Bug Summary

File:dev/pci/ixgb_hw.c
Warning:line 1214, column 3
Value stored to 'mdio_reg' is never read

Annotated Source Code

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clang -cc1 -cc1 -triple amd64-unknown-openbsd7.4 -analyze -disable-free -clear-ast-before-backend -disable-llvm-verifier -discard-value-names -main-file-name ixgb_hw.c -analyzer-checker=core -analyzer-checker=apiModeling -analyzer-checker=unix -analyzer-checker=deadcode -analyzer-checker=security.insecureAPI.UncheckedReturn -analyzer-checker=security.insecureAPI.getpw -analyzer-checker=security.insecureAPI.gets -analyzer-checker=security.insecureAPI.mktemp -analyzer-checker=security.insecureAPI.mkstemp -analyzer-checker=security.insecureAPI.vfork -analyzer-checker=nullability.NullPassedToNonnull -analyzer-checker=nullability.NullReturnedFromNonnull -analyzer-output plist -w -setup-static-analyzer -mrelocation-model static -mframe-pointer=all -relaxed-aliasing -ffp-contract=on -fno-rounding-math -mconstructor-aliases -ffreestanding -mcmodel=kernel -target-cpu x86-64 -target-feature +retpoline-indirect-calls -target-feature +retpoline-indirect-branches -target-feature -sse2 -target-feature -sse -target-feature -3dnow -target-feature -mmx -target-feature +save-args -target-feature +retpoline-external-thunk -disable-red-zone -no-implicit-float -tune-cpu generic -debugger-tuning=gdb -fcoverage-compilation-dir=/usr/src/sys/arch/amd64/compile/GENERIC.MP/obj -nostdsysteminc -nobuiltininc -resource-dir /usr/local/llvm16/lib/clang/16 -I /usr/src/sys -I /usr/src/sys/arch/amd64/compile/GENERIC.MP/obj -I /usr/src/sys/arch -I /usr/src/sys/dev/pci/drm/include -I /usr/src/sys/dev/pci/drm/include/uapi -I /usr/src/sys/dev/pci/drm/amd/include/asic_reg -I /usr/src/sys/dev/pci/drm/amd/include -I /usr/src/sys/dev/pci/drm/amd/amdgpu -I /usr/src/sys/dev/pci/drm/amd/display -I /usr/src/sys/dev/pci/drm/amd/display/include -I /usr/src/sys/dev/pci/drm/amd/display/dc -I /usr/src/sys/dev/pci/drm/amd/display/amdgpu_dm -I /usr/src/sys/dev/pci/drm/amd/pm/inc -I /usr/src/sys/dev/pci/drm/amd/pm/legacy-dpm -I /usr/src/sys/dev/pci/drm/amd/pm/swsmu -I /usr/src/sys/dev/pci/drm/amd/pm/swsmu/inc -I /usr/src/sys/dev/pci/drm/amd/pm/swsmu/smu11 -I /usr/src/sys/dev/pci/drm/amd/pm/swsmu/smu12 -I /usr/src/sys/dev/pci/drm/amd/pm/swsmu/smu13 -I /usr/src/sys/dev/pci/drm/amd/pm/powerplay/inc -I /usr/src/sys/dev/pci/drm/amd/pm/powerplay/hwmgr -I /usr/src/sys/dev/pci/drm/amd/pm/powerplay/smumgr -I /usr/src/sys/dev/pci/drm/amd/pm/swsmu/inc -I /usr/src/sys/dev/pci/drm/amd/pm/swsmu/inc/pmfw_if -I /usr/src/sys/dev/pci/drm/amd/display/dc/inc -I /usr/src/sys/dev/pci/drm/amd/display/dc/inc/hw -I /usr/src/sys/dev/pci/drm/amd/display/dc/clk_mgr -I /usr/src/sys/dev/pci/drm/amd/display/modules/inc -I /usr/src/sys/dev/pci/drm/amd/display/modules/hdcp -I /usr/src/sys/dev/pci/drm/amd/display/dmub/inc -I /usr/src/sys/dev/pci/drm/i915 -D DDB -D DIAGNOSTIC -D KTRACE -D ACCOUNTING -D KMEMSTATS -D PTRACE -D POOL_DEBUG -D CRYPTO -D SYSVMSG -D SYSVSEM -D SYSVSHM -D UVM_SWAP_ENCRYPT -D FFS -D FFS2 -D FFS_SOFTUPDATES -D UFS_DIRHASH -D QUOTA -D EXT2FS -D MFS -D NFSCLIENT -D NFSSERVER -D CD9660 -D UDF -D MSDOSFS -D FIFO -D FUSE -D SOCKET_SPLICE -D TCP_ECN -D TCP_SIGNATURE -D INET6 -D IPSEC -D PPP_BSDCOMP -D PPP_DEFLATE -D PIPEX -D MROUTING -D MPLS -D BOOT_CONFIG -D USER_PCICONF -D APERTURE -D MTRR -D NTFS -D SUSPEND -D HIBERNATE -D PCIVERBOSE -D USBVERBOSE -D WSDISPLAY_COMPAT_USL -D WSDISPLAY_COMPAT_RAWKBD -D WSDISPLAY_DEFAULTSCREENS=6 -D X86EMU -D ONEWIREVERBOSE -D MULTIPROCESSOR -D MAXUSERS=80 -D _KERNEL -O2 -Wno-pointer-sign -Wno-address-of-packed-member -Wno-constant-conversion -Wno-unused-but-set-variable -Wno-gnu-folding-constant -fdebug-compilation-dir=/usr/src/sys/arch/amd64/compile/GENERIC.MP/obj -ferror-limit 19 -fwrapv -D_RET_PROTECTOR -ret-protector -fcf-protection=branch -fgnuc-version=4.2.1 -vectorize-loops -vectorize-slp -fno-builtin-malloc -fno-builtin-calloc -fno-builtin-realloc -fno-builtin-valloc -fno-builtin-free -fno-builtin-strdup -fno-builtin-strndup -analyzer-output=html -faddrsig -o /home/ben/Projects/scan/2024-01-11-110808-61670-1 -x c /usr/src/sys/dev/pci/ixgb_hw.c
1/*******************************************************************************
2
3 Copyright (c) 2001-2005, Intel Corporation
4 All rights reserved.
5
6 Redistribution and use in source and binary forms, with or without
7 modification, are permitted provided that the following conditions are met:
8
9 1. Redistributions of source code must retain the above copyright notice,
10 this list of conditions and the following disclaimer.
