static osal_spinlock_t qm_lock;
static bool qm_lock_init;
+/******************** Doorbell Recovery *******************/
+/* The doorbell recovery mechanism consists of a list of entries which represent
+ * doorbelling entities (l2 queues, roce sq/rq/cqs, the slowpath spq, etc). Each
+ * entity needs to register with the mechanism and provide the parameters
+ * describing it's doorbell, including a location where last used doorbell data
+ * can be found. The doorbell execute function will traverse the list and
+ * doorbell all of the registered entries.
+ */
+struct ecore_db_recovery_entry {
+ osal_list_entry_t list_entry;
+ void OSAL_IOMEM *db_addr;
+ void *db_data;
+ enum ecore_db_rec_width db_width;
+ enum ecore_db_rec_space db_space;
+ u8 hwfn_idx;
+};
+
+/* display a single doorbell recovery entry */
+void ecore_db_recovery_dp_entry(struct ecore_hwfn *p_hwfn,
+ struct ecore_db_recovery_entry *db_entry,
+ const char *action)
+{
+ DP_VERBOSE(p_hwfn, ECORE_MSG_SPQ, "(%s: db_entry %p, addr %p, data %p, width %s, %s space, hwfn %d)\n",
+ action, db_entry, db_entry->db_addr, db_entry->db_data,
+ db_entry->db_width == DB_REC_WIDTH_32B ? "32b" : "64b",
+ db_entry->db_space == DB_REC_USER ? "user" : "kernel",
+ db_entry->hwfn_idx);
+}
+
+/* doorbell address sanity (address within doorbell bar range) */
+bool ecore_db_rec_sanity(struct ecore_dev *p_dev, void OSAL_IOMEM *db_addr,
+ void *db_data)
+{
+ /* make sure doorbell address is within the doorbell bar */
+ if (db_addr < p_dev->doorbells || (u8 *)db_addr >
+ (u8 *)p_dev->doorbells + p_dev->db_size) {
+ OSAL_WARN(true,
+ "Illegal doorbell address: %p. Legal range for doorbell addresses is [%p..%p]\n",
+ db_addr, p_dev->doorbells,
+ (u8 *)p_dev->doorbells + p_dev->db_size);
+ return false;
+ }
+
+ /* make sure doorbell data pointer is not null */
+ if (!db_data) {
+ OSAL_WARN(true, "Illegal doorbell data pointer: %p", db_data);
+ return false;
+ }
+
+ return true;
+}
+
+/* find hwfn according to the doorbell address */
+struct ecore_hwfn *ecore_db_rec_find_hwfn(struct ecore_dev *p_dev,
+ void OSAL_IOMEM *db_addr)
+{
+ struct ecore_hwfn *p_hwfn;
+
+ /* In CMT doorbell bar is split down the middle between engine 0 and
+ * enigne 1
+ */
+ if (p_dev->num_hwfns > 1)
+ p_hwfn = db_addr < p_dev->hwfns[1].doorbells ?
+ &p_dev->hwfns[0] : &p_dev->hwfns[1];
+ else
+ p_hwfn = ECORE_LEADING_HWFN(p_dev);
+
+ return p_hwfn;
+}
+
+/* add a new entry to the doorbell recovery mechanism */
+enum _ecore_status_t ecore_db_recovery_add(struct ecore_dev *p_dev,
+ void OSAL_IOMEM *db_addr,
+ void *db_data,
+ enum ecore_db_rec_width db_width,
+ enum ecore_db_rec_space db_space)
+{
+ struct ecore_db_recovery_entry *db_entry;
+ struct ecore_hwfn *p_hwfn;
+
+ /* shortcircuit VFs, for now */
+ if (IS_VF(p_dev)) {
+ DP_VERBOSE(p_dev, ECORE_MSG_IOV, "db recovery - skipping VF doorbell\n");
+ return ECORE_SUCCESS;
+ }
+
+ /* sanitize doorbell address */
+ if (!ecore_db_rec_sanity(p_dev, db_addr, db_data))
+ return ECORE_INVAL;
+
