[dpdk-dev] [PATCH v4 08/10] bus/mlx5_pci: enable net and vDPA to use mlx5 PCI bus driver

[Parav Pandit <parav@mellanox.com>]

Enable class driver to match with the mlx5 pci devices.
Migrate mlx5 net PMD and vdpa PMD to start using mlx5 common class
driver.

Signed-off-by: Parav Pandit <parav@mellanox.com>
Acked-by: Matan Azrad <matan@mellanox.com>
---
Changelog:
v2->v3:
 - Avoid static table
v1->v2:
 - Migreate API from rte_driver to rte_pci_driver
---
 drivers/bus/Makefile             |  3 +++
 drivers/net/mlx5/Makefile        |  3 ++-
 drivers/net/mlx5/linux/mlx5_os.c |  1 -
 drivers/net/mlx5/linux/mlx5_os.h |  1 +
 drivers/net/mlx5/meson.build     |  2 +-
 drivers/net/mlx5/mlx5.c          | 24 ++++++++++++++----------
 drivers/net/mlx5/mlx5.h          |  1 -
 drivers/vdpa/mlx5/Makefile       |  3 ++-
 drivers/vdpa/mlx5/meson.build    |  2 +-
 drivers/vdpa/mlx5/mlx5_vdpa.c    | 23 +++++++++++++----------
 mk/rte.app.mk                    |  1 +
 11 files changed, 38 insertions(+), 26 deletions(-)

diff --git a/drivers/bus/Makefile b/drivers/bus/Makefile
index cea3b55e6..f96caa5ec 100644
--- a/drivers/bus/Makefile
+++ b/drivers/bus/Makefile
@@ -9,6 +9,9 @@ DIRS-$(CONFIG_RTE_LIBRTE_FSLMC_BUS) += fslmc
 endif
 DIRS-$(CONFIG_RTE_LIBRTE_IFPGA_BUS) += ifpga
 DIRS-$(CONFIG_RTE_LIBRTE_PCI_BUS) += pci
+ifeq ($(findstring y,$(CONFIG_RTE_LIBRTE_MLX5_PMD)$(CONFIG_RTE_LIBRTE_MLX5_VDPA_PMD)),y)
+DIRS-y += mlx5_pci
+endif
 DIRS-$(CONFIG_RTE_LIBRTE_VDEV_BUS) += vdev
 DIRS-$(CONFIG_RTE_LIBRTE_VMBUS) += vmbus
 
diff --git a/drivers/net/mlx5/Makefile b/drivers/net/mlx5/Makefile
index a458402dc..1cea7cd07 100644
--- a/drivers/net/mlx5/Makefile
+++ b/drivers/net/mlx5/Makefile
@@ -45,16 +45,17 @@ CFLAGS += -I$(RTE_SDK)/drivers/common/mlx5/linux
 CFLAGS += -I$(RTE_SDK)/drivers/net/mlx5
 CFLAGS += -I$(RTE_SDK)/drivers/net/mlx5/linux
 CFLAGS += -I$(BUILDDIR)/drivers/common/mlx5
+CFLAGS += -I$(RTE_SDK)/drivers/bus/mlx5_pci
 CFLAGS += -D_BSD_SOURCE
 CFLAGS += -D_DEFAULT_SOURCE
 CFLAGS += -D_XOPEN_SOURCE=600
 CFLAGS += $(WERROR_FLAGS)
 CFLAGS += -Wno-strict-prototypes
 LDLIBS += -lrte_common_mlx5
+LDLIBS += -lrte_bus_mlx5_pci
 LDLIBS += -lm
 LDLIBS += -lrte_eal -lrte_mbuf -lrte_mempool -lrte_ring
 LDLIBS += -lrte_ethdev -lrte_net -lrte_kvargs
-LDLIBS += -lrte_bus_pci
 
 # A few warnings cannot be avoided in external headers.
 CFLAGS += -Wno-error=cast-qual
diff --git a/drivers/net/mlx5/linux/mlx5_os.c b/drivers/net/mlx5/linux/mlx5_os.c
index 2dc57b20e..b6042b7ef 100644
--- a/drivers/net/mlx5/linux/mlx5_os.c
+++ b/drivers/net/mlx5/linux/mlx5_os.c
@@ -1321,7 +1321,6 @@ mlx5_os_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
 			strerror(rte_errno));
 		return -rte_errno;
 	}
-	MLX5_ASSERT(pci_drv == &mlx5_driver);
 	errno = 0;
 	ibv_list = mlx5_glue->get_device_list(&ret);
 	if (!ibv_list) {
diff --git a/drivers/net/mlx5/linux/mlx5_os.h b/drivers/net/mlx5/linux/mlx5_os.h
index 31add3988..695722520 100644
--- a/drivers/net/mlx5/linux/mlx5_os.h
+++ b/drivers/net/mlx5/linux/mlx5_os.h
@@ -15,4 +15,5 @@ enum {
 #define PCI_DRV_FLAGS  (RTE_PCI_DRV_INTR_LSC | \
 			RTE_PCI_DRV_INTR_RMV | \
 			RTE_PCI_DRV_PROBE_AGAIN)
+
 #endif /* RTE_PMD_MLX5_OS_H_ */
diff --git a/drivers/net/mlx5/meson.build b/drivers/net/mlx5/meson.build
index e95ce0267..26699a79b 100644
--- a/drivers/net/mlx5/meson.build
+++ b/drivers/net/mlx5/meson.build
@@ -8,7 +8,7 @@ if not (is_linux or is_windows)
 	subdir_done()
 endif
 