11
12 2. Redistributions in binary form must reproduce the above copyright
13 notice, this list of conditions and the following disclaimer in the
14 documentation and/or other materials provided with the distribution.
15
16 3. Neither the name of the Intel Corporation nor the names of its
17 contributors may be used to endorse or promote products derived from
18 this software without specific prior written permission.
19
20 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
21 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
24 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30 POSSIBILITY OF SUCH DAMAGE.
31
32*******************************************************************************/
33
34/* $OpenBSD: ixgb_hw.c,v 1.9 2022/01/09 05:42:56 jsg Exp $ */
35
36/* ixgb_hw.c
37 * Shared functions for accessing and configuring the adapter
38 */
39
40#include <sys/param.h>
41#include <sys/systm.h>
42#include <sys/sockio.h>
43#include <sys/mbuf.h>
44#include <sys/malloc.h>
45#include <sys/kernel.h>
46#include <sys/device.h>
47#include <sys/socket.h>
48
49#include <net/if.h>
50#include <net/if_media.h>
51
52#include <netinet/in.h>
53#include <netinet/if_ether.h>
54
55#include <uvm/uvm_extern.h>
56
57#include <dev/pci/pcireg.h>
58#include <dev/pci/pcivar.h>
59
60#include <dev/pci/ixgb_hw.h>
61#include <dev/pci/ixgb_ids.h>
62
63/* Local function prototypes */
64
65static uint32_t ixgb_hash_mc_addr(struct ixgb_hw *hw, uint8_t *mc_addr);
66
67static void ixgb_mta_set(struct ixgb_hw *hw, uint32_t hash_value);
68
69static void ixgb_get_bus_info(struct ixgb_hw *hw);
70
71static boolean_t ixgb_link_reset(struct ixgb_hw *hw);
72
73static void ixgb_optics_reset(struct ixgb_hw *hw);
74
75static void ixgb_optics_reset_bcm(struct ixgb_hw *hw);
76
77static ixgb_phy_type ixgb_identify_phy(struct ixgb_hw *hw);
78
79uint32_t ixgb_mac_reset(struct ixgb_hw *hw);
80
81uint32_t
82ixgb_mac_reset(struct ixgb_hw *hw)
83{
84 uint32_t ctrl_reg;
85
86 ctrl_reg = IXGB_CTRL0_RST0x04000000 |
87 IXGB_CTRL0_SDP3_DIR0x02000000 | /* All pins are Output=1 */
88 IXGB_CTRL0_SDP2_DIR0x01000000 |
89 IXGB_CTRL0_SDP1_DIR0x00800000 |
90 IXGB_CTRL0_SDP0_DIR0x00400000 |
91 IXGB_CTRL0_SDP30x00200000 | /* Initial value 1101 */
92 IXGB_CTRL0_SDP20x00100000 |
93 IXGB_CTRL0_SDP00x00040000;
94
95#ifdef HP_ZX1
96 /* Workaround for 82597EX reset errata */
97 IXGB_WRITE_REG_IO(hw, CTRL0, ctrl_reg);
98#else
99 IXGB_WRITE_REG(hw, CTRL0, ctrl_reg)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->write_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x00000), (ctrl_reg)));
100#endif
101
102 /* Delay a few ms just to allow the reset to complete */
103 msec_delay(IXGB_DELAY_AFTER_RESET)(*delay_func)(1000*(1));
104 ctrl_reg = IXGB_READ_REG(hw, CTRL0)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x00000)));
105#ifdef DBG0
106 /* Make sure the self-clearing global reset bit did self clear */
107 ASSERT(!(ctrl_reg & IXGB_CTRL0_RST))if(!(!(ctrl_reg & 0x04000000))) panic("IXGB: x");
108#endif
109
110 if (hw->subsystem_vendor_id == SUN_SUBVENDOR_ID0x108E) {
111 ctrl_reg = /* Enable interrupt from XFP and SerDes */
112 IXGB_CTRL1_GPI0_EN0x00000001 |
113 IXGB_CTRL1_SDP6_DIR0x00000400 |
114 IXGB_CTRL1_SDP7_DIR0x00000800 |
115 IXGB_CTRL1_SDP60x00000040 |
116 IXGB_CTRL1_SDP70x00000080;
117 IXGB_WRITE_REG(hw, CTRL1, ctrl_reg)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->write_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x00008), (ctrl_reg)));
118 ixgb_optics_reset_bcm(hw);
119 }
120
121 if (hw->phy_type == ixgb_phy_type_txn17401)
122 ixgb_optics_reset(hw);
123
124 return ctrl_reg;
125}
126
127/******************************************************************************
128 * Reset the transmit and receive units; mask and clear all interrupts.
129 *
130 * hw - Struct containing variables accessed by shared code
131 *****************************************************************************/
132boolean_t
133ixgb_adapter_stop(struct ixgb_hw *hw)
134{
135 uint32_t ctrl_reg;
136 uint32_t icr_reg;
137
138 DEBUGFUNC("ixgb_adapter_stop");;
139
140 /* If we are stopped or resetting exit gracefully and wait to be
141 * started again before accessing the hardware. */
142 if(hw->adapter_stopped) {
143 DEBUGOUT("Exiting because the adapter is already stopped!!!\n");
144 return FALSE0;
145 }
146
147 /* Set the Adapter Stopped flag so other driver functions stop touching
148 * the Hardware. */
149 hw->adapter_stopped = TRUE1;
150
151 /* Clear interrupt mask to stop board from generating interrupts */
152 DEBUGOUT("Masking off all interrupts\n");
153 IXGB_WRITE_REG(hw, IMC, 0xFFFFFFFF)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->write_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x00098), (0xFFFFFFFF)));
154
155 /* Disable the Transmit and Receive units. Then delay to allow any
156 * pending transactions to complete before we hit the MAC with the
157 * global reset. */
158 IXGB_WRITE_REG(hw, RCTL, IXGB_READ_REG(hw, RCTL) & ~IXGB_RCTL_RXEN)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->write_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x00100), (((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag
)->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x00100))) & ~0x00000002)));
159 IXGB_WRITE_REG(hw, TCTL, IXGB_READ_REG(hw, TCTL) & ~IXGB_TCTL_TXEN)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->write_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x00600), (((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag
)->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x00600))) & ~0x00000002)));
160 msec_delay(IXGB_DELAY_BEFORE_RESET)(*delay_func)(1000*(10));
161
162 /* Issue a global reset to the MAC. This will reset the chip's
163 * transmit, receive, DMA, and link units. It will not effect the
164 * current PCI configuration. The global reset bit is self- clearing,
165 * and should clear within a microsecond. */
166 DEBUGOUT("Issuing a global reset to MAC\n");
167
168 ctrl_reg = ixgb_mac_reset(hw);
169
170 /* Clear interrupt mask to stop board from generating interrupts */
171 DEBUGOUT("Masking off all interrupts\n");
172 IXGB_WRITE_REG(hw, IMC, 0xffffffff)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->write_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x00098), (0xffffffff)));
173
174 /* Clear any pending interrupt events. */
175 icr_reg = IXGB_READ_REG(hw, ICR)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x00080)));
176
177 return (ctrl_reg & IXGB_CTRL0_RST0x04000000);
178}
179
180/******************************************************************************
181 * Identifies the vendor of the optics module on the adapter. The SR adapters
182 * support two different types of XPAK optics, so it is necessary to determine
183 * which optics are present before applying any optics-specific workarounds.
