1 /*******************************************************************************
3 * Intel Ethernet Controller XL710 Family Linux Driver
4 * Copyright(c) 2013 - 2015 Intel Corporation.
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms and conditions of the GNU General Public License,
8 * version 2, as published by the Free Software Foundation.
10 * This program is distributed in the hope it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
15 * You should have received a copy of the GNU General Public License along
16 * with this program. If not, see <http://www.gnu.org/licenses/>.
18 * The full GNU General Public License is included in this distribution in
19 * the file called "COPYING".
21 * Contact Information:
22 * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
23 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
25 ******************************************************************************/
27 #include <linux/list.h>
28 #include <linux/errno.h>
31 #include "i40e_prototype.h"
32 #include "i40e_client.h"
34 static const char i40e_client_interface_version_str[] = I40E_CLIENT_VERSION_STR;
36 static LIST_HEAD(i40e_devices);
37 static DEFINE_MUTEX(i40e_device_mutex);
39 static LIST_HEAD(i40e_clients);
40 static DEFINE_MUTEX(i40e_client_mutex);
42 static LIST_HEAD(i40e_client_instances);
43 static DEFINE_MUTEX(i40e_client_instance_mutex);
45 static int i40e_client_virtchnl_send(struct i40e_info *ldev,
46 struct i40e_client *client,
47 u32 vf_id, u8 *msg, u16 len);
49 static int i40e_client_setup_qvlist(struct i40e_info *ldev,
50 struct i40e_client *client,
51 struct i40e_qvlist_info *qvlist_info);
53 static void i40e_client_request_reset(struct i40e_info *ldev,
54 struct i40e_client *client,
57 static int i40e_client_update_vsi_ctxt(struct i40e_info *ldev,
58 struct i40e_client *client,
59 bool is_vf, u32 vf_id,
60 u32 flag, u32 valid_flag);
62 static struct i40e_ops i40e_lan_ops = {
63 .virtchnl_send = i40e_client_virtchnl_send,
64 .setup_qvlist = i40e_client_setup_qvlist,
65 .request_reset = i40e_client_request_reset,
66 .update_vsi_ctxt = i40e_client_update_vsi_ctxt,
70 * i40e_client_type_to_vsi_type - convert client type to vsi type
71 * @client_type: the i40e_client type
73 * returns the related vsi type value
76 enum i40e_vsi_type i40e_client_type_to_vsi_type(enum i40e_client_type type)
79 case I40E_CLIENT_IWARP:
80 return I40E_VSI_IWARP;
82 case I40E_CLIENT_VMDQ2:
83 return I40E_VSI_VMDQ2;
86 pr_err("i40e: Client type unknown\n");
87 return I40E_VSI_TYPE_UNKNOWN;
92 * i40e_client_get_params - Get the params that can change at runtime
93 * @vsi: the VSI with the message
94 * @param: clinet param struct
98 int i40e_client_get_params(struct i40e_vsi *vsi, struct i40e_params *params)
100 struct i40e_dcbx_config *dcb_cfg = &vsi->back->hw.local_dcbx_config;
103 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) {
104 u8 tc = dcb_cfg->etscfg.prioritytable[i];
107 /* If TC is not enabled for VSI use TC0 for UP */
108 if (!(vsi->tc_config.enabled_tc & BIT(tc)))
111 qs_handle = le16_to_cpu(vsi->info.qs_handle[tc]);
112 params->qos.prio_qos[i].tc = tc;
113 params->qos.prio_qos[i].qs_handle = qs_handle;
114 if (qs_handle == I40E_AQ_VSI_QS_HANDLE_INVALID) {
115 dev_err(&vsi->back->pdev->dev, "Invalid queue set handle for TC = %d, vsi id = %d\n",
121 params->mtu = vsi->netdev->mtu;
126 * i40e_notify_client_of_vf_msg - call the client vf message callback
