1 /*******************************************************************************
3 Copyright (c) 2013 - 2015, Intel Corporation
6 Redistribution and use in source and binary forms, with or without
7 modification, are permitted provided that the following conditions are met:
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13 notice, this list of conditions and the following disclaimer in the
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16 3. Neither the name of the Intel Corporation nor the names of its
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18 this software without specific prior written permission.
20 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
21 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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30 POSSIBILITY OF SUCH DAMAGE.
32 ***************************************************************************/
37 * fm10k_stop_hw_vf - Stop Tx/Rx units
38 * @hw: pointer to hardware structure
41 STATIC s32 fm10k_stop_hw_vf(struct fm10k_hw *hw)
43 u8 *perm_addr = hw->mac.perm_addr;
44 u32 bal = 0, bah = 0, tdlen;
48 DEBUGFUNC("fm10k_stop_hw_vf");
50 /* we need to disable the queues before taking further steps */
51 err = fm10k_stop_hw_generic(hw);
55 /* If permanent address is set then we need to restore it */
56 if (FM10K_IS_VALID_ETHER_ADDR(perm_addr)) {
57 bal = (((u32)perm_addr[3]) << 24) |
58 (((u32)perm_addr[4]) << 16) |
59 (((u32)perm_addr[5]) << 8);
60 bah = (((u32)0xFF) << 24) |
61 (((u32)perm_addr[0]) << 16) |
62 (((u32)perm_addr[1]) << 8) |
66 /* restore default itr_scale for next VF initialization */
67 tdlen = hw->mac.itr_scale << FM10K_TDLEN_ITR_SCALE_SHIFT;
69 /* The queues have already been disabled so we just need to
70 * update their base address registers
72 for (i = 0; i < hw->mac.max_queues; i++) {
73 FM10K_WRITE_REG(hw, FM10K_TDBAL(i), bal);
74 FM10K_WRITE_REG(hw, FM10K_TDBAH(i), bah);
75 FM10K_WRITE_REG(hw, FM10K_RDBAL(i), bal);
76 FM10K_WRITE_REG(hw, FM10K_RDBAH(i), bah);
77 FM10K_WRITE_REG(hw, FM10K_TDLEN(i), tdlen);
84 * fm10k_reset_hw_vf - VF hardware reset
85 * @hw: pointer to hardware structure
87 * This function should return the hardware to a state similar to the
88 * one it is in after just being initialized.
90 STATIC s32 fm10k_reset_hw_vf(struct fm10k_hw *hw)
94 DEBUGFUNC("fm10k_reset_hw_vf");
96 /* shut down queues we own and reset DMA configuration */
97 err = fm10k_stop_hw_vf(hw);
101 /* Inititate VF reset */
102 FM10K_WRITE_REG(hw, FM10K_VFCTRL, FM10K_VFCTRL_RST);
104 /* Flush write and allow 100us for reset to complete */
105 FM10K_WRITE_FLUSH(hw);
106 usec_delay(FM10K_RESET_TIMEOUT);
108 /* Clear reset bit and verify it was cleared */
109 FM10K_WRITE_REG(hw, FM10K_VFCTRL, 0);