184 *
185 * hw - Struct containing variables accessed by shared code.
186 *
187 * Returns: the vendor of the XPAK optics module.
188 *****************************************************************************/
189static ixgb_xpak_vendor
190ixgb_identify_xpak_vendor(struct ixgb_hw *hw)
191{
192 uint32_t i;
193 uint16_t vendor_name[5];
194 ixgb_xpak_vendor xpak_vendor;
195
196 DEBUGFUNC("ixgb_identify_xpak_vendor");;
197
198 /* Read the first few bytes of the vendor string from the XPAK NVR
199 * registers. These are standard XENPAK/XPAK registers, so all XPAK
200 * devices should implement them. */
201 for(i = 0; i < 5; i++) {
202 vendor_name[i] =
203 ixgb_read_phy_reg(hw, MDIO_PMA_PMD_XPAK_VENDOR_NAME0x803A + i,
204 IXGB_PHY_ADDRESS0x0, MDIO_PMA_PMD_DID0x01);
205 }
206
207 /* Determine the actual vendor */
208 if (vendor_name[0] == 'I' &&
209 vendor_name[1] == 'N' &&
210 vendor_name[2] == 'T' &&
211 vendor_name[3] == 'E' &&
212 vendor_name[4] == 'L') {
213 xpak_vendor = ixgb_xpak_vendor_intel;
214 }
215 else {
216 xpak_vendor = ixgb_xpak_vendor_infineon;
217 }
218 return (xpak_vendor);
219}
220
221/******************************************************************************
222 * Determine the physical layer module on the adapter.
223 *
224 * hw - Struct containing variables accessed by shared code. The device_id
225 * field must be (correctly) populated before calling this routine.
226 *
227 * Returns: the phy type of the adapter.
228 *****************************************************************************/
229static ixgb_phy_type
230ixgb_identify_phy(struct ixgb_hw *hw)
231{
232 ixgb_phy_type phy_type;
233 ixgb_xpak_vendor xpak_vendor;
234
235 DEBUGFUNC("ixgb_identify_phy");;
236
237 /* Infer the transceiver/phy type from the device id */
238 switch(hw->device_id) {
239 case IXGB_DEVICE_ID_82597EX0x1048:
240 DEBUGOUT("Identified TXN17401 optics\n");
241 phy_type = ixgb_phy_type_txn17401;
242 break;
243
244 case IXGB_DEVICE_ID_82597EX_SR0x1A48:
245 /* The SR adapters carry two different types of XPAK optics
246 * modules; read the vendor identifier to determine the exact
247 * type of optics. */
248 xpak_vendor = ixgb_identify_xpak_vendor(hw);
249 if(xpak_vendor == ixgb_xpak_vendor_intel) {
250 DEBUGOUT("Identified TXN17201 optics\n");
251 phy_type = ixgb_phy_type_txn17201;
252 } else {
253 DEBUGOUT("Identified G6005 optics\n");
254 phy_type = ixgb_phy_type_g6005;
255 }
256 break;
257
258 case IXGB_DEVICE_ID_82597EX_LR0x1B48:
259 DEBUGOUT("Identified G6104 optics\n");
260 phy_type = ixgb_phy_type_g6104;
261 break;
262
263 case IXGB_DEVICE_ID_82597EX_CX40x109E:
264 DEBUGOUT("Identified CX4\n");
265 xpak_vendor = ixgb_identify_xpak_vendor(hw);
266 if(xpak_vendor == ixgb_xpak_vendor_intel) {
267 DEBUGOUT("Identified TXN17201 optics\n");
268 phy_type = ixgb_phy_type_txn17201;
269 } else {
270 DEBUGOUT("Identified G6005 optics\n");
271 phy_type = ixgb_phy_type_g6005;
272 }
273 break;
274
275 default:
276 DEBUGOUT("Unknown physical layer module\n");
277 phy_type = ixgb_phy_type_unknown;
278 break;
279 }
280
281 /* update phy type for sun specific board */
282 if (hw->subsystem_vendor_id == SUN_SUBVENDOR_ID0x108E)
283 phy_type = ixgb_phy_type_bcm;
284
285 return (phy_type);
286}
287
288/******************************************************************************
289 * Performs basic configuration of the adapter.
290 *
291 * hw - Struct containing variables accessed by shared code
292 *
293 * Resets the controller.
294 * Reads and validates the EEPROM.
295 * Initializes the receive address registers.
296 * Initializes the multicast table.
297 * Clears all on-chip counters.
298 * Calls routine to setup flow control settings.
299 * Leaves the transmit and receive units disabled and uninitialized.
300 *
301 * Returns:
302 * TRUE if successful,
303 * FALSE if unrecoverable problems were encountered.