127 * @vsi: the VSI with the message
128 * @vf_id: the absolute VF id that sent the message
129 * @msg: message buffer
130 * @len: length of the message
132 * If there is a client to this VSI, call the client
135 i40e_notify_client_of_vf_msg(struct i40e_vsi *vsi, u32 vf_id, u8 *msg, u16 len)
137 struct i40e_client_instance *cdev;
141 mutex_lock(&i40e_client_instance_mutex);
142 list_for_each_entry(cdev, &i40e_client_instances, list) {
143 if (cdev->lan_info.pf == vsi->back) {
145 !cdev->client->ops ||
146 !cdev->client->ops->virtchnl_receive) {
147 dev_dbg(&vsi->back->pdev->dev,
148 "Cannot locate client instance virtual channel receive routine\n");
151 cdev->client->ops->virtchnl_receive(&cdev->lan_info,
156 mutex_unlock(&i40e_client_instance_mutex);
160 * i40e_notify_client_of_l2_param_changes - call the client notify callback
161 * @vsi: the VSI with l2 param changes
163 * If there is a client to this VSI, call the client
165 void i40e_notify_client_of_l2_param_changes(struct i40e_vsi *vsi)
167 struct i40e_client_instance *cdev;
168 struct i40e_params params;
172 memset(¶ms, 0, sizeof(params));
173 i40e_client_get_params(vsi, ¶ms);
174 mutex_lock(&i40e_client_instance_mutex);
175 list_for_each_entry(cdev, &i40e_client_instances, list) {
176 if (cdev->lan_info.pf == vsi->back) {
178 !cdev->client->ops ||
179 !cdev->client->ops->l2_param_change) {
180 dev_dbg(&vsi->back->pdev->dev,
181 "Cannot locate client instance l2_param_change routine\n");
184 cdev->lan_info.params = params;
185 cdev->client->ops->l2_param_change(&cdev->lan_info,
190 mutex_unlock(&i40e_client_instance_mutex);
194 * i40e_notify_client_of_netdev_open - call the client open callback
195 * @vsi: the VSI with netdev opened
197 * If there is a client to this netdev, call the client with open
199 void i40e_notify_client_of_netdev_open(struct i40e_vsi *vsi)
201 struct i40e_client_instance *cdev;
206 mutex_lock(&i40e_client_instance_mutex);
207 list_for_each_entry(cdev, &i40e_client_instances, list) {
208 if (cdev->lan_info.netdev == vsi->netdev) {
210 !cdev->client->ops || !cdev->client->ops->open) {
211 dev_dbg(&vsi->back->pdev->dev,
212 "Cannot locate client instance open routine\n");
215 if (!(test_bit(__I40E_CLIENT_INSTANCE_OPENED,
217 ret = cdev->client->ops->open(&cdev->lan_info,
220 set_bit(__I40E_CLIENT_INSTANCE_OPENED,
225 mutex_unlock(&i40e_client_instance_mutex);
229 * i40e_client_release_qvlist
230 * @ldev: pointer to L2 context.
233 static void i40e_client_release_qvlist(struct i40e_info *ldev)
235 struct i40e_qvlist_info *qvlist_info = ldev->qvlist_info;
238 if (!ldev->qvlist_info)
241 for (i = 0; i < qvlist_info->num_vectors; i++) {
242 struct i40e_pf *pf = ldev->pf;
243 struct i40e_qv_info *qv_info;
246 qv_info = &qvlist_info->qv_info[i];
249 reg_idx = I40E_PFINT_LNKLSTN(qv_info->v_idx - 1);
250 wr32(&pf->hw, reg_idx, I40E_PFINT_LNKLSTN_FIRSTQ_INDX_MASK);
252 kfree(ldev->qvlist_info);
253 ldev->qvlist_info = NULL;
257 * i40e_notify_client_of_netdev_close - call the client close callback
258 * @vsi: the VSI with netdev closed
259 * @reset: true when close called due to a reset pending
261 * If there is a client to this netdev, call the client with close
263 void i40e_notify_client_of_netdev_close(struct i40e_vsi *vsi, bool reset)
265 struct i40e_client_instance *cdev;
269 mutex_lock(&i40e_client_instance_mutex);
270 list_for_each_entry(cdev, &i40e_client_instances, list) {
