iavf_common.c

  1// SPDX-License-Identifier: GPL-2.0
  2/* Copyright(c) 2013 - 2018 Intel Corporation. */
  3
  4#include <linux/avf/virtchnl.h>
  5#include <linux/bitfield.h>
  6#include "iavf_type.h"
  7#include "iavf_adminq.h"
  8#include "iavf_prototype.h"
  9
 10/**
 11 * iavf_stat_str - convert status err code to a string
 12 * @hw: pointer to the HW structure
 13 * @stat_err: the status error code to convert
 14 **/
 15const char *iavf_stat_str(struct iavf_hw *hw, enum iavf_status stat_err)
 16{
 17	switch (stat_err) {
 18	case 0:
 19		return "OK";
 20	case IAVF_ERR_NVM:
 21		return "IAVF_ERR_NVM";
 22	case IAVF_ERR_NVM_CHECKSUM:
 23		return "IAVF_ERR_NVM_CHECKSUM";
 24	case IAVF_ERR_PHY:
 25		return "IAVF_ERR_PHY";
 26	case IAVF_ERR_CONFIG:
 27		return "IAVF_ERR_CONFIG";
 28	case IAVF_ERR_PARAM:
 29		return "IAVF_ERR_PARAM";
 30	case IAVF_ERR_MAC_TYPE:
 31		return "IAVF_ERR_MAC_TYPE";
 32	case IAVF_ERR_UNKNOWN_PHY:
 33		return "IAVF_ERR_UNKNOWN_PHY";
 34	case IAVF_ERR_LINK_SETUP:
 35		return "IAVF_ERR_LINK_SETUP";
 36	case IAVF_ERR_ADAPTER_STOPPED:
 37		return "IAVF_ERR_ADAPTER_STOPPED";
 38	case IAVF_ERR_INVALID_MAC_ADDR:
 39		return "IAVF_ERR_INVALID_MAC_ADDR";
 40	case IAVF_ERR_DEVICE_NOT_SUPPORTED:
 41		return "IAVF_ERR_DEVICE_NOT_SUPPORTED";
 42	case IAVF_ERR_PRIMARY_REQUESTS_PENDING:
 43		return "IAVF_ERR_PRIMARY_REQUESTS_PENDING";
 44	case IAVF_ERR_INVALID_LINK_SETTINGS:
 45		return "IAVF_ERR_INVALID_LINK_SETTINGS";
 46	case IAVF_ERR_AUTONEG_NOT_COMPLETE:
 47		return "IAVF_ERR_AUTONEG_NOT_COMPLETE";
 48	case IAVF_ERR_RESET_FAILED:
 49		return "IAVF_ERR_RESET_FAILED";
 50	case IAVF_ERR_SWFW_SYNC:
 51		return "IAVF_ERR_SWFW_SYNC";
 52	case IAVF_ERR_NO_AVAILABLE_VSI:
 53		return "IAVF_ERR_NO_AVAILABLE_VSI";
 54	case IAVF_ERR_NO_MEMORY:
 55		return "IAVF_ERR_NO_MEMORY";
 56	case IAVF_ERR_BAD_PTR:
 57		return "IAVF_ERR_BAD_PTR";
 58	case IAVF_ERR_RING_FULL:
 59		return "IAVF_ERR_RING_FULL";
 60	case IAVF_ERR_INVALID_PD_ID:
 61		return "IAVF_ERR_INVALID_PD_ID";
 62	case IAVF_ERR_INVALID_QP_ID:
 63		return "IAVF_ERR_INVALID_QP_ID";
 64	case IAVF_ERR_INVALID_CQ_ID:
 65		return "IAVF_ERR_INVALID_CQ_ID";
 66	case IAVF_ERR_INVALID_CEQ_ID:
 67		return "IAVF_ERR_INVALID_CEQ_ID";
 68	case IAVF_ERR_INVALID_AEQ_ID:
 69		return "IAVF_ERR_INVALID_AEQ_ID";
 70	case IAVF_ERR_INVALID_SIZE:
 71		return "IAVF_ERR_INVALID_SIZE";
 72	case IAVF_ERR_INVALID_ARP_INDEX:
 73		return "IAVF_ERR_INVALID_ARP_INDEX";
 74	case IAVF_ERR_INVALID_FPM_FUNC_ID:
 75		return "IAVF_ERR_INVALID_FPM_FUNC_ID";
 76	case IAVF_ERR_QP_INVALID_MSG_SIZE:
 77		return "IAVF_ERR_QP_INVALID_MSG_SIZE";
 78	case IAVF_ERR_QP_TOOMANY_WRS_POSTED:
 79		return "IAVF_ERR_QP_TOOMANY_WRS_POSTED";
 80	case IAVF_ERR_INVALID_FRAG_COUNT:
 81		return "IAVF_ERR_INVALID_FRAG_COUNT";
 82	case IAVF_ERR_QUEUE_EMPTY:
 83		return "IAVF_ERR_QUEUE_EMPTY";
 84	case IAVF_ERR_INVALID_ALIGNMENT:
 85		return "IAVF_ERR_INVALID_ALIGNMENT";
 86	case IAVF_ERR_FLUSHED_QUEUE:
