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Message-Id: <20190613064639.30898-3-leon@kernel.org>
Date: Thu, 13 Jun 2019 09:46:29 +0300
From: Leon Romanovsky <leon@...nel.org>
To: Doug Ledford <dledford@...hat.com>,
Jason Gunthorpe <jgg@...lanox.com>
Cc: Leon Romanovsky <leonro@...lanox.com>,
RDMA mailing list <linux-rdma@...r.kernel.org>,
Saeed Mahameed <saeedm@...lanox.com>,
Yishai Hadas <yishaih@...lanox.com>,
linux-netdev <netdev@...r.kernel.org>
Subject: [PATCH mlx5-next 02/12] net/mlx5: Use event mask based on device capabilities
From: Yishai Hadas <yishaih@...lanox.com>
Use the reported device capabilities for the supported user events (i.e.
affiliated and un-affiliated) to set the EQ mask.
As the event mask can be up to 256 defined by 4 entries of u64 change
the applicable code to work accordingly.
Signed-off-by: Yishai Hadas <yishaih@...lanox.com>
Reviewed-by: Saeed Mahameed <saeedm@...lanox.com>
Signed-off-by: Leon Romanovsky <leonro@...lanox.com>
---
drivers/infiniband/hw/mlx5/odp.c | 3 +-
drivers/net/ethernet/mellanox/mlx5/core/eq.c | 43 ++++++++++++++++----
drivers/net/ethernet/mellanox/mlx5/core/fw.c | 6 +++
include/linux/mlx5/device.h | 6 ++-
include/linux/mlx5/eq.h | 2 +-
include/linux/mlx5/mlx5_ifc.h | 13 ++++--
6 files changed, 59 insertions(+), 14 deletions(-)
diff --git a/drivers/infiniband/hw/mlx5/odp.c b/drivers/infiniband/hw/mlx5/odp.c
index 1bf7881aed59..caa10a338668 100644
--- a/drivers/infiniband/hw/mlx5/odp.c
+++ b/drivers/infiniband/hw/mlx5/odp.c
@@ -1556,11 +1556,12 @@ mlx5_ib_create_pf_eq(struct mlx5_ib_dev *dev, struct mlx5_ib_pf_eq *eq)
param = (struct mlx5_eq_param) {
.index = MLX5_EQ_PFAULT_IDX,
- .mask = 1 << MLX5_EVENT_TYPE_PAGE_FAULT,
.nent = MLX5_IB_NUM_PF_EQE,
.context = eq,
.handler = mlx5_ib_eq_pf_int
};
+
+ param.mask[0] = 1ull << MLX5_EVENT_TYPE_PAGE_FAULT;
eq->core = mlx5_eq_create_generic(dev->mdev, "mlx5_ib_page_fault_eq", ¶m);
if (IS_ERR(eq->core)) {
err = PTR_ERR(eq->core);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eq.c b/drivers/net/ethernet/mellanox/mlx5/core/eq.c
index 7c4213147541..696a0fdd075a 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eq.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eq.c
@@ -261,6 +261,7 @@ create_map_eq(struct mlx5_core_dev *dev, struct mlx5_eq *eq, const char *name,
int inlen;
u32 *in;
int err;
+ int i;
if (eq_table->irq_info[vecidx].context)
return -EEXIST;
@@ -291,10 +292,12 @@ create_map_eq(struct mlx5_core_dev *dev, struct mlx5_eq *eq, const char *name,
mlx5_fill_page_array(&eq->buf, pas);
MLX5_SET(create_eq_in, in, opcode, MLX5_CMD_OP_CREATE_EQ);
- if (!param->mask && MLX5_CAP_GEN(dev, log_max_uctx))
+ if (!param->mask[0] && MLX5_CAP_GEN(dev, log_max_uctx))
MLX5_SET(create_eq_in, in, uid, MLX5_SHARED_RESOURCE_UID);
- MLX5_SET64(create_eq_in, in, event_bitmask, param->mask);
+ for (i = 0; i < 4; i++)