304 *****************************************************************************/
305boolean_t
306ixgb_init_hw(struct ixgb_hw *hw)
307{
308 uint32_t i;
309 uint32_t ctrl_reg;
310 boolean_t status;
311
312 DEBUGFUNC("ixgb_init_hw");;
313
314 /* Issue a global reset to the MAC. This will reset the chip's
315 * transmit, receive, DMA, and link units. It will not effect the
316 * current PCI configuration. The global reset bit is self- clearing,
317 * and should clear within a microsecond. */
318 DEBUGOUT("Issuing a global reset to MAC\n");
319
320 ctrl_reg = ixgb_mac_reset(hw);
321
322 DEBUGOUT("Issuing an EE reset to MAC\n");
323#ifdef HP_ZX1
324 /* Workaround for 82597EX reset errata */
325 IXGB_WRITE_REG_IO(hw, CTRL1, IXGB_CTRL1_EE_RST0x00002000);
326#else
327 IXGB_WRITE_REG(hw, CTRL1, IXGB_CTRL1_EE_RST)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->write_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x00008), (0x00002000)));
328#endif
329
330 /* Delay a few ms just to allow the reset to complete */
331 msec_delay(IXGB_DELAY_AFTER_EE_RESET)(*delay_func)(1000*(10));
332
333 if(ixgb_get_eeprom_data(hw) == FALSE0) {
334 return (FALSE0);
335 }
336
337 /* Use the device id to determine the type of phy/transceiver. */
338 hw->device_id = ixgb_get_ee_device_id(hw);
339 hw->phy_type = ixgb_identify_phy(hw);
340
341 /* Setup the receive addresses. Receive Address Registers (RARs 0 -
342 * 15). */
343 ixgb_init_rx_addrs(hw);
344
345 /*
346 * Check that a valid MAC address has been set.
347 * If it is not valid, we fail hardware init.
348 */
349 if(!mac_addr_valid(hw->curr_mac_addr)) {
350 DEBUGOUT("MAC address invalid after ixgb_init_rx_addrs\n");
351 return (FALSE0);
352 }
353
354 /* tell the routines in this file they can access hardware again */
355 hw->adapter_stopped = FALSE0;
356
357 /* Fill in the bus_info structure */
358 ixgb_get_bus_info(hw);
359
360 /* Zero out the Multicast HASH table */
361 DEBUGOUT("Zeroing the MTA\n");
362 for(i = 0; i < IXGB_MC_TBL_SIZE128; i++)
363 IXGB_WRITE_REG_ARRAY(hw, MTA, i, 0)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->write_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), ((0x00200 + ((i) << 2))), (0)));
364
365 /* Zero out the VLAN Filter Table Array */
366 ixgb_clear_vfta(hw);
367
368 /* Zero all of the hardware counters */
369 ixgb_clear_hw_cntrs(hw);
370
371 /* Call a subroutine to setup flow control. */
372 status = ixgb_setup_fc(hw);
373
374 /* 82597EX errata: Call check-for-link in case lane deskew is locked */
375 ixgb_check_for_link(hw);
376
377 return (status);
378}
379
380/******************************************************************************
381 * Initializes receive address filters.
382 *
383 * hw - Struct containing variables accessed by shared code
384 *
385 * Places the MAC address in receive address register 0 and clears the rest
386 * of the receive address registers. Clears the multicast table. Assumes
387 * the receiver is in reset when the routine is called.
388 *****************************************************************************/
389void
390ixgb_init_rx_addrs(struct ixgb_hw *hw)
391{
392 uint32_t i;
393
394 DEBUGFUNC("ixgb_init_rx_addrs");;
395
396 /*
397 * If the current mac address is valid, assume it is a software override
398 * to the permanent address.
399 * Otherwise, use the permanent address from the eeprom.
400 */
401 if(!mac_addr_valid(hw->curr_mac_addr)) {
402
403 /* Get the MAC address from the eeprom for later reference */
404 ixgb_get_ee_mac_addr(hw, hw->curr_mac_addr);
405
406 DEBUGOUT3(" Keeping Permanent MAC Addr =%.2X %.2X %.2X ",
407 hw->curr_mac_addr[0], hw->curr_mac_addr[1],
408 hw->curr_mac_addr[2]);
409 DEBUGOUT3("%.2X %.2X %.2X\n", hw->curr_mac_addr[3],
410 hw->curr_mac_addr[4], hw->curr_mac_addr[5]);
411 } else {
412
413 /* Setup the receive address. */
414 DEBUGOUT("Overriding MAC Address in RAR[0]\n");
415 DEBUGOUT3(" New MAC Addr =%.2X %.2X %.2X ",
416 hw->curr_mac_addr[0], hw->curr_mac_addr[1],
417 hw->curr_mac_addr[2]);
418 DEBUGOUT3("%.2X %.2X %.2X\n", hw->curr_mac_addr[3],
419 hw->curr_mac_addr[4], hw->curr_mac_addr[5]);
420
421 ixgb_rar_set(hw, hw->curr_mac_addr, 0);
422 }
423
424 /* Zero out the other 15 receive addresses. */
425 DEBUGOUT("Clearing RAR[1-15]\n");
426 for(i = 1; i < IXGB_RAR_ENTRIES3; i++) {
427 IXGB_WRITE_REG_ARRAY(hw, RA, (i << 1), 0)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->write_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), ((0x00180 + (((i << 1)) << 2))), (0)));
428 IXGB_WRITE_REG_ARRAY(hw, RA, ((i << 1) + 1), 0)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->write_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), ((0x00180 + ((((i << 1) + 1)) << 2))), (0)));
429 }
430
431 return;
432}
433
434/******************************************************************************
435 * Updates the MAC's list of multicast addresses.
436 *
437 * hw - Struct containing variables accessed by shared code
438 * mc_addr_list - the list of new multicast addresses
439 * mc_addr_count - number of addresses
440 * pad - number of bytes between addresses in the list
441 *
442 * The given list replaces any existing list. Clears the last 15 receive
443 * address registers and the multicast table. Uses receive address registers
444 * for the first 15 multicast addresses, and hashes the rest into the
445 * multicast table.
