1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2019-2020 Broadcom
7 #include <rte_malloc.h>
9 #include <rte_flow_driver.h>
10 #include <rte_tailq.h>
13 #include "bnxt_tf_common.h"
16 #include "tf_ext_flow_handle.h"
18 #include "ulp_template_db.h"
19 #include "ulp_template_struct.h"
20 #include "ulp_mark_mgr.h"
21 #include "ulp_flow_db.h"
22 #include "ulp_mapper.h"
23 #include "ulp_port_db.h"
25 /* Linked list of all TF sessions. */
26 STAILQ_HEAD(, bnxt_ulp_session_state) bnxt_ulp_session_list =
27 STAILQ_HEAD_INITIALIZER(bnxt_ulp_session_list);
29 /* Mutex to synchronize bnxt_ulp_session_list operations. */
30 static pthread_mutex_t bnxt_ulp_global_mutex = PTHREAD_MUTEX_INITIALIZER;
33 * Allow the deletion of context only for the bnxt device that
35 * TBD - The implementation of the function should change to
36 * using the reference count once tf_session_attach functionality
40 ulp_ctx_deinit_allowed(void *ptr)
42 struct bnxt *bp = (struct bnxt *)ptr;
47 if (&bp->tfp == bp->ulp_ctx.g_tfp)
54 * Initialize an ULP session.
55 * An ULP session will contain all the resources needed to support rte flow
56 * offloads. A session is initialized as part of rte_eth_device start.
57 * A single vswitch instance can have multiple uplinks which means
58 * rte_eth_device start will be called for each of these devices.
59 * ULP session manager will make sure that a single ULP session is only
60 * initialized once. Apart from this, it also initializes MARK database,
61 * EEM table & flow database. ULP session manager also manages a list of
62 * all opened ULP sessions.
65 ulp_ctx_session_open(struct bnxt *bp,
66 struct bnxt_ulp_session_state *session)
68 struct rte_eth_dev *ethdev = bp->eth_dev;
70 struct tf_open_session_parms params;
72 memset(¶ms, 0, sizeof(params));
74 rc = rte_eth_dev_get_name_by_port(ethdev->data->port_id,
75 params.ctrl_chan_name);
77 BNXT_TF_DBG(ERR, "Invalid port %d, rc = %d\n",
78 ethdev->data->port_id, rc);
82 rc = tf_open_session(&bp->tfp, ¶ms);
84 BNXT_TF_DBG(ERR, "Failed to open TF session - %s, rc = %d\n",
85 params.ctrl_chan_name, rc);
88 session->session_opened = 1;
89 session->g_tfp = &bp->tfp;
94 * Close the ULP session.
95 * It takes the ulp context pointer.
98 ulp_ctx_session_close(struct bnxt *bp,
99 struct bnxt_ulp_session_state *session)
101 /* close the session in the hardware */
102 if (session->session_opened)
103 tf_close_session(&bp->tfp);
104 session->session_opened = 0;
105 session->g_tfp = NULL;
106 bp->ulp_ctx.g_tfp = NULL;
110 bnxt_init_tbl_scope_parms(struct bnxt *bp,
111 struct tf_alloc_tbl_scope_parms *params)
113 struct bnxt_ulp_device_params *dparms;
117 rc = bnxt_ulp_cntxt_dev_id_get(&bp->ulp_ctx, &dev_id);
119 /* TBD: For now, just use default. */
122 dparms = bnxt_ulp_device_params_get(dev_id);
125 * Set the flush timer for EEM entries. The value is in 100ms intervals,
128 params->hw_flow_cache_flush_timer = 100;
131 params->rx_max_key_sz_in_bits = BNXT_ULP_DFLT_RX_MAX_KEY;
132 params->rx_max_action_entry_sz_in_bits =
133 BNXT_ULP_DFLT_RX_MAX_ACTN_ENTRY;
134 params->rx_mem_size_in_mb = BNXT_ULP_DFLT_RX_MEM;
135 params->rx_num_flows_in_k = BNXT_ULP_RX_NUM_FLOWS;
136 params->rx_tbl_if_id = BNXT_ULP_RX_TBL_IF_ID;
138 params->tx_max_key_sz_in_bits = BNXT_ULP_DFLT_TX_MAX_KEY;
139 params->tx_max_action_entry_sz_in_bits =
140 BNXT_ULP_DFLT_TX_MAX_ACTN_ENTRY;
141 params->tx_mem_size_in_mb = BNXT_ULP_DFLT_TX_MEM;
142 params->tx_num_flows_in_k = BNXT_ULP_TX_NUM_FLOWS;
143 params->tx_tbl_if_id = BNXT_ULP_TX_TBL_IF_ID;
145 params->rx_max_key_sz_in_bits = BNXT_ULP_DFLT_RX_MAX_KEY;
146 params->rx_max_action_entry_sz_in_bits =
147 BNXT_ULP_DFLT_RX_MAX_ACTN_ENTRY;
148 params->rx_mem_size_in_mb = BNXT_ULP_DFLT_RX_MEM;