271 if (cdev->lan_info.netdev == vsi->netdev) {
273 !cdev->client->ops || !cdev->client->ops->close) {
274 dev_dbg(&vsi->back->pdev->dev,
275 "Cannot locate client instance close routine\n");
278 cdev->client->ops->close(&cdev->lan_info, cdev->client,
280 i40e_client_release_qvlist(&cdev->lan_info);
283 mutex_unlock(&i40e_client_instance_mutex);
287 * i40e_notify_client_of_vf_reset - call the client vf reset callback
288 * @pf: PF device pointer
289 * @vf_id: asolute id of VF being reset
291 * If there is a client attached to this PF, notify when a VF is reset
293 void i40e_notify_client_of_vf_reset(struct i40e_pf *pf, u32 vf_id)
295 struct i40e_client_instance *cdev;
299 mutex_lock(&i40e_client_instance_mutex);
300 list_for_each_entry(cdev, &i40e_client_instances, list) {
301 if (cdev->lan_info.pf == pf) {
303 !cdev->client->ops ||
304 !cdev->client->ops->vf_reset) {
305 dev_dbg(&pf->pdev->dev,
306 "Cannot locate client instance VF reset routine\n");
309 cdev->client->ops->vf_reset(&cdev->lan_info,
310 cdev->client, vf_id);
313 mutex_unlock(&i40e_client_instance_mutex);
317 * i40e_notify_client_of_vf_enable - call the client vf notification callback
318 * @pf: PF device pointer
319 * @num_vfs: the number of VFs currently enabled, 0 for disable
321 * If there is a client attached to this PF, call its VF notification routine
323 void i40e_notify_client_of_vf_enable(struct i40e_pf *pf, u32 num_vfs)
325 struct i40e_client_instance *cdev;
329 mutex_lock(&i40e_client_instance_mutex);
330 list_for_each_entry(cdev, &i40e_client_instances, list) {
331 if (cdev->lan_info.pf == pf) {
333 !cdev->client->ops ||
334 !cdev->client->ops->vf_enable) {
335 dev_dbg(&pf->pdev->dev,
336 "Cannot locate client instance VF enable routine\n");
339 cdev->client->ops->vf_enable(&cdev->lan_info,
340 cdev->client, num_vfs);
343 mutex_unlock(&i40e_client_instance_mutex);
347 * i40e_vf_client_capable - ask the client if it likes the specified VF
348 * @pf: PF device pointer
349 * @vf_id: the VF in question
351 * If there is a client of the specified type attached to this PF, call
352 * its vf_capable routine
354 int i40e_vf_client_capable(struct i40e_pf *pf, u32 vf_id,
355 enum i40e_client_type type)
357 struct i40e_client_instance *cdev;
362 mutex_lock(&i40e_client_instance_mutex);
363 list_for_each_entry(cdev, &i40e_client_instances, list) {
364 if (cdev->lan_info.pf == pf) {
366 !cdev->client->ops ||
367 !cdev->client->ops->vf_capable ||
368 !(cdev->client->type == type)) {
369 dev_dbg(&pf->pdev->dev,
370 "Cannot locate client instance VF capability routine\n");
373 capable = cdev->client->ops->vf_capable(&cdev->lan_info,
379 mutex_unlock(&i40e_client_instance_mutex);
384 * i40e_vsi_lookup - finds a matching VSI from the PF list starting at start_vsi
385 * @pf: board private structure
387 * @start_vsi: a VSI pointer from where to start the search
389 * Returns non NULL on success or NULL for failure
391 struct i40e_vsi *i40e_vsi_lookup(struct i40e_pf *pf,
392 enum i40e_vsi_type type,
393 struct i40e_vsi *start_vsi)
395 struct i40e_vsi *vsi;
399 for (i = 0; i < pf->num_alloc_vsi; i++) {
401 if (vsi == start_vsi)
405 for (; i < pf->num_alloc_vsi; i++) {
407 if (vsi && vsi->type == type)
415 * i40e_client_add_instance - add a client instance struct to the instance list
416 * @pf: pointer to the board struct
417 * @client: pointer to a client struct in the client list.