446 *****************************************************************************/
447void
448ixgb_mc_addr_list_update(struct ixgb_hw *hw, uint8_t *mc_addr_list,
449 uint32_t mc_addr_count, uint32_t pad)
450{
451 uint32_t hash_value;
452 uint32_t i;
453 uint32_t rar_used_count = 1; /* RAR[0] is used for our MAC address */
454
455 DEBUGFUNC("ixgb_mc_addr_list_update");;
456
457 /* Set the new number of MC addresses that we are being requested to
458 * use. */
459 hw->num_mc_addrs = mc_addr_count;
460
461 /* Clear RAR[1-15] */
462 DEBUGOUT(" Clearing RAR[1-15]\n");
463 for(i = rar_used_count; i < IXGB_RAR_ENTRIES3; i++) {
464 IXGB_WRITE_REG_ARRAY(hw, RA, (i << 1), 0)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->write_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), ((0x00180 + (((i << 1)) << 2))), (0)));
465 IXGB_WRITE_REG_ARRAY(hw, RA, ((i << 1) + 1), 0)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->write_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), ((0x00180 + ((((i << 1) + 1)) << 2))), (0)));
466 }
467
468 /* Clear the MTA */
469 DEBUGOUT(" Clearing MTA\n");
470 for(i = 0; i < IXGB_MC_TBL_SIZE128; i++) {
471 IXGB_WRITE_REG_ARRAY(hw, MTA, i, 0)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->write_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), ((0x00200 + ((i) << 2))), (0)));
472 }
473
474 /* Add the new addresses */
475 for(i = 0; i < mc_addr_count; i++) {
476 DEBUGOUT(" Adding the multicast addresses:\n");
477 DEBUGOUT7(" MC Addr #%d =%.2X %.2X %.2X %.2X %.2X %.2X\n", i,
478 mc_addr_list[i * (IXGB_ETH_LENGTH_OF_ADDRESS + pad)],
479 mc_addr_list[i * (IXGB_ETH_LENGTH_OF_ADDRESS + pad) + 1],
480 mc_addr_list[i * (IXGB_ETH_LENGTH_OF_ADDRESS + pad) + 2],
481 mc_addr_list[i * (IXGB_ETH_LENGTH_OF_ADDRESS + pad) + 3],
482 mc_addr_list[i * (IXGB_ETH_LENGTH_OF_ADDRESS + pad) + 4],
483 mc_addr_list[i * (IXGB_ETH_LENGTH_OF_ADDRESS + pad) + 5]);
484
485 /* Place this multicast address in the RAR if there is room, *
486 * else put it in the MTA */
487 if(rar_used_count < IXGB_RAR_ENTRIES3) {
488 ixgb_rar_set(hw,
489 mc_addr_list +
490 (i * (IXGB_ETH_LENGTH_OF_ADDRESS6 + pad)),
491 rar_used_count);
492 DEBUGOUT1("Added a multicast address to RAR[%d]\n", i);
493 rar_used_count++;
494 } else {
495 hash_value =
496 ixgb_hash_mc_addr(hw,
497 mc_addr_list +
498 (i *
499 (IXGB_ETH_LENGTH_OF_ADDRESS6 +
500 pad)));
501
502 DEBUGOUT1(" Hash value = 0x%03X\n", hash_value);
503
504 ixgb_mta_set(hw, hash_value);
505 }
506 }
507
508 DEBUGOUT("MC Update Complete\n");
509 return;
510}
511
512/******************************************************************************
513 * Hashes an address to determine its location in the multicast table
514 *
515 * hw - Struct containing variables accessed by shared code
516 * mc_addr - the multicast address to hash
517 *
518 * Returns:
519 * The hash value
520 *****************************************************************************/
521static uint32_t
522ixgb_hash_mc_addr(struct ixgb_hw *hw, uint8_t *mc_addr)
523{
524 uint32_t hash_value = 0;
525
526 DEBUGFUNC("ixgb_hash_mc_addr");;
527
528 /* The portion of the address that is used for the hash table is
529 * determined by the mc_filter_type setting. */
530 switch(hw->mc_filter_type) {
531 /* [0] [1] [2] [3] [4] [5] 01 AA 00 12 34 56 LSB MSB -
532 * According to H/W docs */
533 case 0:
534 /* [47:36] i.e. 0x563 for above example address */
535 hash_value =
536 ((mc_addr[4] >> 4) | (((uint16_t)mc_addr[5]) << 4));
537 break;
538 case 1: /* [46:35] i.e. 0xAC6 for above
539 * example address */
540 hash_value =
541 ((mc_addr[4] >> 3) | (((uint16_t)mc_addr[5]) << 5));
542 break;
543 case 2: /* [45:34] i.e. 0x5D8 for above
544 * example address */
545 hash_value =
546 ((mc_addr[4] >> 2) | (((uint16_t)mc_addr[5]) << 6));
547 break;
548 case 3: /* [43:32] i.e. 0x634 for above
549 * example address */
550 hash_value = ((mc_addr[4]) | (((uint16_t)mc_addr[5]) << 8));
551 break;
552 default:
553 /* Invalid mc_filter_type, what should we do? */
554 DEBUGOUT("MC filter type param set incorrectly\n");
555 ASSERT(0)if(!(0)) panic("IXGB: x");
556 break;
557 }
558
559 hash_value &= 0xFFF;
560 return (hash_value);
561}
562
563/******************************************************************************
564 * Sets the bit in the multicast table corresponding to the hash value.
565 *
566 * hw - Struct containing variables accessed by shared code
567 * hash_value - Multicast address hash value
568 *****************************************************************************/
569static void
570ixgb_mta_set(struct ixgb_hw *hw, uint32_t hash_value)
571{
572 uint32_t hash_bit, hash_reg;
573 uint32_t mta_reg;
574
575 /* The MTA is a register array of 128 32-bit registers. It is treated
576 * like an array of 4096 bits. We want to set bit
577 * BitArray[hash_value]. So we figure out what register the bit is in,
578 * read it, OR in the new bit, then write back the new value. The
579 * register is determined by the upper 7 bits of the hash value and the
580 * bit within that register are determined by the lower 5 bits of the
581 * value. */
582 hash_reg = (hash_value >> 5) & 0x7F;
583 hash_bit = hash_value & 0x1F;
584 mta_reg = IXGB_READ_REG_ARRAY(hw, MTA, hash_reg)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), ((0x00200 + ((hash_reg) << 2)))));
585 mta_reg |= (1 << hash_bit);
586 IXGB_WRITE_REG_ARRAY(hw, MTA, hash_reg, mta_reg)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->write_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), ((0x00200 + ((hash_reg) << 2))), (mta_reg)));
587 return;
588}
589
590/******************************************************************************
591 * Puts an ethernet address into a receive address register.