+ /* obtain hwfn from doorbell address */
+ p_hwfn = ecore_db_rec_find_hwfn(p_dev, db_addr);
+
+ /* create entry */
+ db_entry = OSAL_ZALLOC(p_hwfn->p_dev, GFP_KERNEL, sizeof(*db_entry));
+ if (!db_entry) {
+ DP_NOTICE(p_dev, false, "Failed to allocate a db recovery entry\n");
+ return ECORE_NOMEM;
+ }
+
+ /* populate entry */
+ db_entry->db_addr = db_addr;
+ db_entry->db_data = db_data;
+ db_entry->db_width = db_width;
+ db_entry->db_space = db_space;
+ db_entry->hwfn_idx = p_hwfn->my_id;
+
+ /* display */
+ ecore_db_recovery_dp_entry(p_hwfn, db_entry, "Adding");
+
+ /* protect the list */
+ OSAL_SPIN_LOCK(&p_hwfn->db_recovery_info.lock);
+ OSAL_LIST_PUSH_TAIL(&db_entry->list_entry,
+ &p_hwfn->db_recovery_info.list);
+ OSAL_SPIN_UNLOCK(&p_hwfn->db_recovery_info.lock);
+
+ return ECORE_SUCCESS;
+}
+
+/* remove an entry from the doorbell recovery mechanism */
+enum _ecore_status_t ecore_db_recovery_del(struct ecore_dev *p_dev,
+ void OSAL_IOMEM *db_addr,
+ void *db_data)
+{
+ struct ecore_db_recovery_entry *db_entry = OSAL_NULL;
+ enum _ecore_status_t rc = ECORE_INVAL;
+ struct ecore_hwfn *p_hwfn;
+
+ /* shortcircuit VFs, for now */
+ if (IS_VF(p_dev)) {
+ DP_VERBOSE(p_dev, ECORE_MSG_IOV, "db recovery - skipping VF doorbell\n");
+ return ECORE_SUCCESS;
+ }
+
+ /* sanitize doorbell address */
+ if (!ecore_db_rec_sanity(p_dev, db_addr, db_data))
+ return ECORE_INVAL;
+
+ /* obtain hwfn from doorbell address */
+ p_hwfn = ecore_db_rec_find_hwfn(p_dev, db_addr);
+
+ /* protect the list */
+ OSAL_SPIN_LOCK(&p_hwfn->db_recovery_info.lock);
+ OSAL_LIST_FOR_EACH_ENTRY(db_entry,
+ &p_hwfn->db_recovery_info.list,
+ list_entry,
+ struct ecore_db_recovery_entry) {
+ /* search according to db_data addr since db_addr is not unique
+ * (roce)
+ */
+ if (db_entry->db_data == db_data) {
+ ecore_db_recovery_dp_entry(p_hwfn, db_entry,
+ "Deleting");
+ OSAL_LIST_REMOVE_ENTRY(&db_entry->list_entry,
+ &p_hwfn->db_recovery_info.list);
+ rc = ECORE_SUCCESS;
+ break;
+ }
+ }
+
+ OSAL_SPIN_UNLOCK(&p_hwfn->db_recovery_info.lock);
+
+ if (rc == ECORE_INVAL)
+ /*OSAL_WARN(true,*/
+ DP_NOTICE(p_hwfn, false,
+ "Failed to find element in list. Key (db_data addr) was %p. db_addr was %p\n",
+ db_data, db_addr);
+ else
+ OSAL_FREE(p_dev, db_entry);
+
+ return rc;
+}
+
+/* initialize the doorbell recovery mechanism */
+enum _ecore_status_t ecore_db_recovery_setup(struct ecore_hwfn *p_hwfn)
+{
+ DP_VERBOSE(p_hwfn, ECORE_MSG_SPQ, "Setting up db recovery\n");
+
+ /* make sure db_size was set in p_dev */
+ if (!p_hwfn->p_dev->db_size) {
+ DP_ERR(p_hwfn->p_dev, "db_size not set\n");
+ return ECORE_INVAL;
+ }
+
+ OSAL_LIST_INIT(&p_hwfn->db_recovery_info.list);
+#ifdef CONFIG_ECORE_LOCK_ALLOC
+ OSAL_SPIN_LOCK_ALLOC(p_hwfn, &p_hwfn->db_recovery_info.lock);
+#endif
+ OSAL_SPIN_LOCK_INIT(&p_hwfn->db_recovery_info.lock);
+ p_hwfn->db_recovery_info.db_recovery_counter = 0;
+
+ return ECORE_SUCCESS;
+}
+
+/* destroy the doorbell recovery mechanism */
+void ecore_db_recovery_teardown(struct ecore_hwfn *p_hwfn)