149 params->rx_num_flows_in_k = dparms->num_flows / (1024);
150 params->rx_tbl_if_id = BNXT_ULP_RX_TBL_IF_ID;
152 params->tx_max_key_sz_in_bits = BNXT_ULP_DFLT_TX_MAX_KEY;
153 params->tx_max_action_entry_sz_in_bits =
154 BNXT_ULP_DFLT_TX_MAX_ACTN_ENTRY;
155 params->tx_mem_size_in_mb = BNXT_ULP_DFLT_TX_MEM;
156 params->tx_num_flows_in_k = dparms->num_flows / (1024);
157 params->tx_tbl_if_id = BNXT_ULP_TX_TBL_IF_ID;
161 /* Initialize Extended Exact Match host memory. */
163 ulp_eem_tbl_scope_init(struct bnxt *bp)
165 struct tf_alloc_tbl_scope_parms params = {0};
168 bnxt_init_tbl_scope_parms(bp, ¶ms);
170 rc = tf_alloc_tbl_scope(&bp->tfp, ¶ms);
172 BNXT_TF_DBG(ERR, "Unable to allocate eem table scope rc = %d\n",
177 rc = bnxt_ulp_cntxt_tbl_scope_id_set(&bp->ulp_ctx, params.tbl_scope_id);
179 BNXT_TF_DBG(ERR, "Unable to set table scope id\n");
186 /* Free Extended Exact Match host memory */
188 ulp_eem_tbl_scope_deinit(struct bnxt *bp, struct bnxt_ulp_context *ulp_ctx)
190 struct tf_free_tbl_scope_parms params = {0};
194 if (!ulp_ctx || !ulp_ctx->cfg_data)
197 /* Free the resources for the last device */
198 if (!ulp_ctx_deinit_allowed(bp))
201 tfp = bnxt_ulp_cntxt_tfp_get(ulp_ctx);
203 BNXT_TF_DBG(ERR, "Failed to get the truflow pointer\n");
207 rc = bnxt_ulp_cntxt_tbl_scope_id_get(ulp_ctx, ¶ms.tbl_scope_id);
209 BNXT_TF_DBG(ERR, "Failed to get the table scope id\n");
213 rc = tf_free_tbl_scope(tfp, ¶ms);
215 BNXT_TF_DBG(ERR, "Unable to free table scope\n");
221 /* The function to free and deinit the ulp context data. */
223 ulp_ctx_deinit(struct bnxt *bp,
224 struct bnxt_ulp_session_state *session)
226 if (!session || !bp) {
227 BNXT_TF_DBG(ERR, "Invalid Arguments\n");
231 /* close the tf session */
232 ulp_ctx_session_close(bp, session);
234 /* Free the contents */
235 if (session->cfg_data) {
236 rte_free(session->cfg_data);
237 bp->ulp_ctx.cfg_data = NULL;
238 session->cfg_data = NULL;
243 /* The function to allocate and initialize the ulp context data. */
245 ulp_ctx_init(struct bnxt *bp,
246 struct bnxt_ulp_session_state *session)
248 struct bnxt_ulp_data *ulp_data;
251 if (!session || !bp) {
252 BNXT_TF_DBG(ERR, "Invalid Arguments\n");
256 /* Allocate memory to hold ulp context data. */
257 ulp_data = rte_zmalloc("bnxt_ulp_data",
258 sizeof(struct bnxt_ulp_data), 0);
260 BNXT_TF_DBG(ERR, "Failed to allocate memory for ulp data\n");
264 /* Increment the ulp context data reference count usage. */
265 bp->ulp_ctx.cfg_data = ulp_data;
266 session->cfg_data = ulp_data;
269 /* Open the ulp session. */
270 rc = ulp_ctx_session_open(bp, session);
272 (void)ulp_ctx_deinit(bp, session);
275 bnxt_ulp_cntxt_tfp_set(&bp->ulp_ctx, session->g_tfp);
280 ulp_ctx_attach(struct bnxt_ulp_context *ulp_ctx,
281 struct bnxt_ulp_session_state *session)
283 if (!ulp_ctx || !session) {
284 BNXT_TF_DBG(ERR, "Invalid Arguments\n");
288 /* Increment the ulp context data reference count usage. */
289 ulp_ctx->cfg_data = session->cfg_data;
290 ulp_ctx->cfg_data->ref_cnt++;
292 /* TBD call TF_session_attach. */
293 ulp_ctx->g_tfp = session->g_tfp;
298 ulp_ctx_detach(struct bnxt *bp,
299 struct bnxt_ulp_session_state *session)
301 struct bnxt_ulp_context *ulp_ctx;
303 if (!bp || !session) {
304 BNXT_TF_DBG(ERR, "Invalid Arguments\n");
307 ulp_ctx = &bp->ulp_ctx;
309 if (!ulp_ctx->cfg_data)
312 /* TBD call TF_session_detach */
314 /* Increment the ulp context data reference count usage. */
315 if (ulp_ctx->cfg_data->ref_cnt >= 1) {
316 ulp_ctx->cfg_data->ref_cnt--;
317 if (ulp_ctx_deinit_allowed(bp))
318 ulp_ctx_deinit(bp, session);
319 ulp_ctx->cfg_data = NULL;
320 ulp_ctx->g_tfp = NULL;
323 BNXT_TF_DBG(ERR, "context deatach on invalid data\n");
328 * Initialize the state of an ULP session.