+ MLX5_ARRAY_SET64(create_eq_in, in, event_bitmask, i,
+ param->mask[i]);
eqc = MLX5_ADDR_OF(create_eq_in, in, eq_context_entry);
MLX5_SET(eqc, eqc, log_eq_size, ilog2(eq->nent));
@@ -498,10 +501,32 @@ static int cq_err_event_notifier(struct notifier_block *nb,
return NOTIFY_OK;
}
-static u64 gather_async_events_mask(struct mlx5_core_dev *dev)
+static void gather_async_events_from_cap(struct mlx5_core_dev *dev,
+ u64 mask[4])
+{
+ __be64 *user_unaffiliated_events;
+ __be64 *user_affiliated_events;
+ int i;
+
+ user_affiliated_events =
+ MLX5_CAP_DEV_EVENT(dev, user_affiliated_events);
+ user_unaffiliated_events =
+ MLX5_CAP_DEV_EVENT(dev, user_unaffiliated_events);
+
+ for (i = 0; i < 4; i++)
+ mask[i] = be64_to_cpu(user_affiliated_events[i] |
+ user_unaffiliated_events[i]);
+}
+
+static void gather_async_events_mask(struct mlx5_core_dev *dev, u64 mask[4])
{
u64 async_event_mask = MLX5_ASYNC_EVENT_MASK;
+ if (MLX5_CAP_GEN(dev, event_cap)) {
+ gather_async_events_from_cap(dev, mask);
+ return;
+ }
+
if (MLX5_VPORT_MANAGER(dev))
async_event_mask |= (1ull << MLX5_EVENT_TYPE_NIC_VPORT_CHANGE);
@@ -534,7 +559,7 @@ static u64 gather_async_events_mask(struct mlx5_core_dev *dev)
if (mlx5_core_is_ecpf_esw_manager(dev))
async_event_mask |= (1ull << MLX5_EVENT_TYPE_HOST_PARAMS_CHANGE);
- return async_event_mask;
+ mask[0] = async_event_mask;
}
static int create_async_eqs(struct mlx5_core_dev *dev)
@@ -548,11 +573,12 @@ static int create_async_eqs(struct mlx5_core_dev *dev)
param = (struct mlx5_eq_param) {
.index = MLX5_EQ_CMD_IDX,
- .mask = 1ull << MLX5_EVENT_TYPE_CMD,
.nent = MLX5_NUM_CMD_EQE,
.context = &table->cmd_eq,
.handler = mlx5_eq_async_int,
};
+
+ param.mask[0] = 1ull << MLX5_EVENT_TYPE_CMD;
err = create_async_eq(dev, "mlx5_cmd_eq", &table->cmd_eq, ¶m);
if (err) {
mlx5_core_warn(dev, "failed to create cmd EQ %d\n", err);
@@ -563,11 +589,12 @@ static int create_async_eqs(struct mlx5_core_dev *dev)
param = (struct mlx5_eq_param) {
.index = MLX5_EQ_ASYNC_IDX,
- .mask = gather_async_events_mask(dev),
.nent = MLX5_NUM_ASYNC_EQE,
.context = &table->async_eq,
.handler = mlx5_eq_async_int,
};
+
+ gather_async_events_mask(dev, param.mask);
err = create_async_eq(dev, "mlx5_async_eq", &table->async_eq, ¶m);
if (err) {
mlx5_core_warn(dev, "failed to create async EQ %d\n", err);
@@ -576,11 +603,12 @@ static int create_async_eqs(struct mlx5_core_dev *dev)
param = (struct mlx5_eq_param) {
.index = MLX5_EQ_PAGEREQ_IDX,
- .mask = 1 << MLX5_EVENT_TYPE_PAGE_REQUEST,
.nent = /* TODO: sriov max_vf + */ 1,
.context = &table->pages_eq,
.handler = mlx5_eq_async_int,
};
+
+ param.mask[0] = 1ull << MLX5_EVENT_TYPE_PAGE_REQUEST;
err = create_async_eq(dev, "mlx5_pages_eq", &table->pages_eq, ¶m);
if (err) {
mlx5_core_warn(dev, "failed to create pages EQ %d\n", err);
@@ -837,7 +865,6 @@ static int create_comp_eqs(struct mlx5_core_dev *dev)
