeof (struct mlx4_ib_tun_tx_buf),
GFP_KERNEL);
if (!tun_qp->tx_ring) {
@@ -1310,7 +1635,7 @@ static int mlx4_ib_alloc_pv_bufs(struct mlx4_ib_demux_pv_ctx *ctx,
tx_buf_size = sizeof (struct mlx4_mad_snd_buf);
}
- for (i = 0; i < MLX4_NUM_TUNNEL_BUFS; i++) {
+ for (i = 0; i < nmbr_bufs; i++) {
tun_qp->ring[i].addr = kmalloc(rx_buf_size, GFP_KERNEL);
if (!tun_qp->ring[i].addr)
goto err;
@@ -1318,9 +1643,13 @@ static int mlx4_ib_alloc_pv_bufs(struct mlx4_ib_demux_pv_ctx *ctx,
tun_qp->ring[i].addr,
rx_buf_size,
DMA_FROM_DEVICE);
+ if (ib_dma_mapping_error(ctx->ib_dev, tun_qp->ring[i].map)) {
+ kfree(tun_qp->ring[i].addr);
+ goto err;
+ }
}
- for (i = 0; i < MLX4_NUM_TUNNEL_BUFS; i++) {
+ for (i = 0; i < nmbr_bufs; i++) {
tun_qp->tx_ring[i].buf.addr =
kmalloc(tx_buf_size, GFP_KERNEL);
if (!tun_qp->tx_ring[i].buf.addr)
@@ -1330,6 +1659,11 @@ static int mlx4_ib_alloc_pv_bufs(struct mlx4_ib_demux_pv_ctx *ctx,
tun_qp->tx_ring[i].buf.addr,
tx_buf_size,
DMA_TO_DEVICE);
+ if (ib_dma_mapping_error(ctx->ib_dev,
+ tun_qp->tx_ring[i].buf.map)) {
+ kfree(tun_qp->tx_ring[i].buf.addr);
+ goto tx_err;
+ }
tun_qp->tx_ring[i].ah = NULL;
}
spin_lock_init(&tun_qp->tx_lock);
@@ -1346,9 +1680,7 @@ tx_err:
tx_buf_size, DMA_TO_DEVICE);
kfree(tun_qp->tx_ring[i].buf.addr);
}
- kfree(tun_qp->tx_ring);
- tun_qp->tx_ring = NULL;
- i = MLX4_NUM_TUNNEL_BUFS;
+ i = nmbr_bufs;
err:
while (i > 0) {
--i;
@@ -1356,6 +1688,8 @@ err:
rx_buf_size, DMA_FROM_DEVICE);
kfree(tun_qp->ring[i].addr);
}
+ kfree(tun_qp->tx_ring);
+ tun_qp->tx_ring = NULL;
kfree(tun_qp->ring);
tun_qp->ring = NULL;
return -ENOMEM;
@@ -1367,6 +1701,7 @@ static void mlx4_ib_free_pv_qp_bufs(struct mlx4_ib_demux_pv_ctx *ctx,
int i;
struct mlx4_ib_demux_pv_qp *tun_qp;
int rx_buf_size, tx_buf_size;
+ const int nmbr_bufs = is_tun ? MLX4_NUM_TUNNEL_BUFS : MLX4_NUM_WIRE_BUFS;
if (qp_type > IB_QPT_GSI)
return;
@@ -1381,18 +1716,18 @@ static void mlx4_ib_free_pv_qp_bufs(struct mlx4_ib_demux_pv_ctx *ctx,
}
- for (i = 0; i < MLX4_NUM_TUNNEL_BUFS; i++) {
+ for (i = 0; i < nmbr_bufs; i++) {
ib_dma_unmap_single(ctx->ib_dev, tun_qp->ring[i].map,
rx_buf_size, DMA_FROM_DEVICE);
kfree(tun_qp->ring[i].addr);
}
- for (i = 0; i < MLX4_NUM_TUNNEL_BUFS; i++) {
+ for (i = 0; i < nmbr_bufs; i++) {
ib_dma_unmap_single(ctx->ib_dev, tun_qp->tx_ring[i].buf.map,
tx_buf_size, DMA_TO_DEVICE);
kfree(tun_qp->tx_ring[i].buf.addr);
if (tun_qp->tx_ring[i].ah)
- ib_destroy_ah(tun_qp->tx_ring[i].ah);
+ rdma_destroy_ah(tun_qp->tx_ring[i].ah, 0);
}
kfree(tun_qp->tx_ring);
kfree(tun_qp->ring);
@@ -1421,11 +1756,8 @@ static void mlx4_ib_tunnel_comp_worker(struct work_struct *work)
"buf:%lld\n", wc.wr_id);
break;
case IB_WC_SEND:
