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Merge branch 'mlx5-next' of git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux

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This merge commit includes some misc shared code updates from mlx5-next branch needed
for net-next.

1) From Maxim, Remove un-used macros and spinlock from mlx5 code.

2) From Aya, Expose Management PCIE info register layout and add rate limit
print macros.

3) From Tariq, Compilation warning fix in fs_core.c

4) From Vu, Huy and Saeed, Improve mlx5 initialization flow:
The goal is to provide a better logical separation of mlx5 core
device initialization flow and will help to seamlessly support
creating different mlx5 device types such as PF, VF and SF
mlx5 sub-function virtual devices.

Mlx5_core driver needs to separate HCA resources from pci resources.
Its initialize/load/unload will be broken into stages:
1. Initialize common data structures
2. Setup function which initializes pci resources (for PF/VF)
   or some other specific resources for virtual device
3. Initialize software objects according to hardware capabilities
4. Load all mlx5_core components

It is also necessary to detach mlx5_core mdev name/message from pci
device mdev->pdev name/message for a clearer report/debug of
different mlx5 device types.

Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
This commit is contained in:
Saeed Mahameed
2019-04-02 15:43:45 -07:00
parent 3eed52842b aef6c443fe
commit b6460c72c3
18 changed files with 407 additions and 324 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
include/linux/mlx5/cq.h
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@@ -170,7 +170,7 @@ static inline void mlx5_cq_arm(struct mlx5_core_cq *cq, u32 cmd,
doorbell[0] = cpu_to_be32(sn << 28 | cmd | ci);
doorbell[1] = cpu_to_be32(cq->cqn);
mlx5_write64(doorbell, uar_page + MLX5_CQ_DOORBELL, NULL);
mlx5_write64(doorbell, uar_page + MLX5_CQ_DOORBELL);
}
static inline void mlx5_cq_hold(struct mlx5_core_cq *cq)

39
include/linux/mlx5/doorbell.h
View File

@@ -36,46 +36,25 @@
#define MLX5_BF_OFFSET 0x800
#define MLX5_CQ_DOORBELL 0x20
#if BITS_PER_LONG == 64
/* Assume that we can just write a 64-bit doorbell atomically. s390
* actually doesn't have writeq() but S/390 systems don't even have
* PCI so we won't worry about it.
*
* Note that the write is not atomic on 32-bit systems! In contrast to 64-bit
* ones, it requires proper locking. mlx5_write64 doesn't do any locking, so use
* it at your own discretion, protected by some kind of lock on 32 bits.
*
* TODO: use write{q,l}_relaxed()
*/
#define MLX5_DECLARE_DOORBELL_LOCK(name)
#define MLX5_INIT_DOORBELL_LOCK(ptr) do { } while (0)
#define MLX5_GET_DOORBELL_LOCK(ptr) (NULL)
static inline void mlx5_write64(__be32 val[2], void __iomem *dest,
spinlock_t *doorbell_lock)
static inline void mlx5_write64(__be32 val[2], void __iomem *dest)
{
#if BITS_PER_LONG == 64
__raw_writeq(*(u64 *)val, dest);
}
#else
/* Just fall back to a spinlock to protect the doorbell if
* BITS_PER_LONG is 32 -- there's no portable way to do atomic 64-bit
* MMIO writes.
*/
#define MLX5_DECLARE_DOORBELL_LOCK(name) spinlock_t name;
#define MLX5_INIT_DOORBELL_LOCK(ptr) spin_lock_init(ptr)
#define MLX5_GET_DOORBELL_LOCK(ptr) (ptr)
static inline void mlx5_write64(__be32 val[2], void __iomem *dest,
spinlock_t *doorbell_lock)
{
unsigned long flags;
if (doorbell_lock)
spin_lock_irqsave(doorbell_lock, flags);
__raw_writel((__force u32) val[0], dest);
__raw_writel((__force u32) val[1], dest + 4);
if (doorbell_lock)
spin_unlock_irqrestore(doorbell_lock, flags);
#endif
}
#endif
#endif /* MLX5_DOORBELL_H */