snprintf(name, MLX5_MAX_IRQ_NAME, "mlx5_comp%d", i);
param = (struct mlx5_eq_param) {
.index = vecidx,
- .mask = 0,
.nent = nent,
.context = &eq->core,
.handler = mlx5_eq_comp_int
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fw.c b/drivers/net/ethernet/mellanox/mlx5/core/fw.c
index 1ab6f7e3bec6..05367f15c3a7 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/fw.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/fw.c
@@ -202,6 +202,12 @@ int mlx5_query_hca_caps(struct mlx5_core_dev *dev)
return err;
}
+ if (MLX5_CAP_GEN(dev, event_cap)) {
+ err = mlx5_core_get_caps(dev, MLX5_CAP_DEV_EVENT);
+ if (err)
+ return err;
+ }
+
return 0;
}
diff --git a/include/linux/mlx5/device.h b/include/linux/mlx5/device.h
index fc2b6e807f06..373a1b650a01 100644
--- a/include/linux/mlx5/device.h
+++ b/include/linux/mlx5/device.h
@@ -351,7 +351,7 @@ enum mlx5_event {
MLX5_EVENT_TYPE_DEVICE_TRACER = 0x26,
- MLX5_EVENT_TYPE_MAX = MLX5_EVENT_TYPE_DEVICE_TRACER + 1,
+ MLX5_EVENT_TYPE_MAX = 0x100,
};
enum {
@@ -1077,6 +1077,7 @@ enum mlx5_cap_type {
MLX5_CAP_DEBUG,
MLX5_CAP_RESERVED_14,
MLX5_CAP_DEV_MEM,
+ MLX5_CAP_DEV_EVENT = 0x14,
/* NUM OF CAP Types */
MLX5_CAP_NUM
};
@@ -1255,6 +1256,9 @@ enum mlx5_qcam_feature_groups {
#define MLX5_CAP64_DEV_MEM(mdev, cap)\
MLX5_GET64(device_mem_cap, mdev->caps.hca_cur[MLX5_CAP_DEV_MEM], cap)
+#define MLX5_CAP_DEV_EVENT(mdev, cap)\
+ MLX5_ADDR_OF(device_event_cap, (mdev)->caps.hca_cur[MLX5_CAP_DEV_EVENT], cap)
+
enum {
MLX5_CMD_STAT_OK = 0x0,
MLX5_CMD_STAT_INT_ERR = 0x1,
diff --git a/include/linux/mlx5/eq.h b/include/linux/mlx5/eq.h
index 00045cc4ea11..98152f799ecd 100644
--- a/include/linux/mlx5/eq.h
+++ b/include/linux/mlx5/eq.h
@@ -25,7 +25,7 @@ struct mlx5_core_dev;
struct mlx5_eq_param {
u8 index;
int nent;
- u64 mask;
+ u64 mask[4];
void *context;
irq_handler_t handler;
};
diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h
index 9c9979cf0fd5..24a814b445bb 100644
--- a/include/linux/mlx5/mlx5_ifc.h
+++ b/include/linux/mlx5/mlx5_ifc.h
@@ -818,6 +818,12 @@ struct mlx5_ifc_device_mem_cap_bits {
u8 reserved_at_180[0x680];
};
+struct mlx5_ifc_device_event_cap_bits {
+ u8 user_affiliated_events[4][0x40];
+
+ u8 user_unaffiliated_events[4][0x40];
+};
+
enum {
MLX5_ATOMIC_CAPS_ATOMIC_SIZE_QP_1_BYTE = 0x0,
MLX5_ATOMIC_CAPS_ATOMIC_SIZE_QP_2_BYTES = 0x2,
@@ -975,7 +981,8 @@ struct mlx5_ifc_cmd_hca_cap_bits {
u8 log_max_srq_sz[0x8];
u8 log_max_qp_sz[0x8];
- u8 reserved_at_90[0x8];
+ u8 event_cap[0x1];
+ u8 reserved_at_91[0x7];
u8 prio_tag_required[0x1];
u8 reserved_at_99[0x2];
u8 log_max_qp[0x5];
@@ -7357,9 +7364,9 @@ struct mlx5_ifc_create_eq_in_bits {
u8 reserved_at_280[0x40];
- u8 event_bitmask[0x40];
+ u8 event_bitmask[4][0x40];
- u8 reserved_at_300[0x580];
+ u8 reserved_at_3c0[0x4c0];
u8 pas[0][0x40];
};
--
2.20.1
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