418 * @existing: if there was already an existing instance
420 * Returns cdev ptr on success or if already exists, NULL on failure
423 struct i40e_client_instance *i40e_client_add_instance(struct i40e_pf *pf,
424 struct i40e_client *client,
427 struct i40e_client_instance *cdev;
428 struct netdev_hw_addr *mac = NULL;
429 struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi];
431 mutex_lock(&i40e_client_instance_mutex);
432 list_for_each_entry(cdev, &i40e_client_instances, list) {
433 if ((cdev->lan_info.pf == pf) && (cdev->client == client)) {
438 cdev = kzalloc(sizeof(*cdev), GFP_KERNEL);
442 cdev->lan_info.pf = (void *)pf;
443 cdev->lan_info.netdev = vsi->netdev;
444 cdev->lan_info.pcidev = pf->pdev;
445 cdev->lan_info.fid = pf->hw.pf_id;
446 cdev->lan_info.ftype = I40E_CLIENT_FTYPE_PF;
447 cdev->lan_info.hw_addr = pf->hw.hw_addr;
448 cdev->lan_info.ops = &i40e_lan_ops;
449 cdev->lan_info.version.major = I40E_CLIENT_VERSION_MAJOR;
450 cdev->lan_info.version.minor = I40E_CLIENT_VERSION_MINOR;
451 cdev->lan_info.version.build = I40E_CLIENT_VERSION_BUILD;
452 cdev->lan_info.fw_maj_ver = pf->hw.aq.fw_maj_ver;
453 cdev->lan_info.fw_min_ver = pf->hw.aq.fw_min_ver;
454 cdev->lan_info.fw_build = pf->hw.aq.fw_build;
455 set_bit(__I40E_CLIENT_INSTANCE_NONE, &cdev->state);
457 if (i40e_client_get_params(vsi, &cdev->lan_info.params)) {
463 cdev->lan_info.msix_count = pf->num_iwarp_msix;
464 cdev->lan_info.msix_entries = &pf->msix_entries[pf->iwarp_base_vector];
466 mac = list_first_entry(&cdev->lan_info.netdev->dev_addrs.list,
467 struct netdev_hw_addr, list);
469 ether_addr_copy(cdev->lan_info.lanmac, mac->addr);
471 dev_err(&pf->pdev->dev, "MAC address list is empty!\n");
473 cdev->client = client;
474 INIT_LIST_HEAD(&cdev->list);
475 list_add(&cdev->list, &i40e_client_instances);
477 mutex_unlock(&i40e_client_instance_mutex);
482 * i40e_client_del_instance - removes a client instance from the list
483 * @pf: pointer to the board struct
485 * Returns 0 on success or non-0 on error
488 int i40e_client_del_instance(struct i40e_pf *pf, struct i40e_client *client)
490 struct i40e_client_instance *cdev, *tmp;
493 mutex_lock(&i40e_client_instance_mutex);
494 list_for_each_entry_safe(cdev, tmp, &i40e_client_instances, list) {
495 if ((cdev->lan_info.pf != pf) || (cdev->client != client))
498 dev_info(&pf->pdev->dev, "Deleted instance of Client %s, of dev %d bus=0x%02x func=0x%02x)\n",
499 client->name, pf->hw.pf_id,
500 pf->hw.bus.device, pf->hw.bus.func);
501 list_del(&cdev->list);
506 mutex_unlock(&i40e_client_instance_mutex);
511 * i40e_client_subtask - client maintenance work
512 * @pf: board private structure
514 void i40e_client_subtask(struct i40e_pf *pf)
516 struct i40e_client_instance *cdev;
517 struct i40e_client *client;
518 bool existing = false;
521 if (!(pf->flags & I40E_FLAG_SERVICE_CLIENT_REQUESTED))
523 pf->flags &= ~I40E_FLAG_SERVICE_CLIENT_REQUESTED;
525 /* If we're down or resetting, just bail */
526 if (test_bit(__I40E_DOWN, &pf->state) ||
527 test_bit(__I40E_CONFIG_BUSY, &pf->state))
530 /* Check client state and instantiate client if client registered */