+{
+ struct ecore_db_recovery_entry *db_entry = OSAL_NULL;
+
+ DP_VERBOSE(p_hwfn, ECORE_MSG_SPQ, "Tearing down db recovery\n");
+ if (!OSAL_LIST_IS_EMPTY(&p_hwfn->db_recovery_info.list)) {
+ DP_VERBOSE(p_hwfn, false, "Doorbell Recovery teardown found the doorbell recovery list was not empty (Expected in disorderly driver unload (e.g. recovery) otherwise this probably means some flow forgot to db_recovery_del). Prepare to purge doorbell recovery list...\n");
+ while (!OSAL_LIST_IS_EMPTY(&p_hwfn->db_recovery_info.list)) {
+ db_entry = OSAL_LIST_FIRST_ENTRY(
+ &p_hwfn->db_recovery_info.list,
+ struct ecore_db_recovery_entry,
+ list_entry);
+ ecore_db_recovery_dp_entry(p_hwfn, db_entry, "Purging");
+ OSAL_LIST_REMOVE_ENTRY(&db_entry->list_entry,
+ &p_hwfn->db_recovery_info.list);
+ OSAL_FREE(p_hwfn->p_dev, db_entry);
+ }
+ }
+#ifdef CONFIG_ECORE_LOCK_ALLOC
+ OSAL_SPIN_LOCK_DEALLOC(&p_hwfn->db_recovery_info.lock);
+#endif
+ p_hwfn->db_recovery_info.db_recovery_counter = 0;
+}
+
+/* print the content of the doorbell recovery mechanism */
+void ecore_db_recovery_dp(struct ecore_hwfn *p_hwfn)
+{
+ struct ecore_db_recovery_entry *db_entry = OSAL_NULL;
+
+ DP_NOTICE(p_hwfn, false,
+ "Dispalying doorbell recovery database. Counter was %d\n",
+ p_hwfn->db_recovery_info.db_recovery_counter);
+
+ /* protect the list */
+ OSAL_SPIN_LOCK(&p_hwfn->db_recovery_info.lock);
+ OSAL_LIST_FOR_EACH_ENTRY(db_entry,
+ &p_hwfn->db_recovery_info.list,
+ list_entry,
+ struct ecore_db_recovery_entry) {
+ ecore_db_recovery_dp_entry(p_hwfn, db_entry, "Printing");
+ }
+
+ OSAL_SPIN_UNLOCK(&p_hwfn->db_recovery_info.lock);
+}
+
+/* ring the doorbell of a single doorbell recovery entry */
+void ecore_db_recovery_ring(struct ecore_hwfn *p_hwfn,
+ struct ecore_db_recovery_entry *db_entry,
+ enum ecore_db_rec_exec db_exec)
+{
+ /* Print according to width */
+ if (db_entry->db_width == DB_REC_WIDTH_32B)
+ DP_VERBOSE(p_hwfn, ECORE_MSG_SPQ, "%s doorbell address %p data %x\n",
+ db_exec == DB_REC_DRY_RUN ? "would have rung" : "ringing",
+ db_entry->db_addr, *(u32 *)db_entry->db_data);
+ else
+ DP_VERBOSE(p_hwfn, ECORE_MSG_SPQ, "%s doorbell address %p data %lx\n",
+ db_exec == DB_REC_DRY_RUN ? "would have rung" : "ringing",
+ db_entry->db_addr,
+ *(unsigned long *)(db_entry->db_data));
+
+ /* Sanity */
+ if (!ecore_db_rec_sanity(p_hwfn->p_dev, db_entry->db_addr,
+ db_entry->db_data))
+ return;
+
+ /* Flush the write combined buffer. Since there are multiple doorbelling
+ * entities using the same address, if we don't flush, a transaction
+ * could be lost.
+ */
+ OSAL_WMB(p_hwfn->p_dev);
+
+ /* Ring the doorbell */
+ if (db_exec == DB_REC_REAL_DEAL || db_exec == DB_REC_ONCE) {
+ if (db_entry->db_width == DB_REC_WIDTH_32B)
+ DIRECT_REG_WR(p_hwfn, db_entry->db_addr,
+ *(u32 *)(db_entry->db_data));
+ else
+ DIRECT_REG_WR64(p_hwfn, db_entry->db_addr,
+ *(u64 *)(db_entry->db_data));
+ }
+
+ /* Flush the write combined buffer. Next doorbell may come from a
+ * different entity to the same address...