 87		return "IAVF_ERR_FLUSHED_QUEUE";
 88	case IAVF_ERR_INVALID_PUSH_PAGE_INDEX:
 89		return "IAVF_ERR_INVALID_PUSH_PAGE_INDEX";
 90	case IAVF_ERR_INVALID_IMM_DATA_SIZE:
 91		return "IAVF_ERR_INVALID_IMM_DATA_SIZE";
 92	case IAVF_ERR_TIMEOUT:
 93		return "IAVF_ERR_TIMEOUT";
 94	case IAVF_ERR_OPCODE_MISMATCH:
 95		return "IAVF_ERR_OPCODE_MISMATCH";
 96	case IAVF_ERR_CQP_COMPL_ERROR:
 97		return "IAVF_ERR_CQP_COMPL_ERROR";
 98	case IAVF_ERR_INVALID_VF_ID:
 99		return "IAVF_ERR_INVALID_VF_ID";
100	case IAVF_ERR_INVALID_HMCFN_ID:
101		return "IAVF_ERR_INVALID_HMCFN_ID";
102	case IAVF_ERR_BACKING_PAGE_ERROR:
103		return "IAVF_ERR_BACKING_PAGE_ERROR";
104	case IAVF_ERR_NO_PBLCHUNKS_AVAILABLE:
105		return "IAVF_ERR_NO_PBLCHUNKS_AVAILABLE";
106	case IAVF_ERR_INVALID_PBLE_INDEX:
107		return "IAVF_ERR_INVALID_PBLE_INDEX";
108	case IAVF_ERR_INVALID_SD_INDEX:
109		return "IAVF_ERR_INVALID_SD_INDEX";
110	case IAVF_ERR_INVALID_PAGE_DESC_INDEX:
111		return "IAVF_ERR_INVALID_PAGE_DESC_INDEX";
112	case IAVF_ERR_INVALID_SD_TYPE:
113		return "IAVF_ERR_INVALID_SD_TYPE";
114	case IAVF_ERR_MEMCPY_FAILED:
115		return "IAVF_ERR_MEMCPY_FAILED";
116	case IAVF_ERR_INVALID_HMC_OBJ_INDEX:
117		return "IAVF_ERR_INVALID_HMC_OBJ_INDEX";
118	case IAVF_ERR_INVALID_HMC_OBJ_COUNT:
119		return "IAVF_ERR_INVALID_HMC_OBJ_COUNT";
120	case IAVF_ERR_INVALID_SRQ_ARM_LIMIT:
121		return "IAVF_ERR_INVALID_SRQ_ARM_LIMIT";
122	case IAVF_ERR_SRQ_ENABLED:
123		return "IAVF_ERR_SRQ_ENABLED";
124	case IAVF_ERR_ADMIN_QUEUE_ERROR:
125		return "IAVF_ERR_ADMIN_QUEUE_ERROR";
126	case IAVF_ERR_ADMIN_QUEUE_TIMEOUT:
127		return "IAVF_ERR_ADMIN_QUEUE_TIMEOUT";
128	case IAVF_ERR_BUF_TOO_SHORT:
129		return "IAVF_ERR_BUF_TOO_SHORT";
130	case IAVF_ERR_ADMIN_QUEUE_FULL:
131		return "IAVF_ERR_ADMIN_QUEUE_FULL";
132	case IAVF_ERR_ADMIN_QUEUE_NO_WORK:
133		return "IAVF_ERR_ADMIN_QUEUE_NO_WORK";
134	case IAVF_ERR_BAD_RDMA_CQE:
135		return "IAVF_ERR_BAD_RDMA_CQE";
136	case IAVF_ERR_NVM_BLANK_MODE:
137		return "IAVF_ERR_NVM_BLANK_MODE";
138	case IAVF_ERR_NOT_IMPLEMENTED:
139		return "IAVF_ERR_NOT_IMPLEMENTED";
140	case IAVF_ERR_PE_DOORBELL_NOT_ENABLED:
141		return "IAVF_ERR_PE_DOORBELL_NOT_ENABLED";
142	case IAVF_ERR_DIAG_TEST_FAILED:
143		return "IAVF_ERR_DIAG_TEST_FAILED";
144	case IAVF_ERR_NOT_READY:
145		return "IAVF_ERR_NOT_READY";
146	case IAVF_NOT_SUPPORTED:
147		return "IAVF_NOT_SUPPORTED";
148	case IAVF_ERR_FIRMWARE_API_VERSION:
149		return "IAVF_ERR_FIRMWARE_API_VERSION";
150	case IAVF_ERR_ADMIN_QUEUE_CRITICAL_ERROR:
151		return "IAVF_ERR_ADMIN_QUEUE_CRITICAL_ERROR";
152	}
153
154	snprintf(hw->err_str, sizeof(hw->err_str), "%d", stat_err);
155	return hw->err_str;
156}
157
158/**
159 * iavf_debug_aq
160 * @hw: debug mask related to admin queue
161 * @mask: debug mask
162 * @desc: pointer to admin queue descriptor
163 * @buffer: pointer to command buffer
164 * @buf_len: max length of buffer
165 *
166 * Dumps debug log about adminq command with descriptor contents.