- pr_debug("received tunnel send completion:"
- "wrid=0x%llx, status=0x%x\n",
- wc.wr_id, wc.status);
- ib_destroy_ah(tun_qp->tx_ring[wc.wr_id &
- (MLX4_NUM_TUNNEL_BUFS - 1)].ah);
+ rdma_destroy_ah(tun_qp->tx_ring[wc.wr_id &
+ (MLX4_NUM_TUNNEL_BUFS - 1)].ah, 0);
tun_qp->tx_ring[wc.wr_id & (MLX4_NUM_TUNNEL_BUFS - 1)].ah
= NULL;
spin_lock(&tun_qp->tx_lock);
@@ -1441,8 +1773,8 @@ static void mlx4_ib_tunnel_comp_worker(struct work_struct *work)
" status = %d, wrid = 0x%llx\n",
ctx->slave, wc.status, wc.wr_id);
if (!MLX4_TUN_IS_RECV(wc.wr_id)) {
- ib_destroy_ah(tun_qp->tx_ring[wc.wr_id &
- (MLX4_NUM_TUNNEL_BUFS - 1)].ah);
+ rdma_destroy_ah(tun_qp->tx_ring[wc.wr_id &
+ (MLX4_NUM_TUNNEL_BUFS - 1)].ah, 0);
tun_qp->tx_ring[wc.wr_id & (MLX4_NUM_TUNNEL_BUFS - 1)].ah
= NULL;
spin_lock(&tun_qp->tx_lock);
@@ -1470,6 +1802,7 @@ static int create_pv_sqp(struct mlx4_ib_demux_pv_ctx *ctx,
struct mlx4_ib_qp_tunnel_init_attr qp_init_attr;
struct ib_qp_attr attr;
int qp_attr_mask_INIT;
+ const int nmbr_bufs = create_tun ? MLX4_NUM_TUNNEL_BUFS : MLX4_NUM_WIRE_BUFS;
if (qp_type > IB_QPT_GSI)
return -EINVAL;
@@ -1480,8 +1813,8 @@ static int create_pv_sqp(struct mlx4_ib_demux_pv_ctx *ctx,
qp_init_attr.init_attr.send_cq = ctx->cq;
qp_init_attr.init_attr.recv_cq = ctx->cq;
qp_init_attr.init_attr.sq_sig_type = IB_SIGNAL_ALL_WR;
- qp_init_attr.init_attr.cap.max_send_wr = MLX4_NUM_TUNNEL_BUFS;
- qp_init_attr.init_attr.cap.max_recv_wr = MLX4_NUM_TUNNEL_BUFS;
+ qp_init_attr.init_attr.cap.max_send_wr = nmbr_bufs;
+ qp_init_attr.init_attr.cap.max_recv_wr = nmbr_bufs;
qp_init_attr.init_attr.cap.max_send_sge = 1;
qp_init_attr.init_attr.cap.max_recv_sge = 1;
if (create_tun) {
@@ -1503,16 +1836,22 @@ static int create_pv_sqp(struct mlx4_ib_demux_pv_ctx *ctx,
tun_qp->qp = ib_create_qp(ctx->pd, &qp_init_attr.init_attr);
if (IS_ERR(tun_qp->qp)) {
ret = PTR_ERR(tun_qp->qp);
+ pr_err("Couldn't create %s QP (%pe)\n",
+ create_tun ? "tunnel" : "special", tun_qp->qp);
tun_qp->qp = NULL;
- pr_err("Couldn't create %s QP (%d)\n",
- create_tun ? "tunnel" : "special", ret);
return ret;
}
memset(&attr, 0, sizeof attr);
attr.qp_state = IB_QPS_INIT;
- attr.pkey_index =
- to_mdev(ctx->ib_dev)->pkeys.virt2phys_pkey[ctx->slave][ctx->port - 1][0];
+ ret = 0;
+ if (create_tun)
+ ret = find_slave_port_pkey_ix(to_mdev(ctx->ib_dev), ctx->slave,
+ ctx->port, IB_DEFAULT_PKEY_FULL,
+ &attr.pkey_index);
+ if (ret || !create_tun)
+ attr.pkey_index =
+ to_mdev(ctx->ib_dev)->pkeys.virt2phys_pkey[ctx->slave][ctx->port - 1][0];
attr.qkey = IB_QP1_QKEY;
attr.port_num = ctx->port;
ret = ib_modify_qp(tun_qp->qp, &attr, qp_attr_mask_INIT);