110 if (FM10K_READ_REG(hw, FM10K_VFCTRL) & FM10K_VFCTRL_RST)
111 err = FM10K_ERR_RESET_FAILED;
117 * fm10k_init_hw_vf - VF hardware initialization
118 * @hw: pointer to hardware structure
121 STATIC s32 fm10k_init_hw_vf(struct fm10k_hw *hw)
123 u32 tqdloc, tqdloc0 = ~FM10K_READ_REG(hw, FM10K_TQDLOC(0));
127 DEBUGFUNC("fm10k_init_hw_vf");
129 /* verify we have at least 1 queue */
130 if (!~FM10K_READ_REG(hw, FM10K_TXQCTL(0)) ||
131 !~FM10K_READ_REG(hw, FM10K_RXQCTL(0))) {
132 err = FM10K_ERR_NO_RESOURCES;
133 goto reset_max_queues;
136 /* determine how many queues we have */
137 for (i = 1; tqdloc0 && (i < FM10K_MAX_QUEUES_POOL); i++) {
138 /* verify the Descriptor cache offsets are increasing */
139 tqdloc = ~FM10K_READ_REG(hw, FM10K_TQDLOC(i));
140 if (!tqdloc || (tqdloc == tqdloc0))
143 /* check to verify the PF doesn't own any of our queues */
144 if (!~FM10K_READ_REG(hw, FM10K_TXQCTL(i)) ||
145 !~FM10K_READ_REG(hw, FM10K_RXQCTL(i)))
149 /* shut down queues we own and reset DMA configuration */
150 err = fm10k_disable_queues_generic(hw, i);
152 goto reset_max_queues;
154 /* record maximum queue count */
155 hw->mac.max_queues = i;
157 /* fetch default VLAN and ITR scale */
158 hw->mac.default_vid = (FM10K_READ_REG(hw, FM10K_TXQCTL(0)) &
159 FM10K_TXQCTL_VID_MASK) >> FM10K_TXQCTL_VID_SHIFT;
160 hw->mac.itr_scale = (FM10K_READ_REG(hw, FM10K_TDLEN(0)) &
161 FM10K_TDLEN_ITR_SCALE_MASK) >>
162 FM10K_TDLEN_ITR_SCALE_SHIFT;
164 return FM10K_SUCCESS;
167 hw->mac.max_queues = 0;
173 * fm10k_is_slot_appropriate_vf - Indicate appropriate slot for this SKU
174 * @hw: pointer to hardware structure
176 * Looks at the PCIe bus info to confirm whether or not this slot can support
177 * the necessary bandwidth for this device. Since the VF has no control over
178 * the "slot" it is in, always indicate that the slot is appropriate.
180 STATIC bool fm10k_is_slot_appropriate_vf(struct fm10k_hw *hw)
182 UNREFERENCED_1PARAMETER(hw);
183 DEBUGFUNC("fm10k_is_slot_appropriate_vf");
188 /* This structure defines the attibutes to be parsed below */
189 const struct fm10k_tlv_attr fm10k_mac_vlan_msg_attr[] = {
190 FM10K_TLV_ATTR_U32(FM10K_MAC_VLAN_MSG_VLAN),
191 FM10K_TLV_ATTR_BOOL(FM10K_MAC_VLAN_MSG_SET),
192 FM10K_TLV_ATTR_MAC_ADDR(FM10K_MAC_VLAN_MSG_MAC),
193 FM10K_TLV_ATTR_MAC_ADDR(FM10K_MAC_VLAN_MSG_DEFAULT_MAC),
194 FM10K_TLV_ATTR_MAC_ADDR(FM10K_MAC_VLAN_MSG_MULTICAST),
199 * fm10k_update_vlan_vf - Update status of VLAN ID in VLAN filter table
200 * @hw: pointer to hardware structure
201 * @vid: VLAN ID to add to table
202 * @vsi: Reserved, should always be 0
203 * @set: Indicates if this is a set or clear operation
205 * This function adds or removes the corresponding VLAN ID from the VLAN
206 * filter table for this VF.