+ */
+ OSAL_WMB(p_hwfn->p_dev);
+}
+
+/* traverse the doorbell recovery entry list and ring all the doorbells */
+void ecore_db_recovery_execute(struct ecore_hwfn *p_hwfn,
+ enum ecore_db_rec_exec db_exec)
+{
+ struct ecore_db_recovery_entry *db_entry = OSAL_NULL;
+
+ if (db_exec != DB_REC_ONCE) {
+ DP_NOTICE(p_hwfn, false, "Executing doorbell recovery. Counter was %d\n",
+ p_hwfn->db_recovery_info.db_recovery_counter);
+
+ /* track amount of times recovery was executed */
+ p_hwfn->db_recovery_info.db_recovery_counter++;
+ }
+
+ /* protect the list */
+ OSAL_SPIN_LOCK(&p_hwfn->db_recovery_info.lock);
+ OSAL_LIST_FOR_EACH_ENTRY(db_entry,
+ &p_hwfn->db_recovery_info.list,
+ list_entry,
+ struct ecore_db_recovery_entry) {
+ ecore_db_recovery_ring(p_hwfn, db_entry, db_exec);
+ if (db_exec == DB_REC_ONCE)
+ break;
+ }
+
+ OSAL_SPIN_UNLOCK(&p_hwfn->db_recovery_info.lock);
+}
+/******************** Doorbell Recovery end ****************/
+
/* Configurable */
#define ECORE_MIN_DPIS (4) /* The minimal num of DPIs required to
* load the driver. The number was
p_hwfn->my_id = i;
p_hwfn->b_active = false;
+#ifdef CONFIG_ECORE_LOCK_ALLOC
OSAL_MUTEX_ALLOC(p_hwfn, &p_hwfn->dmae_info.mutex);
+#endif
OSAL_MUTEX_INIT(&p_hwfn->dmae_info.mutex);
}
ecore_dmae_info_free(p_hwfn);
ecore_dcbx_info_free(p_hwfn, p_hwfn->p_dcbx_info);
/* @@@TBD Flush work-queue ? */
+
+ /* destroy doorbell recovery mechanism */
+ ecore_db_recovery_teardown(p_hwfn);
}
}
struct ecore_hwfn *p_hwfn = &p_dev->hwfns[i];
u32 n_eqes, num_cons;
+ /* initialize the doorbell recovery mechanism */
+ rc = ecore_db_recovery_setup(p_hwfn);
+ if (rc)
+ goto alloc_err;
+
/* First allocate the context manager structure */
rc = ecore_cxt_mngr_alloc(p_hwfn);
if (rc)
goto alloc_err;
- /* Set the HW cid/tid numbers (in the contest manager)
+ /* Set the HW cid/tid numbers (in the context manager)
* Must be done prior to any further computations.
*/
rc = ecore_cxt_set_pf_params(p_hwfn);
"sending phony dcbx set command to trigger DCBx attention handling\n");
rc = ecore_mcp_cmd(p_hwfn, p_hwfn->p_main_ptt,
DRV_MSG_CODE_SET_DCBX,
- 1 << DRV_MB_PARAM_DCBX_NOTIFY_SHIFT, &resp,
+ 1 << DRV_MB_PARAM_DCBX_NOTIFY_OFFSET, &resp,
¶m);
if (rc != ECORE_SUCCESS) {
DP_NOTICE(p_hwfn, true,
return ECORE_SUCCESS;
}
-#define ECORE_RESC_ALLOC_LOCK_RETRY_CNT 10
-#define ECORE_RESC_ALLOC_LOCK_RETRY_INTVL_US 10000 /* 10 msec */
-
static enum _ecore_status_t ecore_hw_get_resc(struct ecore_hwfn *p_hwfn,
struct ecore_ptt *p_ptt,
bool drv_resc_alloc)
* Old drivers that don't acquire the lock can run in parallel, and
* their allocation values won't be affected by the updated max values.
*/
- OSAL_MEM_ZERO(&resc_lock_params, sizeof(resc_lock_params));
- resc_lock_params.resource = ECORE_RESC_LOCK_RESC_ALLOC;
- resc_lock_params.retry_num = ECORE_RESC_ALLOC_LOCK_RETRY_CNT;
- resc_lock_params.retry_interval = ECORE_RESC_ALLOC_LOCK_RETRY_INTVL_US;
- resc_lock_params.sleep_b4_retry = true;
- OSAL_MEM_ZERO(&resc_unlock_params, sizeof(resc_unlock_params));
- resc_unlock_params.resource = ECORE_RESC_LOCK_RESC_ALLOC;
+ ecore_mcp_resc_lock_default_init(p_hwfn, &resc_lock_params,
+ &resc_unlock_params,
+ ECORE_RESC_LOCK_RESC_ALLOC, false);
rc = ecore_mcp_resc_lock(p_hwfn, p_ptt, &resc_lock_params);
if (rc != ECORE_SUCCESS && rc != ECORE_NOTIMPL) {
ecore_hw_hwfn_free(p_hwfn);
ecore_mcp_free(p_hwfn);
+#ifdef CONFIG_ECORE_LOCK_ALLOC
OSAL_MUTEX_DEALLOC(&p_hwfn->dmae_info.mutex);
+#endif
}
ecore_iov_free_hw_info(p_dev);
git.droids-corp.org / dpdk.git / blobdiff