@@ -1537,7 +1876,7 @@ static int create_pv_sqp(struct mlx4_ib_demux_pv_ctx *ctx,
goto err_qp;
}
- for (i = 0; i < MLX4_NUM_TUNNEL_BUFS; i++) {
+ for (i = 0; i < nmbr_bufs; i++) {
ret = mlx4_ib_post_pv_qp_buf(ctx, tun_qp, i);
if (ret) {
pr_err(" mlx4_ib_post_pv_buf error"
@@ -1572,9 +1911,9 @@ static void mlx4_ib_sqp_comp_worker(struct work_struct *work)
if (wc.status == IB_WC_SUCCESS) {
switch (wc.opcode) {
case IB_WC_SEND:
- ib_destroy_ah(sqp->tx_ring[wc.wr_id &
- (MLX4_NUM_TUNNEL_BUFS - 1)].ah);
- sqp->tx_ring[wc.wr_id & (MLX4_NUM_TUNNEL_BUFS - 1)].ah
+ kfree(sqp->tx_ring[wc.wr_id &
+ (MLX4_NUM_WIRE_BUFS - 1)].ah);
+ sqp->tx_ring[wc.wr_id & (MLX4_NUM_WIRE_BUFS - 1)].ah
= NULL;
spin_lock(&sqp->tx_lock);
sqp->tx_ix_tail++;
@@ -1583,18 +1922,17 @@ static void mlx4_ib_sqp_comp_worker(struct work_struct *work)
case IB_WC_RECV:
mad = (struct ib_mad *) &(((struct mlx4_mad_rcv_buf *)
(sqp->ring[wc.wr_id &
- (MLX4_NUM_TUNNEL_BUFS - 1)].addr))->payload);
+ (MLX4_NUM_WIRE_BUFS - 1)].addr))->payload);
grh = &(((struct mlx4_mad_rcv_buf *)
(sqp->ring[wc.wr_id &
- (MLX4_NUM_TUNNEL_BUFS - 1)].addr))->grh);
+ (MLX4_NUM_WIRE_BUFS - 1)].addr))->grh);
mlx4_ib_demux_mad(ctx->ib_dev, ctx->port, &wc, grh, mad);
if (mlx4_ib_post_pv_qp_buf(ctx, sqp, wc.wr_id &
- (MLX4_NUM_TUNNEL_BUFS - 1)))
+ (MLX4_NUM_WIRE_BUFS - 1)))
pr_err("Failed reposting SQP "
"buf:%lld\n", wc.wr_id);
break;
default:
- BUG_ON(1);
break;
}
} else {
@@ -1602,9 +1940,9 @@ static void mlx4_ib_sqp_comp_worker(struct work_struct *work)
" status = %d, wrid = 0x%llx\n",
ctx->slave, wc.status, wc.wr_id);
if (!MLX4_TUN_IS_RECV(wc.wr_id)) {
- ib_destroy_ah(sqp->tx_ring[wc.wr_id &
- (MLX4_NUM_TUNNEL_BUFS - 1)].ah);
- sqp->tx_ring[wc.wr_id & (MLX4_NUM_TUNNEL_BUFS - 1)].ah
+ kfree(sqp->tx_ring[wc.wr_id &
+ (MLX4_NUM_WIRE_BUFS - 1)].ah);
+ sqp->tx_ring[wc.wr_id & (MLX4_NUM_WIRE_BUFS - 1)].ah
= NULL;
spin_lock(&sqp->tx_lock);
sqp->tx_ix_tail++;
@@ -1621,11 +1959,8 @@ static int alloc_pv_object(struct mlx4_ib_dev *dev, int slave, int port,
*ret_ctx = NULL;
ctx = kzalloc(sizeof (struct mlx4_ib_demux_pv_ctx), GFP_KERNEL);
- if (!ctx) {
- pr_err("failed allocating pv resource context "
- "for port %d, slave %d\n", port, slave);
+ if (!ctx)
return -ENOMEM;
- }
ctx->ib_dev = &dev->ib_dev;
ctx->port = port;
@@ -1646,14 +1981,16 @@ static int create_pv_resources(struct ib_device *ibdev, int slave, int port,
int create_tun, struct mlx4_ib_demux_pv_ctx *ctx)
{
int ret, cq_size;
+ struct ib_cq_init_attr cq_attr = {};
+ const int nmbr_bufs = create_tun ? MLX4_NUM_TUNNEL_BUFS : MLX4_NUM_WIRE_BUFS;
if (ctx->state != DEMUX_PV_STATE_DOWN)
return -EEXIST;
ctx->state = DEMUX_PV_STATE_STARTING;
- /* have QP0 only on port owner, and only if link layer is IB */
