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9a799d71 AK |
1 | /******************************************************************************* |
2 | ||
3 | Intel 10 Gigabit PCI Express Linux driver | |
a52055e0 | 4 | Copyright(c) 1999 - 2011 Intel Corporation. |
9a799d71 AK |
5 | |
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. | |
9 | ||
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 | |
13 | more details. | |
14 | ||
15 | You should have received a copy of the GNU General Public License along with | |
16 | this program; if not, write to the Free Software Foundation, Inc., | |
17 | 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. | |
18 | ||
19 | The full GNU General Public License is included in this distribution in | |
20 | the file called "COPYING". | |
21 | ||
22 | Contact Information: | |
9a799d71 AK |
23 | e1000-devel Mailing List <e1000-devel@lists.sourceforge.net> |
24 | Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 | |
25 | ||
26 | *******************************************************************************/ | |
27 | ||
28 | #include <linux/pci.h> | |
29 | #include <linux/delay.h> | |
30 | #include <linux/sched.h> | |
ccffad25 | 31 | #include <linux/netdevice.h> |
9a799d71 | 32 | |
11afc1b1 | 33 | #include "ixgbe.h" |
9a799d71 AK |
34 | #include "ixgbe_common.h" |
35 | #include "ixgbe_phy.h" | |
36 | ||
c44ade9e | 37 | static s32 ixgbe_acquire_eeprom(struct ixgbe_hw *hw); |
9a799d71 AK |
38 | static s32 ixgbe_get_eeprom_semaphore(struct ixgbe_hw *hw); |
39 | static void ixgbe_release_eeprom_semaphore(struct ixgbe_hw *hw); | |
c44ade9e JB |
40 | static s32 ixgbe_ready_eeprom(struct ixgbe_hw *hw); |
41 | static void ixgbe_standby_eeprom(struct ixgbe_hw *hw); | |
42 | static void ixgbe_shift_out_eeprom_bits(struct ixgbe_hw *hw, u16 data, | |
43 | u16 count); | |
44 | static u16 ixgbe_shift_in_eeprom_bits(struct ixgbe_hw *hw, u16 count); | |
45 | static void ixgbe_raise_eeprom_clk(struct ixgbe_hw *hw, u32 *eec); | |
46 | static void ixgbe_lower_eeprom_clk(struct ixgbe_hw *hw, u32 *eec); | |
47 | static void ixgbe_release_eeprom(struct ixgbe_hw *hw); | |
9a799d71 | 48 | |
9a799d71 | 49 | static s32 ixgbe_mta_vector(struct ixgbe_hw *hw, u8 *mc_addr); |
0b0c2b31 ET |
50 | static s32 ixgbe_fc_autoneg_fiber(struct ixgbe_hw *hw); |
51 | static s32 ixgbe_fc_autoneg_backplane(struct ixgbe_hw *hw); | |
52 | static s32 ixgbe_fc_autoneg_copper(struct ixgbe_hw *hw); | |
53 | static s32 ixgbe_device_supports_autoneg_fc(struct ixgbe_hw *hw); | |
54 | static s32 ixgbe_negotiate_fc(struct ixgbe_hw *hw, u32 adv_reg, u32 lp_reg, | |
55 | u32 adv_sym, u32 adv_asm, u32 lp_sym, u32 lp_asm); | |
7b25cdba | 56 | static s32 ixgbe_setup_fc(struct ixgbe_hw *hw, s32 packetbuf_num); |
eb9c3e3e | 57 | static s32 ixgbe_poll_eerd_eewr_done(struct ixgbe_hw *hw, u32 ee_reg); |
68c7005d ET |
58 | static s32 ixgbe_read_eeprom_buffer_bit_bang(struct ixgbe_hw *hw, u16 offset, |
59 | u16 words, u16 *data); | |
60 | static s32 ixgbe_write_eeprom_buffer_bit_bang(struct ixgbe_hw *hw, u16 offset, | |
61 | u16 words, u16 *data); | |
62 | static s32 ixgbe_detect_eeprom_page_size_generic(struct ixgbe_hw *hw, | |
63 | u16 offset); | |
9a799d71 AK |
64 | |
65 | /** | |
c44ade9e | 66 | * ixgbe_start_hw_generic - Prepare hardware for Tx/Rx |
9a799d71 AK |
67 | * @hw: pointer to hardware structure |
68 | * | |
69 | * Starts the hardware by filling the bus info structure and media type, clears | |
70 | * all on chip counters, initializes receive address registers, multicast | |
71 | * table, VLAN filter table, calls routine to set up link and flow control | |
72 | * settings, and leaves transmit and receive units disabled and uninitialized | |
73 | **/ | |
c44ade9e | 74 | s32 ixgbe_start_hw_generic(struct ixgbe_hw *hw) |
9a799d71 AK |
75 | { |
76 | u32 ctrl_ext; | |
77 | ||
78 | /* Set the media type */ | |
79 | hw->phy.media_type = hw->mac.ops.get_media_type(hw); | |
80 | ||
81 | /* Identify the PHY */ | |
c44ade9e | 82 | hw->phy.ops.identify(hw); |
9a799d71 | 83 | |
9a799d71 | 84 | /* Clear the VLAN filter table */ |
c44ade9e | 85 | hw->mac.ops.clear_vfta(hw); |
9a799d71 | 86 | |
9a799d71 | 87 | /* Clear statistics registers */ |
c44ade9e | 88 | hw->mac.ops.clear_hw_cntrs(hw); |
9a799d71 AK |
89 | |
90 | /* Set No Snoop Disable */ | |
91 | ctrl_ext = IXGBE_READ_REG(hw, IXGBE_CTRL_EXT); | |
92 | ctrl_ext |= IXGBE_CTRL_EXT_NS_DIS; | |
93 | IXGBE_WRITE_REG(hw, IXGBE_CTRL_EXT, ctrl_ext); | |
3957d63d | 94 | IXGBE_WRITE_FLUSH(hw); |
9a799d71 | 95 | |
620fa036 MC |
96 | /* Setup flow control */ |
97 | ixgbe_setup_fc(hw, 0); | |
98 | ||
9a799d71 AK |
99 | /* Clear adapter stopped flag */ |
100 | hw->adapter_stopped = false; | |
101 | ||
102 | return 0; | |
103 | } | |
104 | ||
7184b7cf ET |
105 | /** |
106 | * ixgbe_start_hw_gen2 - Init sequence for common device family | |
107 | * @hw: pointer to hw structure | |
108 | * | |
109 | * Performs the init sequence common to the second generation | |
110 | * of 10 GbE devices. | |
111 | * Devices in the second generation: | |
112 | * 82599 | |
113 | * X540 | |
114 | **/ | |
115 | s32 ixgbe_start_hw_gen2(struct ixgbe_hw *hw) | |
116 | { | |
117 | u32 i; | |
3d5c5207 | 118 | u32 regval; |
7184b7cf ET |
119 | |
120 | /* Clear the rate limiters */ | |
121 | for (i = 0; i < hw->mac.max_tx_queues; i++) { | |
122 | IXGBE_WRITE_REG(hw, IXGBE_RTTDQSEL, i); | |
123 | IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRC, 0); | |
124 | } | |
125 | IXGBE_WRITE_FLUSH(hw); | |
126 | ||
3d5c5207 ET |
127 | /* Disable relaxed ordering */ |
128 | for (i = 0; i < hw->mac.max_tx_queues; i++) { | |
129 | regval = IXGBE_READ_REG(hw, IXGBE_DCA_TXCTRL_82599(i)); | |
130 | regval &= ~IXGBE_DCA_TXCTRL_TX_WB_RO_EN; | |
131 | IXGBE_WRITE_REG(hw, IXGBE_DCA_TXCTRL_82599(i), regval); | |
132 | } | |
133 | ||
134 | for (i = 0; i < hw->mac.max_rx_queues; i++) { | |
135 | regval = IXGBE_READ_REG(hw, IXGBE_DCA_RXCTRL(i)); | |
136 | regval &= ~(IXGBE_DCA_RXCTRL_DESC_WRO_EN | | |
137 | IXGBE_DCA_RXCTRL_DESC_HSRO_EN); | |
138 | IXGBE_WRITE_REG(hw, IXGBE_DCA_RXCTRL(i), regval); | |
139 | } | |
140 | ||
7184b7cf ET |
141 | return 0; |
142 | } | |
143 | ||
9a799d71 | 144 | /** |
c44ade9e | 145 | * ixgbe_init_hw_generic - Generic hardware initialization |
9a799d71 AK |
146 | * @hw: pointer to hardware structure |
147 | * | |
c44ade9e | 148 | * Initialize the hardware by resetting the hardware, filling the bus info |
9a799d71 AK |
149 | * structure and media type, clears all on chip counters, initializes receive |
150 | * address registers, multicast table, VLAN filter table, calls routine to set | |
151 | * up link and flow control settings, and leaves transmit and receive units | |
152 | * disabled and uninitialized | |
153 | **/ | |
c44ade9e | 154 | s32 ixgbe_init_hw_generic(struct ixgbe_hw *hw) |
9a799d71 | 155 | { |
794caeb2 PWJ |
156 | s32 status; |
157 | ||
9a799d71 | 158 | /* Reset the hardware */ |
794caeb2 | 159 | status = hw->mac.ops.reset_hw(hw); |
9a799d71 | 160 | |
794caeb2 PWJ |
161 | if (status == 0) { |
162 | /* Start the HW */ | |
163 | status = hw->mac.ops.start_hw(hw); | |
164 | } | |
9a799d71 | 165 | |
794caeb2 | 166 | return status; |
9a799d71 AK |
167 | } |
168 | ||
169 | /** | |
c44ade9e | 170 | * ixgbe_clear_hw_cntrs_generic - Generic clear hardware counters |
9a799d71 AK |
171 | * @hw: pointer to hardware structure |
172 | * | |
173 | * Clears all hardware statistics counters by reading them from the hardware | |
174 | * Statistics counters are clear on read. | |
175 | **/ | |
c44ade9e | 176 | s32 ixgbe_clear_hw_cntrs_generic(struct ixgbe_hw *hw) |
9a799d71 AK |
177 | { |
178 | u16 i = 0; | |
179 | ||
180 | IXGBE_READ_REG(hw, IXGBE_CRCERRS); | |
181 | IXGBE_READ_REG(hw, IXGBE_ILLERRC); | |
182 | IXGBE_READ_REG(hw, IXGBE_ERRBC); | |
183 | IXGBE_READ_REG(hw, IXGBE_MSPDC); | |
184 | for (i = 0; i < 8; i++) | |
185 | IXGBE_READ_REG(hw, IXGBE_MPC(i)); | |
186 | ||
187 | IXGBE_READ_REG(hw, IXGBE_MLFC); | |
188 | IXGBE_READ_REG(hw, IXGBE_MRFC); | |
189 | IXGBE_READ_REG(hw, IXGBE_RLEC); | |
190 | IXGBE_READ_REG(hw, IXGBE_LXONTXC); | |
9a799d71 | 191 | IXGBE_READ_REG(hw, IXGBE_LXOFFTXC); |
667c7565 ET |
192 | if (hw->mac.type >= ixgbe_mac_82599EB) { |
193 | IXGBE_READ_REG(hw, IXGBE_LXONRXCNT); | |
194 | IXGBE_READ_REG(hw, IXGBE_LXOFFRXCNT); | |
195 | } else { | |
196 | IXGBE_READ_REG(hw, IXGBE_LXONRXC); | |
197 | IXGBE_READ_REG(hw, IXGBE_LXOFFRXC); | |
198 | } | |
9a799d71 AK |
199 | |
200 | for (i = 0; i < 8; i++) { | |
201 | IXGBE_READ_REG(hw, IXGBE_PXONTXC(i)); | |
9a799d71 | 202 | IXGBE_READ_REG(hw, IXGBE_PXOFFTXC(i)); |
667c7565 ET |
203 | if (hw->mac.type >= ixgbe_mac_82599EB) { |
204 | IXGBE_READ_REG(hw, IXGBE_PXONRXCNT(i)); | |
205 | IXGBE_READ_REG(hw, IXGBE_PXOFFRXCNT(i)); | |
206 | } else { | |
207 | IXGBE_READ_REG(hw, IXGBE_PXONRXC(i)); | |
208 | IXGBE_READ_REG(hw, IXGBE_PXOFFRXC(i)); | |
209 | } | |
9a799d71 | 210 | } |
667c7565 ET |
211 | if (hw->mac.type >= ixgbe_mac_82599EB) |
212 | for (i = 0; i < 8; i++) | |
213 | IXGBE_READ_REG(hw, IXGBE_PXON2OFFCNT(i)); | |
9a799d71 AK |
214 | IXGBE_READ_REG(hw, IXGBE_PRC64); |
215 | IXGBE_READ_REG(hw, IXGBE_PRC127); | |
216 | IXGBE_READ_REG(hw, IXGBE_PRC255); | |
217 | IXGBE_READ_REG(hw, IXGBE_PRC511); | |
218 | IXGBE_READ_REG(hw, IXGBE_PRC1023); | |
219 | IXGBE_READ_REG(hw, IXGBE_PRC1522); | |
220 | IXGBE_READ_REG(hw, IXGBE_GPRC); | |
221 | IXGBE_READ_REG(hw, IXGBE_BPRC); | |
222 | IXGBE_READ_REG(hw, IXGBE_MPRC); | |
223 | IXGBE_READ_REG(hw, IXGBE_GPTC); | |
224 | IXGBE_READ_REG(hw, IXGBE_GORCL); | |
225 | IXGBE_READ_REG(hw, IXGBE_GORCH); | |
226 | IXGBE_READ_REG(hw, IXGBE_GOTCL); | |
227 | IXGBE_READ_REG(hw, IXGBE_GOTCH); | |
228 | for (i = 0; i < 8; i++) | |
229 | IXGBE_READ_REG(hw, IXGBE_RNBC(i)); | |
230 | IXGBE_READ_REG(hw, IXGBE_RUC); | |
231 | IXGBE_READ_REG(hw, IXGBE_RFC); | |
232 | IXGBE_READ_REG(hw, IXGBE_ROC); | |
233 | IXGBE_READ_REG(hw, IXGBE_RJC); | |
234 | IXGBE_READ_REG(hw, IXGBE_MNGPRC); | |
235 | IXGBE_READ_REG(hw, IXGBE_MNGPDC); | |
236 | IXGBE_READ_REG(hw, IXGBE_MNGPTC); | |
237 | IXGBE_READ_REG(hw, IXGBE_TORL); | |
238 | IXGBE_READ_REG(hw, IXGBE_TORH); | |
239 | IXGBE_READ_REG(hw, IXGBE_TPR); | |
240 | IXGBE_READ_REG(hw, IXGBE_TPT); | |
241 | IXGBE_READ_REG(hw, IXGBE_PTC64); | |
242 | IXGBE_READ_REG(hw, IXGBE_PTC127); | |
243 | IXGBE_READ_REG(hw, IXGBE_PTC255); | |
244 | IXGBE_READ_REG(hw, IXGBE_PTC511); | |
245 | IXGBE_READ_REG(hw, IXGBE_PTC1023); | |
246 | IXGBE_READ_REG(hw, IXGBE_PTC1522); | |
247 | IXGBE_READ_REG(hw, IXGBE_MPTC); | |
248 | IXGBE_READ_REG(hw, IXGBE_BPTC); | |
249 | for (i = 0; i < 16; i++) { | |
250 | IXGBE_READ_REG(hw, IXGBE_QPRC(i)); | |
9a799d71 | 251 | IXGBE_READ_REG(hw, IXGBE_QPTC(i)); |
667c7565 ET |
252 | if (hw->mac.type >= ixgbe_mac_82599EB) { |
253 | IXGBE_READ_REG(hw, IXGBE_QBRC_L(i)); | |
254 | IXGBE_READ_REG(hw, IXGBE_QBRC_H(i)); | |
255 | IXGBE_READ_REG(hw, IXGBE_QBTC_L(i)); | |
256 | IXGBE_READ_REG(hw, IXGBE_QBTC_H(i)); | |
257 | IXGBE_READ_REG(hw, IXGBE_QPRDC(i)); | |
258 | } else { | |
259 | IXGBE_READ_REG(hw, IXGBE_QBRC(i)); | |
260 | IXGBE_READ_REG(hw, IXGBE_QBTC(i)); | |
261 | } | |
9a799d71 AK |
262 | } |
263 | ||
a3aeea0e ET |
264 | if (hw->mac.type == ixgbe_mac_X540) { |
265 | if (hw->phy.id == 0) | |
266 | hw->phy.ops.identify(hw); | |
267 | hw->phy.ops.read_reg(hw, 0x3, IXGBE_PCRC8ECL, &i); | |
268 | hw->phy.ops.read_reg(hw, 0x3, IXGBE_PCRC8ECH, &i); | |
269 | hw->phy.ops.read_reg(hw, 0x3, IXGBE_LDPCECL, &i); | |
270 | hw->phy.ops.read_reg(hw, 0x3, IXGBE_LDPCECH, &i); | |
271 | } | |
272 | ||
9a799d71 AK |
273 | return 0; |
274 | } | |
275 | ||
276 | /** | |
289700db | 277 | * ixgbe_read_pba_string_generic - Reads part number string from EEPROM |
c44ade9e | 278 | * @hw: pointer to hardware structure |
289700db DS |
279 | * @pba_num: stores the part number string from the EEPROM |
280 | * @pba_num_size: part number string buffer length | |
c44ade9e | 281 | * |
289700db | 282 | * Reads the part number string from the EEPROM. |
c44ade9e | 283 | **/ |
289700db DS |
284 | s32 ixgbe_read_pba_string_generic(struct ixgbe_hw *hw, u8 *pba_num, |
285 | u32 pba_num_size) | |
c44ade9e JB |
286 | { |
287 | s32 ret_val; | |
288 | u16 data; | |
289700db DS |
289 | u16 pba_ptr; |
290 | u16 offset; | |
291 | u16 length; | |
292 | ||
293 | if (pba_num == NULL) { | |
294 | hw_dbg(hw, "PBA string buffer was null\n"); | |
295 | return IXGBE_ERR_INVALID_ARGUMENT; | |
296 | } | |
c44ade9e JB |
297 | |
298 | ret_val = hw->eeprom.ops.read(hw, IXGBE_PBANUM0_PTR, &data); | |
299 | if (ret_val) { | |
300 | hw_dbg(hw, "NVM Read Error\n"); | |
301 | return ret_val; | |
302 | } | |
c44ade9e | 303 | |
289700db | 304 | ret_val = hw->eeprom.ops.read(hw, IXGBE_PBANUM1_PTR, &pba_ptr); |
c44ade9e JB |
305 | if (ret_val) { |
306 | hw_dbg(hw, "NVM Read Error\n"); | |
307 | return ret_val; | |
308 | } | |
289700db DS |
309 | |
310 | /* | |
311 | * if data is not ptr guard the PBA must be in legacy format which | |
312 | * means pba_ptr is actually our second data word for the PBA number | |
313 | * and we can decode it into an ascii string | |
314 | */ | |
315 | if (data != IXGBE_PBANUM_PTR_GUARD) { | |
316 | hw_dbg(hw, "NVM PBA number is not stored as string\n"); | |
317 | ||
318 | /* we will need 11 characters to store the PBA */ | |
319 | if (pba_num_size < 11) { | |
320 | hw_dbg(hw, "PBA string buffer too small\n"); | |
321 | return IXGBE_ERR_NO_SPACE; | |
322 | } | |
323 | ||
324 | /* extract hex string from data and pba_ptr */ | |
325 | pba_num[0] = (data >> 12) & 0xF; | |
326 | pba_num[1] = (data >> 8) & 0xF; | |
327 | pba_num[2] = (data >> 4) & 0xF; | |
328 | pba_num[3] = data & 0xF; | |
329 | pba_num[4] = (pba_ptr >> 12) & 0xF; | |
330 | pba_num[5] = (pba_ptr >> 8) & 0xF; | |
331 | pba_num[6] = '-'; | |
332 | pba_num[7] = 0; | |
333 | pba_num[8] = (pba_ptr >> 4) & 0xF; | |
334 | pba_num[9] = pba_ptr & 0xF; | |
335 | ||
336 | /* put a null character on the end of our string */ | |
337 | pba_num[10] = '\0'; | |
338 | ||
339 | /* switch all the data but the '-' to hex char */ | |
340 | for (offset = 0; offset < 10; offset++) { | |
341 | if (pba_num[offset] < 0xA) | |
342 | pba_num[offset] += '0'; | |
343 | else if (pba_num[offset] < 0x10) | |
344 | pba_num[offset] += 'A' - 0xA; | |
345 | } | |
346 | ||
347 | return 0; | |
348 | } | |
349 | ||
350 | ret_val = hw->eeprom.ops.read(hw, pba_ptr, &length); | |
351 | if (ret_val) { | |
352 | hw_dbg(hw, "NVM Read Error\n"); | |
353 | return ret_val; | |
354 | } | |
355 | ||
356 | if (length == 0xFFFF || length == 0) { | |
357 | hw_dbg(hw, "NVM PBA number section invalid length\n"); | |
358 | return IXGBE_ERR_PBA_SECTION; | |
359 | } | |
360 | ||
361 | /* check if pba_num buffer is big enough */ | |
362 | if (pba_num_size < (((u32)length * 2) - 1)) { | |
363 | hw_dbg(hw, "PBA string buffer too small\n"); | |
364 | return IXGBE_ERR_NO_SPACE; | |
365 | } | |
366 | ||
367 | /* trim pba length from start of string */ | |
368 | pba_ptr++; | |
369 | length--; | |
370 | ||
371 | for (offset = 0; offset < length; offset++) { | |
372 | ret_val = hw->eeprom.ops.read(hw, pba_ptr + offset, &data); | |
373 | if (ret_val) { | |
374 | hw_dbg(hw, "NVM Read Error\n"); | |
375 | return ret_val; | |
376 | } | |
377 | pba_num[offset * 2] = (u8)(data >> 8); | |
378 | pba_num[(offset * 2) + 1] = (u8)(data & 0xFF); | |
379 | } | |
380 | pba_num[offset * 2] = '\0'; | |
c44ade9e JB |
381 | |
382 | return 0; | |
383 | } | |
384 | ||
385 | /** | |
386 | * ixgbe_get_mac_addr_generic - Generic get MAC address | |
9a799d71 AK |
387 | * @hw: pointer to hardware structure |
388 | * @mac_addr: Adapter MAC address | |
389 | * | |
390 | * Reads the adapter's MAC address from first Receive Address Register (RAR0) | |