-deps += ['hash', 'common_mlx5']
+deps += ['hash', 'common_mlx5', 'bus_mlx5_pci']
 sources = files(
 	'mlx5.c',
 	'mlx5_ethdev.c',
diff --git a/drivers/net/mlx5/mlx5.c b/drivers/net/mlx5/mlx5.c
index bb10c63bb..2270055fe 100644
--- a/drivers/net/mlx5/mlx5.c
+++ b/drivers/net/mlx5/mlx5.c
@@ -34,6 +34,7 @@
 #include <rte_spinlock.h>
 #include <rte_string_fns.h>
 #include <rte_alarm.h>
+#include <rte_bus_mlx5_pci.h>
 
 #include <mlx5_glue.h>
 #include <mlx5_devx_cmds.h>
@@ -1892,16 +1893,19 @@ static const struct rte_pci_id mlx5_pci_id_map[] = {
 	}
 };
 
-struct rte_pci_driver mlx5_driver = {
-	.driver = {
-		.name = MLX5_DRIVER_NAME
+static struct rte_mlx5_pci_driver mlx5_driver = {
+	.dev_class = MLX5_CLASS_NET,
+	.pci_driver = {
+		.driver = {
+			.name = MLX5_DRIVER_NAME,
+		},
+		.id_table = mlx5_pci_id_map,
+		.probe = mlx5_os_pci_probe,
+		.remove = mlx5_pci_remove,
+		.dma_map = mlx5_dma_map,
+		.dma_unmap = mlx5_dma_unmap,
+		.drv_flags = PCI_DRV_FLAGS,
 	},
-	.id_table = mlx5_pci_id_map,
-	.probe = mlx5_os_pci_probe,
-	.remove = mlx5_pci_remove,
-	.dma_map = mlx5_dma_map,
-	.dma_unmap = mlx5_dma_unmap,
-	.drv_flags = PCI_DRV_FLAGS,
 };
 
 /**
@@ -1919,7 +1923,7 @@ RTE_INIT_PRIO(rte_mlx5_pmd_init, CLASS)
 	mlx5_set_cksum_table();
 	mlx5_set_swp_types_table();
 	if (mlx5_glue)
-		rte_pci_register(&mlx5_driver);
+		rte_mlx5_pci_driver_register(&mlx5_driver);
 }
 
 RTE_PMD_EXPORT_NAME(net_mlx5, __COUNTER__);
diff --git a/drivers/net/mlx5/mlx5.h b/drivers/net/mlx5/mlx5.h
index 46e66eb1c..df7b5eb87 100644
--- a/drivers/net/mlx5/mlx5.h
+++ b/drivers/net/mlx5/mlx5.h
@@ -129,7 +129,6 @@ struct mlx5_local_data {
 };
 
 extern struct mlx5_shared_data *mlx5_shared_data;
-extern struct rte_pci_driver mlx5_driver;
 
 /* Dev ops structs */
 extern const struct eth_dev_ops mlx5_os_dev_ops;
diff --git a/drivers/vdpa/mlx5/Makefile b/drivers/vdpa/mlx5/Makefile
index 8a1c2eab5..9bb5dfdbf 100644
--- a/drivers/vdpa/mlx5/Makefile
+++ b/drivers/vdpa/mlx5/Makefile
@@ -24,13 +24,14 @@ CFLAGS += -I$(RTE_SDK)/drivers/common/mlx5/linux
 CFLAGS += -I$(RTE_SDK)/drivers/net/mlx5_vdpa
 CFLAGS += -I$(RTE_SDK)/lib/librte_sched
 CFLAGS += -I$(BUILDDIR)/drivers/common/mlx5
+CFLAGS += -I$(RTE_SDK)/drivers/bus/mlx5_pci
 CFLAGS += -D_BSD_SOURCE
 CFLAGS += -D_DEFAULT_SOURCE
 CFLAGS += -D_XOPEN_SOURCE=600
 CFLAGS += $(WERROR_FLAGS)
 CFLAGS += -Wno-strict-prototypes
 LDLIBS += -lrte_common_mlx5
-LDLIBS += -lrte_eal -lrte_vhost -lrte_kvargs -lrte_pci -lrte_bus_pci -lrte_sched
+LDLIBS += -lrte_eal -lrte_vhost -lrte_kvargs -lrte_pci -lrte_bus_mlx5_pci -lrte_sched
 LDLIBS += -pthread
 