208 STATIC s32 fm10k_update_vlan_vf(struct fm10k_hw *hw, u32 vid, u8 vsi, bool set)
210 struct fm10k_mbx_info *mbx = &hw->mbx;
213 /* verify the index is not set */
215 return FM10K_ERR_PARAM;
217 /* verify upper 4 bits of vid and length are 0 */
218 if ((vid << 16 | vid) >> 28)
219 return FM10K_ERR_PARAM;
221 /* encode set bit into the VLAN ID */
223 vid |= FM10K_VLAN_CLEAR;
225 /* generate VLAN request */
226 fm10k_tlv_msg_init(msg, FM10K_VF_MSG_ID_MAC_VLAN);
227 fm10k_tlv_attr_put_u32(msg, FM10K_MAC_VLAN_MSG_VLAN, vid);
229 /* load onto outgoing mailbox */
230 return mbx->ops.enqueue_tx(hw, mbx, msg);
234 * fm10k_msg_mac_vlan_vf - Read device MAC address from mailbox message
235 * @hw: pointer to the HW structure
236 * @results: Attributes for message
237 * @mbx: unused mailbox data
239 * This function should determine the MAC address for the VF
241 s32 fm10k_msg_mac_vlan_vf(struct fm10k_hw *hw, u32 **results,
242 struct fm10k_mbx_info *mbx)
244 u8 perm_addr[ETH_ALEN];
248 UNREFERENCED_1PARAMETER(mbx);
249 DEBUGFUNC("fm10k_msg_mac_vlan_vf");
251 /* record MAC address requested */
252 err = fm10k_tlv_attr_get_mac_vlan(
253 results[FM10K_MAC_VLAN_MSG_DEFAULT_MAC],
258 memcpy(hw->mac.perm_addr, perm_addr, ETH_ALEN);
259 hw->mac.default_vid = vid & (FM10K_VLAN_TABLE_VID_MAX - 1);
260 hw->mac.vlan_override = !!(vid & FM10K_VLAN_CLEAR);
262 return FM10K_SUCCESS;
266 * fm10k_read_mac_addr_vf - Read device MAC address
267 * @hw: pointer to the HW structure
269 * This function should determine the MAC address for the VF
271 STATIC s32 fm10k_read_mac_addr_vf(struct fm10k_hw *hw)
273 u8 perm_addr[ETH_ALEN];
276 DEBUGFUNC("fm10k_read_mac_addr_vf");
278 base_addr = FM10K_READ_REG(hw, FM10K_TDBAL(0));
280 /* last byte should be 0 */
282 return FM10K_ERR_INVALID_MAC_ADDR;
284 perm_addr[3] = (u8)(base_addr >> 24);
285 perm_addr[4] = (u8)(base_addr >> 16);
286 perm_addr[5] = (u8)(base_addr >> 8);
288 base_addr = FM10K_READ_REG(hw, FM10K_TDBAH(0));
290 /* first byte should be all 1's */
291 if ((~base_addr) >> 24)
292 return FM10K_ERR_INVALID_MAC_ADDR;
294 perm_addr[0] = (u8)(base_addr >> 16);
295 perm_addr[1] = (u8)(base_addr >> 8);
296 perm_addr[2] = (u8)(base_addr);
298 memcpy(hw->mac.perm_addr, perm_addr, ETH_ALEN);
299 memcpy(hw->mac.addr, perm_addr, ETH_ALEN);
301 return FM10K_SUCCESS;
305 * fm10k_update_uc_addr_vf - Update device unicast addresses
306 * @hw: pointer to the HW structure
308 * @mac: MAC address to add/remove from table
309 * @vid: VLAN ID to add/remove from table
310 * @add: Indicates if this is an add or remove operation
311 * @flags: flags field to indicate add and secure - unused
313 * This function is used to add or remove unicast MAC addresses for
316 STATIC s32 fm10k_update_uc_addr_vf(struct fm10k_hw *hw, u16 glort,
317 const u8 *mac, u16 vid, bool add, u8 flags)
319 struct fm10k_mbx_info *mbx = &hw->mbx;
322 DEBUGFUNC("fm10k_update_uc_addr_vf");
324 UNREFERENCED_2PARAMETER(glort, flags);
326 /* verify VLAN ID is valid */
327 if (vid >= FM10K_VLAN_TABLE_VID_MAX)
328 return FM10K_ERR_PARAM;
330 /* verify MAC address is valid */
331 if (!FM10K_IS_VALID_ETHER_ADDR(mac))
332 return FM10K_ERR_PARAM;
334 /* verify we are not locked down on the MAC address */
335 if (FM10K_IS_VALID_ETHER_ADDR(hw->mac.perm_addr) &&
336 memcmp(hw->mac.perm_addr, mac, ETH_ALEN))
337 return FM10K_ERR_PARAM;