391 | * A reset of the adapter must be performed prior to calling this function | |
392 | * in order for the MAC address to have been loaded from the EEPROM into RAR0 | |
393 | **/ | |
c44ade9e | 394 | s32 ixgbe_get_mac_addr_generic(struct ixgbe_hw *hw, u8 *mac_addr) |
9a799d71 AK |
395 | { |
396 | u32 rar_high; | |
397 | u32 rar_low; | |
398 | u16 i; | |
399 | ||
400 | rar_high = IXGBE_READ_REG(hw, IXGBE_RAH(0)); | |
401 | rar_low = IXGBE_READ_REG(hw, IXGBE_RAL(0)); | |
402 | ||
403 | for (i = 0; i < 4; i++) | |
404 | mac_addr[i] = (u8)(rar_low >> (i*8)); | |
405 | ||
406 | for (i = 0; i < 2; i++) | |
407 | mac_addr[i+4] = (u8)(rar_high >> (i*8)); | |
408 | ||
409 | return 0; | |
410 | } | |
411 | ||
11afc1b1 PW |
412 | /** |
413 | * ixgbe_get_bus_info_generic - Generic set PCI bus info | |
414 | * @hw: pointer to hardware structure | |
415 | * | |
416 | * Sets the PCI bus info (speed, width, type) within the ixgbe_hw structure | |
417 | **/ | |
418 | s32 ixgbe_get_bus_info_generic(struct ixgbe_hw *hw) | |
419 | { | |
420 | struct ixgbe_adapter *adapter = hw->back; | |
421 | struct ixgbe_mac_info *mac = &hw->mac; | |
422 | u16 link_status; | |
423 | ||
424 | hw->bus.type = ixgbe_bus_type_pci_express; | |
425 | ||
426 | /* Get the negotiated link width and speed from PCI config space */ | |
427 | pci_read_config_word(adapter->pdev, IXGBE_PCI_LINK_STATUS, | |
428 | &link_status); | |
429 | ||
430 | switch (link_status & IXGBE_PCI_LINK_WIDTH) { | |
431 | case IXGBE_PCI_LINK_WIDTH_1: | |
432 | hw->bus.width = ixgbe_bus_width_pcie_x1; | |
433 | break; | |
434 | case IXGBE_PCI_LINK_WIDTH_2: | |
435 | hw->bus.width = ixgbe_bus_width_pcie_x2; | |
436 | break; | |
437 | case IXGBE_PCI_LINK_WIDTH_4: | |
438 | hw->bus.width = ixgbe_bus_width_pcie_x4; | |
439 | break; | |
440 | case IXGBE_PCI_LINK_WIDTH_8: | |
441 | hw->bus.width = ixgbe_bus_width_pcie_x8; | |
442 | break; | |
443 | default: | |
444 | hw->bus.width = ixgbe_bus_width_unknown; | |
445 | break; | |
446 | } | |
447 | ||
448 | switch (link_status & IXGBE_PCI_LINK_SPEED) { | |
449 | case IXGBE_PCI_LINK_SPEED_2500: | |
450 | hw->bus.speed = ixgbe_bus_speed_2500; | |
451 | break; | |
452 | case IXGBE_PCI_LINK_SPEED_5000: | |
453 | hw->bus.speed = ixgbe_bus_speed_5000; | |
454 | break; | |
455 | default: | |
456 | hw->bus.speed = ixgbe_bus_speed_unknown; | |
457 | break; | |
458 | } | |
459 | ||
460 | mac->ops.set_lan_id(hw); | |
461 | ||
462 | return 0; | |
463 | } | |
464 | ||
465 | /** | |
466 | * ixgbe_set_lan_id_multi_port_pcie - Set LAN id for PCIe multiple port devices | |
467 | * @hw: pointer to the HW structure | |
468 | * | |
469 | * Determines the LAN function id by reading memory-mapped registers | |
470 | * and swaps the port value if requested. | |
471 | **/ | |
472 | void ixgbe_set_lan_id_multi_port_pcie(struct ixgbe_hw *hw) | |
473 | { | |
474 | struct ixgbe_bus_info *bus = &hw->bus; | |
475 | u32 reg; | |
476 | ||
477 | reg = IXGBE_READ_REG(hw, IXGBE_STATUS); | |
478 | bus->func = (reg & IXGBE_STATUS_LAN_ID) >> IXGBE_STATUS_LAN_ID_SHIFT; | |
479 | bus->lan_id = bus->func; | |
480 | ||
481 | /* check for a port swap */ | |
482 | reg = IXGBE_READ_REG(hw, IXGBE_FACTPS); | |
483 | if (reg & IXGBE_FACTPS_LFS) | |
484 | bus->func ^= 0x1; | |
485 | } | |
486 | ||
9a799d71 | 487 | /** |
c44ade9e | 488 | * ixgbe_stop_adapter_generic - Generic stop Tx/Rx units |
9a799d71 AK |
489 | * @hw: pointer to hardware structure |
490 | * | |
491 | * Sets the adapter_stopped flag within ixgbe_hw struct. Clears interrupts, | |
492 | * disables transmit and receive units. The adapter_stopped flag is used by | |
493 | * the shared code and drivers to determine if the adapter is in a stopped | |
494 | * state and should not touch the hardware. | |
495 | **/ | |
c44ade9e | 496 | s32 ixgbe_stop_adapter_generic(struct ixgbe_hw *hw) |
9a799d71 AK |
497 | { |
498 | u32 number_of_queues; | |
499 | u32 reg_val; | |
500 | u16 i; | |
501 | ||
502 | /* | |
503 | * Set the adapter_stopped flag so other driver functions stop touching | |
504 | * the hardware | |
505 | */ | |
506 | hw->adapter_stopped = true; | |
507 | ||
508 | /* Disable the receive unit */ | |
509 | reg_val = IXGBE_READ_REG(hw, IXGBE_RXCTRL); | |
510 | reg_val &= ~(IXGBE_RXCTRL_RXEN); | |
511 | IXGBE_WRITE_REG(hw, IXGBE_RXCTRL, reg_val); | |
c44ade9e | 512 | IXGBE_WRITE_FLUSH(hw); |
032b4325 | 513 | usleep_range(2000, 4000); |
9a799d71 AK |
514 | |
515 | /* Clear interrupt mask to stop from interrupts being generated */ | |
516 | IXGBE_WRITE_REG(hw, IXGBE_EIMC, IXGBE_IRQ_CLEAR_MASK); | |
517 | ||
518 | /* Clear any pending interrupts */ | |
519 | IXGBE_READ_REG(hw, IXGBE_EICR); | |
520 | ||
521 | /* Disable the transmit unit. Each queue must be disabled. */ | |
c44ade9e | 522 | number_of_queues = hw->mac.max_tx_queues; |
9a799d71 AK |
523 | for (i = 0; i < number_of_queues; i++) { |
524 | reg_val = IXGBE_READ_REG(hw, IXGBE_TXDCTL(i)); | |
525 | if (reg_val & IXGBE_TXDCTL_ENABLE) { | |
526 | reg_val &= ~IXGBE_TXDCTL_ENABLE; | |
527 | IXGBE_WRITE_REG(hw, IXGBE_TXDCTL(i), reg_val); | |
528 | } | |
529 | } | |
530 | ||
c44ade9e JB |
531 | /* |
532 | * Prevent the PCI-E bus from from hanging by disabling PCI-E master | |
533 | * access and verify no pending requests | |
534 | */ | |
a4297dc2 | 535 | ixgbe_disable_pcie_master(hw); |
c44ade9e | 536 | |
9a799d71 AK |
537 | return 0; |
538 | } | |
539 | ||
540 | /** | |
c44ade9e | 541 | * ixgbe_led_on_generic - Turns on the software controllable LEDs. |
9a799d71 AK |
542 | * @hw: pointer to hardware structure |
543 | * @index: led number to turn on | |
544 | **/ | |
c44ade9e | 545 | s32 ixgbe_led_on_generic(struct ixgbe_hw *hw, u32 index) |
9a799d71 AK |
546 | { |
547 | u32 led_reg = IXGBE_READ_REG(hw, IXGBE_LEDCTL); | |
548 | ||
549 | /* To turn on the LED, set mode to ON. */ | |
550 | led_reg &= ~IXGBE_LED_MODE_MASK(index); | |
551 | led_reg |= IXGBE_LED_ON << IXGBE_LED_MODE_SHIFT(index); | |
552 | IXGBE_WRITE_REG(hw, IXGBE_LEDCTL, led_reg); | |
3957d63d | 553 | IXGBE_WRITE_FLUSH(hw); |
9a799d71 AK |
554 | |
555 | return 0; | |
556 | } | |
557 | ||
558 | /** | |
c44ade9e | 559 | * ixgbe_led_off_generic - Turns off the software controllable LEDs. |
9a799d71 AK |
560 | * @hw: pointer to hardware structure |
561 | * @index: led number to turn off | |
562 | **/ | |
c44ade9e | 563 | s32 ixgbe_led_off_generic(struct ixgbe_hw *hw, u32 index) |
9a799d71 AK |
564 | { |
565 | u32 led_reg = IXGBE_READ_REG(hw, IXGBE_LEDCTL); | |
566 | ||
567 | /* To turn off the LED, set mode to OFF. */ | |
568 | led_reg &= ~IXGBE_LED_MODE_MASK(index); | |
569 | led_reg |= IXGBE_LED_OFF << IXGBE_LED_MODE_SHIFT(index); | |
570 | IXGBE_WRITE_REG(hw, IXGBE_LEDCTL, led_reg); | |
3957d63d | 571 | IXGBE_WRITE_FLUSH(hw); |
9a799d71 AK |
572 | |
573 | return 0; | |
574 | } | |
575 | ||
9a799d71 | 576 | /** |
c44ade9e | 577 | * ixgbe_init_eeprom_params_generic - Initialize EEPROM params |
9a799d71 AK |
578 | * @hw: pointer to hardware structure |
579 | * | |
580 | * Initializes the EEPROM parameters ixgbe_eeprom_info within the | |
581 | * ixgbe_hw struct in order to set up EEPROM access. | |
582 | **/ | |
c44ade9e | 583 | s32 ixgbe_init_eeprom_params_generic(struct ixgbe_hw *hw) |
9a799d71 AK |
584 | { |
585 | struct ixgbe_eeprom_info *eeprom = &hw->eeprom; | |
586 | u32 eec; | |
587 | u16 eeprom_size; | |
588 | ||
589 | if (eeprom->type == ixgbe_eeprom_uninitialized) { | |
590 | eeprom->type = ixgbe_eeprom_none; | |
c44ade9e JB |
591 | /* Set default semaphore delay to 10ms which is a well |
592 | * tested value */ | |
593 | eeprom->semaphore_delay = 10; | |
68c7005d ET |
594 | /* Clear EEPROM page size, it will be initialized as needed */ |
595 | eeprom->word_page_size = 0; | |
9a799d71 AK |
596 | |
597 | /* | |
598 | * Check for EEPROM present first. | |
599 | * If not present leave as none | |
600 | */ | |
601 | eec = IXGBE_READ_REG(hw, IXGBE_EEC); | |
602 | if (eec & IXGBE_EEC_PRES) { | |
603 | eeprom->type = ixgbe_eeprom_spi; | |
604 | ||
605 | /* | |
606 | * SPI EEPROM is assumed here. This code would need to | |
607 | * change if a future EEPROM is not SPI. | |
608 | */ | |
609 | eeprom_size = (u16)((eec & IXGBE_EEC_SIZE) >> | |
610 | IXGBE_EEC_SIZE_SHIFT); | |
611 | eeprom->word_size = 1 << (eeprom_size + | |
612 | IXGBE_EEPROM_WORD_SIZE_SHIFT); | |
613 | } | |
614 | ||
615 | if (eec & IXGBE_EEC_ADDR_SIZE) | |
616 | eeprom->address_bits = 16; | |
617 | else | |
618 | eeprom->address_bits = 8; | |
619 | hw_dbg(hw, "Eeprom params: type = %d, size = %d, address bits: " | |
620 | "%d\n", eeprom->type, eeprom->word_size, | |
621 | eeprom->address_bits); | |
622 | } | |
623 | ||
624 | return 0; | |
625 | } | |
626 | ||
11afc1b1 | 627 | /** |
68c7005d | 628 | * ixgbe_write_eeprom_buffer_bit_bang_generic - Write EEPROM using bit-bang |
11afc1b1 | 629 | * @hw: pointer to hardware structure |
68c7005d ET |
630 | * @offset: offset within the EEPROM to write |
631 | * @words: number of words | |
632 | * @data: 16 bit word(s) to write to EEPROM | |
11afc1b1 | 633 | * |
68c7005d | 634 | * Reads 16 bit word(s) from EEPROM through bit-bang method |
11afc1b1 | 635 | **/ |
68c7005d ET |
636 | s32 ixgbe_write_eeprom_buffer_bit_bang_generic(struct ixgbe_hw *hw, u16 offset, |
637 | u16 words, u16 *data) | |
11afc1b1 | 638 | { |
68c7005d ET |
639 | s32 status = 0; |
640 | u16 i, count; | |
11afc1b1 PW |
641 | |
642 | hw->eeprom.ops.init_params(hw); | |
643 | ||
68c7005d ET |
644 | if (words == 0) { |
645 | status = IXGBE_ERR_INVALID_ARGUMENT; | |
646 | goto out; | |
647 | } | |
648 | ||
649 | if (offset + words > hw->eeprom.word_size) { | |
11afc1b1 PW |
650 | status = IXGBE_ERR_EEPROM; |
651 | goto out; | |
652 | } | |
653 | ||
68c7005d ET |
654 | /* |
655 | * The EEPROM page size cannot be queried from the chip. We do lazy | |
656 | * initialization. It is worth to do that when we write large buffer. | |
657 | */ | |
658 | if ((hw->eeprom.word_page_size == 0) && | |
659 | (words > IXGBE_EEPROM_PAGE_SIZE_MAX)) | |
660 | ixgbe_detect_eeprom_page_size_generic(hw, offset); | |
661 | ||
662 | /* | |
663 | * We cannot hold synchronization semaphores for too long | |
664 | * to avoid other entity starvation. However it is more efficient | |
665 | * to read in bursts than synchronizing access for each word. | |
666 | */ | |
667 | for (i = 0; i < words; i += IXGBE_EEPROM_RD_BUFFER_MAX_COUNT) { | |
668 | count = (words - i) / IXGBE_EEPROM_RD_BUFFER_MAX_COUNT > 0 ? | |
669 | IXGBE_EEPROM_RD_BUFFER_MAX_COUNT : (words - i); | |
670 | status = ixgbe_write_eeprom_buffer_bit_bang(hw, offset + i, | |
671 | count, &data[i]); | |
672 | ||
673 | if (status != 0) | |
674 | break; | |
675 | } | |
676 | ||
677 | out: | |
678 | return status; | |
679 | } | |
680 | ||
681 | /** | |
682 | * ixgbe_write_eeprom_buffer_bit_bang - Writes 16 bit word(s) to EEPROM | |
683 | * @hw: pointer to hardware structure | |
684 | * @offset: offset within the EEPROM to be written to | |
685 | * @words: number of word(s) | |
686 | * @data: 16 bit word(s) to be written to the EEPROM | |
687 | * | |
688 | * If ixgbe_eeprom_update_checksum is not called after this function, the | |
689 | * EEPROM will most likely contain an invalid checksum. | |
690 | **/ | |
691 | static s32 ixgbe_write_eeprom_buffer_bit_bang(struct ixgbe_hw *hw, u16 offset, | |
692 | u16 words, u16 *data) | |
693 | { | |
694 | s32 status; | |
695 | u16 word; | |
696 | u16 page_size; | |
697 | u16 i; | |
698 | u8 write_opcode = IXGBE_EEPROM_WRITE_OPCODE_SPI; | |
699 | ||
11afc1b1 PW |
700 | /* Prepare the EEPROM for writing */ |
701 | status = ixgbe_acquire_eeprom(hw); | |
702 | ||
703 | if (status == 0) { | |
704 | if (ixgbe_ready_eeprom(hw) != 0) { | |
705 | ixgbe_release_eeprom(hw); | |
706 | status = IXGBE_ERR_EEPROM; | |
707 | } | |
708 | } | |
709 | ||
710 | if (status == 0) { | |
68c7005d ET |
711 | for (i = 0; i < words; i++) { |
712 | ixgbe_standby_eeprom(hw); | |
11afc1b1 | 713 | |
68c7005d ET |
714 | /* Send the WRITE ENABLE command (8 bit opcode ) */ |
715 | ixgbe_shift_out_eeprom_bits(hw, | |
716 | IXGBE_EEPROM_WREN_OPCODE_SPI, | |
717 | IXGBE_EEPROM_OPCODE_BITS); | |
11afc1b1 | 718 | |
68c7005d | 719 | ixgbe_standby_eeprom(hw); |
11afc1b1 | 720 | |
68c7005d ET |
721 | /* |
722 | * Some SPI eeproms use the 8th address bit embedded | |
723 | * in the opcode | |
724 | */ | |
725 | if ((hw->eeprom.address_bits == 8) && | |
726 | ((offset + i) >= 128)) | |
727 | write_opcode |= IXGBE_EEPROM_A8_OPCODE_SPI; | |
728 | ||
729 | /* Send the Write command (8-bit opcode + addr) */ | |
730 | ixgbe_shift_out_eeprom_bits(hw, write_opcode, | |
731 | IXGBE_EEPROM_OPCODE_BITS); | |
732 | ixgbe_shift_out_eeprom_bits(hw, (u16)((offset + i) * 2), | |
733 | hw->eeprom.address_bits); | |
734 | ||
735 | page_size = hw->eeprom.word_page_size; | |
736 | ||
737 | /* Send the data in burst via SPI*/ | |
738 | do { | |
739 | word = data[i]; | |
740 | word = (word >> 8) | (word << 8); | |
741 | ixgbe_shift_out_eeprom_bits(hw, word, 16); | |
742 | ||
743 | if (page_size == 0) | |
744 | break; | |
745 | ||
746 | /* do not wrap around page */ | |
747 | if (((offset + i) & (page_size - 1)) == | |
748 | (page_size - 1)) | |
749 | break; | |
750 | } while (++i < words); | |
751 | ||
752 | ixgbe_standby_eeprom(hw); | |
753 | usleep_range(10000, 20000); | |
754 | } | |
755 | /* Done with writing - release the EEPROM */ | |
756 | ixgbe_release_eeprom(hw); | |
757 | } | |
11afc1b1 | 758 | |
68c7005d ET |
759 | return status; |
760 | } | |
761 | ||
762 | /** | |
763 | * ixgbe_write_eeprom_generic - Writes 16 bit value to EEPROM | |
764 | * @hw: pointer to hardware structure | |
765 | * @offset: offset within the EEPROM to be written to | |
766 | * @data: 16 bit word to be written to the EEPROM | |
767 | * | |
768 | * If ixgbe_eeprom_update_checksum is not called after this function, the | |
769 | * EEPROM will most likely contain an invalid checksum. | |
770 | **/ | |
771 | s32 ixgbe_write_eeprom_generic(struct ixgbe_hw *hw, u16 offset, u16 data) | |
772 | { | |
773 | s32 status; | |
11afc1b1 | 774 | |
68c7005d | 775 | hw->eeprom.ops.init_params(hw); |
11afc1b1 | 776 | |
68c7005d ET |
777 | if (offset >= hw->eeprom.word_size) { |
778 | status = IXGBE_ERR_EEPROM; | |
779 | goto out; | |
11afc1b1 PW |
780 | } |
781 | ||
68c7005d ET |
782 | status = ixgbe_write_eeprom_buffer_bit_bang(hw, offset, 1, &data); |
783 | ||
11afc1b1 PW |
784 | out: |
785 | return status; | |
786 | } | |
787 | ||
9a799d71 | 788 | /** |
68c7005d | 789 | * ixgbe_read_eeprom_buffer_bit_bang_generic - Read EEPROM using bit-bang |
c44ade9e JB |
790 | * @hw: pointer to hardware structure |
791 | * @offset: offset within the EEPROM to be read | |
68c7005d ET |
792 | * @words: number of word(s) |
793 | * @data: read 16 bit words(s) from EEPROM | |
c44ade9e | 794 | * |
68c7005d | 795 | * Reads 16 bit word(s) from EEPROM through bit-bang method |
c44ade9e | 796 | **/ |
68c7005d ET |
797 | s32 ixgbe_read_eeprom_buffer_bit_bang_generic(struct ixgbe_hw *hw, u16 offset, |
798 | u16 words, u16 *data) | |
c44ade9e | 799 | { |
68c7005d ET |
800 | s32 status = 0; |
801 | u16 i, count; | |
c44ade9e JB |
802 | |
803 | hw->eeprom.ops.init_params(hw); | |
804 | ||
68c7005d ET |
805 | if (words == 0) { |
806 | status = IXGBE_ERR_INVALID_ARGUMENT; | |
807 | goto out; | |
808 | } | |
809 | ||
810 | if (offset + words > hw->eeprom.word_size) { | |
c44ade9e JB |
811 | status = IXGBE_ERR_EEPROM; |
812 | goto out; | |
813 | } | |
814 | ||
68c7005d ET |
815 | /* |
816 | * We cannot hold synchronization semaphores for too long | |
817 | * to avoid other entity starvation. However it is more efficient | |
818 | * to read in bursts than synchronizing access for each word. | |
819 | */ | |