167 **/
168void iavf_debug_aq(struct iavf_hw *hw, enum iavf_debug_mask mask, void *desc,
169		   void *buffer, u16 buf_len)
170{
171	struct libie_aq_desc *aq_desc = (struct libie_aq_desc *)desc;
172	u8 *buf = (u8 *)buffer;
173
174	if ((!(mask & hw->debug_mask)) || !desc)
175		return;
176
177	iavf_debug(hw, mask,
178		   "AQ CMD: opcode 0x%04X, flags 0x%04X, datalen 0x%04X, retval 0x%04X\n",
179		   le16_to_cpu(aq_desc->opcode),
180		   le16_to_cpu(aq_desc->flags),
181		   le16_to_cpu(aq_desc->datalen),
182		   le16_to_cpu(aq_desc->retval));
183	iavf_debug(hw, mask, "\tcookie (h,l) 0x%08X 0x%08X\n",
184		   le32_to_cpu(aq_desc->cookie_high),
185		   le32_to_cpu(aq_desc->cookie_low));
186	iavf_debug(hw, mask, "\tparam (0,1)  0x%08X 0x%08X\n",
187		   le32_to_cpu(aq_desc->params.generic.param0),
188		   le32_to_cpu(aq_desc->params.generic.param1));
189	iavf_debug(hw, mask, "\taddr (h,l)   0x%08X 0x%08X\n",
190		   le32_to_cpu(aq_desc->params.generic.addr_high),
191		   le32_to_cpu(aq_desc->params.generic.addr_low));
192
193	if (buffer && aq_desc->datalen) {
194		u16 len = le16_to_cpu(aq_desc->datalen);
195
196		iavf_debug(hw, mask, "AQ CMD Buffer:\n");
197		if (buf_len < len)
198			len = buf_len;
199		/* write the full 16-byte chunks */
200		if (hw->debug_mask & mask) {
201			char prefix[27];
202
203			snprintf(prefix, sizeof(prefix),
204				 "iavf %02x:%02x.%x: \t0x",
205				 hw->bus.bus_id,
206				 hw->bus.device,
207				 hw->bus.func);
208
209			print_hex_dump(KERN_INFO, prefix, DUMP_PREFIX_OFFSET,
210				       16, 1, buf, len, false);
211		}
212	}
213}
214
215/**
216 * iavf_check_asq_alive
217 * @hw: pointer to the hw struct
218 *
219 * Returns true if Queue is enabled else false.
220 **/
221bool iavf_check_asq_alive(struct iavf_hw *hw)
222{
223	/* Check if the queue is initialized */
224	if (!hw->aq.asq.count)
225		return false;
226
227	return !!(rd32(hw, IAVF_VF_ATQLEN1) & IAVF_VF_ATQLEN1_ATQENABLE_MASK);
228}
229
230/**
231 * iavf_aq_queue_shutdown
232 * @hw: pointer to the hw struct
233 * @unloading: is the driver unloading itself
234 *
235 * Tell the Firmware that we're shutting down the AdminQ and whether
236 * or not the driver is unloading as well.