- if (ctx->slave == mlx4_master_func_num(to_mdev(ctx->ib_dev)->dev) &&
- rdma_port_get_link_layer(ibdev, ctx->port) == IB_LINK_LAYER_INFINIBAND)
+ /* have QP0 only if link layer is IB */
+ if (rdma_port_get_link_layer(ibdev, ctx->port) ==
+ IB_LINK_LAYER_INFINIBAND)
ctx->has_smi = 1;
if (ctx->has_smi) {
@@ -1670,38 +2007,33 @@ static int create_pv_resources(struct ib_device *ibdev, int slave, int port,
goto err_out_qp0;
}
- cq_size = 2 * MLX4_NUM_TUNNEL_BUFS;
+ cq_size = 2 * nmbr_bufs;
if (ctx->has_smi)
cq_size *= 2;
- ctx->cq = ib_create_cq(ctx->ib_dev, mlx4_ib_tunnel_comp_handler,
- NULL, ctx, cq_size, 0);
+ cq_attr.cqe = cq_size;
+ ctx->cq = ib_create_cq(ctx->ib_dev,
+ create_tun ? mlx4_ib_tunnel_comp_handler : mlx4_ib_wire_comp_handler,
+ NULL, ctx, &cq_attr);
if (IS_ERR(ctx->cq)) {
ret = PTR_ERR(ctx->cq);
- pr_err("Couldn't create tunnel CQ (%d)\n", ret);
+ pr_err("Couldn't create tunnel CQ (%pe)\n", ctx->cq);
goto err_buf;
}
- ctx->pd = ib_alloc_pd(ctx->ib_dev);
+ ctx->pd = ib_alloc_pd(ctx->ib_dev, 0);
if (IS_ERR(ctx->pd)) {
ret = PTR_ERR(ctx->pd);
- pr_err("Couldn't create tunnel PD (%d)\n", ret);
+ pr_err("Couldn't create tunnel PD (%pe)\n", ctx->pd);
goto err_cq;
}
- ctx->mr = ib_get_dma_mr(ctx->pd, IB_ACCESS_LOCAL_WRITE);
- if (IS_ERR(ctx->mr)) {
- ret = PTR_ERR(ctx->mr);
- pr_err("Couldn't get tunnel DMA MR (%d)\n", ret);
- goto err_pd;
- }
-
if (ctx->has_smi) {
ret = create_pv_sqp(ctx, IB_QPT_SMI, create_tun);
if (ret) {
pr_err("Couldn't create %s QP0 (%d)\n",
create_tun ? "tunnel for" : "", ret);
- goto err_mr;
+ goto err_pd;
}
}
@@ -1718,6 +2050,7 @@ static int create_pv_resources(struct ib_device *ibdev, int slave, int port,
INIT_WORK(&ctx->work, mlx4_ib_sqp_comp_worker);
ctx->wq = to_mdev(ibdev)->sriov.demux[port - 1].wq;
+ ctx->wi_wq = to_mdev(ibdev)->sriov.demux[port - 1].wi_wq;
ret = ib_req_notify_cq(ctx->cq, IB_CQ_NEXT_COMP);
if (ret) {
@@ -1738,10 +2071,6 @@ err_qp0:
ib_destroy_qp(ctx->qp[0].qp);
ctx->qp[0].qp = NULL;
-err_mr:
- ib_dereg_mr(ctx->mr);
- ctx->mr = NULL;
-
err_pd:
ib_dealloc_pd(ctx->pd);
ctx->pd = NULL;
@@ -1778,8 +2107,6 @@ static void destroy_pv_resources(struct mlx4_ib_dev *dev, int slave, int port,
ib_destroy_qp(ctx->qp[1].qp);
ctx->qp[1].qp = NULL;
mlx4_ib_free_pv_qp_bufs(ctx, IB_QPT_GSI, 1);
- ib_dereg_mr(ctx->mr);
- ctx->mr = NULL;
ib_dealloc_pd(ctx->pd);
ctx->pd = NULL;
ib_destroy_cq(ctx->cq);
@@ -1831,7 +2158,6 @@ static int mlx4_ib_alloc_demux_ctx(struct mlx4_ib_dev *dev,
struct mlx4_ib_demux_ctx *ctx,
int port)
{
- char name[12];
int ret = 0;
int i;
@@ -1844,7 +2170,16 @@ static int mlx4_ib_alloc_demux_ctx(struct mlx4_ib_dev *dev,