531 mutex_lock(&i40e_client_mutex);
532 list_for_each_entry(client, &i40e_clients, list) {
533 /* first check client is registered */
534 if (!test_bit(__I40E_CLIENT_REGISTERED, &client->state))
537 /* Do we also need the LAN VSI to be up, to create instance */
538 if (!(client->flags & I40E_CLIENT_FLAGS_LAUNCH_ON_PROBE)) {
539 /* check if L2 VSI is up, if not we are not ready */
540 if (test_bit(__I40E_DOWN, &pf->vsi[pf->lan_vsi]->state))
543 dev_warn(&pf->pdev->dev, "This client %s is being instanciated at probe\n",
547 /* Add the client instance to the instance list */
548 cdev = i40e_client_add_instance(pf, client, &existing);
553 /* Also up the ref_cnt for no. of instances of this
556 atomic_inc(&client->ref_cnt);
557 dev_info(&pf->pdev->dev, "Added instance of Client %s to PF%d bus=0x%02x func=0x%02x\n",
558 client->name, pf->hw.pf_id,
559 pf->hw.bus.device, pf->hw.bus.func);
562 /* Send an Open request to the client */
563 atomic_inc(&cdev->ref_cnt);
564 if (client->ops && client->ops->open)
565 ret = client->ops->open(&cdev->lan_info, client);
566 atomic_dec(&cdev->ref_cnt);
568 set_bit(__I40E_CLIENT_INSTANCE_OPENED, &cdev->state);
570 /* remove client instance */
571 i40e_client_del_instance(pf, client);
572 atomic_dec(&client->ref_cnt);
576 mutex_unlock(&i40e_client_mutex);
580 * i40e_lan_add_device - add a lan device struct to the list of lan devices
581 * @pf: pointer to the board struct
583 * Returns 0 on success or none 0 on error
585 int i40e_lan_add_device(struct i40e_pf *pf)
587 struct i40e_device *ldev;
590 mutex_lock(&i40e_device_mutex);
591 list_for_each_entry(ldev, &i40e_devices, list) {
592 if (ldev->pf == pf) {
597 ldev = kzalloc(sizeof(*ldev), GFP_KERNEL);
603 INIT_LIST_HEAD(&ldev->list);
604 list_add(&ldev->list, &i40e_devices);
605 dev_info(&pf->pdev->dev, "Added LAN device PF%d bus=0x%02x func=0x%02x\n",
606 pf->hw.pf_id, pf->hw.bus.device, pf->hw.bus.func);
608 /* Since in some cases register may have happened before a device gets
609 * added, we can schedule a subtask to go initiate the clients if
610 * they can be launched at probe time.
612 pf->flags |= I40E_FLAG_SERVICE_CLIENT_REQUESTED;
613 i40e_service_event_schedule(pf);
616 mutex_unlock(&i40e_device_mutex);
621 * i40e_lan_del_device - removes a lan device from the device list
622 * @pf: pointer to the board struct
624 * Returns 0 on success or non-0 on error
626 int i40e_lan_del_device(struct i40e_pf *pf)
628 struct i40e_device *ldev, *tmp;
631 mutex_lock(&i40e_device_mutex);
632 list_for_each_entry_safe(ldev, tmp, &i40e_devices, list) {
633 if (ldev->pf == pf) {
634 dev_info(&pf->pdev->dev, "Deleted LAN device PF%d bus=0x%02x func=0x%02x\n",
635 pf->hw.pf_id, pf->hw.bus.device,
637 list_del(&ldev->list);
644 mutex_unlock(&i40e_device_mutex);
649 * i40e_client_release - release client specific resources
650 * @client: pointer to the registered client
652 * Return 0 on success or < 0 on error
654 static int i40e_client_release(struct i40e_client *client)
656 struct i40e_client_instance *cdev, *tmp;
657 struct i40e_pf *pf = NULL;
660 LIST_HEAD(cdevs_tmp);
662 mutex_lock(&i40e_client_instance_mutex);
