IB_DEVICE_CROSS_CHANNEL = (1 << 27),
IB_DEVICE_MANAGED_FLOW_STEERING = (1 << 29),
IB_DEVICE_SIGNATURE_HANDOVER = (1 << 30),
- IB_DEVICE_ON_DEMAND_PAGING = (1 << 31),
+ IB_DEVICE_ON_DEMAND_PAGING = (1ULL << 31),
IB_DEVICE_SG_GAPS_REG = (1ULL << 32),
- IB_DEVICE_VIRTUAL_FUNCTION = ((u64)1 << 33),
- IB_DEVICE_RAW_SCATTER_FCS = ((u64)1 << 34),
+ IB_DEVICE_VIRTUAL_FUNCTION = (1ULL << 33),
+ IB_DEVICE_RAW_SCATTER_FCS = (1ULL << 34),
};
enum ib_signature_prot_cap {
IB_SPEED_EDR = 32
};
-struct ib_protocol_stats {
- /* TBD... */
-};
-
-struct iw_protocol_stats {
- u64 ipInReceives;
- u64 ipInHdrErrors;
- u64 ipInTooBigErrors;
- u64 ipInNoRoutes;
- u64 ipInAddrErrors;
- u64 ipInUnknownProtos;
- u64 ipInTruncatedPkts;
- u64 ipInDiscards;
- u64 ipInDelivers;
- u64 ipOutForwDatagrams;
- u64 ipOutRequests;
- u64 ipOutDiscards;
- u64 ipOutNoRoutes;
- u64 ipReasmTimeout;
- u64 ipReasmReqds;
- u64 ipReasmOKs;
- u64 ipReasmFails;
- u64 ipFragOKs;
- u64 ipFragFails;
- u64 ipFragCreates;
- u64 ipInMcastPkts;
- u64 ipOutMcastPkts;
- u64 ipInBcastPkts;
- u64 ipOutBcastPkts;
-
- u64 tcpRtoAlgorithm;
- u64 tcpRtoMin;
- u64 tcpRtoMax;
- u64 tcpMaxConn;
- u64 tcpActiveOpens;
- u64 tcpPassiveOpens;
- u64 tcpAttemptFails;
- u64 tcpEstabResets;
- u64 tcpCurrEstab;
- u64 tcpInSegs;
- u64 tcpOutSegs;
- u64 tcpRetransSegs;
- u64 tcpInErrs;
- u64 tcpOutRsts;
-};
-
-union rdma_protocol_stats {
- struct ib_protocol_stats ib;
- struct iw_protocol_stats iw;
-};
+/**
+ * struct rdma_hw_stats
+ * @timestamp - Used by the core code to track when the last update was
+ * @lifespan - Used by the core code to determine how old the counters
+ * should be before being updated again. Stored in jiffies, defaults
+ * to 10 milliseconds, drivers can override the default be specifying
+ * their own value during their allocation routine.
+ * @name - Array of pointers to static names used for the counters in
+ * directory.
+ * @num_counters - How many hardware counters there are. If name is
+ * shorter than this number, a kernel oops will result. Driver authors
+ * are encouraged to leave BUILD_BUG_ON(ARRAY_SIZE(@name) < num_counters)
+ * in their code to prevent this.
+ * @value - Array of u64 counters that are accessed by the sysfs code and
+ * filled in by the drivers get_stats routine
+ */
+struct rdma_hw_stats {
+ unsigned long timestamp;
+ unsigned long lifespan;
+ const char * const *names;
+ int num_counters;
+ u64 value[];
+};
+
+#define RDMA_HW_STATS_DEFAULT_LIFESPAN 10
+/**
+ * rdma_alloc_hw_stats_struct - Helper function to allocate dynamic struct
+ * for drivers.
+ * @names - Array of static const char *
+ * @num_counters - How many elements in array
+ * @lifespan - How many milliseconds between updates
+ */
+static inline struct rdma_hw_stats *rdma_alloc_hw_stats_struct(
+ const char * const *names, int num_counters,
+ unsigned long lifespan)
+{
+ struct rdma_hw_stats *stats;
+
+ stats = kzalloc(sizeof(*stats) + num_counters * sizeof(u64),
+ GFP_KERNEL);
+ if (!stats)
+ return NULL;
+ stats->names = names;
+ stats->num_counters = num_counters;
+ stats->lifespan = msecs_to_jiffies(lifespan);
+
+ return stats;
+}
+
/* Define bits for the various functionality this port needs to be supported by
* the core.
struct iw_cm_verbs *iwcm;
- int (*get_protocol_stats)(struct ib_device *device,
- union rdma_protocol_stats *stats);
+ /**
+ * alloc_hw_stats - Allocate a struct rdma_hw_stats and fill in the
+ * driver initialized data. The struct is kfree()'ed by the sysfs
+ * core when the device is removed. A lifespan of -1 in the return
+ * struct tells the core to set a default lifespan.
+ */
+ struct rdma_hw_stats *(*alloc_hw_stats)(struct ib_device *device,
+ u8 port_num);
+ /**
+ * get_hw_stats - Fill in the counter value(s) in the stats struct.
+ * @index - The index in the value array we wish to have updated, or
+ * num_counters if we want all stats updated
+ * Return codes -
+ * < 0 - Error, no counters updated
+ * index - Updated the single counter pointed to by index
+ * num_counters - Updated all counters (will reset the timestamp
+ * and prevent further calls for lifespan milliseconds)
+ * Drivers are allowed to update all counters in leiu of just the
+ * one given in index at their option
+ */
+ int (*get_hw_stats)(struct ib_device *device,
+ struct rdma_hw_stats *stats,
+ u8 port, int index);
int (*query_device)(struct ib_device *device,
struct ib_device_attr *device_attr,
struct ib_udata *udata);
u8 node_type;
u8 phys_port_cnt;
struct ib_device_attr attrs;
+ struct attribute_group *hw_stats_ag;
+ struct rdma_hw_stats *hw_stats;
/**
* The following mandatory functions are used only at device
projects / karo-tx-linux.git / blobdiff