820 | for (i = 0; i < words; i += IXGBE_EEPROM_RD_BUFFER_MAX_COUNT) { | |
821 | count = (words - i) / IXGBE_EEPROM_RD_BUFFER_MAX_COUNT > 0 ? | |
822 | IXGBE_EEPROM_RD_BUFFER_MAX_COUNT : (words - i); | |
823 | ||
824 | status = ixgbe_read_eeprom_buffer_bit_bang(hw, offset + i, | |
825 | count, &data[i]); | |
826 | ||
827 | if (status != 0) | |
828 | break; | |
829 | } | |
830 | ||
831 | out: | |
832 | return status; | |
833 | } | |
834 | ||
835 | /** | |
836 | * ixgbe_read_eeprom_buffer_bit_bang - Read EEPROM using bit-bang | |
837 | * @hw: pointer to hardware structure | |
838 | * @offset: offset within the EEPROM to be read | |
839 | * @words: number of word(s) | |
840 | * @data: read 16 bit word(s) from EEPROM | |
841 | * | |
842 | * Reads 16 bit word(s) from EEPROM through bit-bang method | |
843 | **/ | |
844 | static s32 ixgbe_read_eeprom_buffer_bit_bang(struct ixgbe_hw *hw, u16 offset, | |
845 | u16 words, u16 *data) | |
846 | { | |
847 | s32 status; | |
848 | u16 word_in; | |
849 | u8 read_opcode = IXGBE_EEPROM_READ_OPCODE_SPI; | |
850 | u16 i; | |
851 | ||
c44ade9e JB |
852 | /* Prepare the EEPROM for reading */ |
853 | status = ixgbe_acquire_eeprom(hw); | |
854 | ||
855 | if (status == 0) { | |
856 | if (ixgbe_ready_eeprom(hw) != 0) { | |
857 | ixgbe_release_eeprom(hw); | |
858 | status = IXGBE_ERR_EEPROM; | |
859 | } | |
860 | } | |
861 | ||
862 | if (status == 0) { | |
68c7005d ET |
863 | for (i = 0; i < words; i++) { |
864 | ixgbe_standby_eeprom(hw); | |
865 | /* | |
866 | * Some SPI eeproms use the 8th address bit embedded | |
867 | * in the opcode | |
868 | */ | |
869 | if ((hw->eeprom.address_bits == 8) && | |
870 | ((offset + i) >= 128)) | |
871 | read_opcode |= IXGBE_EEPROM_A8_OPCODE_SPI; | |
872 | ||
873 | /* Send the READ command (opcode + addr) */ | |
874 | ixgbe_shift_out_eeprom_bits(hw, read_opcode, | |
875 | IXGBE_EEPROM_OPCODE_BITS); | |
876 | ixgbe_shift_out_eeprom_bits(hw, (u16)((offset + i) * 2), | |
877 | hw->eeprom.address_bits); | |
878 | ||
879 | /* Read the data. */ | |
880 | word_in = ixgbe_shift_in_eeprom_bits(hw, 16); | |
881 | data[i] = (word_in >> 8) | (word_in << 8); | |
882 | } | |
c44ade9e | 883 | |
68c7005d ET |
884 | /* End this read operation */ |
885 | ixgbe_release_eeprom(hw); | |
886 | } | |
c44ade9e | 887 | |
68c7005d ET |
888 | return status; |
889 | } | |
c44ade9e | 890 | |
68c7005d ET |
891 | /** |
892 | * ixgbe_read_eeprom_bit_bang_generic - Read EEPROM word using bit-bang | |
893 | * @hw: pointer to hardware structure | |
894 | * @offset: offset within the EEPROM to be read | |
895 | * @data: read 16 bit value from EEPROM | |
896 | * | |
897 | * Reads 16 bit value from EEPROM through bit-bang method | |
898 | **/ | |
899 | s32 ixgbe_read_eeprom_bit_bang_generic(struct ixgbe_hw *hw, u16 offset, | |
900 | u16 *data) | |
901 | { | |
902 | s32 status; | |
c44ade9e | 903 | |
68c7005d ET |
904 | hw->eeprom.ops.init_params(hw); |
905 | ||
906 | if (offset >= hw->eeprom.word_size) { | |
907 | status = IXGBE_ERR_EEPROM; | |
908 | goto out; | |
c44ade9e JB |
909 | } |
910 | ||
68c7005d ET |
911 | status = ixgbe_read_eeprom_buffer_bit_bang(hw, offset, 1, data); |
912 | ||
c44ade9e JB |
913 | out: |
914 | return status; | |
915 | } | |
916 | ||
917 | /** | |
68c7005d | 918 | * ixgbe_read_eerd_buffer_generic - Read EEPROM word(s) using EERD |
9a799d71 | 919 | * @hw: pointer to hardware structure |
68c7005d ET |
920 | * @offset: offset of word in the EEPROM to read |
921 | * @words: number of word(s) | |
922 | * @data: 16 bit word(s) from the EEPROM | |
9a799d71 | 923 | * |
68c7005d | 924 | * Reads a 16 bit word(s) from the EEPROM using the EERD register. |
9a799d71 | 925 | **/ |
68c7005d ET |
926 | s32 ixgbe_read_eerd_buffer_generic(struct ixgbe_hw *hw, u16 offset, |
927 | u16 words, u16 *data) | |
9a799d71 AK |
928 | { |
929 | u32 eerd; | |
68c7005d ET |
930 | s32 status = 0; |
931 | u32 i; | |
9a799d71 | 932 | |
c44ade9e JB |
933 | hw->eeprom.ops.init_params(hw); |
934 | ||
68c7005d ET |
935 | if (words == 0) { |
936 | status = IXGBE_ERR_INVALID_ARGUMENT; | |
937 | goto out; | |
938 | } | |
939 | ||
c44ade9e JB |
940 | if (offset >= hw->eeprom.word_size) { |
941 | status = IXGBE_ERR_EEPROM; | |
942 | goto out; | |
943 | } | |
944 | ||
68c7005d ET |
945 | for (i = 0; i < words; i++) { |
946 | eerd = ((offset + i) << IXGBE_EEPROM_RW_ADDR_SHIFT) + | |
947 | IXGBE_EEPROM_RW_REG_START; | |
9a799d71 | 948 | |
68c7005d ET |
949 | IXGBE_WRITE_REG(hw, IXGBE_EERD, eerd); |
950 | status = ixgbe_poll_eerd_eewr_done(hw, IXGBE_NVM_POLL_READ); | |
9a799d71 | 951 | |
68c7005d ET |
952 | if (status == 0) { |
953 | data[i] = (IXGBE_READ_REG(hw, IXGBE_EERD) >> | |
954 | IXGBE_EEPROM_RW_REG_DATA); | |
955 | } else { | |
956 | hw_dbg(hw, "Eeprom read timed out\n"); | |
957 | goto out; | |
958 | } | |
959 | } | |
960 | out: | |
961 | return status; | |
962 | } | |
9a799d71 | 963 | |
68c7005d ET |
964 | /** |
965 | * ixgbe_detect_eeprom_page_size_generic - Detect EEPROM page size | |
966 | * @hw: pointer to hardware structure | |
967 | * @offset: offset within the EEPROM to be used as a scratch pad | |
968 | * | |
969 | * Discover EEPROM page size by writing marching data at given offset. | |
970 | * This function is called only when we are writing a new large buffer | |
971 | * at given offset so the data would be overwritten anyway. | |
972 | **/ | |
973 | static s32 ixgbe_detect_eeprom_page_size_generic(struct ixgbe_hw *hw, | |
974 | u16 offset) | |
975 | { | |
976 | u16 data[IXGBE_EEPROM_PAGE_SIZE_MAX]; | |
977 | s32 status = 0; | |
978 | u16 i; | |
979 | ||
980 | for (i = 0; i < IXGBE_EEPROM_PAGE_SIZE_MAX; i++) | |
981 | data[i] = i; | |
982 | ||
983 | hw->eeprom.word_page_size = IXGBE_EEPROM_PAGE_SIZE_MAX; | |
984 | status = ixgbe_write_eeprom_buffer_bit_bang(hw, offset, | |
985 | IXGBE_EEPROM_PAGE_SIZE_MAX, data); | |
986 | hw->eeprom.word_page_size = 0; | |
987 | if (status != 0) | |
988 | goto out; | |
989 | ||
990 | status = ixgbe_read_eeprom_buffer_bit_bang(hw, offset, 1, data); | |
991 | if (status != 0) | |
992 | goto out; | |
993 | ||
994 | /* | |
995 | * When writing in burst more than the actual page size | |
996 | * EEPROM address wraps around current page. | |
997 | */ | |
998 | hw->eeprom.word_page_size = IXGBE_EEPROM_PAGE_SIZE_MAX - data[0]; | |
999 | ||
1000 | hw_dbg(hw, "Detected EEPROM page size = %d words.", | |
1001 | hw->eeprom.word_page_size); | |
c44ade9e | 1002 | out: |
9a799d71 AK |
1003 | return status; |
1004 | } | |
1005 | ||
eb9c3e3e | 1006 | /** |
68c7005d ET |
1007 | * ixgbe_read_eerd_generic - Read EEPROM word using EERD |
1008 | * @hw: pointer to hardware structure | |
1009 | * @offset: offset of word in the EEPROM to read | |
1010 | * @data: word read from the EEPROM | |
1011 | * | |
1012 | * Reads a 16 bit word from the EEPROM using the EERD register. | |
1013 | **/ | |
1014 | s32 ixgbe_read_eerd_generic(struct ixgbe_hw *hw, u16 offset, u16 *data) | |
1015 | { | |
1016 | return ixgbe_read_eerd_buffer_generic(hw, offset, 1, data); | |
1017 | } | |
1018 | ||
1019 | /** | |
1020 | * ixgbe_write_eewr_buffer_generic - Write EEPROM word(s) using EEWR | |
eb9c3e3e ET |
1021 | * @hw: pointer to hardware structure |
1022 | * @offset: offset of word in the EEPROM to write | |
68c7005d ET |
1023 | * @words: number of words |
1024 | * @data: word(s) write to the EEPROM | |
eb9c3e3e | 1025 | * |
68c7005d | 1026 | * Write a 16 bit word(s) to the EEPROM using the EEWR register. |
eb9c3e3e | 1027 | **/ |
68c7005d ET |
1028 | s32 ixgbe_write_eewr_buffer_generic(struct ixgbe_hw *hw, u16 offset, |
1029 | u16 words, u16 *data) | |
eb9c3e3e ET |
1030 | { |
1031 | u32 eewr; | |
68c7005d ET |
1032 | s32 status = 0; |
1033 | u16 i; | |
eb9c3e3e ET |
1034 | |
1035 | hw->eeprom.ops.init_params(hw); | |
1036 | ||
68c7005d ET |
1037 | if (words == 0) { |
1038 | status = IXGBE_ERR_INVALID_ARGUMENT; | |
1039 | goto out; | |
1040 | } | |
1041 | ||
eb9c3e3e ET |
1042 | if (offset >= hw->eeprom.word_size) { |
1043 | status = IXGBE_ERR_EEPROM; | |
1044 | goto out; | |
1045 | } | |
1046 | ||
68c7005d ET |
1047 | for (i = 0; i < words; i++) { |
1048 | eewr = ((offset + i) << IXGBE_EEPROM_RW_ADDR_SHIFT) | | |
1049 | (data[i] << IXGBE_EEPROM_RW_REG_DATA) | | |
1050 | IXGBE_EEPROM_RW_REG_START; | |
eb9c3e3e | 1051 | |
68c7005d ET |
1052 | status = ixgbe_poll_eerd_eewr_done(hw, IXGBE_NVM_POLL_WRITE); |
1053 | if (status != 0) { | |
1054 | hw_dbg(hw, "Eeprom write EEWR timed out\n"); | |
1055 | goto out; | |
1056 | } | |
eb9c3e3e | 1057 | |
68c7005d | 1058 | IXGBE_WRITE_REG(hw, IXGBE_EEWR, eewr); |
eb9c3e3e | 1059 | |
68c7005d ET |
1060 | status = ixgbe_poll_eerd_eewr_done(hw, IXGBE_NVM_POLL_WRITE); |
1061 | if (status != 0) { | |
1062 | hw_dbg(hw, "Eeprom write EEWR timed out\n"); | |
1063 | goto out; | |
1064 | } | |
eb9c3e3e ET |
1065 | } |
1066 | ||
1067 | out: | |
1068 | return status; | |
1069 | } | |
1070 | ||
68c7005d ET |
1071 | /** |
1072 | * ixgbe_write_eewr_generic - Write EEPROM word using EEWR | |
1073 | * @hw: pointer to hardware structure | |
1074 | * @offset: offset of word in the EEPROM to write | |
1075 | * @data: word write to the EEPROM | |
1076 | * | |
1077 | * Write a 16 bit word to the EEPROM using the EEWR register. | |
1078 | **/ | |
1079 | s32 ixgbe_write_eewr_generic(struct ixgbe_hw *hw, u16 offset, u16 data) | |
1080 | { | |
1081 | return ixgbe_write_eewr_buffer_generic(hw, offset, 1, &data); | |
1082 | } | |
1083 | ||
9a799d71 | 1084 | /** |
21ce849b | 1085 | * ixgbe_poll_eerd_eewr_done - Poll EERD read or EEWR write status |
9a799d71 | 1086 | * @hw: pointer to hardware structure |
21ce849b | 1087 | * @ee_reg: EEPROM flag for polling |
9a799d71 | 1088 | * |
21ce849b MC |
1089 | * Polls the status bit (bit 1) of the EERD or EEWR to determine when the |
1090 | * read or write is done respectively. | |
9a799d71 | 1091 | **/ |
eb9c3e3e | 1092 | static s32 ixgbe_poll_eerd_eewr_done(struct ixgbe_hw *hw, u32 ee_reg) |
9a799d71 AK |
1093 | { |
1094 | u32 i; | |
1095 | u32 reg; | |
1096 | s32 status = IXGBE_ERR_EEPROM; | |
1097 | ||
21ce849b MC |
1098 | for (i = 0; i < IXGBE_EERD_EEWR_ATTEMPTS; i++) { |
1099 | if (ee_reg == IXGBE_NVM_POLL_READ) | |
1100 | reg = IXGBE_READ_REG(hw, IXGBE_EERD); | |
1101 | else | |
1102 | reg = IXGBE_READ_REG(hw, IXGBE_EEWR); | |
1103 | ||
1104 | if (reg & IXGBE_EEPROM_RW_REG_DONE) { | |
9a799d71 AK |
1105 | status = 0; |
1106 | break; | |
1107 | } | |
1108 | udelay(5); | |
1109 | } | |
1110 | return status; | |
1111 | } | |
1112 | ||
c44ade9e JB |
1113 | /** |
1114 | * ixgbe_acquire_eeprom - Acquire EEPROM using bit-bang | |
1115 | * @hw: pointer to hardware structure | |
1116 | * | |
1117 | * Prepares EEPROM for access using bit-bang method. This function should | |
1118 | * be called before issuing a command to the EEPROM. | |
1119 | **/ | |
1120 | static s32 ixgbe_acquire_eeprom(struct ixgbe_hw *hw) | |
1121 | { | |
1122 | s32 status = 0; | |
dbf893ee | 1123 | u32 eec; |
c44ade9e JB |
1124 | u32 i; |
1125 | ||
5e655105 | 1126 | if (hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_EEP_SM) != 0) |
c44ade9e JB |
1127 | status = IXGBE_ERR_SWFW_SYNC; |
1128 | ||
1129 | if (status == 0) { | |
1130 | eec = IXGBE_READ_REG(hw, IXGBE_EEC); | |
1131 | ||
1132 | /* Request EEPROM Access */ | |
1133 | eec |= IXGBE_EEC_REQ; | |
1134 | IXGBE_WRITE_REG(hw, IXGBE_EEC, eec); | |
1135 | ||
1136 | for (i = 0; i < IXGBE_EEPROM_GRANT_ATTEMPTS; i++) { | |
1137 | eec = IXGBE_READ_REG(hw, IXGBE_EEC); | |
1138 | if (eec & IXGBE_EEC_GNT) | |
1139 | break; | |
1140 | udelay(5); | |
1141 | } | |
1142 | ||
1143 | /* Release if grant not acquired */ | |
1144 | if (!(eec & IXGBE_EEC_GNT)) { | |
1145 | eec &= ~IXGBE_EEC_REQ; | |
1146 | IXGBE_WRITE_REG(hw, IXGBE_EEC, eec); | |
1147 | hw_dbg(hw, "Could not acquire EEPROM grant\n"); | |
1148 | ||
5e655105 | 1149 | hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_EEP_SM); |
c44ade9e JB |
1150 | status = IXGBE_ERR_EEPROM; |
1151 | } | |
c44ade9e | 1152 | |
dbf893ee ET |
1153 | /* Setup EEPROM for Read/Write */ |
1154 | if (status == 0) { | |
1155 | /* Clear CS and SK */ | |
1156 | eec &= ~(IXGBE_EEC_CS | IXGBE_EEC_SK); | |
1157 | IXGBE_WRITE_REG(hw, IXGBE_EEC, eec); | |
1158 | IXGBE_WRITE_FLUSH(hw); | |
1159 | udelay(1); | |
1160 | } | |
c44ade9e JB |
1161 | } |
1162 | return status; | |
1163 | } | |
1164 | ||
9a799d71 AK |
1165 | /** |
1166 | * ixgbe_get_eeprom_semaphore - Get hardware semaphore | |
1167 | * @hw: pointer to hardware structure | |
1168 | * | |
1169 | * Sets the hardware semaphores so EEPROM access can occur for bit-bang method | |
1170 | **/ | |
1171 | static s32 ixgbe_get_eeprom_semaphore(struct ixgbe_hw *hw) | |
1172 | { | |
1173 | s32 status = IXGBE_ERR_EEPROM; | |
dbf893ee | 1174 | u32 timeout = 2000; |
9a799d71 AK |
1175 | u32 i; |
1176 | u32 swsm; | |
1177 | ||
9a799d71 AK |
1178 | /* Get SMBI software semaphore between device drivers first */ |
1179 | for (i = 0; i < timeout; i++) { | |
1180 | /* | |
1181 | * If the SMBI bit is 0 when we read it, then the bit will be | |
1182 | * set and we have the semaphore | |
1183 | */ | |
1184 | swsm = IXGBE_READ_REG(hw, IXGBE_SWSM); | |
1185 | if (!(swsm & IXGBE_SWSM_SMBI)) { | |
1186 | status = 0; | |
1187 | break; | |
1188 | } | |
dbf893ee | 1189 | udelay(50); |
9a799d71 AK |
1190 | } |
1191 | ||
51275d37 ET |
1192 | if (i == timeout) { |
1193 | hw_dbg(hw, "Driver can't access the Eeprom - SMBI Semaphore " | |
1194 | "not granted.\n"); | |
1195 | /* | |
1196 | * this release is particularly important because our attempts | |
1197 | * above to get the semaphore may have succeeded, and if there | |
1198 | * was a timeout, we should unconditionally clear the semaphore | |
1199 | * bits to free the driver to make progress | |
1200 | */ | |
1201 | ixgbe_release_eeprom_semaphore(hw); | |
1202 | ||
1203 | udelay(50); | |
1204 | /* | |
1205 | * one last try | |
1206 | * If the SMBI bit is 0 when we read it, then the bit will be | |
1207 | * set and we have the semaphore | |
1208 | */ | |
1209 | swsm = IXGBE_READ_REG(hw, IXGBE_SWSM); | |
1210 | if (!(swsm & IXGBE_SWSM_SMBI)) | |
1211 | status = 0; | |
1212 | } | |
1213 | ||
9a799d71 AK |
1214 | /* Now get the semaphore between SW/FW through the SWESMBI bit */ |
1215 | if (status == 0) { | |
1216 | for (i = 0; i < timeout; i++) { | |
1217 | swsm = IXGBE_READ_REG(hw, IXGBE_SWSM); | |
1218 | ||
1219 | /* Set the SW EEPROM semaphore bit to request access */ | |
1220 | swsm |= IXGBE_SWSM_SWESMBI; | |
1221 | IXGBE_WRITE_REG(hw, IXGBE_SWSM, swsm); | |
1222 | ||
1223 | /* | |
1224 | * If we set the bit successfully then we got the | |
1225 | * semaphore. | |
1226 | */ | |
1227 | swsm = IXGBE_READ_REG(hw, IXGBE_SWSM); | |
1228 | if (swsm & IXGBE_SWSM_SWESMBI) | |
1229 | break; | |
1230 | ||
1231 | udelay(50); | |
1232 | } | |
1233 | ||
1234 | /* | |
1235 | * Release semaphores and return error if SW EEPROM semaphore | |
1236 | * was not granted because we don't have access to the EEPROM | |
1237 | */ | |
1238 | if (i >= timeout) { | |
dbf893ee | 1239 | hw_dbg(hw, "SWESMBI Software EEPROM semaphore " |
b4617240 | 1240 | "not granted.\n"); |
9a799d71 AK |
1241 | ixgbe_release_eeprom_semaphore(hw); |
1242 | status = IXGBE_ERR_EEPROM; | |
1243 | } | |
dbf893ee ET |
1244 | } else { |
1245 | hw_dbg(hw, "Software semaphore SMBI between device drivers " | |
1246 | "not granted.\n"); | |
9a799d71 AK |
1247 | } |
1248 | ||
1249 | return status; | |
1250 | } | |
1251 | ||
1252 | /** | |
1253 | * ixgbe_release_eeprom_semaphore - Release hardware semaphore | |
1254 | * @hw: pointer to hardware structure | |
1255 | * | |
1256 | * This function clears hardware semaphore bits. | |
1257 | **/ | |
1258 | static void ixgbe_release_eeprom_semaphore(struct ixgbe_hw *hw) | |
1259 | { | |
