qcacmn: Introduce hif_exec_context
hif_exec_context extends hif_ext_groups to support napi and tasklet models. Some of the rename and enahancements have been done to support merging of the execution context management code between the CE and DP contexts, as well as supporting irq affinity for both napi & tasklet contexts. Change-Id: I82c8abf2e906f027ec80faf7353a7685536bb79b CRs-Fixed: 2051902
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Houston Hoffman
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snandini
snandini
parent
bc19894820
commit
def86a361b
@@ -179,11 +179,24 @@ struct CE_state;
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#endif
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#define HIF_NAPI_MAX_RECEIVES (QCA_NAPI_BUDGET * QCA_NAPI_DEF_SCALE)
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/* NOTE: "napi->scale" can be changed,
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* but this does not change the number of buckets
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*/
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#define QCA_NAPI_NUM_BUCKETS 4
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/**
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* qca_napi_stat - stats structure for execution contexts
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* @napi_schedules - number of times the schedule function is called
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* @napi_polls - number of times the execution context runs
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* @napi_completes - number of times that the generating interrupt is reenabled
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* @napi_workdone - cumulative of all work done reported by handler
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* @cpu_corrected - incremented when execution context runs on a different core
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* than the one that its irq is affined to.
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* @napi_budget_uses - histogram of work done per execution run
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* @time_limit_reache - count of yields due to time limit threshholds
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* @rxpkt_thresh_reached - count of yields due to a work limit
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*
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* needs to be renamed
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*/
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struct qca_napi_stat {
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uint32_t napi_schedules;
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uint32_t napi_polls;
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@@ -195,6 +208,7 @@ struct qca_napi_stat {
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uint32_t rxpkt_thresh_reached;
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};
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/**
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* per NAPI instance data structure
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* This data structure holds stuff per NAPI instance.
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@@ -217,24 +231,6 @@ struct qca_napi_info {
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qdf_spinlock_t lro_unloading_lock;
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};
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/**
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* struct qca_napi_cpu - an entry of the napi cpu table
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* @core_id: physical core id of the core
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* @cluster_id: cluster this core belongs to
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* @core_mask: mask to match all core of this cluster
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* @thread_mask: mask for this core within the cluster
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* @max_freq: maximum clock this core can be clocked at
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* same for all cpus of the same core.
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* @napis: bitmap of napi instances on this core
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* cluster_nxt: chain to link cores within the same cluster
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*
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* This structure represents a single entry in the napi cpu
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* table. The table is part of struct qca_napi_data.
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* This table is initialized by the init function, called while
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* the first napi instance is being created, updated by hotplug
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* notifier and when cpu affinity decisions are made (by throughput
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* detection), and deleted when the last napi instance is removed.
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*/
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enum qca_napi_tput_state {
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QCA_NAPI_TPUT_UNINITIALIZED,
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QCA_NAPI_TPUT_LO,
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@@ -244,6 +240,26 @@ enum qca_napi_cpu_state {
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QCA_NAPI_CPU_UNINITIALIZED,
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QCA_NAPI_CPU_DOWN,
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QCA_NAPI_CPU_UP };
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/**
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* struct qca_napi_cpu - an entry of the napi cpu table
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* @core_id: physical core id of the core
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* @cluster_id: cluster this core belongs to
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* @core_mask: mask to match all core of this cluster
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* @thread_mask: mask for this core within the cluster
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* @max_freq: maximum clock this core can be clocked at
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* same for all cpus of the same core.
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* @napis: bitmap of napi instances on this core
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* @execs: bitmap of execution contexts on this core
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* cluster_nxt: chain to link cores within the same cluster
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*
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* This structure represents a single entry in the napi cpu
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* table. The table is part of struct qca_napi_data.
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* This table is initialized by the init function, called while
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* the first napi instance is being created, updated by hotplug
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* notifier and when cpu affinity decisions are made (by throughput
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* detection), and deleted when the last napi instance is removed.
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*/
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struct qca_napi_cpu {
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enum qca_napi_cpu_state state;
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int core_id;
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@@ -252,22 +268,32 @@ struct qca_napi_cpu {
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cpumask_t thread_mask;
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unsigned int max_freq;
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uint32_t napis;
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uint32_t execs;
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int cluster_nxt; /* index, not pointer */
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};
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/**
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* NAPI data-structure common to all NAPI instances.
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*
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* A variable of this type will be stored in hif module context.
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* struct qca_napi_data - collection of napi data for a single hif context
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* @hif_softc: pointer to the hif context
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* @lock: spinlock used in the event state machine
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* @state: state variable used in the napi stat machine
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* @ce_map: bit map indicating which ce's have napis running
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* @exec_map: bit map of instanciated exec contexts
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* @napi_cpu: cpu info for irq affinty
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* @lilcl_head:
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* @bigcl_head:
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* @napi_mode: irq affinity & clock voting mode
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*/
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struct qca_napi_data {
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qdf_spinlock_t lock;
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struct hif_softc *hif_softc;
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qdf_spinlock_t lock;
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uint32_t state;
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/* bitmap of created/registered NAPI instances, indexed by pipe_id,
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* not used by clients (clients use an id returned by create)
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*/
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uint32_t ce_map;
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uint32_t exec_map;
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struct qca_napi_info *napis[CE_COUNT_MAX];
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struct qca_napi_cpu napi_cpu[NR_CPUS];
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int lilcl_head, bigcl_head;
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@@ -495,7 +521,6 @@ QDF_STATUS hif_diag_write_mem(struct hif_opaque_softc *hif_ctx,
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uint32_t address, uint8_t *data, int nbytes);
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typedef void (*fastpath_msg_handler)(void *, qdf_nbuf_t *, uint32_t);
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typedef uint32_t (*ext_intr_handler)(void *, uint32_t);
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/*
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* Set the FASTPATH_mode_on flag in sc, for use by data path
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@@ -854,11 +879,17 @@ void hif_set_attribute(struct hif_opaque_softc *osc, uint8_t hif_attrib);
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void *hif_get_lro_info(int ctx_id, struct hif_opaque_softc *hif_hdl);
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uint32_t hif_register_ext_group_int_handler(struct hif_opaque_softc *hif_ctx,
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uint32_t numirq, uint32_t irq[], ext_intr_handler handler,
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void *context);
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enum hif_exec_type {
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HIF_EXEC_NAPI_TYPE,
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HIF_EXEC_TASKLET_TYPE,
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};
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typedef uint32_t (*ext_intr_handler)(void *, uint32_t);
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uint32_t hif_configure_ext_group_interrupts(struct hif_opaque_softc *hif_ctx);
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uint32_t hif_register_ext_group(struct hif_opaque_softc *hif_ctx,
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uint32_t numirq, uint32_t irq[], ext_intr_handler handler,
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void *cb_ctx, const char *context_name,
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enum hif_exec_type type);
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void hif_update_pipe_callback(struct hif_opaque_softc *osc,
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u_int8_t pipeid,
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