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authorJack Morgenstein <jackm@dev.mellanox.co.il>2012-06-19 11:21:40 +0300
committerRoland Dreier <roland@purestorage.com>2012-07-10 09:47:10 -0700
commit00f5ce99dc6ee46c3113393cc8fa12173f9bbcd7 (patch)
treecbcd8e2afcd492b3677bf3eedec29b34f249129c /include/linux/mlx4
parent3045f0920367e625bbec7d66fadb444e673515af (diff)
mlx4: Use port management change event instead of smp_snoop
The port management change event can replace smp_snoop. If the capability bit for this event is set in dev-caps, the event is used (by the driver setting the PORT_MNG_CHG_EVENT bit in the async event mask in the MAP_EQ fw command). In this case, when the driver passes incoming SMP PORT_INFO SET mads to the FW, the FW generates port management change events to signal any changes to the driver. If the FW generates these events, smp_snoop shouldn't be invoked in ib_process_mad(), or duplicate events will occur (once from the FW-generated event, and once from smp_snoop). In the case where the FW does not generate port management change events smp_snoop needs to be invoked to create these events. The flow in smp_snoop has been modified to make use of the same procedures as in the fw-generated-event event case to generate the port management events (LID change, Client-rereg, Pkey change, and/or GID change). Port management change event handling required changing the mlx4_ib_event and mlx4_dispatch_event prototypes; the "param" argument (last argument) had to be changed to unsigned long in order to accomodate passing the EQE pointer. We also needed to move the definition of struct mlx4_eqe from net/mlx4.h to file device.h -- to make it available to the IB driver, to handle port management change events. Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
Diffstat (limited to 'include/linux/mlx4')
-rw-r--r--include/linux/mlx4/device.h99
-rw-r--r--include/linux/mlx4/driver.h3
2 files changed, 100 insertions, 2 deletions
diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h
index 8eadf0f14cc5..560b2201519f 100644
--- a/include/linux/mlx4/device.h
+++ b/include/linux/mlx4/device.h
@@ -96,7 +96,8 @@ enum {
MLX4_DEV_CAP_FLAG_VEP_UC_STEER = 1LL << 41,
MLX4_DEV_CAP_FLAG_VEP_MC_STEER = 1LL << 42,
MLX4_DEV_CAP_FLAG_COUNTERS = 1LL << 48,
- MLX4_DEV_CAP_FLAG_SENSE_SUPPORT = 1LL << 55
+ MLX4_DEV_CAP_FLAG_SENSE_SUPPORT = 1LL << 55,
+ MLX4_DEV_CAP_FLAG_PORT_MNG_CHG_EV = 1LL << 59,
};
enum {
@@ -138,6 +139,7 @@ enum mlx4_event {
MLX4_EVENT_TYPE_COMM_CHANNEL = 0x18,
MLX4_EVENT_TYPE_FATAL_WARNING = 0x1b,
MLX4_EVENT_TYPE_FLR_EVENT = 0x1c,
+ MLX4_EVENT_TYPE_PORT_MNG_CHG_EVENT = 0x1d,
MLX4_EVENT_TYPE_NONE = 0xff,
};
@@ -235,6 +237,24 @@ enum {
MLX4_MAX_FAST_REG_PAGES = 511,
};
+enum {
+ MLX4_DEV_PMC_SUBTYPE_GUID_INFO = 0x14,
+ MLX4_DEV_PMC_SUBTYPE_PORT_INFO = 0x15,
+ MLX4_DEV_PMC_SUBTYPE_PKEY_TABLE = 0x16,
+};
+
+/* Port mgmt change event handling */