592 *
593 * hw - Struct containing variables accessed by shared code
594 * addr - Address to put into receive address register
595 * index - Receive address register to write
596 *****************************************************************************/
597void
598ixgb_rar_set(struct ixgb_hw *hw, uint8_t *addr, uint32_t index)
599{
600 uint32_t rar_low, rar_high;
601
602 DEBUGFUNC("ixgb_rar_set");;
603
604 /* HW expects these in little endian so we reverse the byte order from
605 * network order (big endian) to little endian */
606 rar_low = ((uint32_t)addr[0] |
607 ((uint32_t)addr[1] << 8) |
608 ((uint32_t)addr[2] << 16) |
609 ((uint32_t)addr[3] << 24));
610
611 rar_high = ((uint32_t)addr[4] |
612 ((uint32_t)addr[5] << 8) |
613 IXGB_RAH_AV0x80000000);
614
615 IXGB_WRITE_REG_ARRAY(hw, RA, (index << 1), rar_low)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->write_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), ((0x00180 + (((index << 1)) << 2))), (rar_low)
));
616 IXGB_WRITE_REG_ARRAY(hw, RA, ((index << 1) + 1), rar_high)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->write_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), ((0x00180 + ((((index << 1) + 1)) << 2))), (rar_high
)));
617 return;
618}
619
620/******************************************************************************
621 * Writes a value to the specified offset in the VLAN filter table.
622 *
623 * hw - Struct containing variables accessed by shared code
624 * offset - Offset in VLAN filer table to write
625 * value - Value to write into VLAN filter table
626 *****************************************************************************/
627void
628ixgb_write_vfta(struct ixgb_hw *hw, uint32_t offset, uint32_t value)
629{
630 IXGB_WRITE_REG_ARRAY(hw, VFTA, offset, value)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->write_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), ((0x00400 + ((offset) << 2))), (value)));
631 return;
632}
633
634/******************************************************************************
635 * Clears the VLAN filer table
636 *
637 * hw - Struct containing variables accessed by shared code
638 *****************************************************************************/
639void
640ixgb_clear_vfta(struct ixgb_hw *hw)
641{
642 uint32_t offset;
643
644 for(offset = 0; offset < IXGB_VLAN_FILTER_TBL_SIZE128; offset++)
645 IXGB_WRITE_REG_ARRAY(hw, VFTA, offset, 0)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->write_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), ((0x00400 + ((offset) << 2))), (0)));
646 return;
647}
648
649/******************************************************************************
650 * Configures the flow control settings based on SW configuration.
651 *
652 * hw - Struct containing variables accessed by shared code
653 *****************************************************************************/
654
655boolean_t
656ixgb_setup_fc(struct ixgb_hw *hw)
657{
658 uint32_t ctrl_reg;
659 uint32_t pap_reg = 0; /* by default, assume no pause time */
660 boolean_t status = TRUE1;
661
662 DEBUGFUNC("ixgb_setup_fc");;
663
664 /* Get the current control reg 0 settings */
665 ctrl_reg = IXGB_READ_REG(hw, CTRL0)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x00000)));
666
667 /* Clear the Receive Pause Enable and Transmit Pause Enable bits */
668 ctrl_reg &= ~(IXGB_CTRL0_RPE0x08000000 | IXGB_CTRL0_TPE0x10000000);
669
670 /* The possible values of the "flow_control" parameter are:
671 * 0: Flow control is completely disabled
672 * 1: Rx flow control is enabled (we can receive pause frames but not send
673 * pause frames).
674 * 2: Tx flow control is enabled (we can send pause frames but we do not
675 * support receiving pause frames)
676 * 3: Both Rx and TX flow control (symmetric) are enabled.
677 * other: Invalid. */
678 switch(hw->fc.type) {
679 case ixgb_fc_none: /* 0 */
680 /* Set CMDC bit to disable Rx Flow control */
681 ctrl_reg |= (IXGB_CTRL0_CMDC0x00000080);
682 break;
683 case ixgb_fc_rx_pause: /* 1 */
684 /* RX Flow control is enabled, and TX Flow control is disabled. */
685 ctrl_reg |= (IXGB_CTRL0_RPE0x08000000);
686 break;
687 case ixgb_fc_tx_pause: /* 2 */
688 /* TX Flow control is enabled, and RX Flow control is disabled,
689 * by a software over-ride. */
690 ctrl_reg |= (IXGB_CTRL0_TPE0x10000000);
691 pap_reg = hw->fc.pause_time;
692 break;
693 case ixgb_fc_full: /* 3 */
694 /* Flow control (both RX and TX) is enabled by a software
695 * over-ride. */
696 ctrl_reg |= (IXGB_CTRL0_RPE0x08000000 | IXGB_CTRL0_TPE0x10000000);
697 pap_reg = hw->fc.pause_time;
698 break;
699 default:
700 /* We should never get here. The value should be 0-3. */
701 DEBUGOUT("Flow control param set incorrectly\n");
702 ASSERT(0)if(!(0)) panic("IXGB: x");
703 break;
704 }
705
706 /* Write the new settings */
707 IXGB_WRITE_REG(hw, CTRL0, ctrl_reg)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->write_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x00000), (ctrl_reg)));
708
709 if(pap_reg != 0) {
710 IXGB_WRITE_REG(hw, PAP, pap_reg)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->write_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x00640), (pap_reg)));
711 }
712
713 /* Set the flow control receive threshold registers. Normally, these
714 * registers will be set to a default threshold that may be adjusted
715 * later by the driver's runtime code. However, if the ability to
716 * transmit pause frames in not enabled, then these registers will be
717 * set to 0. */
718 if(!(hw->fc.type & ixgb_fc_tx_pause)) {
719 IXGB_WRITE_REG(hw, FCRTL, 0)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->write_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x00108), (0)));
720 IXGB_WRITE_REG(hw, FCRTH, 0)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->write_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x00110), (0)));
721 } else {
722 /* We need to set up the Receive Threshold high and low water
723 * marks as well as (optionally) enabling the transmission of
724 * XON frames. */
725 if(hw->fc.send_xon) {
726 IXGB_WRITE_REG(hw, FCRTL,((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->write_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x00108), ((hw->fc.low_water | 0x80000000))))
727 (hw->fc.low_water | IXGB_FCRTL_XONE))((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->write_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x00108), ((hw->fc.low_water | 0x80000000))));
728 } else {
729 IXGB_WRITE_REG(hw, FCRTL, hw->fc.low_water)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->write_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x00108), (hw->fc.low_water)));
730 }
731 IXGB_WRITE_REG(hw, FCRTH, hw->fc.high_water)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->write_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x00110), (hw->fc.high_water)));
732 }
733 return (status);
734}
735
736/******************************************************************************
737 * Reads a word from a device over the Management Data Interface (MDI) bus.