329 * If the state of an ULP session is not initialized, set it's state to
330 * initialized. If the state is already initialized, do nothing.
333 ulp_context_initialized(struct bnxt_ulp_session_state *session, bool *init)
335 pthread_mutex_lock(&session->bnxt_ulp_mutex);
337 if (!session->bnxt_ulp_init) {
338 session->bnxt_ulp_init = true;
344 pthread_mutex_unlock(&session->bnxt_ulp_mutex);
348 * Check if an ULP session is already allocated for a specific PCI
349 * domain & bus. If it is already allocated simply return the session
350 * pointer, otherwise allocate a new session.
352 static struct bnxt_ulp_session_state *
353 ulp_get_session(struct rte_pci_addr *pci_addr)
355 struct bnxt_ulp_session_state *session;
357 STAILQ_FOREACH(session, &bnxt_ulp_session_list, next) {
358 if (session->pci_info.domain == pci_addr->domain &&
359 session->pci_info.bus == pci_addr->bus) {
367 * Allocate and Initialize an ULP session and set it's state to INITIALIZED.
368 * If it's already initialized simply return the already existing session.
370 static struct bnxt_ulp_session_state *
371 ulp_session_init(struct bnxt *bp,
374 struct rte_pci_device *pci_dev;
375 struct rte_pci_addr *pci_addr;
376 struct bnxt_ulp_session_state *session;
381 pci_dev = RTE_DEV_TO_PCI(bp->eth_dev->device);
382 pci_addr = &pci_dev->addr;
384 pthread_mutex_lock(&bnxt_ulp_global_mutex);
386 session = ulp_get_session(pci_addr);
388 /* Not Found the session Allocate a new one */
389 session = rte_zmalloc("bnxt_ulp_session",
390 sizeof(struct bnxt_ulp_session_state),
394 "Allocation failed for bnxt_ulp_session\n");
395 pthread_mutex_unlock(&bnxt_ulp_global_mutex);
399 /* Add it to the queue */
400 session->pci_info.domain = pci_addr->domain;
401 session->pci_info.bus = pci_addr->bus;
402 pthread_mutex_init(&session->bnxt_ulp_mutex, NULL);
403 STAILQ_INSERT_TAIL(&bnxt_ulp_session_list,
407 ulp_context_initialized(session, init);
408 pthread_mutex_unlock(&bnxt_ulp_global_mutex);
413 * When a device is closed, remove it's associated session from the global
417 ulp_session_deinit(struct bnxt_ulp_session_state *session)
422 if (!session->cfg_data) {
423 pthread_mutex_lock(&bnxt_ulp_global_mutex);
424 STAILQ_REMOVE(&bnxt_ulp_session_list, session,
425 bnxt_ulp_session_state, next);
426 pthread_mutex_destroy(&session->bnxt_ulp_mutex);
428 pthread_mutex_unlock(&bnxt_ulp_global_mutex);
433 * When a port is initialized by dpdk. This functions is called
434 * and this function initializes the ULP context and rest of the
435 * infrastructure associated with it.
438 bnxt_ulp_init(struct bnxt *bp)
440 struct bnxt_ulp_session_state *session;
445 * Multiple uplink ports can be associated with a single vswitch.