339 /* add bit to notify us if this is a set or clear operation */
341 vid |= FM10K_VLAN_CLEAR;
343 /* generate VLAN request */
344 fm10k_tlv_msg_init(msg, FM10K_VF_MSG_ID_MAC_VLAN);
345 fm10k_tlv_attr_put_mac_vlan(msg, FM10K_MAC_VLAN_MSG_MAC, mac, vid);
347 /* load onto outgoing mailbox */
348 return mbx->ops.enqueue_tx(hw, mbx, msg);
352 * fm10k_update_mc_addr_vf - Update device multicast addresses
353 * @hw: pointer to the HW structure
355 * @mac: MAC address to add/remove from table
356 * @vid: VLAN ID to add/remove from table
357 * @add: Indicates if this is an add or remove operation
359 * This function is used to add or remove multicast MAC addresses for
362 STATIC s32 fm10k_update_mc_addr_vf(struct fm10k_hw *hw, u16 glort,
363 const u8 *mac, u16 vid, bool add)
365 struct fm10k_mbx_info *mbx = &hw->mbx;
368 DEBUGFUNC("fm10k_update_uc_addr_vf");
370 UNREFERENCED_1PARAMETER(glort);
372 /* verify VLAN ID is valid */
373 if (vid >= FM10K_VLAN_TABLE_VID_MAX)
374 return FM10K_ERR_PARAM;
376 /* verify multicast address is valid */
377 if (!FM10K_IS_MULTICAST_ETHER_ADDR(mac))
378 return FM10K_ERR_PARAM;
380 /* add bit to notify us if this is a set or clear operation */
382 vid |= FM10K_VLAN_CLEAR;
384 /* generate VLAN request */
385 fm10k_tlv_msg_init(msg, FM10K_VF_MSG_ID_MAC_VLAN);
386 fm10k_tlv_attr_put_mac_vlan(msg, FM10K_MAC_VLAN_MSG_MULTICAST,
389 /* load onto outgoing mailbox */
390 return mbx->ops.enqueue_tx(hw, mbx, msg);
394 * fm10k_update_int_moderator_vf - Request update of interrupt moderator list
395 * @hw: pointer to hardware structure
397 * This function will issue a request to the PF to rescan our MSI-X table
398 * and to update the interrupt moderator linked list.
400 STATIC void fm10k_update_int_moderator_vf(struct fm10k_hw *hw)
402 struct fm10k_mbx_info *mbx = &hw->mbx;
405 /* generate MSI-X request */
406 fm10k_tlv_msg_init(msg, FM10K_VF_MSG_ID_MSIX);
408 /* load onto outgoing mailbox */
409 mbx->ops.enqueue_tx(hw, mbx, msg);
412 /* This structure defines the attibutes to be parsed below */
413 const struct fm10k_tlv_attr fm10k_lport_state_msg_attr[] = {
414 FM10K_TLV_ATTR_BOOL(FM10K_LPORT_STATE_MSG_DISABLE),
415 FM10K_TLV_ATTR_U8(FM10K_LPORT_STATE_MSG_XCAST_MODE),
416 FM10K_TLV_ATTR_BOOL(FM10K_LPORT_STATE_MSG_READY),
421 * fm10k_msg_lport_state_vf - Message handler for lport_state message from PF
422 * @hw: Pointer to hardware structure
423 * @results: pointer array containing parsed data
424 * @mbx: Pointer to mailbox information structure
426 * This handler is meant to capture the indication from the PF that we
427 * are ready to bring up the interface.
429 s32 fm10k_msg_lport_state_vf(struct fm10k_hw *hw, u32 **results,
430 struct fm10k_mbx_info *mbx)
432 UNREFERENCED_1PARAMETER(mbx);
433 DEBUGFUNC("fm10k_msg_lport_state_vf");
435 hw->mac.dglort_map = !results[FM10K_LPORT_STATE_MSG_READY] ?
436 FM10K_DGLORTMAP_NONE : FM10K_DGLORTMAP_ZERO;
438 return FM10K_SUCCESS;
442 * fm10k_update_lport_state_vf - Update device state in lower device
443 * @hw: pointer to the HW structure
445 * @count: number of logical ports to enable - unused (always 1)
446 * @enable: boolean value indicating if this is an enable or disable request
448 * Notify the lower device of a state change. If the lower device is
449 * enabled we can add filters, if it is disabled all filters for this
450 * logical port are flushed.