 # A few warnings cannot be avoided in external headers.
diff --git a/drivers/vdpa/mlx5/meson.build b/drivers/vdpa/mlx5/meson.build
index 2963aad71..f4175c34e 100644
--- a/drivers/vdpa/mlx5/meson.build
+++ b/drivers/vdpa/mlx5/meson.build
@@ -8,7 +8,7 @@ if not is_linux
 endif
 
 fmt_name = 'mlx5_vdpa'
-deps += ['hash', 'common_mlx5', 'vhost', 'pci', 'bus_pci', 'eal', 'sched']
+deps += ['hash', 'common_mlx5', 'vhost', 'pci', 'bus_mlx5_pci', 'eal', 'sched']
 sources = files(
 	'mlx5_vdpa.c',
 	'mlx5_vdpa_mem.c',
diff --git a/drivers/vdpa/mlx5/mlx5_vdpa.c b/drivers/vdpa/mlx5/mlx5_vdpa.c
index f043166ef..09c9cb935 100644
--- a/drivers/vdpa/mlx5/mlx5_vdpa.c
+++ b/drivers/vdpa/mlx5/mlx5_vdpa.c
@@ -11,7 +11,7 @@
 #include <rte_malloc.h>
 #include <rte_log.h>
 #include <rte_errno.h>
-#include <rte_bus_pci.h>
+#include <rte_bus_mlx5_pci.h>
 #include <rte_pci.h>
 #include <rte_string_fns.h>
 
@@ -657,7 +657,7 @@ mlx5_vdpa_config_get(struct rte_devargs *devargs, struct mlx5_vdpa_priv *priv)
 }
 
 /**
- * DPDK callback to register a PCI device.
+ * DPDK callback to register a mlx5 PCI bus device.
  *
  * This function spawns vdpa device out of a given PCI device.
  *
@@ -829,14 +829,17 @@ static const struct rte_pci_id mlx5_vdpa_pci_id_map[] = {
 	}
 };
 
-static struct rte_pci_driver mlx5_vdpa_driver = {
-	.driver = {
-		.name = "mlx5_vdpa",
+static struct rte_mlx5_pci_driver mlx5_vdpa_driver = {
+	.dev_class = MLX5_CLASS_VDPA,
+	.pci_driver = {
+		.driver = {
+			.name = "mlx5_vdpa",
+		},
+		.id_table = mlx5_vdpa_pci_id_map,
+		.probe = mlx5_vdpa_pci_probe,
+		.remove = mlx5_vdpa_pci_remove,
+		.drv_flags = 0,
 	},
-	.id_table = mlx5_vdpa_pci_id_map,
-	.probe = mlx5_vdpa_pci_probe,
-	.remove = mlx5_vdpa_pci_remove,
-	.drv_flags = 0,
 };
 
 /**
@@ -849,7 +852,7 @@ RTE_INIT_PRIO(rte_mlx5_vdpa_init, CLASS)
 	if (mlx5_vdpa_logtype >= 0)
 		rte_log_set_level(mlx5_vdpa_logtype, RTE_LOG_NOTICE);
 	if (mlx5_glue)
-		rte_pci_register(&mlx5_vdpa_driver);
+		rte_mlx5_pci_driver_register(&mlx5_vdpa_driver);
 }
 
 RTE_PMD_EXPORT_NAME(net_mlx5_vdpa, __COUNTER__);
diff --git a/mk/rte.app.mk b/mk/rte.app.mk
index 0ce8cf541..d7c1d90e4 100644
--- a/mk/rte.app.mk
+++ b/mk/rte.app.mk
@@ -203,6 +203,7 @@ _LDLIBS-$(CONFIG_RTE_LIBRTE_PMD_MEMIF)      += -lrte_pmd_memif
 _LDLIBS-$(CONFIG_RTE_LIBRTE_MLX4_PMD)       += -lrte_pmd_mlx4
 ifeq ($(findstring y,$(CONFIG_RTE_LIBRTE_MLX5_PMD)$(CONFIG_RTE_LIBRTE_MLX5_VDPA_PMD)),y)
 _LDLIBS-y                                   += -lrte_common_mlx5
+_LDLIBS-y                                   += -lrte_bus_mlx5_pci
 endif
 _LDLIBS-$(CONFIG_RTE_LIBRTE_MLX5_PMD)       += -lrte_pmd_mlx5
 _LDLIBS-$(CONFIG_RTE_LIBRTE_MLX5_VDPA_PMD)  += -lrte_pmd_mlx5_vdpa
-- 
2.26.2