663 list_for_each_entry_safe(cdev, tmp, &i40e_client_instances, list) {
664 if (strncmp(cdev->client->name, client->name,
665 I40E_CLIENT_STR_LENGTH))
667 if (test_bit(__I40E_CLIENT_INSTANCE_OPENED, &cdev->state)) {
668 if (atomic_read(&cdev->ref_cnt) > 0) {
669 ret = I40E_ERR_NOT_READY;
672 pf = (struct i40e_pf *)cdev->lan_info.pf;
673 if (client->ops && client->ops->close)
674 client->ops->close(&cdev->lan_info, client,
676 i40e_client_release_qvlist(&cdev->lan_info);
677 clear_bit(__I40E_CLIENT_INSTANCE_OPENED, &cdev->state);
679 dev_warn(&pf->pdev->dev,
680 "Client %s instance for PF id %d closed\n",
681 client->name, pf->hw.pf_id);
683 /* delete the client instance from the list */
684 list_del(&cdev->list);
685 list_add(&cdev->list, &cdevs_tmp);
686 atomic_dec(&client->ref_cnt);
687 dev_info(&pf->pdev->dev, "Deleted client instance of Client %s\n",
691 mutex_unlock(&i40e_client_instance_mutex);
693 /* free the client device and release its vsi */
694 list_for_each_entry_safe(cdev, tmp, &cdevs_tmp, list) {
701 * i40e_client_prepare - prepare client specific resources
702 * @client: pointer to the registered client
704 * Return 0 on success or < 0 on error
706 static int i40e_client_prepare(struct i40e_client *client)
708 struct i40e_device *ldev;
712 mutex_lock(&i40e_device_mutex);
713 list_for_each_entry(ldev, &i40e_devices, list) {
715 /* Start the client subtask */
716 pf->flags |= I40E_FLAG_SERVICE_CLIENT_REQUESTED;
717 i40e_service_event_schedule(pf);
719 mutex_unlock(&i40e_device_mutex);
724 * i40e_client_virtchnl_send - TBD
725 * @ldev: pointer to L2 context
726 * @client: Client pointer
727 * @vf_id: absolute VF identifier
728 * @msg: message buffer
729 * @len: length of message buffer
731 * Return 0 on success or < 0 on error
733 static int i40e_client_virtchnl_send(struct i40e_info *ldev,
734 struct i40e_client *client,
735 u32 vf_id, u8 *msg, u16 len)
737 struct i40e_pf *pf = ldev->pf;
738 struct i40e_hw *hw = &pf->hw;
741 err = i40e_aq_send_msg_to_vf(hw, vf_id, I40E_VIRTCHNL_OP_IWARP,
744 dev_err(&pf->pdev->dev, "Unable to send iWarp message to VF, error %d, aq status %d\n",
745 err, hw->aq.asq_last_status);
751 * i40e_client_setup_qvlist
752 * @ldev: pointer to L2 context.
753 * @client: Client pointer.
754 * @qv_info: queue and vector list
756 * Return 0 on success or < 0 on error
758 static int i40e_client_setup_qvlist(struct i40e_info *ldev,
759 struct i40e_client *client,
760 struct i40e_qvlist_info *qvlist_info)
762 struct i40e_pf *pf = ldev->pf;
763 struct i40e_hw *hw = &pf->hw;
764 struct i40e_qv_info *qv_info;
765 u32 v_idx, i, reg_idx, reg;
768 size = sizeof(struct i40e_qvlist_info) +
769 (sizeof(struct i40e_qv_info) * (qvlist_info->num_vectors - 1));
770 ldev->qvlist_info = kzalloc(size, GFP_KERNEL);
771 ldev->qvlist_info->num_vectors = qvlist_info->num_vectors;
773 for (i = 0; i < qvlist_info->num_vectors; i++) {
774 qv_info = &qvlist_info->qv_info[i];
777 v_idx = qv_info->v_idx;
779 /* Validate vector id belongs to this client */
780 if ((v_idx >= (pf->iwarp_base_vector + pf->num_iwarp_msix)) ||
781 (v_idx < pf->iwarp_base_vector))