452 STATIC s32 fm10k_update_lport_state_vf(struct fm10k_hw *hw, u16 glort,
453 u16 count, bool enable)
455 struct fm10k_mbx_info *mbx = &hw->mbx;
458 UNREFERENCED_2PARAMETER(glort, count);
459 DEBUGFUNC("fm10k_update_lport_state_vf");
461 /* reset glort mask 0 as we have to wait to be enabled */
462 hw->mac.dglort_map = FM10K_DGLORTMAP_NONE;
464 /* generate port state request */
465 fm10k_tlv_msg_init(msg, FM10K_VF_MSG_ID_LPORT_STATE);
467 fm10k_tlv_attr_put_bool(msg, FM10K_LPORT_STATE_MSG_DISABLE);
469 /* load onto outgoing mailbox */
470 return mbx->ops.enqueue_tx(hw, mbx, msg);
474 * fm10k_update_xcast_mode_vf - Request update of multicast mode
475 * @hw: pointer to hardware structure
477 * @mode: integer value indicating mode being requested
479 * This function will attempt to request a higher mode for the port
480 * so that it can enable either multicast, multicast promiscuous, or
481 * promiscuous mode of operation.
483 STATIC s32 fm10k_update_xcast_mode_vf(struct fm10k_hw *hw, u16 glort, u8 mode)
485 struct fm10k_mbx_info *mbx = &hw->mbx;
488 UNREFERENCED_1PARAMETER(glort);
489 DEBUGFUNC("fm10k_update_xcast_mode_vf");
491 if (mode > FM10K_XCAST_MODE_NONE)
492 return FM10K_ERR_PARAM;
494 /* generate message requesting to change xcast mode */
495 fm10k_tlv_msg_init(msg, FM10K_VF_MSG_ID_LPORT_STATE);
496 fm10k_tlv_attr_put_u8(msg, FM10K_LPORT_STATE_MSG_XCAST_MODE, mode);
498 /* load onto outgoing mailbox */
499 return mbx->ops.enqueue_tx(hw, mbx, msg);
502 const struct fm10k_tlv_attr fm10k_1588_msg_attr[] = {
503 FM10K_TLV_ATTR_U64(FM10K_1588_MSG_CLK_OFFSET),
507 /* currently there is no shared 1588 message handler */
510 * fm10k_update_hw_stats_vf - Updates hardware related statistics of VF
511 * @hw: pointer to hardware structure
512 * @stats: pointer to statistics structure
514 * This function collects and aggregates per queue hardware statistics.
516 STATIC void fm10k_update_hw_stats_vf(struct fm10k_hw *hw,
517 struct fm10k_hw_stats *stats)
519 DEBUGFUNC("fm10k_update_hw_stats_vf");
521 fm10k_update_hw_stats_q(hw, stats->q, 0, hw->mac.max_queues);
525 * fm10k_rebind_hw_stats_vf - Resets base for hardware statistics of VF
526 * @hw: pointer to hardware structure
527 * @stats: pointer to the stats structure to update
529 * This function resets the base for queue hardware statistics.
531 STATIC void fm10k_rebind_hw_stats_vf(struct fm10k_hw *hw,
532 struct fm10k_hw_stats *stats)
534 DEBUGFUNC("fm10k_rebind_hw_stats_vf");
536 /* Unbind Queue Statistics */
537 fm10k_unbind_hw_stats_q(stats->q, 0, hw->mac.max_queues);
539 /* Reinitialize bases for all stats */
540 fm10k_update_hw_stats_vf(hw, stats);
544 * fm10k_configure_dglort_map_vf - Configures GLORT entry and queues
545 * @hw: pointer to hardware structure
546 * @dglort: pointer to dglort configuration structure
548 * Reads the configuration structure contained in dglort_cfg and uses
549 * that information to then populate a DGLORTMAP/DEC entry and the queues
550 * to which it has been assigned.
552 STATIC s32 fm10k_configure_dglort_map_vf(struct fm10k_hw *hw,
553 struct fm10k_dglort_cfg *dglort)
555 UNREFERENCED_1PARAMETER(hw);
556 DEBUGFUNC("fm10k_configure_dglort_map_vf");
558 /* verify the dglort pointer */
560 return FM10K_ERR_PARAM;
562 /* stub for now until we determine correct message for this */
564 return FM10K_SUCCESS;
568 * fm10k_adjust_systime_vf - Adjust systime frequency
569 * @hw: pointer to hardware structure
570 * @ppb: adjustment rate in parts per billion
572 * This function takes an adjustment rate in parts per billion and will
573 * verify that this value is 0 as the VF cannot support adjusting the
576 * If the ppb value is non-zero the return is ERR_PARAM else success
578 STATIC s32 fm10k_adjust_systime_vf(struct fm10k_hw *hw, s32 ppb)
580 UNREFERENCED_1PARAMETER(hw);
581 DEBUGFUNC("fm10k_adjust_systime_vf");
583 /* The VF cannot adjust the clock frequency, however it should
584 * already have a syntonic clock with whichever host interface is
585 * running as the master for the host interface clock domain so
586 * there should be not frequency adjustment necessary.