3
include/linux/mlx5/driver.h
View File

@@ -133,6 +133,7 @@ enum {
MLX5_REG_MTRC_CONF = 0x9041,
MLX5_REG_MTRC_STDB = 0x9042,
MLX5_REG_MTRC_CTRL = 0x9043,
MLX5_REG_MPEIN = 0x9050,
MLX5_REG_MPCNT = 0x9051,
MLX5_REG_MTPPS = 0x9053,
MLX5_REG_MTPPSE = 0x9054,
@@ -660,6 +661,7 @@ struct mlx5_core_dev {
u64 sys_image_guid;
phys_addr_t iseg_base;
struct mlx5_init_seg __iomem *iseg;
phys_addr_t bar_addr;
enum mlx5_device_state state;
/* sync interface state */
struct mutex intf_state_mutex;
@@ -885,6 +887,7 @@ void mlx5_cmd_mbox_status(void *out, u8 *status, u32 *syndrome);
int mlx5_core_get_caps(struct mlx5_core_dev *dev, enum mlx5_cap_type cap_type);
int mlx5_cmd_alloc_uar(struct mlx5_core_dev *dev, u32 *uarn);
int mlx5_cmd_free_uar(struct mlx5_core_dev *dev, u32 uarn);
void mlx5_health_flush(struct mlx5_core_dev *dev);
void mlx5_health_cleanup(struct mlx5_core_dev *dev);
int mlx5_health_init(struct mlx5_core_dev *dev);
void mlx5_start_health_poll(struct mlx5_core_dev *dev);

51
include/linux/mlx5/mlx5_ifc.h
View File

@@ -8027,6 +8027,52 @@ struct mlx5_ifc_ppcnt_reg_bits {
union mlx5_ifc_eth_cntrs_grp_data_layout_auto_bits counter_set;
};
struct mlx5_ifc_mpein_reg_bits {
u8 reserved_at_0[0x2];
u8 depth[0x6];
u8 pcie_index[0x8];
u8 node[0x8];
u8 reserved_at_18[0x8];
u8 capability_mask[0x20];
u8 reserved_at_40[0x8];
u8 link_width_enabled[0x8];
u8 link_speed_enabled[0x10];
u8 lane0_physical_position[0x8];
u8 link_width_active[0x8];
u8 link_speed_active[0x10];
u8 num_of_pfs[0x10];
u8 num_of_vfs[0x10];
u8 bdf0[0x10];
u8 reserved_at_b0[0x10];
u8 max_read_request_size[0x4];
u8 max_payload_size[0x4];
u8 reserved_at_c8[0x5];
u8 pwr_status[0x3];
u8 port_type[0x4];
u8 reserved_at_d4[0xb];
u8 lane_reversal[0x1];
u8 reserved_at_e0[0x14];
u8 pci_power[0xc];
u8 reserved_at_100[0x20];
u8 device_status[0x10];
u8 port_state[0x8];
u8 reserved_at_138[0x8];
u8 reserved_at_140[0x10];
u8 receiver_detect_result[0x10];
u8 reserved_at_160[0x20];
};
struct mlx5_ifc_mpcnt_reg_bits {
u8 reserved_at_0[0x8];
u8 pcie_index[0x8];
@@ -8346,7 +8392,9 @@ struct mlx5_ifc_pcam_reg_bits {
};
struct mlx5_ifc_mcam_enhanced_features_bits {
u8 reserved_at_0[0x74];
u8 reserved_at_0[0x6e];
u8 pci_status_and_power[0x1];
u8 reserved_at_6f[0x5];
u8 mark_tx_action_cnp[0x1];
u8 mark_tx_action_cqe[0x1];
u8 dynamic_tx_overflow[0x1];
@@ -8954,6 +9002,7 @@ union mlx5_ifc_ports_control_registers_document_bits {
struct mlx5_ifc_pmtu_reg_bits pmtu_reg;
struct mlx5_ifc_ppad_reg_bits ppad_reg;
struct mlx5_ifc_ppcnt_reg_bits ppcnt_reg;
struct mlx5_ifc_mpein_reg_bits mpein_reg;
struct mlx5_ifc_mpcnt_reg_bits mpcnt_reg;
struct mlx5_ifc_pplm_reg_bits pplm_reg;
struct mlx5_ifc_pplr_reg_bits pplr_reg;