446 * Make sure only the port that is started first will initialize
449 session = ulp_session_init(bp, &init);
451 BNXT_TF_DBG(ERR, "Failed to initialize the tf session\n");
456 * If ULP is already initialized for a specific domain then simply
457 * assign the ulp context to this rte_eth_dev.
460 rc = ulp_ctx_attach(&bp->ulp_ctx, session);
463 "Failed to attach the ulp context\n");
466 /* update the port database */
467 rc = ulp_port_db_dev_port_intf_update(&bp->ulp_ctx, bp);
470 "Failed to update port database\n");
475 /* Allocate and Initialize the ulp context. */
476 rc = ulp_ctx_init(bp, session);
478 BNXT_TF_DBG(ERR, "Failed to create the ulp context\n");
482 /* create the port database */
483 rc = ulp_port_db_init(&bp->ulp_ctx);
485 BNXT_TF_DBG(ERR, "Failed to create the port database\n");
489 /* update the port database */
490 rc = ulp_port_db_dev_port_intf_update(&bp->ulp_ctx, bp);
492 BNXT_TF_DBG(ERR, "Failed to update port database\n");
496 /* Create the Mark database. */
497 rc = ulp_mark_db_init(&bp->ulp_ctx);
499 BNXT_TF_DBG(ERR, "Failed to create the mark database\n");
503 /* Create the flow database. */
504 rc = ulp_flow_db_init(&bp->ulp_ctx);
506 BNXT_TF_DBG(ERR, "Failed to create the flow database\n");
510 /* Create the eem table scope. */
511 rc = ulp_eem_tbl_scope_init(bp);
513 BNXT_TF_DBG(ERR, "Failed to create the eem scope table\n");
517 rc = ulp_mapper_init(&bp->ulp_ctx);
519 BNXT_TF_DBG(ERR, "Failed to initialize ulp mapper\n");
530 /* Below are the access functions to access internal data of ulp context. */
533 * When a port is deinit'ed by dpdk. This function is called
534 * and this function clears the ULP context and rest of the
535 * infrastructure associated with it.
538 bnxt_ulp_deinit(struct bnxt *bp)
540 struct bnxt_ulp_session_state *session;
541 struct rte_pci_device *pci_dev;
542 struct rte_pci_addr *pci_addr;
544 /* Get the session first */
545 pci_dev = RTE_DEV_TO_PCI(bp->eth_dev->device);
546 pci_addr = &pci_dev->addr;
547 pthread_mutex_lock(&bnxt_ulp_global_mutex);
548 session = ulp_get_session(pci_addr);
549 pthread_mutex_unlock(&bnxt_ulp_global_mutex);
551 /* session not found then just exit */
555 /* clean up regular flows */
556 ulp_flow_db_flush_flows(&bp->ulp_ctx, BNXT_ULP_REGULAR_FLOW_TABLE);
558 /* cleanup the eem table scope */
559 ulp_eem_tbl_scope_deinit(bp, &bp->ulp_ctx);
561 /* cleanup the flow database */
562 ulp_flow_db_deinit(&bp->ulp_ctx);
564 /* Delete the Mark database */
565 ulp_mark_db_deinit(&bp->ulp_ctx);
567 /* cleanup the ulp mapper */
568 ulp_mapper_deinit(&bp->ulp_ctx);
570 /* Delete the Port database */
571 ulp_port_db_deinit(&bp->ulp_ctx);
573 /* Delete the ulp context and tf session */
574 ulp_ctx_detach(bp, session);
576 /* Finally delete the bnxt session*/
577 ulp_session_deinit(session);
580 /* Function to set the Mark DB into the context */
582 bnxt_ulp_cntxt_ptr2_mark_db_set(struct bnxt_ulp_context *ulp_ctx,
583 struct bnxt_ulp_mark_tbl *mark_tbl)
585 if (!ulp_ctx || !ulp_ctx->cfg_data) {
586 BNXT_TF_DBG(ERR, "Invalid ulp context data\n");
590 ulp_ctx->cfg_data->mark_tbl = mark_tbl;
595 /* Function to retrieve the Mark DB from the context. */
596 struct bnxt_ulp_mark_tbl *
597 bnxt_ulp_cntxt_ptr2_mark_db_get(struct bnxt_ulp_context *ulp_ctx)
599 if (!ulp_ctx || !ulp_ctx->cfg_data)
602 return ulp_ctx->cfg_data->mark_tbl;
605 /* Function to set the device id of the hardware. */