1260 | u32 swsm; | |
1261 | ||
1262 | swsm = IXGBE_READ_REG(hw, IXGBE_SWSM); | |
1263 | ||
1264 | /* Release both semaphores by writing 0 to the bits SWESMBI and SMBI */ | |
1265 | swsm &= ~(IXGBE_SWSM_SWESMBI | IXGBE_SWSM_SMBI); | |
1266 | IXGBE_WRITE_REG(hw, IXGBE_SWSM, swsm); | |
3957d63d | 1267 | IXGBE_WRITE_FLUSH(hw); |
9a799d71 AK |
1268 | } |
1269 | ||
c44ade9e JB |
1270 | /** |
1271 | * ixgbe_ready_eeprom - Polls for EEPROM ready | |
1272 | * @hw: pointer to hardware structure | |
1273 | **/ | |
1274 | static s32 ixgbe_ready_eeprom(struct ixgbe_hw *hw) | |
1275 | { | |
1276 | s32 status = 0; | |
1277 | u16 i; | |
1278 | u8 spi_stat_reg; | |
1279 | ||
1280 | /* | |
1281 | * Read "Status Register" repeatedly until the LSB is cleared. The | |
1282 | * EEPROM will signal that the command has been completed by clearing | |
1283 | * bit 0 of the internal status register. If it's not cleared within | |
1284 | * 5 milliseconds, then error out. | |
1285 | */ | |
1286 | for (i = 0; i < IXGBE_EEPROM_MAX_RETRY_SPI; i += 5) { | |
1287 | ixgbe_shift_out_eeprom_bits(hw, IXGBE_EEPROM_RDSR_OPCODE_SPI, | |
1288 | IXGBE_EEPROM_OPCODE_BITS); | |
1289 | spi_stat_reg = (u8)ixgbe_shift_in_eeprom_bits(hw, 8); | |
1290 | if (!(spi_stat_reg & IXGBE_EEPROM_STATUS_RDY_SPI)) | |
1291 | break; | |
1292 | ||
1293 | udelay(5); | |
1294 | ixgbe_standby_eeprom(hw); | |
6403eab1 | 1295 | } |
c44ade9e JB |
1296 | |
1297 | /* | |
1298 | * On some parts, SPI write time could vary from 0-20mSec on 3.3V | |
1299 | * devices (and only 0-5mSec on 5V devices) | |
1300 | */ | |
1301 | if (i >= IXGBE_EEPROM_MAX_RETRY_SPI) { | |
1302 | hw_dbg(hw, "SPI EEPROM Status error\n"); | |
1303 | status = IXGBE_ERR_EEPROM; | |
1304 | } | |
1305 | ||
1306 | return status; | |
1307 | } | |
1308 | ||
1309 | /** | |
1310 | * ixgbe_standby_eeprom - Returns EEPROM to a "standby" state | |
1311 | * @hw: pointer to hardware structure | |
1312 | **/ | |
1313 | static void ixgbe_standby_eeprom(struct ixgbe_hw *hw) | |
1314 | { | |
1315 | u32 eec; | |
1316 | ||
1317 | eec = IXGBE_READ_REG(hw, IXGBE_EEC); | |
1318 | ||
1319 | /* Toggle CS to flush commands */ | |
1320 | eec |= IXGBE_EEC_CS; | |
1321 | IXGBE_WRITE_REG(hw, IXGBE_EEC, eec); | |
1322 | IXGBE_WRITE_FLUSH(hw); | |
1323 | udelay(1); | |
1324 | eec &= ~IXGBE_EEC_CS; | |
1325 | IXGBE_WRITE_REG(hw, IXGBE_EEC, eec); | |
1326 | IXGBE_WRITE_FLUSH(hw); | |
1327 | udelay(1); | |
1328 | } | |
1329 | ||
1330 | /** | |
1331 | * ixgbe_shift_out_eeprom_bits - Shift data bits out to the EEPROM. | |
1332 | * @hw: pointer to hardware structure | |
1333 | * @data: data to send to the EEPROM | |
1334 | * @count: number of bits to shift out | |
1335 | **/ | |
1336 | static void ixgbe_shift_out_eeprom_bits(struct ixgbe_hw *hw, u16 data, | |
1337 | u16 count) | |
1338 | { | |
1339 | u32 eec; | |
1340 | u32 mask; | |
1341 | u32 i; | |
1342 | ||
1343 | eec = IXGBE_READ_REG(hw, IXGBE_EEC); | |
1344 | ||
1345 | /* | |
1346 | * Mask is used to shift "count" bits of "data" out to the EEPROM | |
1347 | * one bit at a time. Determine the starting bit based on count | |
1348 | */ | |
1349 | mask = 0x01 << (count - 1); | |
1350 | ||
1351 | for (i = 0; i < count; i++) { | |
1352 | /* | |
1353 | * A "1" is shifted out to the EEPROM by setting bit "DI" to a | |
1354 | * "1", and then raising and then lowering the clock (the SK | |
1355 | * bit controls the clock input to the EEPROM). A "0" is | |
1356 | * shifted out to the EEPROM by setting "DI" to "0" and then | |
1357 | * raising and then lowering the clock. | |
1358 | */ | |
1359 | if (data & mask) | |
1360 | eec |= IXGBE_EEC_DI; | |
1361 | else | |
1362 | eec &= ~IXGBE_EEC_DI; | |
1363 | ||
1364 | IXGBE_WRITE_REG(hw, IXGBE_EEC, eec); | |
1365 | IXGBE_WRITE_FLUSH(hw); | |
1366 | ||
1367 | udelay(1); | |
1368 | ||
1369 | ixgbe_raise_eeprom_clk(hw, &eec); | |
1370 | ixgbe_lower_eeprom_clk(hw, &eec); | |
1371 | ||
1372 | /* | |
1373 | * Shift mask to signify next bit of data to shift in to the | |
1374 | * EEPROM | |
1375 | */ | |
1376 | mask = mask >> 1; | |
6403eab1 | 1377 | } |
c44ade9e JB |
1378 | |
1379 | /* We leave the "DI" bit set to "0" when we leave this routine. */ | |
1380 | eec &= ~IXGBE_EEC_DI; | |
1381 | IXGBE_WRITE_REG(hw, IXGBE_EEC, eec); | |
1382 | IXGBE_WRITE_FLUSH(hw); | |
1383 | } | |
1384 | ||
1385 | /** | |
1386 | * ixgbe_shift_in_eeprom_bits - Shift data bits in from the EEPROM | |
1387 | * @hw: pointer to hardware structure | |
1388 | **/ | |
1389 | static u16 ixgbe_shift_in_eeprom_bits(struct ixgbe_hw *hw, u16 count) | |
1390 | { | |
1391 | u32 eec; | |
1392 | u32 i; | |
1393 | u16 data = 0; | |
1394 | ||
1395 | /* | |
1396 | * In order to read a register from the EEPROM, we need to shift | |
1397 | * 'count' bits in from the EEPROM. Bits are "shifted in" by raising | |
1398 | * the clock input to the EEPROM (setting the SK bit), and then reading | |
1399 | * the value of the "DO" bit. During this "shifting in" process the | |
1400 | * "DI" bit should always be clear. | |
1401 | */ | |
1402 | eec = IXGBE_READ_REG(hw, IXGBE_EEC); | |
1403 | ||
1404 | eec &= ~(IXGBE_EEC_DO | IXGBE_EEC_DI); | |
1405 | ||
1406 | for (i = 0; i < count; i++) { | |
1407 | data = data << 1; | |
1408 | ixgbe_raise_eeprom_clk(hw, &eec); | |
1409 | ||
1410 | eec = IXGBE_READ_REG(hw, IXGBE_EEC); | |
1411 | ||
1412 | eec &= ~(IXGBE_EEC_DI); | |
1413 | if (eec & IXGBE_EEC_DO) | |
1414 | data |= 1; | |
1415 | ||
1416 | ixgbe_lower_eeprom_clk(hw, &eec); | |
1417 | } | |
1418 | ||
1419 | return data; | |
1420 | } | |
1421 | ||
1422 | /** | |
1423 | * ixgbe_raise_eeprom_clk - Raises the EEPROM's clock input. | |
1424 | * @hw: pointer to hardware structure | |
1425 | * @eec: EEC register's current value | |
1426 | **/ | |
1427 | static void ixgbe_raise_eeprom_clk(struct ixgbe_hw *hw, u32 *eec) | |
1428 | { | |
1429 | /* | |
1430 | * Raise the clock input to the EEPROM | |
1431 | * (setting the SK bit), then delay | |
1432 | */ | |
1433 | *eec = *eec | IXGBE_EEC_SK; | |
1434 | IXGBE_WRITE_REG(hw, IXGBE_EEC, *eec); | |
1435 | IXGBE_WRITE_FLUSH(hw); | |
1436 | udelay(1); | |
1437 | } | |
1438 | ||
1439 | /** | |
1440 | * ixgbe_lower_eeprom_clk - Lowers the EEPROM's clock input. | |
1441 | * @hw: pointer to hardware structure | |
1442 | * @eecd: EECD's current value | |
1443 | **/ | |
1444 | static void ixgbe_lower_eeprom_clk(struct ixgbe_hw *hw, u32 *eec) | |
1445 | { | |
1446 | /* | |
1447 | * Lower the clock input to the EEPROM (clearing the SK bit), then | |
1448 | * delay | |
1449 | */ | |
1450 | *eec = *eec & ~IXGBE_EEC_SK; | |
1451 | IXGBE_WRITE_REG(hw, IXGBE_EEC, *eec); | |
1452 | IXGBE_WRITE_FLUSH(hw); | |
1453 | udelay(1); | |
1454 | } | |
1455 | ||
1456 | /** | |
1457 | * ixgbe_release_eeprom - Release EEPROM, release semaphores | |
1458 | * @hw: pointer to hardware structure | |
1459 | **/ | |
1460 | static void ixgbe_release_eeprom(struct ixgbe_hw *hw) | |
1461 | { | |
1462 | u32 eec; | |
1463 | ||
1464 | eec = IXGBE_READ_REG(hw, IXGBE_EEC); | |
1465 | ||
1466 | eec |= IXGBE_EEC_CS; /* Pull CS high */ | |
1467 | eec &= ~IXGBE_EEC_SK; /* Lower SCK */ | |
1468 | ||
1469 | IXGBE_WRITE_REG(hw, IXGBE_EEC, eec); | |
1470 | IXGBE_WRITE_FLUSH(hw); | |
1471 | ||
1472 | udelay(1); | |
1473 | ||
1474 | /* Stop requesting EEPROM access */ | |
1475 | eec &= ~IXGBE_EEC_REQ; | |
1476 | IXGBE_WRITE_REG(hw, IXGBE_EEC, eec); | |
1477 | ||
90827996 | 1478 | hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_EEP_SM); |
dbf893ee | 1479 | |
032b4325 DS |
1480 | /* |
1481 | * Delay before attempt to obtain semaphore again to allow FW | |
1482 | * access. semaphore_delay is in ms we need us for usleep_range | |
1483 | */ | |
1484 | usleep_range(hw->eeprom.semaphore_delay * 1000, | |
1485 | hw->eeprom.semaphore_delay * 2000); | |
c44ade9e JB |
1486 | } |
1487 | ||
9a799d71 | 1488 | /** |
dbf893ee | 1489 | * ixgbe_calc_eeprom_checksum_generic - Calculates and returns the checksum |
9a799d71 AK |
1490 | * @hw: pointer to hardware structure |
1491 | **/ | |
a391f1d5 | 1492 | u16 ixgbe_calc_eeprom_checksum_generic(struct ixgbe_hw *hw) |
9a799d71 AK |
1493 | { |
1494 | u16 i; | |
1495 | u16 j; | |
1496 | u16 checksum = 0; | |
1497 | u16 length = 0; | |
1498 | u16 pointer = 0; | |
1499 | u16 word = 0; | |
1500 | ||
1501 | /* Include 0x0-0x3F in the checksum */ | |
1502 | for (i = 0; i < IXGBE_EEPROM_CHECKSUM; i++) { | |
c44ade9e | 1503 | if (hw->eeprom.ops.read(hw, i, &word) != 0) { |
9a799d71 AK |
1504 | hw_dbg(hw, "EEPROM read failed\n"); |
1505 | break; | |
1506 | } | |
1507 | checksum += word; | |
1508 | } | |
1509 | ||
1510 | /* Include all data from pointers except for the fw pointer */ | |
1511 | for (i = IXGBE_PCIE_ANALOG_PTR; i < IXGBE_FW_PTR; i++) { | |
c44ade9e | 1512 | hw->eeprom.ops.read(hw, i, &pointer); |
9a799d71 AK |
1513 | |
1514 | /* Make sure the pointer seems valid */ | |
1515 | if (pointer != 0xFFFF && pointer != 0) { | |
c44ade9e | 1516 | hw->eeprom.ops.read(hw, pointer, &length); |
9a799d71 AK |
1517 | |
1518 | if (length != 0xFFFF && length != 0) { | |
1519 | for (j = pointer+1; j <= pointer+length; j++) { | |
c44ade9e | 1520 | hw->eeprom.ops.read(hw, j, &word); |
9a799d71 AK |
1521 | checksum += word; |
1522 | } | |
1523 | } | |
1524 | } | |
1525 | } | |
1526 | ||
1527 | checksum = (u16)IXGBE_EEPROM_SUM - checksum; | |
1528 | ||
1529 | return checksum; | |
1530 | } | |
1531 | ||
1532 | /** | |
c44ade9e | 1533 | * ixgbe_validate_eeprom_checksum_generic - Validate EEPROM checksum |
9a799d71 AK |
1534 | * @hw: pointer to hardware structure |
1535 | * @checksum_val: calculated checksum | |
1536 | * | |
1537 | * Performs checksum calculation and validates the EEPROM checksum. If the | |
1538 | * caller does not need checksum_val, the value can be NULL. | |
1539 | **/ | |
c44ade9e JB |
1540 | s32 ixgbe_validate_eeprom_checksum_generic(struct ixgbe_hw *hw, |
1541 | u16 *checksum_val) | |
9a799d71 AK |
1542 | { |
1543 | s32 status; | |
1544 | u16 checksum; | |
1545 | u16 read_checksum = 0; | |
1546 | ||
1547 | /* | |
1548 | * Read the first word from the EEPROM. If this times out or fails, do | |
1549 | * not continue or we could be in for a very long wait while every | |
1550 | * EEPROM read fails | |
1551 | */ | |
c44ade9e | 1552 | status = hw->eeprom.ops.read(hw, 0, &checksum); |
9a799d71 AK |
1553 | |
1554 | if (status == 0) { | |
a391f1d5 | 1555 | checksum = hw->eeprom.ops.calc_checksum(hw); |
9a799d71 | 1556 | |
c44ade9e | 1557 | hw->eeprom.ops.read(hw, IXGBE_EEPROM_CHECKSUM, &read_checksum); |
9a799d71 AK |
1558 | |
1559 | /* | |
1560 | * Verify read checksum from EEPROM is the same as | |
1561 | * calculated checksum | |
1562 | */ | |
1563 | if (read_checksum != checksum) | |
1564 | status = IXGBE_ERR_EEPROM_CHECKSUM; | |
1565 | ||
1566 | /* If the user cares, return the calculated checksum */ | |
1567 | if (checksum_val) | |
1568 | *checksum_val = checksum; | |
1569 | } else { | |
1570 | hw_dbg(hw, "EEPROM read failed\n"); | |
1571 | } | |
1572 | ||
1573 | return status; | |
1574 | } | |
1575 | ||
c44ade9e JB |
1576 | /** |
1577 | * ixgbe_update_eeprom_checksum_generic - Updates the EEPROM checksum | |
1578 | * @hw: pointer to hardware structure | |
1579 | **/ | |
1580 | s32 ixgbe_update_eeprom_checksum_generic(struct ixgbe_hw *hw) | |
1581 | { | |
1582 | s32 status; | |
1583 | u16 checksum; | |
1584 | ||
1585 | /* | |
1586 | * Read the first word from the EEPROM. If this times out or fails, do | |
1587 | * not continue or we could be in for a very long wait while every | |
1588 | * EEPROM read fails | |
1589 | */ | |
1590 | status = hw->eeprom.ops.read(hw, 0, &checksum); | |
1591 | ||
1592 | if (status == 0) { | |
a391f1d5 | 1593 | checksum = hw->eeprom.ops.calc_checksum(hw); |
c44ade9e | 1594 | status = hw->eeprom.ops.write(hw, IXGBE_EEPROM_CHECKSUM, |
8c7bea32 | 1595 | checksum); |
c44ade9e JB |
1596 | } else { |
1597 | hw_dbg(hw, "EEPROM read failed\n"); | |
1598 | } | |
1599 | ||
1600 | return status; | |
1601 | } | |
1602 | ||
9a799d71 AK |
1603 | /** |
1604 | * ixgbe_validate_mac_addr - Validate MAC address | |
1605 | * @mac_addr: pointer to MAC address. | |
1606 | * | |
1607 | * Tests a MAC address to ensure it is a valid Individual Address | |
1608 | **/ | |
1609 | s32 ixgbe_validate_mac_addr(u8 *mac_addr) | |
1610 | { | |
1611 | s32 status = 0; | |
1612 | ||
1613 | /* Make sure it is not a multicast address */ | |
1614 | if (IXGBE_IS_MULTICAST(mac_addr)) | |
1615 | status = IXGBE_ERR_INVALID_MAC_ADDR; | |
1616 | /* Not a broadcast address */ | |
1617 | else if (IXGBE_IS_BROADCAST(mac_addr)) | |
1618 | status = IXGBE_ERR_INVALID_MAC_ADDR; | |
1619 | /* Reject the zero address */ | |
1620 | else if (mac_addr[0] == 0 && mac_addr[1] == 0 && mac_addr[2] == 0 && | |
c44ade9e | 1621 | mac_addr[3] == 0 && mac_addr[4] == 0 && mac_addr[5] == 0) |
9a799d71 AK |
1622 | status = IXGBE_ERR_INVALID_MAC_ADDR; |
1623 | ||
1624 | return status; | |
1625 | } | |
1626 | ||
1627 | /** | |
c44ade9e | 1628 | * ixgbe_set_rar_generic - Set Rx address register |
9a799d71 | 1629 | * @hw: pointer to hardware structure |
9a799d71 | 1630 | * @index: Receive address register to write |
c44ade9e JB |
1631 | * @addr: Address to put into receive address register |
1632 | * @vmdq: VMDq "set" or "pool" index | |
9a799d71 AK |
1633 | * @enable_addr: set flag that address is active |
1634 | * | |
1635 | * Puts an ethernet address into a receive address register. | |
1636 | **/ | |
c44ade9e JB |
1637 | s32 ixgbe_set_rar_generic(struct ixgbe_hw *hw, u32 index, u8 *addr, u32 vmdq, |
1638 | u32 enable_addr) | |
9a799d71 AK |
1639 | { |
1640 | u32 rar_low, rar_high; | |
c44ade9e JB |
1641 | u32 rar_entries = hw->mac.num_rar_entries; |
1642 | ||
c700f4e6 ET |
1643 | /* Make sure we are using a valid rar index range */ |
1644 | if (index >= rar_entries) { | |
1645 | hw_dbg(hw, "RAR index %d is out of range.\n", index); | |
1646 | return IXGBE_ERR_INVALID_ARGUMENT; | |
1647 | } | |
1648 | ||
c44ade9e JB |
1649 | /* setup VMDq pool selection before this RAR gets enabled */ |
1650 | hw->mac.ops.set_vmdq(hw, index, vmdq); | |
9a799d71 | 1651 | |
c700f4e6 ET |
1652 | /* |
1653 | * HW expects these in little endian so we reverse the byte | |
1654 | * order from network order (big endian) to little endian | |
1655 | */ | |
1656 | rar_low = ((u32)addr[0] | | |
1657 | ((u32)addr[1] << 8) | | |
1658 | ((u32)addr[2] << 16) | | |
1659 | ((u32)addr[3] << 24)); | |
1660 | /* | |
1661 | * Some parts put the VMDq setting in the extra RAH bits, | |
1662 | * so save everything except the lower 16 bits that hold part | |
1663 | * of the address and the address valid bit. | |
1664 | */ | |
1665 | rar_high = IXGBE_READ_REG(hw, IXGBE_RAH(index)); | |
1666 | rar_high &= ~(0x0000FFFF | IXGBE_RAH_AV); | |
1667 | rar_high |= ((u32)addr[4] | ((u32)addr[5] << 8)); | |
9a799d71 | 1668 | |
c700f4e6 ET |
1669 | if (enable_addr != 0) |
1670 | rar_high |= IXGBE_RAH_AV; | |
9a799d71 | 1671 | |
c700f4e6 ET |
1672 | IXGBE_WRITE_REG(hw, IXGBE_RAL(index), rar_low); |
1673 | IXGBE_WRITE_REG(hw, IXGBE_RAH(index), rar_high); | |
c44ade9e JB |
1674 | |
1675 | return 0; | |
1676 | } | |
1677 | ||
1678 | /** | |
1679 | * ixgbe_clear_rar_generic - Remove Rx address register | |
1680 | * @hw: pointer to hardware structure | |
1681 | * @index: Receive address register to write | |
1682 | * | |
1683 | * Clears an ethernet address from a receive address register. | |
1684 | **/ | |
1685 | s32 ixgbe_clear_rar_generic(struct ixgbe_hw *hw, u32 index) | |
1686 | { | |
1687 | u32 rar_high; | |
1688 | u32 rar_entries = hw->mac.num_rar_entries; | |
1689 | ||
1690 | /* Make sure we are using a valid rar index range */ | |
c700f4e6 | 1691 | if (index >= rar_entries) { |
c44ade9e | 1692 | hw_dbg(hw, "RAR index %d is out of range.\n", index); |