784 ldev->qvlist_info->qv_info[i] = *qv_info;
785 reg_idx = I40E_PFINT_LNKLSTN(v_idx - 1);
787 if (qv_info->ceq_idx == I40E_QUEUE_INVALID_IDX) {
788 /* Special case - No CEQ mapped on this vector */
789 wr32(hw, reg_idx, I40E_PFINT_LNKLSTN_FIRSTQ_INDX_MASK);
791 reg = (qv_info->ceq_idx &
792 I40E_PFINT_LNKLSTN_FIRSTQ_INDX_MASK) |
793 (I40E_QUEUE_TYPE_PE_CEQ <<
794 I40E_PFINT_LNKLSTN_FIRSTQ_TYPE_SHIFT);
795 wr32(hw, reg_idx, reg);
797 reg = (I40E_PFINT_CEQCTL_CAUSE_ENA_MASK |
798 (v_idx << I40E_PFINT_CEQCTL_MSIX_INDX_SHIFT) |
800 I40E_PFINT_CEQCTL_ITR_INDX_SHIFT) |
801 (I40E_QUEUE_END_OF_LIST <<
802 I40E_PFINT_CEQCTL_NEXTQ_INDX_SHIFT));
803 wr32(hw, I40E_PFINT_CEQCTL(qv_info->ceq_idx), reg);
805 if (qv_info->aeq_idx != I40E_QUEUE_INVALID_IDX) {
806 reg = (I40E_PFINT_AEQCTL_CAUSE_ENA_MASK |
807 (v_idx << I40E_PFINT_AEQCTL_MSIX_INDX_SHIFT) |
809 I40E_PFINT_AEQCTL_ITR_INDX_SHIFT));
811 wr32(hw, I40E_PFINT_AEQCTL, reg);
817 kfree(ldev->qvlist_info);
818 ldev->qvlist_info = NULL;
823 * i40e_client_request_reset
824 * @ldev: pointer to L2 context.
825 * @client: Client pointer.
826 * @level: reset level
828 static void i40e_client_request_reset(struct i40e_info *ldev,
829 struct i40e_client *client,
832 struct i40e_pf *pf = ldev->pf;
834 switch (reset_level) {
835 case I40E_CLIENT_RESET_LEVEL_PF:
836 set_bit(__I40E_PF_RESET_REQUESTED, &pf->state);
838 case I40E_CLIENT_RESET_LEVEL_CORE:
839 set_bit(__I40E_PF_RESET_REQUESTED, &pf->state);
842 dev_warn(&pf->pdev->dev,
843 "Client %s instance for PF id %d request an unsupported reset: %d.\n",
844 client->name, pf->hw.pf_id, reset_level);
848 i40e_service_event_schedule(pf);
852 * i40e_client_update_vsi_ctxt
853 * @ldev: pointer to L2 context.
854 * @client: Client pointer.
855 * @is_vf: if this for the VF
856 * @vf_id: if is_vf true this carries the vf_id
857 * @flag: Any device level setting that needs to be done for PE
858 * @valid_flag: Bits in this match up and enable changing of flag bits
860 * Return 0 on success or < 0 on error
862 static int i40e_client_update_vsi_ctxt(struct i40e_info *ldev,
863 struct i40e_client *client,
864 bool is_vf, u32 vf_id,
865 u32 flag, u32 valid_flag)
867 struct i40e_pf *pf = ldev->pf;
868 struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi];
869 struct i40e_vsi_context ctxt;
873 /* TODO: for now do not allow setting VF's VSI setting */
877 ctxt.seid = pf->main_vsi_seid;
878 ctxt.pf_num = pf->hw.pf_id;
879 err = i40e_aq_get_vsi_params(&pf->hw, &ctxt, NULL);
880 ctxt.flags = I40E_AQ_VSI_TYPE_PF;
882 dev_info(&pf->pdev->dev,
883 "couldn't get PF vsi config, err %s aq_err %s\n",
884 i40e_stat_str(&pf->hw, err),
886 pf->hw.aq.asq_last_status));
890 if ((valid_flag & I40E_CLIENT_VSI_FLAG_TCP_PACKET_ENABLE) &&
891 (flag & I40E_CLIENT_VSI_FLAG_TCP_PACKET_ENABLE)) {
892 ctxt.info.valid_sections =
893 cpu_to_le16(I40E_AQ_VSI_PROP_QUEUE_OPT_VALID);
894 ctxt.info.queueing_opt_flags |= I40E_AQ_VSI_QUE_OPT_TCP_ENA;
895 } else if ((valid_flag & I40E_CLIENT_VSI_FLAG_TCP_PACKET_ENABLE) &&
896 !(flag & I40E_CLIENT_VSI_FLAG_TCP_PACKET_ENABLE)) {
897 ctxt.info.valid_sections =