237 **/
238enum iavf_status iavf_aq_queue_shutdown(struct iavf_hw *hw, bool unloading)
239{
240	struct iavf_aqc_queue_shutdown *cmd;
241	struct libie_aq_desc desc;
242	enum iavf_status status;
243
244	cmd = libie_aq_raw(&desc);
245	iavf_fill_default_direct_cmd_desc(&desc, iavf_aqc_opc_queue_shutdown);
246
247	if (unloading)
248		cmd->driver_unloading = cpu_to_le32(IAVF_AQ_DRIVER_UNLOADING);
249	status = iavf_asq_send_command(hw, &desc, NULL, 0, NULL);
250
251	return status;
252}
253
254/**
255 * iavf_aq_get_set_rss_lut
256 * @hw: pointer to the hardware structure
257 * @vsi_id: vsi fw index
258 * @pf_lut: for PF table set true, for VSI table set false
259 * @lut: pointer to the lut buffer provided by the caller
260 * @lut_size: size of the lut buffer
261 * @set: set true to set the table, false to get the table
262 *
263 * Internal function to get or set RSS look up table
264 **/
265static enum iavf_status iavf_aq_get_set_rss_lut(struct iavf_hw *hw,
266						u16 vsi_id, bool pf_lut,
267						u8 *lut, u16 lut_size,
268						bool set)
269{
270	struct iavf_aqc_get_set_rss_lut *cmd_resp;
271	struct libie_aq_desc desc;
272	enum iavf_status status;
273	u16 flags;
274
275	cmd_resp = libie_aq_raw(&desc);
276
277	if (set)
278		iavf_fill_default_direct_cmd_desc(&desc,
279						  iavf_aqc_opc_set_rss_lut);
280	else
281		iavf_fill_default_direct_cmd_desc(&desc,
282						  iavf_aqc_opc_get_rss_lut);
283
284	/* Indirect command */
285	desc.flags |= cpu_to_le16((u16)LIBIE_AQ_FLAG_BUF);
286	desc.flags |= cpu_to_le16((u16)LIBIE_AQ_FLAG_RD);
287
288	vsi_id = FIELD_PREP(IAVF_AQC_SET_RSS_LUT_VSI_ID_MASK, vsi_id) |
289		 FIELD_PREP(IAVF_AQC_SET_RSS_LUT_VSI_VALID, 1);
290	cmd_resp->vsi_id = cpu_to_le16(vsi_id);
291
292	if (pf_lut)
293		flags = FIELD_PREP(IAVF_AQC_SET_RSS_LUT_TABLE_TYPE_MASK,
294				   IAVF_AQC_SET_RSS_LUT_TABLE_TYPE_PF);
295	else
296		flags = FIELD_PREP(IAVF_AQC_SET_RSS_LUT_TABLE_TYPE_MASK,
297				   IAVF_AQC_SET_RSS_LUT_TABLE_TYPE_VSI);
298
299	cmd_resp->flags = cpu_to_le16(flags);
300
301	status = iavf_asq_send_command(hw, &desc, lut, lut_size, NULL);
302
303	return status;
304}
305
306/**
307 * iavf_aq_set_rss_lut
308 * @hw: pointer to the hardware structure
309 * @vsi_id: vsi fw index
310 * @pf_lut: for PF table set true, for VSI table set false
311 * @lut: pointer to the lut buffer provided by the caller
312 * @lut_size: size of the lut buffer
313 *
314 * set the RSS lookup table, PF or VSI type
315 **/
316enum iavf_status iavf_aq_set_rss_lut(struct iavf_hw *hw, u16 vsi_id,
317				     bool pf_lut, u8 *lut, u16 lut_size)
318{
319	return iavf_aq_get_set_rss_lut(hw, vsi_id, pf_lut, lut, lut_size, true);
320}
321
322/**
323 * iavf_aq_get_set_rss_key
324 * @hw: pointer to the hw struct
325 * @vsi_id: vsi fw index
326 * @key: pointer to key info struct
327 * @set: set true to set the key, false to get the key
328 *
329 * get the RSS key per VSI
330 **/
331static enum
332iavf_status iavf_aq_get_set_rss_key(struct iavf_hw *hw, u16 vsi_id,
333				    struct iavf_aqc_get_set_rss_key_data *key,
334				    bool set)
335{
336	u16 key_size = sizeof(struct iavf_aqc_get_set_rss_key_data);
337	struct iavf_aqc_get_set_rss_key *cmd_resp;
338	struct libie_aq_desc desc;
339	enum iavf_status status;
340
341	cmd_resp = libie_aq_raw(&desc);
342
343	if (set)
344		iavf_fill_default_direct_cmd_desc(&desc,
345						  iavf_aqc_opc_set_rss_key);
346	else