c700f4e6 | 1693 | return IXGBE_ERR_INVALID_ARGUMENT; |
c44ade9e JB |
1694 | } |
1695 | ||
c700f4e6 ET |
1696 | /* |
1697 | * Some parts put the VMDq setting in the extra RAH bits, | |
1698 | * so save everything except the lower 16 bits that hold part | |
1699 | * of the address and the address valid bit. | |
1700 | */ | |
1701 | rar_high = IXGBE_READ_REG(hw, IXGBE_RAH(index)); | |
1702 | rar_high &= ~(0x0000FFFF | IXGBE_RAH_AV); | |
1703 | ||
1704 | IXGBE_WRITE_REG(hw, IXGBE_RAL(index), 0); | |
1705 | IXGBE_WRITE_REG(hw, IXGBE_RAH(index), rar_high); | |
1706 | ||
c44ade9e JB |
1707 | /* clear VMDq pool/queue selection for this RAR */ |
1708 | hw->mac.ops.clear_vmdq(hw, index, IXGBE_CLEAR_VMDQ_ALL); | |
9a799d71 AK |
1709 | |
1710 | return 0; | |
1711 | } | |
1712 | ||
c44ade9e JB |
1713 | /** |
1714 | * ixgbe_init_rx_addrs_generic - Initializes receive address filters. | |
9a799d71 AK |
1715 | * @hw: pointer to hardware structure |
1716 | * | |
1717 | * Places the MAC address in receive address register 0 and clears the rest | |
c44ade9e | 1718 | * of the receive address registers. Clears the multicast table. Assumes |
9a799d71 AK |
1719 | * the receiver is in reset when the routine is called. |
1720 | **/ | |
c44ade9e | 1721 | s32 ixgbe_init_rx_addrs_generic(struct ixgbe_hw *hw) |
9a799d71 AK |
1722 | { |
1723 | u32 i; | |
2c5645cf | 1724 | u32 rar_entries = hw->mac.num_rar_entries; |
9a799d71 AK |
1725 | |
1726 | /* | |
1727 | * If the current mac address is valid, assume it is a software override | |
1728 | * to the permanent address. | |
1729 | * Otherwise, use the permanent address from the eeprom. | |
1730 | */ | |
1731 | if (ixgbe_validate_mac_addr(hw->mac.addr) == | |
1732 | IXGBE_ERR_INVALID_MAC_ADDR) { | |
1733 | /* Get the MAC address from the RAR0 for later reference */ | |
c44ade9e | 1734 | hw->mac.ops.get_mac_addr(hw, hw->mac.addr); |
9a799d71 | 1735 | |
ce7194d8 | 1736 | hw_dbg(hw, " Keeping Current RAR0 Addr =%pM\n", hw->mac.addr); |
9a799d71 AK |
1737 | } else { |
1738 | /* Setup the receive address. */ | |
1739 | hw_dbg(hw, "Overriding MAC Address in RAR[0]\n"); | |
ce7194d8 | 1740 | hw_dbg(hw, " New MAC Addr =%pM\n", hw->mac.addr); |
9a799d71 | 1741 | |
c44ade9e | 1742 | hw->mac.ops.set_rar(hw, 0, hw->mac.addr, 0, IXGBE_RAH_AV); |
96cc6372 AD |
1743 | |
1744 | /* clear VMDq pool/queue selection for RAR 0 */ | |
1745 | hw->mac.ops.clear_vmdq(hw, 0, IXGBE_CLEAR_VMDQ_ALL); | |
9a799d71 | 1746 | } |
c44ade9e | 1747 | hw->addr_ctrl.overflow_promisc = 0; |
9a799d71 AK |
1748 | |
1749 | hw->addr_ctrl.rar_used_count = 1; | |
1750 | ||
1751 | /* Zero out the other receive addresses. */ | |
c44ade9e | 1752 | hw_dbg(hw, "Clearing RAR[1-%d]\n", rar_entries - 1); |
9a799d71 AK |
1753 | for (i = 1; i < rar_entries; i++) { |
1754 | IXGBE_WRITE_REG(hw, IXGBE_RAL(i), 0); | |
1755 | IXGBE_WRITE_REG(hw, IXGBE_RAH(i), 0); | |
1756 | } | |
1757 | ||
1758 | /* Clear the MTA */ | |
9a799d71 AK |
1759 | hw->addr_ctrl.mta_in_use = 0; |
1760 | IXGBE_WRITE_REG(hw, IXGBE_MCSTCTRL, hw->mac.mc_filter_type); | |
1761 | ||
1762 | hw_dbg(hw, " Clearing MTA\n"); | |
2c5645cf | 1763 | for (i = 0; i < hw->mac.mcft_size; i++) |
9a799d71 AK |
1764 | IXGBE_WRITE_REG(hw, IXGBE_MTA(i), 0); |
1765 | ||
c44ade9e JB |
1766 | if (hw->mac.ops.init_uta_tables) |
1767 | hw->mac.ops.init_uta_tables(hw); | |
1768 | ||
9a799d71 AK |
1769 | return 0; |
1770 | } | |
1771 | ||
1772 | /** | |
1773 | * ixgbe_mta_vector - Determines bit-vector in multicast table to set | |
1774 | * @hw: pointer to hardware structure | |
1775 | * @mc_addr: the multicast address | |
1776 | * | |
1777 | * Extracts the 12 bits, from a multicast address, to determine which | |
1778 | * bit-vector to set in the multicast table. The hardware uses 12 bits, from | |
1779 | * incoming rx multicast addresses, to determine the bit-vector to check in | |
1780 | * the MTA. Which of the 4 combination, of 12-bits, the hardware uses is set | |
c44ade9e | 1781 | * by the MO field of the MCSTCTRL. The MO field is set during initialization |
9a799d71 AK |
1782 | * to mc_filter_type. |
1783 | **/ | |
1784 | static s32 ixgbe_mta_vector(struct ixgbe_hw *hw, u8 *mc_addr) | |
1785 | { | |
1786 | u32 vector = 0; | |
1787 | ||
1788 | switch (hw->mac.mc_filter_type) { | |
b4617240 | 1789 | case 0: /* use bits [47:36] of the address */ |
9a799d71 AK |
1790 | vector = ((mc_addr[4] >> 4) | (((u16)mc_addr[5]) << 4)); |
1791 | break; | |
b4617240 | 1792 | case 1: /* use bits [46:35] of the address */ |
9a799d71 AK |
1793 | vector = ((mc_addr[4] >> 3) | (((u16)mc_addr[5]) << 5)); |
1794 | break; | |
b4617240 | 1795 | case 2: /* use bits [45:34] of the address */ |
9a799d71 AK |
1796 | vector = ((mc_addr[4] >> 2) | (((u16)mc_addr[5]) << 6)); |
1797 | break; | |
b4617240 | 1798 | case 3: /* use bits [43:32] of the address */ |
9a799d71 AK |
1799 | vector = ((mc_addr[4]) | (((u16)mc_addr[5]) << 8)); |
1800 | break; | |
b4617240 | 1801 | default: /* Invalid mc_filter_type */ |
9a799d71 AK |
1802 | hw_dbg(hw, "MC filter type param set incorrectly\n"); |
1803 | break; | |
1804 | } | |
1805 | ||
1806 | /* vector can only be 12-bits or boundary will be exceeded */ | |
1807 | vector &= 0xFFF; | |
1808 | return vector; | |
1809 | } | |
1810 | ||
1811 | /** | |
1812 | * ixgbe_set_mta - Set bit-vector in multicast table | |
1813 | * @hw: pointer to hardware structure | |
1814 | * @hash_value: Multicast address hash value | |
1815 | * | |
1816 | * Sets the bit-vector in the multicast table. | |
1817 | **/ | |
1818 | static void ixgbe_set_mta(struct ixgbe_hw *hw, u8 *mc_addr) | |
1819 | { | |
1820 | u32 vector; | |
1821 | u32 vector_bit; | |
1822 | u32 vector_reg; | |
9a799d71 AK |
1823 | |
1824 | hw->addr_ctrl.mta_in_use++; | |
1825 | ||
1826 | vector = ixgbe_mta_vector(hw, mc_addr); | |
1827 | hw_dbg(hw, " bit-vector = 0x%03X\n", vector); | |
1828 | ||
1829 | /* | |
1830 | * The MTA is a register array of 128 32-bit registers. It is treated | |
1831 | * like an array of 4096 bits. We want to set bit | |
1832 | * BitArray[vector_value]. So we figure out what register the bit is | |
1833 | * in, read it, OR in the new bit, then write back the new value. The | |
1834 | * register is determined by the upper 7 bits of the vector value and | |
1835 | * the bit within that register are determined by the lower 5 bits of | |
1836 | * the value. | |
1837 | */ | |
1838 | vector_reg = (vector >> 5) & 0x7F; | |
1839 | vector_bit = vector & 0x1F; | |
80960ab0 | 1840 | hw->mac.mta_shadow[vector_reg] |= (1 << vector_bit); |
9a799d71 AK |
1841 | } |
1842 | ||
9a799d71 | 1843 | /** |
c44ade9e | 1844 | * ixgbe_update_mc_addr_list_generic - Updates MAC list of multicast addresses |
9a799d71 | 1845 | * @hw: pointer to hardware structure |
2853eb89 | 1846 | * @netdev: pointer to net device structure |
9a799d71 AK |
1847 | * |
1848 | * The given list replaces any existing list. Clears the MC addrs from receive | |
c44ade9e | 1849 | * address registers and the multicast table. Uses unused receive address |
9a799d71 AK |
1850 | * registers for the first multicast addresses, and hashes the rest into the |
1851 | * multicast table. | |
1852 | **/ | |
2853eb89 JP |
1853 | s32 ixgbe_update_mc_addr_list_generic(struct ixgbe_hw *hw, |
1854 | struct net_device *netdev) | |
9a799d71 | 1855 | { |
22bedad3 | 1856 | struct netdev_hw_addr *ha; |
9a799d71 | 1857 | u32 i; |
9a799d71 AK |
1858 | |
1859 | /* | |
1860 | * Set the new number of MC addresses that we are being requested to | |
1861 | * use. | |
1862 | */ | |
2853eb89 | 1863 | hw->addr_ctrl.num_mc_addrs = netdev_mc_count(netdev); |
9a799d71 AK |
1864 | hw->addr_ctrl.mta_in_use = 0; |
1865 | ||
80960ab0 | 1866 | /* Clear mta_shadow */ |
9a799d71 | 1867 | hw_dbg(hw, " Clearing MTA\n"); |
80960ab0 | 1868 | memset(&hw->mac.mta_shadow, 0, sizeof(hw->mac.mta_shadow)); |
9a799d71 | 1869 | |
80960ab0 | 1870 | /* Update mta shadow */ |
22bedad3 | 1871 | netdev_for_each_mc_addr(ha, netdev) { |
9a799d71 | 1872 | hw_dbg(hw, " Adding the multicast addresses:\n"); |
22bedad3 | 1873 | ixgbe_set_mta(hw, ha->addr); |
9a799d71 AK |
1874 | } |
1875 | ||
1876 | /* Enable mta */ | |
80960ab0 ET |
1877 | for (i = 0; i < hw->mac.mcft_size; i++) |
1878 | IXGBE_WRITE_REG_ARRAY(hw, IXGBE_MTA(0), i, | |
1879 | hw->mac.mta_shadow[i]); | |
1880 | ||
9a799d71 AK |
1881 | if (hw->addr_ctrl.mta_in_use > 0) |
1882 | IXGBE_WRITE_REG(hw, IXGBE_MCSTCTRL, | |
b4617240 | 1883 | IXGBE_MCSTCTRL_MFE | hw->mac.mc_filter_type); |
9a799d71 | 1884 | |
c44ade9e | 1885 | hw_dbg(hw, "ixgbe_update_mc_addr_list_generic Complete\n"); |
9a799d71 AK |
1886 | return 0; |
1887 | } | |
1888 | ||
1889 | /** | |
c44ade9e | 1890 | * ixgbe_enable_mc_generic - Enable multicast address in RAR |
9a799d71 AK |
1891 | * @hw: pointer to hardware structure |
1892 | * | |
c44ade9e | 1893 | * Enables multicast address in RAR and the use of the multicast hash table. |
9a799d71 | 1894 | **/ |
c44ade9e | 1895 | s32 ixgbe_enable_mc_generic(struct ixgbe_hw *hw) |
9a799d71 | 1896 | { |
c44ade9e | 1897 | struct ixgbe_addr_filter_info *a = &hw->addr_ctrl; |
9a799d71 | 1898 | |
c44ade9e JB |
1899 | if (a->mta_in_use > 0) |
1900 | IXGBE_WRITE_REG(hw, IXGBE_MCSTCTRL, IXGBE_MCSTCTRL_MFE | | |
1901 | hw->mac.mc_filter_type); | |
9a799d71 AK |
1902 | |
1903 | return 0; | |
1904 | } | |
1905 | ||
1906 | /** | |
c44ade9e | 1907 | * ixgbe_disable_mc_generic - Disable multicast address in RAR |
9a799d71 | 1908 | * @hw: pointer to hardware structure |
9a799d71 | 1909 | * |
c44ade9e | 1910 | * Disables multicast address in RAR and the use of the multicast hash table. |
9a799d71 | 1911 | **/ |
c44ade9e | 1912 | s32 ixgbe_disable_mc_generic(struct ixgbe_hw *hw) |
9a799d71 | 1913 | { |
c44ade9e | 1914 | struct ixgbe_addr_filter_info *a = &hw->addr_ctrl; |
2b9ade93 | 1915 | |
c44ade9e JB |
1916 | if (a->mta_in_use > 0) |
1917 | IXGBE_WRITE_REG(hw, IXGBE_MCSTCTRL, hw->mac.mc_filter_type); | |
9a799d71 AK |
1918 | |
1919 | return 0; | |
1920 | } | |
1921 | ||
11afc1b1 | 1922 | /** |
620fa036 | 1923 | * ixgbe_fc_enable_generic - Enable flow control |
11afc1b1 PW |
1924 | * @hw: pointer to hardware structure |
1925 | * @packetbuf_num: packet buffer number (0-7) | |
1926 | * | |
1927 | * Enable flow control according to the current settings. | |
1928 | **/ | |
620fa036 | 1929 | s32 ixgbe_fc_enable_generic(struct ixgbe_hw *hw, s32 packetbuf_num) |
11afc1b1 PW |
1930 | { |
1931 | s32 ret_val = 0; | |
620fa036 | 1932 | u32 mflcn_reg, fccfg_reg; |
11afc1b1 | 1933 | u32 reg; |
70b77628 | 1934 | u32 rx_pba_size; |
16b61beb | 1935 | u32 fcrtl, fcrth; |
70b77628 PWJ |
1936 | |
1937 | #ifdef CONFIG_DCB | |
1938 | if (hw->fc.requested_mode == ixgbe_fc_pfc) | |
1939 | goto out; | |
1940 | ||
1941 | #endif /* CONFIG_DCB */ | |
620fa036 MC |
1942 | /* Negotiate the fc mode to use */ |
1943 | ret_val = ixgbe_fc_autoneg(hw); | |
0b0c2b31 | 1944 | if (ret_val == IXGBE_ERR_FLOW_CONTROL) |
620fa036 | 1945 | goto out; |
11afc1b1 | 1946 | |
620fa036 | 1947 | /* Disable any previous flow control settings */ |
11afc1b1 PW |
1948 | mflcn_reg = IXGBE_READ_REG(hw, IXGBE_MFLCN); |
1949 | mflcn_reg &= ~(IXGBE_MFLCN_RFCE | IXGBE_MFLCN_RPFCE); | |
1950 | ||
1951 | fccfg_reg = IXGBE_READ_REG(hw, IXGBE_FCCFG); | |
1952 | fccfg_reg &= ~(IXGBE_FCCFG_TFCE_802_3X | IXGBE_FCCFG_TFCE_PRIORITY); | |
1953 | ||
1954 | /* | |
1955 | * The possible values of fc.current_mode are: | |
1956 | * 0: Flow control is completely disabled | |
1957 | * 1: Rx flow control is enabled (we can receive pause frames, | |
1958 | * but not send pause frames). | |
bb3daa4a PW |
1959 | * 2: Tx flow control is enabled (we can send pause frames but |
1960 | * we do not support receiving pause frames). | |
11afc1b1 | 1961 | * 3: Both Rx and Tx flow control (symmetric) are enabled. |
8c7bea32 | 1962 | #ifdef CONFIG_DCB |
bb3daa4a | 1963 | * 4: Priority Flow Control is enabled. |
8c7bea32 | 1964 | #endif |
11afc1b1 PW |
1965 | * other: Invalid. |
1966 | */ | |
1967 | switch (hw->fc.current_mode) { | |
1968 | case ixgbe_fc_none: | |
620fa036 MC |
1969 | /* |
1970 | * Flow control is disabled by software override or autoneg. | |
1971 | * The code below will actually disable it in the HW. | |
1972 | */ | |
11afc1b1 PW |
1973 | break; |
1974 | case ixgbe_fc_rx_pause: | |
1975 | /* | |
1976 | * Rx Flow control is enabled and Tx Flow control is | |
1977 | * disabled by software override. Since there really | |
1978 | * isn't a way to advertise that we are capable of RX | |
1979 | * Pause ONLY, we will advertise that we support both | |
1980 | * symmetric and asymmetric Rx PAUSE. Later, we will | |
1981 | * disable the adapter's ability to send PAUSE frames. | |
1982 | */ | |
1983 | mflcn_reg |= IXGBE_MFLCN_RFCE; | |
1984 | break; | |
1985 | case ixgbe_fc_tx_pause: | |
1986 | /* | |
1987 | * Tx Flow control is enabled, and Rx Flow control is | |
1988 | * disabled by software override. | |
1989 | */ | |
1990 | fccfg_reg |= IXGBE_FCCFG_TFCE_802_3X; | |
1991 | break; | |
1992 | case ixgbe_fc_full: | |
1993 | /* Flow control (both Rx and Tx) is enabled by SW override. */ | |
1994 | mflcn_reg |= IXGBE_MFLCN_RFCE; | |
1995 | fccfg_reg |= IXGBE_FCCFG_TFCE_802_3X; | |
1996 | break; | |
bb3daa4a PW |
1997 | #ifdef CONFIG_DCB |
1998 | case ixgbe_fc_pfc: | |
1999 | goto out; | |
2000 | break; | |
620fa036 | 2001 | #endif /* CONFIG_DCB */ |
11afc1b1 PW |
2002 | default: |
2003 | hw_dbg(hw, "Flow control param set incorrectly\n"); | |
539e5f02 | 2004 | ret_val = IXGBE_ERR_CONFIG; |
11afc1b1 PW |
2005 | goto out; |
2006 | break; | |
2007 | } | |
2008 | ||
620fa036 | 2009 | /* Set 802.3x based flow control settings. */ |
2132d381 | 2010 | mflcn_reg |= IXGBE_MFLCN_DPF; |
11afc1b1 PW |
2011 | IXGBE_WRITE_REG(hw, IXGBE_MFLCN, mflcn_reg); |
2012 | IXGBE_WRITE_REG(hw, IXGBE_FCCFG, fccfg_reg); | |
2013 | ||
16b61beb JF |
2014 | rx_pba_size = IXGBE_READ_REG(hw, IXGBE_RXPBSIZE(packetbuf_num)); |
2015 | rx_pba_size >>= IXGBE_RXPBSIZE_SHIFT; | |
620fa036 | 2016 | |
16b61beb JF |
2017 | fcrth = (rx_pba_size - hw->fc.high_water) << 10; |
2018 | fcrtl = (rx_pba_size - hw->fc.low_water) << 10; | |
264857b8 | 2019 | |
16b61beb JF |
2020 | if (hw->fc.current_mode & ixgbe_fc_tx_pause) { |
2021 | fcrth |= IXGBE_FCRTH_FCEN; | |
2022 | if (hw->fc.send_xon) | |
2023 | fcrtl |= IXGBE_FCRTL_XONE; | |
11afc1b1 PW |
2024 | } |
2025 | ||
16b61beb JF |
2026 | IXGBE_WRITE_REG(hw, IXGBE_FCRTH_82599(packetbuf_num), fcrth); |
2027 | IXGBE_WRITE_REG(hw, IXGBE_FCRTL_82599(packetbuf_num), fcrtl); | |
2028 | ||
11afc1b1 | 2029 | /* Configure pause time (2 TCs per register) */ |
70b77628 | 2030 | reg = IXGBE_READ_REG(hw, IXGBE_FCTTV(packetbuf_num / 2)); |
11afc1b1 PW |
2031 | if ((packetbuf_num & 1) == 0) |
2032 | reg = (reg & 0xFFFF0000) | hw->fc.pause_time; | |
2033 | else | |
2034 | reg = (reg & 0x0000FFFF) | (hw->fc.pause_time << 16); | |
2035 | IXGBE_WRITE_REG(hw, IXGBE_FCTTV(packetbuf_num / 2), reg); | |
2036 | ||
2037 | IXGBE_WRITE_REG(hw, IXGBE_FCRTV, (hw->fc.pause_time >> 1)); | |
2038 | ||
2039 | out: | |
2040 | return ret_val; | |
2041 | } | |
2042 | ||
0ecc061d PWJ |
2043 | /** |
2044 | * ixgbe_fc_autoneg - Configure flow control | |
2045 | * @hw: pointer to hardware structure | |
2046 | * | |
620fa036 MC |
2047 | * Compares our advertised flow control capabilities to those advertised by |
2048 | * our link partner, and determines the proper flow control mode to use. | |
0ecc061d PWJ |
2049 | **/ |
2050 | s32 ixgbe_fc_autoneg(struct ixgbe_hw *hw) | |
2051 | { | |
0b0c2b31 | 2052 | s32 ret_val = IXGBE_ERR_FC_NOT_NEGOTIATED; |
620fa036 | 2053 | ixgbe_link_speed speed; |
620fa036 | 2054 | bool link_up; |
0ecc061d | 2055 | |
0b0c2b31 ET |
2056 | if (hw->fc.disable_fc_autoneg) |