898 cpu_to_le16(I40E_AQ_VSI_PROP_QUEUE_OPT_VALID);
899 ctxt.info.queueing_opt_flags &= ~I40E_AQ_VSI_QUE_OPT_TCP_ENA;
902 dev_warn(&pf->pdev->dev,
903 "Client %s instance for PF id %d request an unsupported Config: %x.\n",
904 client->name, pf->hw.pf_id, flag);
908 err = i40e_aq_update_vsi_params(&vsi->back->hw, &ctxt, NULL);
910 dev_info(&pf->pdev->dev,
911 "update VSI ctxt for PE failed, err %s aq_err %s\n",
912 i40e_stat_str(&pf->hw, err),
914 pf->hw.aq.asq_last_status));
921 * i40e_register_client - Register a i40e client driver with the L2 driver
922 * @client: pointer to the i40e_client struct
924 * Returns 0 on success or non-0 on error
926 int i40e_register_client(struct i40e_client *client)
929 enum i40e_vsi_type vsi_type;
936 if (strlen(client->name) == 0) {
937 pr_info("i40e: Failed to register client with no name\n");
942 mutex_lock(&i40e_client_mutex);
943 if (i40e_client_is_registered(client)) {
944 pr_info("i40e: Client %s has already been registered!\n",
946 mutex_unlock(&i40e_client_mutex);
951 if ((client->version.major != I40E_CLIENT_VERSION_MAJOR) ||
952 (client->version.minor != I40E_CLIENT_VERSION_MINOR)) {
953 pr_info("i40e: Failed to register client %s due to mismatched client interface version\n",
955 pr_info("Client is using version: %02d.%02d.%02d while LAN driver supports %s\n",
956 client->version.major, client->version.minor,
957 client->version.build,
958 i40e_client_interface_version_str);
959 mutex_unlock(&i40e_client_mutex);
964 vsi_type = i40e_client_type_to_vsi_type(client->type);
965 if (vsi_type == I40E_VSI_TYPE_UNKNOWN) {
966 pr_info("i40e: Failed to register client %s due to unknown client type %d\n",
967 client->name, client->type);
968 mutex_unlock(&i40e_client_mutex);
972 list_add(&client->list, &i40e_clients);
973 set_bit(__I40E_CLIENT_REGISTERED, &client->state);
974 mutex_unlock(&i40e_client_mutex);
976 if (i40e_client_prepare(client)) {
981 pr_info("i40e: Registered client %s with return code %d\n",
986 EXPORT_SYMBOL(i40e_register_client);
989 * i40e_unregister_client - Unregister a i40e client driver with the L2 driver
990 * @client: pointer to the i40e_client struct
992 * Returns 0 on success or non-0 on error
994 int i40e_unregister_client(struct i40e_client *client)
998 /* When a unregister request comes through we would have to send
999 * a close for each of the client instances that were opened.
1000 * client_release function is called to handle this.
1002 mutex_lock(&i40e_client_mutex);
1003 if (!client || i40e_client_release(client)) {
1008 /* TODO: check if device is in reset, or if that matters? */
1009 if (!i40e_client_is_registered(client)) {
1010 pr_info("i40e: Client %s has not been registered\n",
1012 mutex_unlock(&i40e_client_mutex);
1016 if (atomic_read(&client->ref_cnt) == 0) {
1017 clear_bit(__I40E_CLIENT_REGISTERED, &client->state);
1018 list_del(&client->list);
1019 pr_info("i40e: Unregistered client %s with return code %d\n",
1022 ret = I40E_ERR_NOT_READY;
1023 pr_err("i40e: Client %s failed unregister - client has open instances\n",
1028 mutex_unlock(&i40e_client_mutex);
1031 EXPORT_SYMBOL(i40e_unregister_client);