From 74d4943fbb8c2fd32440a0bb4a6a01290d15709b Mon Sep 17 00:00:00 2001 From: Or Gerlitz Date: Thu, 21 May 2015 15:14:07 +0300 Subject: [PATCH] net/mlx4_core: Modify port values when generting EQEs for VFs As part of enabling single ported VFs over IB ports we need to handle some of the flows for generting EQ events for VFs which don't come into play under Eth ports. This mainly includes port management events derived from changes of the phyiscal port (lid change, client re-register, down/up, etc), VF pkey table changes and VF guid changes initiated by the IB driver. (1) make sure that events are generated only for VFs sitting on the relevant physical port (under the ALL_SLAVES flow). (2) before generating the event, convert from physical (one or two) to VF port (always equals one). Signed-off-by: Or Gerlitz Signed-off-by: Jack Morgenstein Signed-off-by: David S. Miller --- drivers/infiniband/hw/mlx4/alias_GUID.c | 7 ++++++- drivers/net/ethernet/mellanox/mlx4/eq.c | 24 ++++++++++++++++++++---- 2 files changed, 26 insertions(+), 5 deletions(-) diff --git a/drivers/infiniband/hw/mlx4/alias_GUID.c b/drivers/infiniband/hw/mlx4/alias_GUID.c index 0f00204d2ece..21cb41a60fe8 100644 --- a/drivers/infiniband/hw/mlx4/alias_GUID.c +++ b/drivers/infiniband/hw/mlx4/alias_GUID.c @@ -189,7 +189,7 @@ void mlx4_ib_notify_slaves_on_guid_change(struct mlx4_ib_dev *dev, { int i; u64 guid_indexes; - int slave_id; + int slave_id, slave_port; enum slave_port_state new_state; enum slave_port_state prev_state; __be64 tmp_cur_ag, form_cache_ag; @@ -217,6 +217,11 @@ void mlx4_ib_notify_slaves_on_guid_change(struct mlx4_ib_dev *dev, slave_id = (block_num * NUM_ALIAS_GUID_IN_REC) + i ; if (slave_id >= dev->dev->persist->num_vfs + 1) return; + + slave_port = mlx4_phys_to_slave_port(dev->dev, slave_id, port_num); + if (slave_port < 0) /* this port isn't available for the VF */ + continue; + tmp_cur_ag = *(__be64 *)&p_data[i * GUID_REC_SIZE]; form_cache_ag = get_cached_alias_guid(dev, port_num, (NUM_ALIAS_GUID_IN_REC * block_num) + i); diff --git a/drivers/net/ethernet/mellanox/mlx4/eq.c b/drivers/net/ethernet/mellanox/mlx4/eq.c index 2619c9fbf42d..80bcd648c5e0 100644 --- a/drivers/net/ethernet/mellanox/mlx4/eq.c +++ b/drivers/net/ethernet/mellanox/mlx4/eq.c @@ -145,7 +145,7 @@ void mlx4_gen_slave_eqe(struct work_struct *work) struct mlx4_slave_event_eq *slave_eq = &mfunc->master.slave_eq; struct mlx4_eqe *eqe; u8 slave; - int i; + int i, phys_port, slave_port; for (eqe = next_slave_event_eqe(slave_eq); eqe; eqe = next_slave_event_eqe(slave_eq)) { @@ -154,9 +154,20 @@ void mlx4_gen_slave_eqe(struct work_struct *work) /* All active slaves need to receive the event */ if (slave == ALL_SLAVES) { for (i = 0; i <= dev->persist->num_vfs; i++) { + phys_port = 0; + if (eqe->type == MLX4_EVENT_TYPE_PORT_MNG_CHG_EVENT && + eqe->subtype == MLX4_DEV_PMC_SUBTYPE_PORT_INFO) { + phys_port = eqe->event.port_mgmt_change.port; + slave_port = mlx4_phys_to_slave_port(dev, i, phys_port); + if (slave_port < 0) /* VF doesn't have this port */ + continue; + eqe->event.port_mgmt_change.port = slave_port; + } if (mlx4_GEN_EQE(dev, i, eqe)) mlx4_warn(dev, "Failed to generate event for slave %d\n", i); + if (phys_port) + eqe->event.port_mgmt_change.port = phys_port; } } else { if (mlx4_GEN_EQE(dev, slave, eqe)) @@ -224,7 +235,7 @@ int mlx4_gen_pkey_eqe(struct mlx4_dev *dev, int slave, u8 port) eqe.type = MLX4_EVENT_TYPE_PORT_MNG_CHG_EVENT; eqe.subtype = MLX4_DEV_PMC_SUBTYPE_PKEY_TABLE; - eqe.event.port_mgmt_change.port = port; + eqe.event.port_mgmt_change.port = mlx4_phys_to_slave_port(dev, slave, port); return mlx4_GEN_EQE(dev, slave, &eqe); } @@ -241,7 +252,7 @@ int mlx4_gen_guid_change_eqe(struct mlx4_dev *dev, int slave, u8 port) eqe.type = MLX4_EVENT_TYPE_PORT_MNG_CHG_EVENT; eqe.subtype = MLX4_DEV_PMC_SUBTYPE_GUID_INFO; - eqe.event.port_mgmt_change.port = port; + eqe.event.port_mgmt_change.port = mlx4_phys_to_slave_port(dev, slave, port); return mlx4_GEN_EQE(dev, slave, &eqe); } @@ -251,6 +262,7 @@ int mlx4_gen_port_state_change_eqe(struct mlx4_dev *dev, int slave, u8 port, u8 port_subtype_change) { struct mlx4_eqe eqe; + u8 slave_port = mlx4_phys_to_slave_port(dev, slave, port); /*don't send if we don't have the that slave */ if (dev->persist->num_vfs < slave) @@ -259,7 +271,7 @@ int mlx4_gen_port_state_change_eqe(struct mlx4_dev *dev, int slave, u8 port, eqe.type = MLX4_EVENT_TYPE_PORT_CHANGE; eqe.subtype = port_subtype_change; - eqe.event.port_change.port = cpu_to_be32(port << 28); + eqe.event.port_change.port = cpu_to_be32(slave_port << 28); mlx4_dbg(dev, "%s: sending: %d to slave: %d on port: %d\n", __func__, port_subtype_change, slave, port); @@ -589,6 +601,10 @@ static int mlx4_eq_int(struct mlx4_dev *dev, struct mlx4_eq *eq) if (SLAVE_PORT_GEN_EVENT_DOWN == gen_event) { if (i == mlx4_master_func_num(dev)) continue; + eqe->event.port_change.port = + cpu_to_be32( + (be32_to_cpu(eqe->event.port_change.port) & 0xFFFFFFF) + | (mlx4_phys_to_slave_port(dev, i, port) << 28)); mlx4_slave_event(dev, i, eqe); } } -- 2.30.2