2057 | goto out; | |
2058 | ||
0ecc061d | 2059 | /* |
620fa036 MC |
2060 | * AN should have completed when the cable was plugged in. |
2061 | * Look for reasons to bail out. Bail out if: | |
2062 | * - FC autoneg is disabled, or if | |
539e5f02 | 2063 | * - link is not up. |
620fa036 | 2064 | * |
539e5f02 | 2065 | * Since we're being called from an LSC, link is already known to be up. |
620fa036 | 2066 | * So use link_up_wait_to_complete=false. |
0ecc061d | 2067 | */ |
620fa036 | 2068 | hw->mac.ops.check_link(hw, &speed, &link_up, false); |
0b0c2b31 ET |
2069 | if (!link_up) { |
2070 | ret_val = IXGBE_ERR_FLOW_CONTROL; | |
0ecc061d PWJ |
2071 | goto out; |
2072 | } | |
2073 | ||
0b0c2b31 ET |
2074 | switch (hw->phy.media_type) { |
2075 | /* Autoneg flow control on fiber adapters */ | |
2076 | case ixgbe_media_type_fiber: | |
2077 | if (speed == IXGBE_LINK_SPEED_1GB_FULL) | |
2078 | ret_val = ixgbe_fc_autoneg_fiber(hw); | |
2079 | break; | |
000c486d | 2080 | |
0b0c2b31 ET |
2081 | /* Autoneg flow control on backplane adapters */ |
2082 | case ixgbe_media_type_backplane: | |
2083 | ret_val = ixgbe_fc_autoneg_backplane(hw); | |
2084 | break; | |
2085 | ||
2086 | /* Autoneg flow control on copper adapters */ | |
2087 | case ixgbe_media_type_copper: | |
2088 | if (ixgbe_device_supports_autoneg_fc(hw) == 0) | |
2089 | ret_val = ixgbe_fc_autoneg_copper(hw); | |
2090 | break; | |
2091 | ||
2092 | default: | |
2093 | break; | |
2094 | } | |
2095 | ||
2096 | out: | |
2097 | if (ret_val == 0) { | |
2098 | hw->fc.fc_was_autonegged = true; | |
2099 | } else { | |
2100 | hw->fc.fc_was_autonegged = false; | |
2101 | hw->fc.current_mode = hw->fc.requested_mode; | |
539e5f02 | 2102 | } |
0b0c2b31 ET |
2103 | return ret_val; |
2104 | } | |
2105 | ||
2106 | /** | |
2107 | * ixgbe_fc_autoneg_fiber - Enable flow control on 1 gig fiber | |
2108 | * @hw: pointer to hardware structure | |
2109 | * | |
2110 | * Enable flow control according on 1 gig fiber. | |
2111 | **/ | |
2112 | static s32 ixgbe_fc_autoneg_fiber(struct ixgbe_hw *hw) | |
2113 | { | |
2114 | u32 pcs_anadv_reg, pcs_lpab_reg, linkstat; | |
2115 | s32 ret_val; | |
539e5f02 PWJ |
2116 | |
2117 | /* | |
2118 | * On multispeed fiber at 1g, bail out if | |
2119 | * - link is up but AN did not complete, or if | |
2120 | * - link is up and AN completed but timed out | |
2121 | */ | |
0b0c2b31 ET |
2122 | |
2123 | linkstat = IXGBE_READ_REG(hw, IXGBE_PCS1GLSTA); | |
2124 | if (((linkstat & IXGBE_PCS1GLSTA_AN_COMPLETE) == 0) || | |
2125 | ((linkstat & IXGBE_PCS1GLSTA_AN_TIMED_OUT) == 1)) { | |
2126 | ret_val = IXGBE_ERR_FC_NOT_NEGOTIATED; | |
2127 | goto out; | |
539e5f02 PWJ |
2128 | } |
2129 | ||
0b0c2b31 ET |
2130 | pcs_anadv_reg = IXGBE_READ_REG(hw, IXGBE_PCS1GANA); |
2131 | pcs_lpab_reg = IXGBE_READ_REG(hw, IXGBE_PCS1GANLP); | |
2132 | ||
2133 | ret_val = ixgbe_negotiate_fc(hw, pcs_anadv_reg, | |
2134 | pcs_lpab_reg, IXGBE_PCS1GANA_SYM_PAUSE, | |
2135 | IXGBE_PCS1GANA_ASM_PAUSE, | |
2136 | IXGBE_PCS1GANA_SYM_PAUSE, | |
2137 | IXGBE_PCS1GANA_ASM_PAUSE); | |
2138 | ||
2139 | out: | |
2140 | return ret_val; | |
2141 | } | |
2142 | ||
2143 | /** | |
2144 | * ixgbe_fc_autoneg_backplane - Enable flow control IEEE clause 37 | |
2145 | * @hw: pointer to hardware structure | |
2146 | * | |
2147 | * Enable flow control according to IEEE clause 37. | |
2148 | **/ | |
2149 | static s32 ixgbe_fc_autoneg_backplane(struct ixgbe_hw *hw) | |
2150 | { | |
2151 | u32 links2, anlp1_reg, autoc_reg, links; | |
2152 | s32 ret_val; | |
2153 | ||
9bbe3a57 | 2154 | /* |
0b0c2b31 ET |
2155 | * On backplane, bail out if |
2156 | * - backplane autoneg was not completed, or if | |
2157 | * - we are 82599 and link partner is not AN enabled | |
9bbe3a57 | 2158 | */ |
0b0c2b31 ET |
2159 | links = IXGBE_READ_REG(hw, IXGBE_LINKS); |
2160 | if ((links & IXGBE_LINKS_KX_AN_COMP) == 0) { | |
9bbe3a57 PW |
2161 | hw->fc.fc_was_autonegged = false; |
2162 | hw->fc.current_mode = hw->fc.requested_mode; | |
0b0c2b31 | 2163 | ret_val = IXGBE_ERR_FC_NOT_NEGOTIATED; |
9bbe3a57 PW |
2164 | goto out; |
2165 | } | |
2166 | ||
0b0c2b31 ET |
2167 | if (hw->mac.type == ixgbe_mac_82599EB) { |
2168 | links2 = IXGBE_READ_REG(hw, IXGBE_LINKS2); | |
2169 | if ((links2 & IXGBE_LINKS2_AN_SUPPORTED) == 0) { | |
2170 | hw->fc.fc_was_autonegged = false; | |
2171 | hw->fc.current_mode = hw->fc.requested_mode; | |
2172 | ret_val = IXGBE_ERR_FC_NOT_NEGOTIATED; | |
2173 | goto out; | |
2174 | } | |
2175 | } | |
0ecc061d | 2176 | /* |
0b0c2b31 | 2177 | * Read the 10g AN autoc and LP ability registers and resolve |
0ecc061d PWJ |
2178 | * local flow control settings accordingly |
2179 | */ | |
0b0c2b31 ET |
2180 | autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC); |
2181 | anlp1_reg = IXGBE_READ_REG(hw, IXGBE_ANLP1); | |
539e5f02 | 2182 | |
0b0c2b31 ET |
2183 | ret_val = ixgbe_negotiate_fc(hw, autoc_reg, |
2184 | anlp1_reg, IXGBE_AUTOC_SYM_PAUSE, IXGBE_AUTOC_ASM_PAUSE, | |
2185 | IXGBE_ANLP1_SYM_PAUSE, IXGBE_ANLP1_ASM_PAUSE); | |
2186 | ||
2187 | out: | |
2188 | return ret_val; | |
2189 | } | |
2190 | ||
2191 | /** | |
2192 | * ixgbe_fc_autoneg_copper - Enable flow control IEEE clause 37 | |
2193 | * @hw: pointer to hardware structure | |
2194 | * | |
2195 | * Enable flow control according to IEEE clause 37. | |
2196 | **/ | |
2197 | static s32 ixgbe_fc_autoneg_copper(struct ixgbe_hw *hw) | |
2198 | { | |
2199 | u16 technology_ability_reg = 0; | |
2200 | u16 lp_technology_ability_reg = 0; | |
2201 | ||
2202 | hw->phy.ops.read_reg(hw, MDIO_AN_ADVERTISE, | |
2203 | MDIO_MMD_AN, | |
2204 | &technology_ability_reg); | |
2205 | hw->phy.ops.read_reg(hw, MDIO_AN_LPA, | |
2206 | MDIO_MMD_AN, | |
2207 | &lp_technology_ability_reg); | |
2208 | ||
2209 | return ixgbe_negotiate_fc(hw, (u32)technology_ability_reg, | |
2210 | (u32)lp_technology_ability_reg, | |
2211 | IXGBE_TAF_SYM_PAUSE, IXGBE_TAF_ASM_PAUSE, | |
2212 | IXGBE_TAF_SYM_PAUSE, IXGBE_TAF_ASM_PAUSE); | |
2213 | } | |
2214 | ||
2215 | /** | |
2216 | * ixgbe_negotiate_fc - Negotiate flow control | |
2217 | * @hw: pointer to hardware structure | |
2218 | * @adv_reg: flow control advertised settings | |
2219 | * @lp_reg: link partner's flow control settings | |
2220 | * @adv_sym: symmetric pause bit in advertisement | |
2221 | * @adv_asm: asymmetric pause bit in advertisement | |
2222 | * @lp_sym: symmetric pause bit in link partner advertisement | |
2223 | * @lp_asm: asymmetric pause bit in link partner advertisement | |
2224 | * | |
2225 | * Find the intersection between advertised settings and link partner's | |
2226 | * advertised settings | |
2227 | **/ | |
2228 | static s32 ixgbe_negotiate_fc(struct ixgbe_hw *hw, u32 adv_reg, u32 lp_reg, | |
2229 | u32 adv_sym, u32 adv_asm, u32 lp_sym, u32 lp_asm) | |
2230 | { | |
2231 | if ((!(adv_reg)) || (!(lp_reg))) | |
2232 | return IXGBE_ERR_FC_NOT_NEGOTIATED; | |
2233 | ||
2234 | if ((adv_reg & adv_sym) && (lp_reg & lp_sym)) { | |
0ecc061d | 2235 | /* |
0b0c2b31 ET |
2236 | * Now we need to check if the user selected Rx ONLY |
2237 | * of pause frames. In this case, we had to advertise | |
2238 | * FULL flow control because we could not advertise RX | |
2239 | * ONLY. Hence, we must now check to see if we need to | |
2240 | * turn OFF the TRANSMISSION of PAUSE frames. | |
0ecc061d | 2241 | */ |
0b0c2b31 ET |
2242 | if (hw->fc.requested_mode == ixgbe_fc_full) { |
2243 | hw->fc.current_mode = ixgbe_fc_full; | |
2244 | hw_dbg(hw, "Flow Control = FULL.\n"); | |
539e5f02 | 2245 | } else { |
0b0c2b31 ET |
2246 | hw->fc.current_mode = ixgbe_fc_rx_pause; |
2247 | hw_dbg(hw, "Flow Control=RX PAUSE frames only\n"); | |
0ecc061d | 2248 | } |
0b0c2b31 ET |
2249 | } else if (!(adv_reg & adv_sym) && (adv_reg & adv_asm) && |
2250 | (lp_reg & lp_sym) && (lp_reg & lp_asm)) { | |
2251 | hw->fc.current_mode = ixgbe_fc_tx_pause; | |
2252 | hw_dbg(hw, "Flow Control = TX PAUSE frames only.\n"); | |
2253 | } else if ((adv_reg & adv_sym) && (adv_reg & adv_asm) && | |
2254 | !(lp_reg & lp_sym) && (lp_reg & lp_asm)) { | |
2255 | hw->fc.current_mode = ixgbe_fc_rx_pause; | |
2256 | hw_dbg(hw, "Flow Control = RX PAUSE frames only.\n"); | |
2257 | } else { | |
2258 | hw->fc.current_mode = ixgbe_fc_none; | |
2259 | hw_dbg(hw, "Flow Control = NONE.\n"); | |
0ecc061d | 2260 | } |
0b0c2b31 | 2261 | return 0; |
0ecc061d PWJ |
2262 | } |
2263 | ||
11afc1b1 | 2264 | /** |
620fa036 | 2265 | * ixgbe_setup_fc - Set up flow control |
11afc1b1 PW |
2266 | * @hw: pointer to hardware structure |
2267 | * | |
620fa036 | 2268 | * Called at init time to set up flow control. |
11afc1b1 | 2269 | **/ |
7b25cdba | 2270 | static s32 ixgbe_setup_fc(struct ixgbe_hw *hw, s32 packetbuf_num) |
11afc1b1 PW |
2271 | { |
2272 | s32 ret_val = 0; | |
0b0c2b31 ET |
2273 | u32 reg = 0, reg_bp = 0; |
2274 | u16 reg_cu = 0; | |
11afc1b1 | 2275 | |
bb3daa4a PW |
2276 | #ifdef CONFIG_DCB |
2277 | if (hw->fc.requested_mode == ixgbe_fc_pfc) { | |
2278 | hw->fc.current_mode = hw->fc.requested_mode; | |
2279 | goto out; | |
2280 | } | |
2281 | ||
0b0c2b31 | 2282 | #endif /* CONFIG_DCB */ |
11afc1b1 PW |
2283 | /* Validate the packetbuf configuration */ |
2284 | if (packetbuf_num < 0 || packetbuf_num > 7) { | |
2285 | hw_dbg(hw, "Invalid packet buffer number [%d], expected range " | |
2286 | "is 0-7\n", packetbuf_num); | |
2287 | ret_val = IXGBE_ERR_INVALID_LINK_SETTINGS; | |
2288 | goto out; | |
2289 | } | |
2290 | ||
2291 | /* | |
2292 | * Validate the water mark configuration. Zero water marks are invalid | |
2293 | * because it causes the controller to just blast out fc packets. | |
2294 | */ | |
2295 | if (!hw->fc.low_water || !hw->fc.high_water || !hw->fc.pause_time) { | |
620fa036 MC |
2296 | hw_dbg(hw, "Invalid water mark configuration\n"); |
2297 | ret_val = IXGBE_ERR_INVALID_LINK_SETTINGS; | |
2298 | goto out; | |
11afc1b1 PW |
2299 | } |
2300 | ||
2301 | /* | |
2302 | * Validate the requested mode. Strict IEEE mode does not allow | |
620fa036 | 2303 | * ixgbe_fc_rx_pause because it will cause us to fail at UNH. |
11afc1b1 PW |
2304 | */ |
2305 | if (hw->fc.strict_ieee && hw->fc.requested_mode == ixgbe_fc_rx_pause) { | |
2306 | hw_dbg(hw, "ixgbe_fc_rx_pause not valid in strict " | |
2307 | "IEEE mode\n"); | |
2308 | ret_val = IXGBE_ERR_INVALID_LINK_SETTINGS; | |
2309 | goto out; | |
2310 | } | |
2311 | ||
2312 | /* | |
2313 | * 10gig parts do not have a word in the EEPROM to determine the | |
2314 | * default flow control setting, so we explicitly set it to full. | |
2315 | */ | |
2316 | if (hw->fc.requested_mode == ixgbe_fc_default) | |
2317 | hw->fc.requested_mode = ixgbe_fc_full; | |
2318 | ||
2319 | /* | |
0b0c2b31 ET |
2320 | * Set up the 1G and 10G flow control advertisement registers so the |
2321 | * HW will be able to do fc autoneg once the cable is plugged in. If | |
2322 | * we link at 10G, the 1G advertisement is harmless and vice versa. | |
11afc1b1 | 2323 | */ |
0b0c2b31 ET |
2324 | |
2325 | switch (hw->phy.media_type) { | |
2326 | case ixgbe_media_type_fiber: | |
2327 | case ixgbe_media_type_backplane: | |
2328 | reg = IXGBE_READ_REG(hw, IXGBE_PCS1GANA); | |
2329 | reg_bp = IXGBE_READ_REG(hw, IXGBE_AUTOC); | |
2330 | break; | |
2331 | ||
2332 | case ixgbe_media_type_copper: | |
2333 | hw->phy.ops.read_reg(hw, MDIO_AN_ADVERTISE, | |
2334 | MDIO_MMD_AN, ®_cu); | |
2335 | break; | |
2336 | ||
2337 | default: | |
2338 | ; | |
2339 | } | |
11afc1b1 | 2340 | |
620fa036 MC |
2341 | /* |
2342 | * The possible values of fc.requested_mode are: | |
2343 | * 0: Flow control is completely disabled | |
2344 | * 1: Rx flow control is enabled (we can receive pause frames, | |
2345 | * but not send pause frames). | |
2346 | * 2: Tx flow control is enabled (we can send pause frames but | |
2347 | * we do not support receiving pause frames). | |
2348 | * 3: Both Rx and Tx flow control (symmetric) are enabled. | |
2349 | #ifdef CONFIG_DCB | |
2350 | * 4: Priority Flow Control is enabled. | |
2351 | #endif | |
2352 | * other: Invalid. | |
2353 | */ | |
2354 | switch (hw->fc.requested_mode) { | |
2355 | case ixgbe_fc_none: | |
2356 | /* Flow control completely disabled by software override. */ | |
2357 | reg &= ~(IXGBE_PCS1GANA_SYM_PAUSE | IXGBE_PCS1GANA_ASM_PAUSE); | |
0b0c2b31 ET |
2358 | if (hw->phy.media_type == ixgbe_media_type_backplane) |
2359 | reg_bp &= ~(IXGBE_AUTOC_SYM_PAUSE | | |
2360 | IXGBE_AUTOC_ASM_PAUSE); | |
2361 | else if (hw->phy.media_type == ixgbe_media_type_copper) | |
2362 | reg_cu &= ~(IXGBE_TAF_SYM_PAUSE | IXGBE_TAF_ASM_PAUSE); | |
620fa036 MC |
2363 | break; |
2364 | case ixgbe_fc_rx_pause: | |
2365 | /* | |
2366 | * Rx Flow control is enabled and Tx Flow control is | |
2367 | * disabled by software override. Since there really | |
2368 | * isn't a way to advertise that we are capable of RX | |
2369 | * Pause ONLY, we will advertise that we support both | |
2370 | * symmetric and asymmetric Rx PAUSE. Later, we will | |
2371 | * disable the adapter's ability to send PAUSE frames. | |
2372 | */ | |
2373 | reg |= (IXGBE_PCS1GANA_SYM_PAUSE | IXGBE_PCS1GANA_ASM_PAUSE); | |
0b0c2b31 ET |
2374 | if (hw->phy.media_type == ixgbe_media_type_backplane) |
2375 | reg_bp |= (IXGBE_AUTOC_SYM_PAUSE | | |
2376 | IXGBE_AUTOC_ASM_PAUSE); | |
2377 | else if (hw->phy.media_type == ixgbe_media_type_copper) | |
2378 | reg_cu |= (IXGBE_TAF_SYM_PAUSE | IXGBE_TAF_ASM_PAUSE); | |
620fa036 MC |
2379 | break; |
2380 | case ixgbe_fc_tx_pause: | |
2381 | /* | |
2382 | * Tx Flow control is enabled, and Rx Flow control is | |
2383 | * disabled by software override. | |
2384 | */ | |
2385 | reg |= (IXGBE_PCS1GANA_ASM_PAUSE); | |
2386 | reg &= ~(IXGBE_PCS1GANA_SYM_PAUSE); | |
0b0c2b31 ET |
2387 | if (hw->phy.media_type == ixgbe_media_type_backplane) { |
2388 | reg_bp |= (IXGBE_AUTOC_ASM_PAUSE); | |
2389 | reg_bp &= ~(IXGBE_AUTOC_SYM_PAUSE); | |
2390 | } else if (hw->phy.media_type == ixgbe_media_type_copper) { | |
2391 | reg_cu |= (IXGBE_TAF_ASM_PAUSE); | |
2392 | reg_cu &= ~(IXGBE_TAF_SYM_PAUSE); | |
2393 | } | |
620fa036 MC |
2394 | break; |
2395 | case ixgbe_fc_full: | |
2396 | /* Flow control (both Rx and Tx) is enabled by SW override. */ | |
2397 | reg |= (IXGBE_PCS1GANA_SYM_PAUSE | IXGBE_PCS1GANA_ASM_PAUSE); | |
0b0c2b31 ET |
2398 | if (hw->phy.media_type == ixgbe_media_type_backplane) |
2399 | reg_bp |= (IXGBE_AUTOC_SYM_PAUSE | | |
2400 | IXGBE_AUTOC_ASM_PAUSE); | |
2401 | else if (hw->phy.media_type == ixgbe_media_type_copper) | |
2402 | reg_cu |= (IXGBE_TAF_SYM_PAUSE | IXGBE_TAF_ASM_PAUSE); | |
620fa036 MC |
2403 | break; |
2404 | #ifdef CONFIG_DCB | |
2405 | case ixgbe_fc_pfc: | |
11afc1b1 | 2406 | goto out; |
620fa036 MC |
2407 | break; |
2408 | #endif /* CONFIG_DCB */ | |
2409 | default: | |
2410 | hw_dbg(hw, "Flow control param set incorrectly\n"); | |
539e5f02 | 2411 | ret_val = IXGBE_ERR_CONFIG; |
620fa036 MC |
2412 | goto out; |
2413 | break; | |
2414 | } | |
2415 | ||
0b0c2b31 ET |
2416 | if (hw->mac.type != ixgbe_mac_X540) { |
2417 | /* | |
2418 | * Enable auto-negotiation between the MAC & PHY; | |
2419 | * the MAC will advertise clause 37 flow control. | |
2420 | */ | |
2421 | IXGBE_WRITE_REG(hw, IXGBE_PCS1GANA, reg); | |
2422 | reg = IXGBE_READ_REG(hw, IXGBE_PCS1GLCTL); | |
620fa036 | 2423 | |
0b0c2b31 ET |
2424 | /* Disable AN timeout */ |
2425 | if (hw->fc.strict_ieee) | |
2426 | reg &= ~IXGBE_PCS1GLCTL_AN_1G_TIMEOUT_EN; | |
11afc1b1 | 2427 | |
0b0c2b31 ET |
2428 | IXGBE_WRITE_REG(hw, IXGBE_PCS1GLCTL, reg); |
2429 | hw_dbg(hw, "Set up FC; PCS1GLCTL = 0x%08X\n", reg); | |
2430 | } | |
539e5f02 PWJ |
2431 | |
2432 | /* | |
0b0c2b31 ET |
2433 | * AUTOC restart handles negotiation of 1G and 10G on backplane |
2434 | * and copper. There is no need to set the PCS1GCTL register. | |
2435 | * | |
539e5f02 | 2436 | */ |
0b0c2b31 ET |