738 * This interface is used to manage Physical layer devices.
739 *
740 * hw - Struct containing variables accessed by hw code
741 * reg_address - Offset of device register being read.
742 * phy_address - Address of device on MDI.
743 *
744 * Returns: Data word (16 bits) from MDI device.
745 *
746 * The 82597EX has support for several MDI access methods. This routine
747 * uses the new protocol MDI Single Command and Address Operation.
748 * This requires that first an address cycle command is sent, followed by a
749 * read command.
750 *****************************************************************************/
751uint16_t
752ixgb_read_phy_reg(struct ixgb_hw *hw, uint32_t reg_address,
753 uint32_t phy_address, uint32_t device_type)
754{
755 uint32_t i;
756 uint32_t data;
757 uint32_t command = 0;
758
759 ASSERT(reg_address <= IXGB_MAX_PHY_REG_ADDRESS)if(!(reg_address <= 0xFFFF)) panic("IXGB: x");
760 ASSERT(phy_address <= IXGB_MAX_PHY_ADDRESS)if(!(phy_address <= 31)) panic("IXGB: x");
761 ASSERT(device_type <= IXGB_MAX_PHY_DEV_TYPE)if(!(device_type <= 31)) panic("IXGB: x");
762
763 /* Setup and write the address cycle command */
764 command = ((reg_address << IXGB_MSCA_NP_ADDR_SHIFT0) |
765 (device_type << IXGB_MSCA_DEV_TYPE_SHIFT16) |
766 (phy_address << IXGB_MSCA_PHY_ADDR_SHIFT21) |
767 (IXGB_MSCA_ADDR_CYCLE0x00000000 | IXGB_MSCA_MDI_COMMAND0x40000000));
768
769 IXGB_WRITE_REG(hw, MSCA, command)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->write_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x00758), (command)));
770
771 /**************************************************************
772 ** Check every 10 usec to see if the address cycle completed
773 ** The COMMAND bit will clear when the operation is complete.
774 ** This may take as long as 64 usecs (we'll wait 100 usecs max)
775 ** from the CPU Write to the Ready bit assertion.
776 **************************************************************/
777
778 for(i = 0; i < 10; i++) {
779 usec_delay(10)(*delay_func)(10);
780
781 command = IXGB_READ_REG(hw, MSCA)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x00758)));
782
783 if((command & IXGB_MSCA_MDI_COMMAND0x40000000) == 0)
784 break;
785 }
786
787 ASSERT((command & IXGB_MSCA_MDI_COMMAND) == 0)if(!((command & 0x40000000) == 0)) panic("IXGB: x");
788
789 /* Address cycle complete, setup and write the read command */
790 command = ((reg_address << IXGB_MSCA_NP_ADDR_SHIFT0) |
791 (device_type << IXGB_MSCA_DEV_TYPE_SHIFT16) |
792 (phy_address << IXGB_MSCA_PHY_ADDR_SHIFT21) |
793 (IXGB_MSCA_READ0x08000000 | IXGB_MSCA_MDI_COMMAND0x40000000));
794
795 IXGB_WRITE_REG(hw, MSCA, command)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->write_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x00758), (command)));
796
797 /**************************************************************
798 ** Check every 10 usec to see if the read command completed
799 ** The COMMAND bit will clear when the operation is complete.
800 ** The read may take as long as 64 usecs (we'll wait 100 usecs max)
801 ** from the CPU Write to the Ready bit assertion.
802 **************************************************************/
803
804 for(i = 0; i < 10; i++) {
805 usec_delay(10)(*delay_func)(10);
806
807 command = IXGB_READ_REG(hw, MSCA)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x00758)));
808
809 if((command & IXGB_MSCA_MDI_COMMAND0x40000000) == 0)
810 break;
811 }
812
813 ASSERT((command & IXGB_MSCA_MDI_COMMAND) == 0)if(!((command & 0x40000000) == 0)) panic("IXGB: x");
814
815 /* Operation is complete, get the data from the MDIO Read/Write Data
816 * register and return. */
817 data = IXGB_READ_REG(hw, MSRWD)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x00760)));
818 data >>= IXGB_MSRWD_READ_DATA_SHIFT16;
819 return ((uint16_t)data);
820}
821
822/******************************************************************************
823 * Writes a word to a device over the Management Data Interface (MDI) bus.
824 * This interface is used to manage Physical layer devices.
825 *
826 * hw - Struct containing variables accessed by hw code
827 * reg_address - Offset of device register being read.
828 * phy_address - Address of device on MDI.
829 * device_type - Also known as the Device ID or DID.
830 * data - 16-bit value to be written
831 *
832 * Returns: void.
833 *
834 * The 82597EX has support for several MDI access methods. This routine
835 * uses the new protocol MDI Single Command and Address Operation.
836 * This requires that first an address cycle command is sent, followed by a
837 * write command.
838 *****************************************************************************/
839void
840ixgb_write_phy_reg(struct ixgb_hw *hw, uint32_t reg_address,
841 uint32_t phy_address, uint32_t device_type, uint16_t data)
842{
843 uint32_t i;
844 uint32_t command = 0;
845
846 ASSERT(reg_address <= IXGB_MAX_PHY_REG_ADDRESS)if(!(reg_address <= 0xFFFF)) panic("IXGB: x");
847 ASSERT(phy_address <= IXGB_MAX_PHY_ADDRESS)if(!(phy_address <= 31)) panic("IXGB: x");
848 ASSERT(device_type <= IXGB_MAX_PHY_DEV_TYPE)if(!(device_type <= 31)) panic("IXGB: x");
849
850 /* Put the data in the MDIO Read/Write Data register */
851 IXGB_WRITE_REG(hw, MSRWD, (uint32_t)data)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->write_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x00760), ((uint32_t)data)));
852
853 /* Setup and write the address cycle command */
854 command = ((reg_address << IXGB_MSCA_NP_ADDR_SHIFT0) |
855 (device_type << IXGB_MSCA_DEV_TYPE_SHIFT16) |
856 (phy_address << IXGB_MSCA_PHY_ADDR_SHIFT21) |
857 (IXGB_MSCA_ADDR_CYCLE0x00000000 | IXGB_MSCA_MDI_COMMAND0x40000000));
858
859 IXGB_WRITE_REG(hw, MSCA, command)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->write_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x00758), (command)));
860
861 /**************************************************************
862 ** Check every 10 usec to see if the address cycle completed
863 ** The COMMAND bit will clear when the operation is complete.