347		iavf_fill_default_direct_cmd_desc(&desc,
348						  iavf_aqc_opc_get_rss_key);
349
350	/* Indirect command */
351	desc.flags |= cpu_to_le16((u16)LIBIE_AQ_FLAG_BUF);
352	desc.flags |= cpu_to_le16((u16)LIBIE_AQ_FLAG_RD);
353
354	vsi_id = FIELD_PREP(IAVF_AQC_SET_RSS_KEY_VSI_ID_MASK, vsi_id) |
355		 FIELD_PREP(IAVF_AQC_SET_RSS_KEY_VSI_VALID, 1);
356	cmd_resp->vsi_id = cpu_to_le16(vsi_id);
357
358	status = iavf_asq_send_command(hw, &desc, key, key_size, NULL);
359
360	return status;
361}
362
363/**
364 * iavf_aq_set_rss_key
365 * @hw: pointer to the hw struct
366 * @vsi_id: vsi fw index
367 * @key: pointer to key info struct
368 *
369 * set the RSS key per VSI
370 **/
371enum iavf_status iavf_aq_set_rss_key(struct iavf_hw *hw, u16 vsi_id,
372				     struct iavf_aqc_get_set_rss_key_data *key)
373{
374	return iavf_aq_get_set_rss_key(hw, vsi_id, key, true);
375}
376
377/**
378 * iavf_aq_send_msg_to_pf
379 * @hw: pointer to the hardware structure
380 * @v_opcode: opcodes for VF-PF communication
381 * @v_retval: return error code
382 * @msg: pointer to the msg buffer
383 * @msglen: msg length
384 * @cmd_details: pointer to command details
385 *
386 * Send message to PF driver using admin queue. By default, this message
387 * is sent asynchronously, i.e. iavf_asq_send_command() does not wait for
388 * completion before returning.
389 **/
390enum iavf_status iavf_aq_send_msg_to_pf(struct iavf_hw *hw,
391					enum virtchnl_ops v_opcode,
392					enum iavf_status v_retval,
393					u8 *msg, u16 msglen,
394					struct iavf_asq_cmd_details *cmd_details)
395{
396	struct iavf_asq_cmd_details details;
397	struct libie_aq_desc desc;
398	enum iavf_status status;
399
400	iavf_fill_default_direct_cmd_desc(&desc, iavf_aqc_opc_send_msg_to_pf);
401	desc.flags |= cpu_to_le16((u16)LIBIE_AQ_FLAG_SI);
402	desc.cookie_high = cpu_to_le32(v_opcode);
403	desc.cookie_low = cpu_to_le32(v_retval);
404	if (msglen) {
405		desc.flags |= cpu_to_le16((u16)(LIBIE_AQ_FLAG_BUF
406						| LIBIE_AQ_FLAG_RD));
407		if (msglen > IAVF_AQ_LARGE_BUF)
408			desc.flags |= cpu_to_le16((u16)LIBIE_AQ_FLAG_LB);
409		desc.datalen = cpu_to_le16(msglen);
410	}
411	if (!cmd_details) {
412		memset(&details, 0, sizeof(details));
413		details.async = true;
414		cmd_details = &details;
415	}
416	status = iavf_asq_send_command(hw, &desc, msg, msglen, cmd_details);
417	return status;
418}
419
420/**
421 * iavf_vf_parse_hw_config
422 * @hw: pointer to the hardware structure
423 * @msg: pointer to the virtual channel VF resource structure
424 *
425 * Given a VF resource message from the PF, populate the hw struct
426 * with appropriate information.
427 **/
428void iavf_vf_parse_hw_config(struct iavf_hw *hw,
429			     struct virtchnl_vf_resource *msg)
430{
431	struct virtchnl_vsi_resource *vsi_res;
432	int i;
433
434	vsi_res = &msg->vsi_res[0];
435
436	hw->dev_caps.num_vsis = msg->num_vsis;
437	hw->dev_caps.num_rx_qp = msg->num_queue_pairs;
438	hw->dev_caps.num_tx_qp = msg->num_queue_pairs;
439	hw->dev_caps.num_msix_vectors_vf = msg->max_vectors;
440	hw->dev_caps.dcb = msg->vf_cap_flags &
441			   VIRTCHNL_VF_OFFLOAD_L2;
442	hw->dev_caps.fcoe = 0;
443	for (i = 0; i < msg->num_vsis; i++) {
444		if (vsi_res->vsi_type == VIRTCHNL_VSI_SRIOV) {
445			ether_addr_copy(hw->mac.perm_addr,
446					vsi_res->default_mac_addr);
447			ether_addr_copy(hw->mac.addr,
448					vsi_res->default_mac_addr);
449		}
450		vsi_res++;
451	}
452}