2437 | if (hw->phy.media_type == ixgbe_media_type_backplane) { |
2438 | reg_bp |= IXGBE_AUTOC_AN_RESTART; | |
2439 | IXGBE_WRITE_REG(hw, IXGBE_AUTOC, reg_bp); | |
2440 | } else if ((hw->phy.media_type == ixgbe_media_type_copper) && | |
2441 | (ixgbe_device_supports_autoneg_fc(hw) == 0)) { | |
2442 | hw->phy.ops.write_reg(hw, MDIO_AN_ADVERTISE, | |
2443 | MDIO_MMD_AN, reg_cu); | |
539e5f02 | 2444 | } |
539e5f02 | 2445 | |
0b0c2b31 | 2446 | hw_dbg(hw, "Set up FC; IXGBE_AUTOC = 0x%08X\n", reg); |
11afc1b1 PW |
2447 | out: |
2448 | return ret_val; | |
2449 | } | |
2450 | ||
9a799d71 AK |
2451 | /** |
2452 | * ixgbe_disable_pcie_master - Disable PCI-express master access | |
2453 | * @hw: pointer to hardware structure | |
2454 | * | |
2455 | * Disables PCI-Express master access and verifies there are no pending | |
2456 | * requests. IXGBE_ERR_MASTER_REQUESTS_PENDING is returned if master disable | |
2457 | * bit hasn't caused the master requests to be disabled, else 0 | |
2458 | * is returned signifying master requests disabled. | |
2459 | **/ | |
2460 | s32 ixgbe_disable_pcie_master(struct ixgbe_hw *hw) | |
2461 | { | |
a4297dc2 | 2462 | struct ixgbe_adapter *adapter = hw->back; |
c44ade9e JB |
2463 | u32 i; |
2464 | u32 reg_val; | |
2465 | u32 number_of_queues; | |
a4297dc2 ET |
2466 | s32 status = 0; |
2467 | u16 dev_status = 0; | |
2468 | ||
2469 | /* Just jump out if bus mastering is already disabled */ | |
2470 | if (!(IXGBE_READ_REG(hw, IXGBE_STATUS) & IXGBE_STATUS_GIO)) | |
2471 | goto out; | |
9a799d71 | 2472 | |
c44ade9e JB |
2473 | /* Disable the receive unit by stopping each queue */ |
2474 | number_of_queues = hw->mac.max_rx_queues; | |
2475 | for (i = 0; i < number_of_queues; i++) { | |
2476 | reg_val = IXGBE_READ_REG(hw, IXGBE_RXDCTL(i)); | |
2477 | if (reg_val & IXGBE_RXDCTL_ENABLE) { | |
2478 | reg_val &= ~IXGBE_RXDCTL_ENABLE; | |
2479 | IXGBE_WRITE_REG(hw, IXGBE_RXDCTL(i), reg_val); | |
2480 | } | |
2481 | } | |
2482 | ||
2483 | reg_val = IXGBE_READ_REG(hw, IXGBE_CTRL); | |
2484 | reg_val |= IXGBE_CTRL_GIO_DIS; | |
2485 | IXGBE_WRITE_REG(hw, IXGBE_CTRL, reg_val); | |
9a799d71 AK |
2486 | |
2487 | for (i = 0; i < IXGBE_PCI_MASTER_DISABLE_TIMEOUT; i++) { | |
a4297dc2 ET |
2488 | if (!(IXGBE_READ_REG(hw, IXGBE_STATUS) & IXGBE_STATUS_GIO)) |
2489 | goto check_device_status; | |
2490 | udelay(100); | |
2491 | } | |
2492 | ||
2493 | hw_dbg(hw, "GIO Master Disable bit didn't clear - requesting resets\n"); | |
2494 | status = IXGBE_ERR_MASTER_REQUESTS_PENDING; | |
2495 | ||
2496 | /* | |
2497 | * Before proceeding, make sure that the PCIe block does not have | |
2498 | * transactions pending. | |
2499 | */ | |
2500 | check_device_status: | |
2501 | for (i = 0; i < IXGBE_PCI_MASTER_DISABLE_TIMEOUT; i++) { | |
2502 | pci_read_config_word(adapter->pdev, IXGBE_PCI_DEVICE_STATUS, | |
2503 | &dev_status); | |
2504 | if (!(dev_status & IXGBE_PCI_DEVICE_STATUS_TRANSACTION_PENDING)) | |
9a799d71 | 2505 | break; |
9a799d71 AK |
2506 | udelay(100); |
2507 | } | |
2508 | ||
a4297dc2 ET |
2509 | if (i == IXGBE_PCI_MASTER_DISABLE_TIMEOUT) |
2510 | hw_dbg(hw, "PCIe transaction pending bit also did not clear.\n"); | |
2511 | else | |
2512 | goto out; | |
2513 | ||
2514 | /* | |
2515 | * Two consecutive resets are required via CTRL.RST per datasheet | |
2516 | * 5.2.5.3.2 Master Disable. We set a flag to inform the reset routine | |
2517 | * of this need. The first reset prevents new master requests from | |
2518 | * being issued by our device. We then must wait 1usec for any | |
2519 | * remaining completions from the PCIe bus to trickle in, and then reset | |
2520 | * again to clear out any effects they may have had on our device. | |
2521 | */ | |
2522 | hw->mac.flags |= IXGBE_FLAGS_DOUBLE_RESET_REQUIRED; | |
2523 | ||
2524 | out: | |
9a799d71 AK |
2525 | return status; |
2526 | } | |
2527 | ||
2528 | ||
2529 | /** | |
c44ade9e | 2530 | * ixgbe_acquire_swfw_sync - Acquire SWFW semaphore |
9a799d71 | 2531 | * @hw: pointer to hardware structure |
c44ade9e | 2532 | * @mask: Mask to specify which semaphore to acquire |
9a799d71 | 2533 | * |
da74cd4a | 2534 | * Acquires the SWFW semaphore through the GSSR register for the specified |
9a799d71 AK |
2535 | * function (CSR, PHY0, PHY1, EEPROM, Flash) |
2536 | **/ | |
2537 | s32 ixgbe_acquire_swfw_sync(struct ixgbe_hw *hw, u16 mask) | |
2538 | { | |
2539 | u32 gssr; | |
2540 | u32 swmask = mask; | |
2541 | u32 fwmask = mask << 5; | |
2542 | s32 timeout = 200; | |
2543 | ||
2544 | while (timeout) { | |
dbf893ee ET |
2545 | /* |
2546 | * SW EEPROM semaphore bit is used for access to all | |
2547 | * SW_FW_SYNC/GSSR bits (not just EEPROM) | |
2548 | */ | |
9a799d71 | 2549 | if (ixgbe_get_eeprom_semaphore(hw)) |
539e5f02 | 2550 | return IXGBE_ERR_SWFW_SYNC; |
9a799d71 AK |
2551 | |
2552 | gssr = IXGBE_READ_REG(hw, IXGBE_GSSR); | |
2553 | if (!(gssr & (fwmask | swmask))) | |
2554 | break; | |
2555 | ||
2556 | /* | |
2557 | * Firmware currently using resource (fwmask) or other software | |
2558 | * thread currently using resource (swmask) | |
2559 | */ | |
2560 | ixgbe_release_eeprom_semaphore(hw); | |
032b4325 | 2561 | usleep_range(5000, 10000); |
9a799d71 AK |
2562 | timeout--; |
2563 | } | |
2564 | ||
2565 | if (!timeout) { | |
dbf893ee | 2566 | hw_dbg(hw, "Driver can't access resource, SW_FW_SYNC timeout.\n"); |
539e5f02 | 2567 | return IXGBE_ERR_SWFW_SYNC; |
9a799d71 AK |
2568 | } |
2569 | ||
2570 | gssr |= swmask; | |
2571 | IXGBE_WRITE_REG(hw, IXGBE_GSSR, gssr); | |
2572 | ||
2573 | ixgbe_release_eeprom_semaphore(hw); | |
2574 | return 0; | |
2575 | } | |
2576 | ||
2577 | /** | |
2578 | * ixgbe_release_swfw_sync - Release SWFW semaphore | |
2579 | * @hw: pointer to hardware structure | |
c44ade9e | 2580 | * @mask: Mask to specify which semaphore to release |
9a799d71 | 2581 | * |
da74cd4a | 2582 | * Releases the SWFW semaphore through the GSSR register for the specified |
9a799d71 AK |
2583 | * function (CSR, PHY0, PHY1, EEPROM, Flash) |
2584 | **/ | |
2585 | void ixgbe_release_swfw_sync(struct ixgbe_hw *hw, u16 mask) | |
2586 | { | |
2587 | u32 gssr; | |
2588 | u32 swmask = mask; | |
2589 | ||
2590 | ixgbe_get_eeprom_semaphore(hw); | |
2591 | ||
2592 | gssr = IXGBE_READ_REG(hw, IXGBE_GSSR); | |
2593 | gssr &= ~swmask; | |
2594 | IXGBE_WRITE_REG(hw, IXGBE_GSSR, gssr); | |
2595 | ||
2596 | ixgbe_release_eeprom_semaphore(hw); | |
2597 | } | |
2598 | ||
11afc1b1 PW |
2599 | /** |
2600 | * ixgbe_enable_rx_dma_generic - Enable the Rx DMA unit | |
2601 | * @hw: pointer to hardware structure | |
2602 | * @regval: register value to write to RXCTRL | |
2603 | * | |
2604 | * Enables the Rx DMA unit | |
2605 | **/ | |
2606 | s32 ixgbe_enable_rx_dma_generic(struct ixgbe_hw *hw, u32 regval) | |
2607 | { | |
2608 | IXGBE_WRITE_REG(hw, IXGBE_RXCTRL, regval); | |
2609 | ||
2610 | return 0; | |
2611 | } | |
87c12017 PW |
2612 | |
2613 | /** | |
2614 | * ixgbe_blink_led_start_generic - Blink LED based on index. | |
2615 | * @hw: pointer to hardware structure | |
2616 | * @index: led number to blink | |
2617 | **/ | |
2618 | s32 ixgbe_blink_led_start_generic(struct ixgbe_hw *hw, u32 index) | |
2619 | { | |
2620 | ixgbe_link_speed speed = 0; | |
2621 | bool link_up = 0; | |
2622 | u32 autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC); | |
2623 | u32 led_reg = IXGBE_READ_REG(hw, IXGBE_LEDCTL); | |
2624 | ||
2625 | /* | |
2626 | * Link must be up to auto-blink the LEDs; | |
2627 | * Force it if link is down. | |
2628 | */ | |
2629 | hw->mac.ops.check_link(hw, &speed, &link_up, false); | |
2630 | ||
2631 | if (!link_up) { | |
50ac58ba | 2632 | autoc_reg |= IXGBE_AUTOC_AN_RESTART; |
87c12017 PW |
2633 | autoc_reg |= IXGBE_AUTOC_FLU; |
2634 | IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc_reg); | |
032b4325 | 2635 | usleep_range(10000, 20000); |
87c12017 PW |
2636 | } |
2637 | ||
2638 | led_reg &= ~IXGBE_LED_MODE_MASK(index); | |
2639 | led_reg |= IXGBE_LED_BLINK(index); | |
2640 | IXGBE_WRITE_REG(hw, IXGBE_LEDCTL, led_reg); | |
2641 | IXGBE_WRITE_FLUSH(hw); | |
2642 | ||
2643 | return 0; | |
2644 | } | |
2645 | ||
2646 | /** | |
2647 | * ixgbe_blink_led_stop_generic - Stop blinking LED based on index. | |
2648 | * @hw: pointer to hardware structure | |
2649 | * @index: led number to stop blinking | |
2650 | **/ | |
2651 | s32 ixgbe_blink_led_stop_generic(struct ixgbe_hw *hw, u32 index) | |
2652 | { | |
2653 | u32 autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC); | |
2654 | u32 led_reg = IXGBE_READ_REG(hw, IXGBE_LEDCTL); | |
2655 | ||
2656 | autoc_reg &= ~IXGBE_AUTOC_FLU; | |
2657 | autoc_reg |= IXGBE_AUTOC_AN_RESTART; | |
2658 | IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc_reg); | |
2659 | ||
2660 | led_reg &= ~IXGBE_LED_MODE_MASK(index); | |
2661 | led_reg &= ~IXGBE_LED_BLINK(index); | |
2662 | led_reg |= IXGBE_LED_LINK_ACTIVE << IXGBE_LED_MODE_SHIFT(index); | |
2663 | IXGBE_WRITE_REG(hw, IXGBE_LEDCTL, led_reg); | |
2664 | IXGBE_WRITE_FLUSH(hw); | |
2665 | ||
2666 | return 0; | |
2667 | } | |
21ce849b MC |
2668 | |
2669 | /** | |
2670 | * ixgbe_get_san_mac_addr_offset - Get SAN MAC address offset from the EEPROM | |
2671 | * @hw: pointer to hardware structure | |
2672 | * @san_mac_offset: SAN MAC address offset | |
2673 | * | |
2674 | * This function will read the EEPROM location for the SAN MAC address | |
2675 | * pointer, and returns the value at that location. This is used in both | |
2676 | * get and set mac_addr routines. | |
2677 | **/ | |
2678 | static s32 ixgbe_get_san_mac_addr_offset(struct ixgbe_hw *hw, | |
2679 | u16 *san_mac_offset) | |
2680 | { | |
2681 | /* | |
2682 | * First read the EEPROM pointer to see if the MAC addresses are | |
2683 | * available. | |
2684 | */ | |
2685 | hw->eeprom.ops.read(hw, IXGBE_SAN_MAC_ADDR_PTR, san_mac_offset); | |
2686 | ||
2687 | return 0; | |
2688 | } | |
2689 | ||
2690 | /** | |
2691 | * ixgbe_get_san_mac_addr_generic - SAN MAC address retrieval from the EEPROM | |
2692 | * @hw: pointer to hardware structure | |
2693 | * @san_mac_addr: SAN MAC address | |
2694 | * | |
2695 | * Reads the SAN MAC address from the EEPROM, if it's available. This is | |
2696 | * per-port, so set_lan_id() must be called before reading the addresses. | |
2697 | * set_lan_id() is called by identify_sfp(), but this cannot be relied | |
2698 | * upon for non-SFP connections, so we must call it here. | |
2699 | **/ | |
2700 | s32 ixgbe_get_san_mac_addr_generic(struct ixgbe_hw *hw, u8 *san_mac_addr) | |
2701 | { | |
2702 | u16 san_mac_data, san_mac_offset; | |
2703 | u8 i; | |
2704 | ||
2705 | /* | |
2706 | * First read the EEPROM pointer to see if the MAC addresses are | |
2707 | * available. If they're not, no point in calling set_lan_id() here. | |
2708 | */ | |
2709 | ixgbe_get_san_mac_addr_offset(hw, &san_mac_offset); | |
2710 | ||
2711 | if ((san_mac_offset == 0) || (san_mac_offset == 0xFFFF)) { | |
2712 | /* | |
2713 | * No addresses available in this EEPROM. It's not an | |
2714 | * error though, so just wipe the local address and return. | |
2715 | */ | |
2716 | for (i = 0; i < 6; i++) | |
2717 | san_mac_addr[i] = 0xFF; | |
2718 | ||
2719 | goto san_mac_addr_out; | |
2720 | } | |
2721 | ||
2722 | /* make sure we know which port we need to program */ | |
2723 | hw->mac.ops.set_lan_id(hw); | |
2724 | /* apply the port offset to the address offset */ | |
2725 | (hw->bus.func) ? (san_mac_offset += IXGBE_SAN_MAC_ADDR_PORT1_OFFSET) : | |
2726 | (san_mac_offset += IXGBE_SAN_MAC_ADDR_PORT0_OFFSET); | |
2727 | for (i = 0; i < 3; i++) { | |
2728 | hw->eeprom.ops.read(hw, san_mac_offset, &san_mac_data); | |
2729 | san_mac_addr[i * 2] = (u8)(san_mac_data); | |
2730 | san_mac_addr[i * 2 + 1] = (u8)(san_mac_data >> 8); | |
2731 | san_mac_offset++; | |
2732 | } | |
2733 | ||
2734 | san_mac_addr_out: | |
2735 | return 0; | |
2736 | } | |
2737 | ||
2738 | /** | |
2739 | * ixgbe_get_pcie_msix_count_generic - Gets MSI-X vector count | |
2740 | * @hw: pointer to hardware structure | |
2741 | * | |
2742 | * Read PCIe configuration space, and get the MSI-X vector count from | |
2743 | * the capabilities table. | |
2744 | **/ | |
2745 | u32 ixgbe_get_pcie_msix_count_generic(struct ixgbe_hw *hw) | |
2746 | { | |
2747 | struct ixgbe_adapter *adapter = hw->back; | |
2748 | u16 msix_count; | |
2749 | pci_read_config_word(adapter->pdev, IXGBE_PCIE_MSIX_82599_CAPS, | |
2750 | &msix_count); | |
2751 | msix_count &= IXGBE_PCIE_MSIX_TBL_SZ_MASK; | |
2752 | ||
2753 | /* MSI-X count is zero-based in HW, so increment to give proper value */ | |
2754 | msix_count++; | |
2755 | ||
2756 | return msix_count; | |
2757 | } | |
2758 | ||
2759 | /** | |
2760 | * ixgbe_clear_vmdq_generic - Disassociate a VMDq pool index from a rx address | |
2761 | * @hw: pointer to hardware struct | |
2762 | * @rar: receive address register index to disassociate | |
2763 | * @vmdq: VMDq pool index to remove from the rar | |
2764 | **/ | |
2765 | s32 ixgbe_clear_vmdq_generic(struct ixgbe_hw *hw, u32 rar, u32 vmdq) | |
2766 | { | |
2767 | u32 mpsar_lo, mpsar_hi; | |
2768 | u32 rar_entries = hw->mac.num_rar_entries; | |
2769 | ||
c700f4e6 ET |
2770 | /* Make sure we are using a valid rar index range */ |
2771 | if (rar >= rar_entries) { | |
2772 | hw_dbg(hw, "RAR index %d is out of range.\n", rar); | |
2773 | return IXGBE_ERR_INVALID_ARGUMENT; | |
2774 | } | |
21ce849b | 2775 | |
c700f4e6 ET |
2776 | mpsar_lo = IXGBE_READ_REG(hw, IXGBE_MPSAR_LO(rar)); |
2777 | mpsar_hi = IXGBE_READ_REG(hw, IXGBE_MPSAR_HI(rar)); | |
21ce849b | 2778 | |
c700f4e6 ET |
2779 | if (!mpsar_lo && !mpsar_hi) |
2780 | goto done; | |
21ce849b | 2781 | |
c700f4e6 ET |
2782 | if (vmdq == IXGBE_CLEAR_VMDQ_ALL) { |
2783 | if (mpsar_lo) { | |
2784 | IXGBE_WRITE_REG(hw, IXGBE_MPSAR_LO(rar), 0); | |
2785 | mpsar_lo = 0; | |
2786 | } | |
2787 | if (mpsar_hi) { | |
2788 | IXGBE_WRITE_REG(hw, IXGBE_MPSAR_HI(rar), 0); | |
2789 | mpsar_hi = 0; | |
2790 | } | |
2791 | } else if (vmdq < 32) { | |
2792 | mpsar_lo &= ~(1 << vmdq); | |
2793 | IXGBE_WRITE_REG(hw, IXGBE_MPSAR_LO(rar), mpsar_lo); | |
21ce849b | 2794 | } else { |
c700f4e6 ET |
2795 | mpsar_hi &= ~(1 << (vmdq - 32)); |
2796 | IXGBE_WRITE_REG(hw, IXGBE_MPSAR_HI(rar), mpsar_hi); | |
21ce849b MC |
2797 | } |
2798 | ||
c700f4e6 ET |
2799 | /* was that the last pool using this rar? */ |
2800 | if (mpsar_lo == 0 && mpsar_hi == 0 && rar != 0) | |
2801 | hw->mac.ops.clear_rar(hw, rar); | |
21ce849b MC |
2802 | done: |
2803 | return 0; | |
2804 | } | |
2805 | ||
2806 | /** | |
2807 | * ixgbe_set_vmdq_generic - Associate a VMDq pool index with a rx address | |
2808 | * @hw: pointer to hardware struct | |
2809 | * @rar: receive address register index to associate with a VMDq index | |
2810 | * @vmdq: VMDq pool index | |
2811 | **/ | |
2812 | s32 ixgbe_set_vmdq_generic(struct ixgbe_hw *hw, u32 rar, u32 vmdq) | |
2813 | { | |
2814 | u32 mpsar; | |
2815 | u32 rar_entries = hw->mac.num_rar_entries; | |
2816 | ||
c700f4e6 ET |
2817 | /* Make sure we are using a valid rar index range */ |
2818 | if (rar >= rar_entries) { | |
21ce849b | 2819 | hw_dbg(hw, "RAR index %d is out of range.\n", rar); |
c700f4e6 ET |
2820 | return IXGBE_ERR_INVALID_ARGUMENT; |
2821 | } | |
2822 | ||
2823 | if (vmdq < 32) { | |
2824 | mpsar = IXGBE_READ_REG(hw, IXGBE_MPSAR_LO(rar)); | |
2825 | mpsar |= 1 << vmdq; | |
2826 | IXGBE_WRITE_REG(hw, IXGBE_MPSAR_LO(rar), mpsar); | |
2827 | } else { | |
2828 | mpsar = IXGBE_READ_REG(hw, IXGBE_MPSAR_HI(rar)); | |
2829 | mpsar |= 1 << (vmdq - 32); | |
2830 | IXGBE_WRITE_REG(hw, IXGBE_MPSAR_HI(rar), mpsar); | |
21ce849b MC |
2831 | } |
2832 | return 0; | |
2833 | } | |
2834 | ||
2835 | /** | |
2836 | * ixgbe_init_uta_tables_generic - Initialize the Unicast Table Array | |
2837 | * @hw: pointer to hardware structure | |