588 return ppb ? FM10K_ERR_PARAM : FM10K_SUCCESS;
592 * fm10k_read_systime_vf - Reads value of systime registers
593 * @hw: pointer to the hardware structure
595 * Function reads the content of 2 registers, combined to represent a 64 bit
596 * value measured in nanoseconds. In order to guarantee the value is accurate
597 * we check the 32 most significant bits both before and after reading the
598 * 32 least significant bits to verify they didn't change as we were reading
601 static u64 fm10k_read_systime_vf(struct fm10k_hw *hw)
603 u32 systime_l, systime_h, systime_tmp;
605 systime_h = fm10k_read_reg(hw, FM10K_VFSYSTIME + 1);
608 systime_tmp = systime_h;
609 systime_l = fm10k_read_reg(hw, FM10K_VFSYSTIME);
610 systime_h = fm10k_read_reg(hw, FM10K_VFSYSTIME + 1);
611 } while (systime_tmp != systime_h);
613 return ((u64)systime_h << 32) | systime_l;
616 static const struct fm10k_msg_data fm10k_msg_data_vf[] = {
617 FM10K_TLV_MSG_TEST_HANDLER(fm10k_tlv_msg_test),
618 FM10K_VF_MSG_MAC_VLAN_HANDLER(fm10k_msg_mac_vlan_vf),
619 FM10K_VF_MSG_LPORT_STATE_HANDLER(fm10k_msg_lport_state_vf),
620 FM10K_TLV_MSG_ERROR_HANDLER(fm10k_tlv_msg_error),
624 * fm10k_init_ops_vf - Inits func ptrs and MAC type
625 * @hw: pointer to hardware structure
627 * Initialize the function pointers and assign the MAC type for VF.
628 * Does not touch the hardware.
630 s32 fm10k_init_ops_vf(struct fm10k_hw *hw)
632 struct fm10k_mac_info *mac = &hw->mac;
634 DEBUGFUNC("fm10k_init_ops_vf");
636 fm10k_init_ops_generic(hw);
638 mac->ops.reset_hw = &fm10k_reset_hw_vf;
639 mac->ops.init_hw = &fm10k_init_hw_vf;
640 mac->ops.start_hw = &fm10k_start_hw_generic;
641 mac->ops.stop_hw = &fm10k_stop_hw_vf;
642 mac->ops.is_slot_appropriate = &fm10k_is_slot_appropriate_vf;
643 mac->ops.update_vlan = &fm10k_update_vlan_vf;
644 mac->ops.read_mac_addr = &fm10k_read_mac_addr_vf;
645 mac->ops.update_uc_addr = &fm10k_update_uc_addr_vf;
646 mac->ops.update_mc_addr = &fm10k_update_mc_addr_vf;
647 mac->ops.update_xcast_mode = &fm10k_update_xcast_mode_vf;
648 mac->ops.update_int_moderator = &fm10k_update_int_moderator_vf;
649 mac->ops.update_lport_state = &fm10k_update_lport_state_vf;
650 mac->ops.update_hw_stats = &fm10k_update_hw_stats_vf;
651 mac->ops.rebind_hw_stats = &fm10k_rebind_hw_stats_vf;
652 mac->ops.configure_dglort_map = &fm10k_configure_dglort_map_vf;
653 mac->ops.get_host_state = &fm10k_get_host_state_generic;
654 mac->ops.adjust_systime = &fm10k_adjust_systime_vf;
655 mac->ops.read_systime = &fm10k_read_systime_vf;
657 mac->max_msix_vectors = fm10k_get_pcie_msix_count_generic(hw);
659 return fm10k_pfvf_mbx_init(hw, &hw->mbx, fm10k_msg_data_vf, 0);