607 bnxt_ulp_cntxt_dev_id_set(struct bnxt_ulp_context *ulp_ctx,
610 if (ulp_ctx && ulp_ctx->cfg_data) {
611 ulp_ctx->cfg_data->dev_id = dev_id;
618 /* Function to get the device id of the hardware. */
620 bnxt_ulp_cntxt_dev_id_get(struct bnxt_ulp_context *ulp_ctx,
623 if (ulp_ctx && ulp_ctx->cfg_data) {
624 *dev_id = ulp_ctx->cfg_data->dev_id;
631 /* Function to get the table scope id of the EEM table. */
633 bnxt_ulp_cntxt_tbl_scope_id_get(struct bnxt_ulp_context *ulp_ctx,
634 uint32_t *tbl_scope_id)
636 if (ulp_ctx && ulp_ctx->cfg_data) {
637 *tbl_scope_id = ulp_ctx->cfg_data->tbl_scope_id;
644 /* Function to set the table scope id of the EEM table. */
646 bnxt_ulp_cntxt_tbl_scope_id_set(struct bnxt_ulp_context *ulp_ctx,
647 uint32_t tbl_scope_id)
649 if (ulp_ctx && ulp_ctx->cfg_data) {
650 ulp_ctx->cfg_data->tbl_scope_id = tbl_scope_id;
657 /* Function to set the tfp session details from the ulp context. */
659 bnxt_ulp_cntxt_tfp_set(struct bnxt_ulp_context *ulp, struct tf *tfp)
662 BNXT_TF_DBG(ERR, "Invalid arguments\n");
666 /* TBD The tfp should be removed once tf_attach is implemented. */
671 /* Function to get the tfp session details from the ulp context. */
673 bnxt_ulp_cntxt_tfp_get(struct bnxt_ulp_context *ulp)
676 BNXT_TF_DBG(ERR, "Invalid arguments\n");
679 /* TBD The tfp should be removed once tf_attach is implemented. */
684 * Get the device table entry based on the device id.
686 * dev_id [in] The device id of the hardware
688 * Returns the pointer to the device parameters.
690 struct bnxt_ulp_device_params *
691 bnxt_ulp_device_params_get(uint32_t dev_id)
693 if (dev_id < BNXT_ULP_MAX_NUM_DEVICES)
694 return &ulp_device_params[dev_id];
698 /* Function to set the flow database to the ulp context. */
700 bnxt_ulp_cntxt_ptr2_flow_db_set(struct bnxt_ulp_context *ulp_ctx,
701 struct bnxt_ulp_flow_db *flow_db)
703 if (!ulp_ctx || !ulp_ctx->cfg_data)
706 ulp_ctx->cfg_data->flow_db = flow_db;
710 /* Function to get the flow database from the ulp context. */
711 struct bnxt_ulp_flow_db *
712 bnxt_ulp_cntxt_ptr2_flow_db_get(struct bnxt_ulp_context *ulp_ctx)
714 if (!ulp_ctx || !ulp_ctx->cfg_data)
717 return ulp_ctx->cfg_data->flow_db;
720 /* Function to get the ulp context from eth device. */
721 struct bnxt_ulp_context *
722 bnxt_ulp_eth_dev_ptr2_cntxt_get(struct rte_eth_dev *dev)
726 bp = (struct bnxt *)dev->data->dev_private;
728 BNXT_TF_DBG(ERR, "Bnxt private data is not initialized\n");
735 bnxt_ulp_cntxt_ptr2_mapper_data_set(struct bnxt_ulp_context *ulp_ctx,
738 if (!ulp_ctx || !ulp_ctx->cfg_data) {
739 BNXT_TF_DBG(ERR, "Invalid ulp context data\n");
743 ulp_ctx->cfg_data->mapper_data = mapper_data;
748 bnxt_ulp_cntxt_ptr2_mapper_data_get(struct bnxt_ulp_context *ulp_ctx)
750 if (!ulp_ctx || !ulp_ctx->cfg_data) {
751 BNXT_TF_DBG(ERR, "Invalid ulp context data\n");
755 return ulp_ctx->cfg_data->mapper_data;
758 /* Function to set the port database to the ulp context. */
760 bnxt_ulp_cntxt_ptr2_port_db_set(struct bnxt_ulp_context *ulp_ctx,
761 struct bnxt_ulp_port_db *port_db)
763 if (!ulp_ctx || !ulp_ctx->cfg_data)
766 ulp_ctx->cfg_data->port_db = port_db;
770 /* Function to get the port database from the ulp context. */
771 struct bnxt_ulp_port_db *
772 bnxt_ulp_cntxt_ptr2_port_db_get(struct bnxt_ulp_context *ulp_ctx)
774 if (!ulp_ctx || !ulp_ctx->cfg_data)
777 return ulp_ctx->cfg_data->port_db;