2838 | **/ | |
2839 | s32 ixgbe_init_uta_tables_generic(struct ixgbe_hw *hw) | |
2840 | { | |
2841 | int i; | |
2842 | ||
21ce849b MC |
2843 | for (i = 0; i < 128; i++) |
2844 | IXGBE_WRITE_REG(hw, IXGBE_UTA(i), 0); | |
2845 | ||
2846 | return 0; | |
2847 | } | |
2848 | ||
2849 | /** | |
2850 | * ixgbe_find_vlvf_slot - find the vlanid or the first empty slot | |
2851 | * @hw: pointer to hardware structure | |
2852 | * @vlan: VLAN id to write to VLAN filter | |
2853 | * | |
2854 | * return the VLVF index where this VLAN id should be placed | |
2855 | * | |
2856 | **/ | |
5d5b7c39 | 2857 | static s32 ixgbe_find_vlvf_slot(struct ixgbe_hw *hw, u32 vlan) |
21ce849b MC |
2858 | { |
2859 | u32 bits = 0; | |
2860 | u32 first_empty_slot = 0; | |
2861 | s32 regindex; | |
2862 | ||
2863 | /* short cut the special case */ | |
2864 | if (vlan == 0) | |
2865 | return 0; | |
2866 | ||
2867 | /* | |
2868 | * Search for the vlan id in the VLVF entries. Save off the first empty | |
2869 | * slot found along the way | |
2870 | */ | |
2871 | for (regindex = 1; regindex < IXGBE_VLVF_ENTRIES; regindex++) { | |
2872 | bits = IXGBE_READ_REG(hw, IXGBE_VLVF(regindex)); | |
2873 | if (!bits && !(first_empty_slot)) | |
2874 | first_empty_slot = regindex; | |
2875 | else if ((bits & 0x0FFF) == vlan) | |
2876 | break; | |
2877 | } | |
2878 | ||
2879 | /* | |
2880 | * If regindex is less than IXGBE_VLVF_ENTRIES, then we found the vlan | |
2881 | * in the VLVF. Else use the first empty VLVF register for this | |
2882 | * vlan id. | |
2883 | */ | |
2884 | if (regindex >= IXGBE_VLVF_ENTRIES) { | |
2885 | if (first_empty_slot) | |
2886 | regindex = first_empty_slot; | |
2887 | else { | |
2888 | hw_dbg(hw, "No space in VLVF.\n"); | |
2889 | regindex = IXGBE_ERR_NO_SPACE; | |
2890 | } | |
2891 | } | |
2892 | ||
2893 | return regindex; | |
2894 | } | |
2895 | ||
2896 | /** | |
2897 | * ixgbe_set_vfta_generic - Set VLAN filter table | |
2898 | * @hw: pointer to hardware structure | |
2899 | * @vlan: VLAN id to write to VLAN filter | |
2900 | * @vind: VMDq output index that maps queue to VLAN id in VFVFB | |
2901 | * @vlan_on: boolean flag to turn on/off VLAN in VFVF | |
2902 | * | |
2903 | * Turn on/off specified VLAN in the VLAN filter table. | |
2904 | **/ | |
2905 | s32 ixgbe_set_vfta_generic(struct ixgbe_hw *hw, u32 vlan, u32 vind, | |
2906 | bool vlan_on) | |
2907 | { | |
2908 | s32 regindex; | |
2909 | u32 bitindex; | |
2910 | u32 vfta; | |
2911 | u32 bits; | |
2912 | u32 vt; | |
2913 | u32 targetbit; | |
2914 | bool vfta_changed = false; | |
2915 | ||
2916 | if (vlan > 4095) | |
2917 | return IXGBE_ERR_PARAM; | |
2918 | ||
2919 | /* | |
2920 | * this is a 2 part operation - first the VFTA, then the | |
2921 | * VLVF and VLVFB if VT Mode is set | |
2922 | * We don't write the VFTA until we know the VLVF part succeeded. | |
2923 | */ | |
2924 | ||
2925 | /* Part 1 | |
2926 | * The VFTA is a bitstring made up of 128 32-bit registers | |
2927 | * that enable the particular VLAN id, much like the MTA: | |
2928 | * bits[11-5]: which register | |
2929 | * bits[4-0]: which bit in the register | |
2930 | */ | |
2931 | regindex = (vlan >> 5) & 0x7F; | |
2932 | bitindex = vlan & 0x1F; | |
2933 | targetbit = (1 << bitindex); | |
2934 | vfta = IXGBE_READ_REG(hw, IXGBE_VFTA(regindex)); | |
2935 | ||
2936 | if (vlan_on) { | |
2937 | if (!(vfta & targetbit)) { | |
2938 | vfta |= targetbit; | |
2939 | vfta_changed = true; | |
2940 | } | |
2941 | } else { | |
2942 | if ((vfta & targetbit)) { | |
2943 | vfta &= ~targetbit; | |
2944 | vfta_changed = true; | |
2945 | } | |
2946 | } | |
2947 | ||
2948 | /* Part 2 | |
2949 | * If VT Mode is set | |
2950 | * Either vlan_on | |
2951 | * make sure the vlan is in VLVF | |
2952 | * set the vind bit in the matching VLVFB | |
2953 | * Or !vlan_on | |
2954 | * clear the pool bit and possibly the vind | |
2955 | */ | |
2956 | vt = IXGBE_READ_REG(hw, IXGBE_VT_CTL); | |
2957 | if (vt & IXGBE_VT_CTL_VT_ENABLE) { | |
2958 | s32 vlvf_index; | |
2959 | ||
2960 | vlvf_index = ixgbe_find_vlvf_slot(hw, vlan); | |
2961 | if (vlvf_index < 0) | |
2962 | return vlvf_index; | |
2963 | ||
2964 | if (vlan_on) { | |
2965 | /* set the pool bit */ | |
2966 | if (vind < 32) { | |
2967 | bits = IXGBE_READ_REG(hw, | |
2968 | IXGBE_VLVFB(vlvf_index*2)); | |
2969 | bits |= (1 << vind); | |
2970 | IXGBE_WRITE_REG(hw, | |
2971 | IXGBE_VLVFB(vlvf_index*2), | |
2972 | bits); | |
2973 | } else { | |
2974 | bits = IXGBE_READ_REG(hw, | |
2975 | IXGBE_VLVFB((vlvf_index*2)+1)); | |
2976 | bits |= (1 << (vind-32)); | |
2977 | IXGBE_WRITE_REG(hw, | |
2978 | IXGBE_VLVFB((vlvf_index*2)+1), | |
2979 | bits); | |
2980 | } | |
2981 | } else { | |
2982 | /* clear the pool bit */ | |
2983 | if (vind < 32) { | |
2984 | bits = IXGBE_READ_REG(hw, | |
2985 | IXGBE_VLVFB(vlvf_index*2)); | |
2986 | bits &= ~(1 << vind); | |
2987 | IXGBE_WRITE_REG(hw, | |
2988 | IXGBE_VLVFB(vlvf_index*2), | |
2989 | bits); | |
2990 | bits |= IXGBE_READ_REG(hw, | |
2991 | IXGBE_VLVFB((vlvf_index*2)+1)); | |
2992 | } else { | |
2993 | bits = IXGBE_READ_REG(hw, | |
2994 | IXGBE_VLVFB((vlvf_index*2)+1)); | |
2995 | bits &= ~(1 << (vind-32)); | |
2996 | IXGBE_WRITE_REG(hw, | |
2997 | IXGBE_VLVFB((vlvf_index*2)+1), | |
2998 | bits); | |
2999 | bits |= IXGBE_READ_REG(hw, | |
3000 | IXGBE_VLVFB(vlvf_index*2)); | |
3001 | } | |
3002 | } | |
3003 | ||
3004 | /* | |
3005 | * If there are still bits set in the VLVFB registers | |
3006 | * for the VLAN ID indicated we need to see if the | |
3007 | * caller is requesting that we clear the VFTA entry bit. | |
3008 | * If the caller has requested that we clear the VFTA | |
3009 | * entry bit but there are still pools/VFs using this VLAN | |
3010 | * ID entry then ignore the request. We're not worried | |
3011 | * about the case where we're turning the VFTA VLAN ID | |
3012 | * entry bit on, only when requested to turn it off as | |
3013 | * there may be multiple pools and/or VFs using the | |
3014 | * VLAN ID entry. In that case we cannot clear the | |
3015 | * VFTA bit until all pools/VFs using that VLAN ID have also | |
3016 | * been cleared. This will be indicated by "bits" being | |
3017 | * zero. | |
3018 | */ | |
3019 | if (bits) { | |
3020 | IXGBE_WRITE_REG(hw, IXGBE_VLVF(vlvf_index), | |
3021 | (IXGBE_VLVF_VIEN | vlan)); | |
3022 | if (!vlan_on) { | |
3023 | /* someone wants to clear the vfta entry | |
3024 | * but some pools/VFs are still using it. | |
3025 | * Ignore it. */ | |
3026 | vfta_changed = false; | |
3027 | } | |
3028 | } | |
3029 | else | |
3030 | IXGBE_WRITE_REG(hw, IXGBE_VLVF(vlvf_index), 0); | |
3031 | } | |
3032 | ||
3033 | if (vfta_changed) | |
3034 | IXGBE_WRITE_REG(hw, IXGBE_VFTA(regindex), vfta); | |
3035 | ||
3036 | return 0; | |
3037 | } | |
3038 | ||
3039 | /** | |
3040 | * ixgbe_clear_vfta_generic - Clear VLAN filter table | |
3041 | * @hw: pointer to hardware structure | |
3042 | * | |
3043 | * Clears the VLAN filer table, and the VMDq index associated with the filter | |
3044 | **/ | |
3045 | s32 ixgbe_clear_vfta_generic(struct ixgbe_hw *hw) | |
3046 | { | |
3047 | u32 offset; | |
3048 | ||
3049 | for (offset = 0; offset < hw->mac.vft_size; offset++) | |
3050 | IXGBE_WRITE_REG(hw, IXGBE_VFTA(offset), 0); | |
3051 | ||
3052 | for (offset = 0; offset < IXGBE_VLVF_ENTRIES; offset++) { | |
3053 | IXGBE_WRITE_REG(hw, IXGBE_VLVF(offset), 0); | |
3054 | IXGBE_WRITE_REG(hw, IXGBE_VLVFB(offset*2), 0); | |
3055 | IXGBE_WRITE_REG(hw, IXGBE_VLVFB((offset*2)+1), 0); | |
3056 | } | |
3057 | ||
3058 | return 0; | |
3059 | } | |
3060 | ||
3061 | /** | |
3062 | * ixgbe_check_mac_link_generic - Determine link and speed status | |
3063 | * @hw: pointer to hardware structure | |
3064 | * @speed: pointer to link speed | |
3065 | * @link_up: true when link is up | |
3066 | * @link_up_wait_to_complete: bool used to wait for link up or not | |
3067 | * | |
3068 | * Reads the links register to determine if link is up and the current speed | |
3069 | **/ | |
3070 | s32 ixgbe_check_mac_link_generic(struct ixgbe_hw *hw, ixgbe_link_speed *speed, | |
8c7bea32 | 3071 | bool *link_up, bool link_up_wait_to_complete) |
21ce849b | 3072 | { |
48de36c5 | 3073 | u32 links_reg, links_orig; |
21ce849b MC |
3074 | u32 i; |
3075 | ||
48de36c5 ET |
3076 | /* clear the old state */ |
3077 | links_orig = IXGBE_READ_REG(hw, IXGBE_LINKS); | |
3078 | ||
21ce849b | 3079 | links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS); |
48de36c5 ET |
3080 | |
3081 | if (links_orig != links_reg) { | |
3082 | hw_dbg(hw, "LINKS changed from %08X to %08X\n", | |
3083 | links_orig, links_reg); | |
3084 | } | |
3085 | ||
21ce849b MC |
3086 | if (link_up_wait_to_complete) { |
3087 | for (i = 0; i < IXGBE_LINK_UP_TIME; i++) { | |
3088 | if (links_reg & IXGBE_LINKS_UP) { | |
3089 | *link_up = true; | |
3090 | break; | |
3091 | } else { | |
3092 | *link_up = false; | |
3093 | } | |
3094 | msleep(100); | |
3095 | links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS); | |
3096 | } | |
3097 | } else { | |
3098 | if (links_reg & IXGBE_LINKS_UP) | |
3099 | *link_up = true; | |
3100 | else | |
3101 | *link_up = false; | |
3102 | } | |
3103 | ||
3104 | if ((links_reg & IXGBE_LINKS_SPEED_82599) == | |
3105 | IXGBE_LINKS_SPEED_10G_82599) | |
3106 | *speed = IXGBE_LINK_SPEED_10GB_FULL; | |
3107 | else if ((links_reg & IXGBE_LINKS_SPEED_82599) == | |
63d778df | 3108 | IXGBE_LINKS_SPEED_1G_82599) |
21ce849b | 3109 | *speed = IXGBE_LINK_SPEED_1GB_FULL; |
63d778df ET |
3110 | else if ((links_reg & IXGBE_LINKS_SPEED_82599) == |
3111 | IXGBE_LINKS_SPEED_100_82599) | |
21ce849b | 3112 | *speed = IXGBE_LINK_SPEED_100_FULL; |
63d778df ET |
3113 | else |
3114 | *speed = IXGBE_LINK_SPEED_UNKNOWN; | |
21ce849b MC |
3115 | |
3116 | /* if link is down, zero out the current_mode */ | |
3117 | if (*link_up == false) { | |
3118 | hw->fc.current_mode = ixgbe_fc_none; | |
3119 | hw->fc.fc_was_autonegged = false; | |
3120 | } | |
3121 | ||
3122 | return 0; | |
3123 | } | |
a391f1d5 DS |
3124 | |
3125 | /** | |
3126 | * ixgbe_get_wwn_prefix_generic Get alternative WWNN/WWPN prefix from | |
3127 | * the EEPROM | |
3128 | * @hw: pointer to hardware structure | |
3129 | * @wwnn_prefix: the alternative WWNN prefix | |
3130 | * @wwpn_prefix: the alternative WWPN prefix | |
3131 | * | |
3132 | * This function will read the EEPROM from the alternative SAN MAC address | |
3133 | * block to check the support for the alternative WWNN/WWPN prefix support. | |
3134 | **/ | |
3135 | s32 ixgbe_get_wwn_prefix_generic(struct ixgbe_hw *hw, u16 *wwnn_prefix, | |
3136 | u16 *wwpn_prefix) | |
3137 | { | |
3138 | u16 offset, caps; | |
3139 | u16 alt_san_mac_blk_offset; | |
3140 | ||
3141 | /* clear output first */ | |
3142 | *wwnn_prefix = 0xFFFF; | |
3143 | *wwpn_prefix = 0xFFFF; | |
3144 | ||
3145 | /* check if alternative SAN MAC is supported */ | |
3146 | hw->eeprom.ops.read(hw, IXGBE_ALT_SAN_MAC_ADDR_BLK_PTR, | |
3147 | &alt_san_mac_blk_offset); | |
3148 | ||
3149 | if ((alt_san_mac_blk_offset == 0) || | |
3150 | (alt_san_mac_blk_offset == 0xFFFF)) | |
3151 | goto wwn_prefix_out; | |
3152 | ||
3153 | /* check capability in alternative san mac address block */ | |
3154 | offset = alt_san_mac_blk_offset + IXGBE_ALT_SAN_MAC_ADDR_CAPS_OFFSET; | |
3155 | hw->eeprom.ops.read(hw, offset, &caps); | |
3156 | if (!(caps & IXGBE_ALT_SAN_MAC_ADDR_CAPS_ALTWWN)) | |
3157 | goto wwn_prefix_out; | |
3158 | ||
3159 | /* get the corresponding prefix for WWNN/WWPN */ | |
3160 | offset = alt_san_mac_blk_offset + IXGBE_ALT_SAN_MAC_ADDR_WWNN_OFFSET; | |
3161 | hw->eeprom.ops.read(hw, offset, wwnn_prefix); | |
3162 | ||
3163 | offset = alt_san_mac_blk_offset + IXGBE_ALT_SAN_MAC_ADDR_WWPN_OFFSET; | |
3164 | hw->eeprom.ops.read(hw, offset, wwpn_prefix); | |
3165 | ||
3166 | wwn_prefix_out: | |
3167 | return 0; | |
3168 | } | |
a985b6c3 | 3169 | |
0b0c2b31 ET |
3170 | /** |
3171 | * ixgbe_device_supports_autoneg_fc - Check if phy supports autoneg flow | |
3172 | * control | |
3173 | * @hw: pointer to hardware structure | |
3174 | * | |
3175 | * There are several phys that do not support autoneg flow control. This | |
3176 | * function check the device id to see if the associated phy supports | |
3177 | * autoneg flow control. | |
3178 | **/ | |
3179 | static s32 ixgbe_device_supports_autoneg_fc(struct ixgbe_hw *hw) | |
3180 | { | |
3181 | ||
3182 | switch (hw->device_id) { | |
3183 | case IXGBE_DEV_ID_X540T: | |
3184 | return 0; | |
3185 | case IXGBE_DEV_ID_82599_T3_LOM: | |
3186 | return 0; | |
3187 | default: | |
3188 | return IXGBE_ERR_FC_NOT_SUPPORTED; | |
3189 | } | |
3190 | } | |
3191 | ||
a985b6c3 GR |
3192 | /** |
3193 | * ixgbe_set_mac_anti_spoofing - Enable/Disable MAC anti-spoofing | |
3194 | * @hw: pointer to hardware structure | |
3195 | * @enable: enable or disable switch for anti-spoofing | |
3196 | * @pf: Physical Function pool - do not enable anti-spoofing for the PF | |
3197 | * | |
3198 | **/ | |
3199 | void ixgbe_set_mac_anti_spoofing(struct ixgbe_hw *hw, bool enable, int pf) | |
3200 | { | |
3201 | int j; | |
3202 | int pf_target_reg = pf >> 3; | |
3203 | int pf_target_shift = pf % 8; | |
3204 | u32 pfvfspoof = 0; | |
3205 | ||
3206 | if (hw->mac.type == ixgbe_mac_82598EB) | |
3207 | return; | |
3208 | ||
3209 | if (enable) | |
3210 | pfvfspoof = IXGBE_SPOOF_MACAS_MASK; | |
3211 | ||
3212 | /* | |
3213 | * PFVFSPOOF register array is size 8 with 8 bits assigned to | |
3214 | * MAC anti-spoof enables in each register array element. | |
3215 | */ | |
3216 | for (j = 0; j < IXGBE_PFVFSPOOF_REG_COUNT; j++) | |
3217 | IXGBE_WRITE_REG(hw, IXGBE_PFVFSPOOF(j), pfvfspoof); | |
3218 | ||
3219 | /* If not enabling anti-spoofing then done */ | |
3220 | if (!enable) | |
3221 | return; | |
3222 | ||
3223 | /* | |
3224 | * The PF should be allowed to spoof so that it can support | |
3225 | * emulation mode NICs. Reset the bit assigned to the PF | |
3226 | */ | |
3227 | pfvfspoof = IXGBE_READ_REG(hw, IXGBE_PFVFSPOOF(pf_target_reg)); | |
3228 | pfvfspoof ^= (1 << pf_target_shift); | |
3229 | IXGBE_WRITE_REG(hw, IXGBE_PFVFSPOOF(pf_target_reg), pfvfspoof); | |
3230 | } | |
3231 | ||
3232 | /** | |
3233 | * ixgbe_set_vlan_anti_spoofing - Enable/Disable VLAN anti-spoofing | |
3234 | * @hw: pointer to hardware structure | |
3235 | * @enable: enable or disable switch for VLAN anti-spoofing | |
3236 | * @pf: Virtual Function pool - VF Pool to set for VLAN anti-spoofing | |
3237 | * | |
3238 | **/ | |
3239 | void ixgbe_set_vlan_anti_spoofing(struct ixgbe_hw *hw, bool enable, int vf) | |
3240 | { | |
3241 | int vf_target_reg = vf >> 3; | |
3242 | int vf_target_shift = vf % 8 + IXGBE_SPOOF_VLANAS_SHIFT; | |
3243 | u32 pfvfspoof; | |
3244 | ||
3245 | if (hw->mac.type == ixgbe_mac_82598EB) | |
3246 | return; | |
3247 | ||
3248 | pfvfspoof = IXGBE_READ_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg)); | |
3249 | if (enable) | |
3250 | pfvfspoof |= (1 << vf_target_shift); | |
3251 | else | |
3252 | pfvfspoof &= ~(1 << vf_target_shift); | |
3253 | IXGBE_WRITE_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg), pfvfspoof); | |
3254 | } | |
b776d104 ET |
3255 | |
3256 | /** | |
3257 | * ixgbe_get_device_caps_generic - Get additional device capabilities | |
3258 | * @hw: pointer to hardware structure | |
3259 | * @device_caps: the EEPROM word with the extra device capabilities | |
3260 | * | |
3261 | * This function will read the EEPROM location for the device capabilities, | |
3262 | * and return the word through device_caps. | |
3263 | **/ | |
3264 | s32 ixgbe_get_device_caps_generic(struct ixgbe_hw *hw, u16 *device_caps) | |
3265 | { | |
3266 | hw->eeprom.ops.read(hw, IXGBE_DEVICE_CAPS, device_caps); | |
3267 | ||
3268 | return 0; | |
3269 | } |