ctx->port = port;
ctx->ib_dev = &dev->ib_dev;
- for (i = 0; i < dev->dev->caps.sqp_demux; i++) {
+ for (i = 0;
+ i < min(dev->dev->caps.sqp_demux,
+ (u16)(dev->dev->persist->num_vfs + 1));
+ i++) {
+ struct mlx4_active_ports actv_ports =
+ mlx4_get_active_ports(dev->dev, i);
+
+ if (!test_bit(port - 1, actv_ports.ports))
+ continue;
+
ret = alloc_pv_object(dev, i, port, &ctx->tun[i]);
if (ret) {
ret = -ENOMEM;
@@ -1858,16 +2193,21 @@ static int mlx4_ib_alloc_demux_ctx(struct mlx4_ib_dev *dev,
goto err_mcg;
}
- snprintf(name, sizeof name, "mlx4_ibt%d", port);
- ctx->wq = create_singlethread_workqueue(name);
+ ctx->wq = alloc_ordered_workqueue("mlx4_ibt%d", WQ_MEM_RECLAIM, port);
if (!ctx->wq) {
pr_err("Failed to create tunnelling WQ for port %d\n", port);
ret = -ENOMEM;
goto err_wq;
}
- snprintf(name, sizeof name, "mlx4_ibud%d", port);
- ctx->ud_wq = create_singlethread_workqueue(name);
+ ctx->wi_wq = alloc_ordered_workqueue("mlx4_ibwi%d", WQ_MEM_RECLAIM, port);
+ if (!ctx->wi_wq) {
+ pr_err("Failed to create wire WQ for port %d\n", port);
+ ret = -ENOMEM;
+ goto err_wiwq;
+ }
+
+ ctx->ud_wq = alloc_ordered_workqueue("mlx4_ibud%d", WQ_MEM_RECLAIM, port);
if (!ctx->ud_wq) {
pr_err("Failed to create up/down WQ for port %d\n", port);
ret = -ENOMEM;
@@ -1877,6 +2217,10 @@ static int mlx4_ib_alloc_demux_ctx(struct mlx4_ib_dev *dev,
return 0;
err_udwq:
+ destroy_workqueue(ctx->wi_wq);
+ ctx->wi_wq = NULL;
+
+err_wiwq:
destroy_workqueue(ctx->wq);
ctx->wq = NULL;
@@ -1903,8 +2247,6 @@ static void mlx4_ib_free_sqp_ctx(struct mlx4_ib_demux_pv_ctx *sqp_ctx)
ib_destroy_qp(sqp_ctx->qp[1].qp);
sqp_ctx->qp[1].qp = NULL;
mlx4_ib_free_pv_qp_bufs(sqp_ctx, IB_QPT_GSI, 0);
- ib_dereg_mr(sqp_ctx->mr);
- sqp_ctx->mr = NULL;
ib_dealloc_pd(sqp_ctx->pd);
sqp_ctx->pd = NULL;
ib_destroy_cq(sqp_ctx->cq);
@@ -1926,12 +2268,14 @@ static void mlx4_ib_free_demux_ctx(struct mlx4_ib_demux_ctx *ctx)
ctx->tun[i]->state = DEMUX_PV_STATE_DOWNING;
}
flush_workqueue(ctx->wq);
+ flush_workqueue(ctx->wi_wq);
for (i = 0; i < dev->dev->caps.sqp_demux; i++) {
destroy_pv_resources(dev, i, ctx->port, ctx->tun[i], 0);
free_pv_object(dev, i, ctx->port);
}
kfree(ctx->tun);
destroy_workqueue(ctx->ud_wq);
+ destroy_workqueue(ctx->wi_wq);
destroy_workqueue(ctx->wq);
}
}
@@ -1993,6 +2337,8 @@ int mlx4_ib_init_sriov(struct mlx4_ib_dev *dev)
if (err)
goto demux_err;
dev->sriov.demux[i].guid_cache[0] = gid.global.interface_id;
+ atomic64_set(&dev->sriov.demux[i].subnet_prefix,
+ be64_to_cpu(gid.global.subnet_prefix));
err = alloc_pv_object(dev, mlx4_master_func_num(dev->dev), i + 1,
&dev->sriov.sqps[i]);
if (err)
generated by cgit (git 2.34.1) at 2025-12-25 12:56:55 +0000