+enum {
+ MLX4_EQ_PORT_INFO_MSTR_SM_LID_CHANGE_MASK = 1 << 0,
+ MLX4_EQ_PORT_INFO_GID_PFX_CHANGE_MASK = 1 << 1,
+ MLX4_EQ_PORT_INFO_LID_CHANGE_MASK = 1 << 2,
+ MLX4_EQ_PORT_INFO_CLIENT_REREG_MASK = 1 << 3,
+ MLX4_EQ_PORT_INFO_MSTR_SM_SL_CHANGE_MASK = 1 << 4,
+};
+
+#define MSTR_SM_CHANGE_MASK (MLX4_EQ_PORT_INFO_MSTR_SM_SL_CHANGE_MASK | \
+ MLX4_EQ_PORT_INFO_MSTR_SM_LID_CHANGE_MASK)
+
static inline u64 mlx4_fw_ver(u64 major, u64 minor, u64 subminor)
{
return (major << 32) | (minor << 16) | subminor;
@@ -511,6 +531,81 @@ struct mlx4_dev {
int num_vfs;
};
+struct mlx4_eqe {
+ u8 reserved1;
+ u8 type;
+ u8 reserved2;
+ u8 subtype;
+ union {
+ u32 raw[6];
+ struct {
+ __be32 cqn;
+ } __packed comp;
+ struct {
+ u16 reserved1;
+ __be16 token;
+ u32 reserved2;
+ u8 reserved3[3];
+ u8 status;
+ __be64 out_param;
+ } __packed cmd;
+ struct {
+ __be32 qpn;
+ } __packed qp;
+ struct {
+ __be32 srqn;
+ } __packed srq;
+ struct {
+ __be32 cqn;
+ u32 reserved1;
+ u8 reserved2[3];
+ u8 syndrome;
+ } __packed cq_err;
+ struct {
+ u32 reserved1[2];
+ __be32 port;
+ } __packed port_change;
+ struct {
+ #define COMM_CHANNEL_BIT_ARRAY_SIZE 4
+ u32 reserved;
+ u32 bit_vec[COMM_CHANNEL_BIT_ARRAY_SIZE];
+ } __packed comm_channel_arm;
+ struct {
+ u8 port;
+ u8 reserved[3];
+ __be64 mac;
+ } __packed mac_update;
+ struct {
+ __be32 slave_id;
+ } __packed flr_event;
+ struct {
+ __be16 current_temperature;
+ __be16 warning_threshold;
+ } __packed warming;
+ struct {
+ u8 reserved[3];
+ u8 port;
+ union {
+ struct {
+ __be16 mstr_sm_lid;
+ __be16 port_lid;
+ __be32 changed_attr;
+ u8 reserved[3];
+ u8 mstr_sm_sl;
+ __be64 gid_prefix;
+ } __packed port_info;
+ struct {
+ __be32 block_ptr;
+ __be32 tbl_entries_mask;
+ } __packed tbl_change_info;
+ } params;
+ } __packed port_mgmt_change;
+ } event;
+ u8 slave_id;
+ u8 reserved3[2];
+ u8 owner;
+} __packed;
+
struct mlx4_init_port_param {
int set_guid0;
int set_node_guid;
@@ -536,6 +631,8 @@ struct mlx4_init_port_param {
#define MLX4_INVALID_SLAVE_ID 0xFF
+void handle_port_mgmt_change_event(struct work_struct *work);
+
static inline int mlx4_is_master(struct mlx4_dev *dev)
{
return dev->flags & MLX4_FLAG_MASTER;
diff --git a/include/linux/mlx4/driver.h b/include/linux/mlx4/driver.h
index 5f1298b1b5ef..0f509229fb3d 100644
--- a/include/linux/mlx4/driver.h
+++ b/include/linux/mlx4/driver.h
@@ -42,13 +42,14 @@ enum mlx4_dev_event {
MLX4_DEV_EVENT_PORT_UP,
MLX4_DEV_EVENT_PORT_DOWN,
MLX4_DEV_EVENT_PORT_REINIT,
+ MLX4_DEV_EVENT_PORT_MGMT_CHANGE,
};
struct mlx4_interface {
void * (*add) (struct mlx4_dev *dev);
void (*remove)(struct mlx4_dev *dev, void *context);
void (*event) (struct mlx4_dev *dev, void *context,
- enum mlx4_dev_event event, int port);
+ enum mlx4_dev_event event, unsigned long param);
void * (*get_dev)(struct mlx4_dev *dev, void *context, u8 port);
struct list_head list;
enum mlx4_protocol protocol;