864 ** This may take as long as 64 usecs (we'll wait 100 usecs max)
865 ** from the CPU Write to the Ready bit assertion.
866 **************************************************************/
867
868 for(i = 0; i < 10; i++) {
869 usec_delay(10)(*delay_func)(10);
870
871 command = IXGB_READ_REG(hw, MSCA)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x00758)));
872
873 if((command & IXGB_MSCA_MDI_COMMAND0x40000000) == 0)
874 break;
875 }
876
877 ASSERT((command & IXGB_MSCA_MDI_COMMAND) == 0)if(!((command & 0x40000000) == 0)) panic("IXGB: x");
878
879 /* Address cycle complete, setup and write the write command */
880 command = ((reg_address << IXGB_MSCA_NP_ADDR_SHIFT0) |
881 (device_type << IXGB_MSCA_DEV_TYPE_SHIFT16) |
882 (phy_address << IXGB_MSCA_PHY_ADDR_SHIFT21) |
883 (IXGB_MSCA_WRITE0x04000000 | IXGB_MSCA_MDI_COMMAND0x40000000));
884
885 IXGB_WRITE_REG(hw, MSCA, command)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->write_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x00758), (command)));
886
887 /**************************************************************
888 ** Check every 10 usec to see if the read command completed
889 ** The COMMAND bit will clear when the operation is complete.
890 ** The write may take as long as 64 usecs (we'll wait 100 usecs max)
891 ** from the CPU Write to the Ready bit assertion.
892 **************************************************************/
893
894 for(i = 0; i < 10; i++) {
895 usec_delay(10)(*delay_func)(10);
896
897 command = IXGB_READ_REG(hw, MSCA)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x00758)));
898
899 if((command & IXGB_MSCA_MDI_COMMAND0x40000000) == 0)
900 break;
901 }
902
903 ASSERT((command & IXGB_MSCA_MDI_COMMAND) == 0)if(!((command & 0x40000000) == 0)) panic("IXGB: x");
904
905 /* Operation is complete, return. */
906}
907
908/******************************************************************************
909 * Checks to see if the link status of the hardware has changed.
910 *
911 * hw - Struct containing variables accessed by hw code
912 *
913 * Called by any function that needs to check the link status of the adapter.
914 *****************************************************************************/
915void
916ixgb_check_for_link(struct ixgb_hw *hw)
917{
918 uint32_t status_reg;
919 uint32_t xpcss_reg;
920
921 DEBUGFUNC("ixgb_check_for_link");;
922
923 xpcss_reg = IXGB_READ_REG(hw, XPCSS)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x00720)));
924 status_reg = IXGB_READ_REG(hw, STATUS)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x00010)));
925
926 if((xpcss_reg & IXGB_XPCSS_ALIGN_STATUS0x00001000) &&
927 (status_reg & IXGB_STATUS_LU0x00000002)) {
928 hw->link_up = TRUE1;
929 } else if(!(xpcss_reg & IXGB_XPCSS_ALIGN_STATUS0x00001000) &&
930 (status_reg & IXGB_STATUS_LU0x00000002)) {
931 DEBUGOUT("XPCSS Not Aligned while Status:LU is set.\n");
932 hw->link_up = ixgb_link_reset(hw);
933 } else {
934 /*
935 * 82597EX errata. Since the lane deskew problem may prevent
936 * link, reset the link before reporting link down.
937 */
938 hw->link_up = ixgb_link_reset(hw);
939 }
940 /* Anything else for 10 Gig?? */
941}
942
943/******************************************************************************
944 * Check for a bad link condition that may have occurred.
945 * The indication is that the RFC / LFC registers may be incrementing
946 * continually. A full adapter reset is required to recover.
947 *
948 * hw - Struct containing variables accessed by hw code
949 *
950 * Called by any function that needs to check the link status of the adapter.
951 *****************************************************************************/
952boolean_t
953ixgb_check_for_bad_link(struct ixgb_hw *hw)
954{
955 uint32_t newLFC, newRFC;
956 boolean_t bad_link_returncode = FALSE0;
957
958 if(hw->phy_type == ixgb_phy_type_txn17401) {
959 newLFC = IXGB_READ_REG(hw, LFC)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x02190)));
960 newRFC = IXGB_READ_REG(hw, RFC)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x02188)));
961 if((hw->lastLFC + 250 < newLFC) || (hw->lastRFC + 250 < newRFC)) {
962 DEBUGOUT("BAD LINK! too many LFC/RFC since last check\n");
963 bad_link_returncode = TRUE1;
964 }
965 hw->lastLFC = newLFC;
966 hw->lastRFC = newRFC;
967 }
968
969 return bad_link_returncode;
970}
971
972/******************************************************************************
973 * Clears all hardware statistics counters.
974 *
975 * hw - Struct containing variables accessed by shared code
976 *****************************************************************************/
977void
978ixgb_clear_hw_cntrs(struct ixgb_hw *hw)
979{
980 volatile uint32_t temp_reg;
981
982 DEBUGFUNC("ixgb_clear_hw_cntrs");;
983
984 /* if we are stopped or resetting exit gracefully */
985 if(hw->adapter_stopped) {
986 DEBUGOUT("Exiting because the adapter is stopped!!!\n");
987 return;
988 }
989
990 temp_reg = IXGB_READ_REG(hw, TPRL)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x02000)));
991 temp_reg = IXGB_READ_REG(hw, TPRH)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x02004)));
992 temp_reg = IXGB_READ_REG(hw, GPRCL)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x02008)));
993 temp_reg = IXGB_READ_REG(hw, GPRCH)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x0200C)));
994 temp_reg = IXGB_READ_REG(hw, BPRCL)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x02010)));
995 temp_reg = IXGB_READ_REG(hw, BPRCH)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x02014)));
996 temp_reg = IXGB_READ_REG(hw, MPRCL)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x02018)));
997 temp_reg = IXGB_READ_REG(hw, MPRCH)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x0201C)));
998 temp_reg = IXGB_READ_REG(hw, UPRCL)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x02020)));
999 temp_reg = IXGB_READ_REG(hw, UPRCH)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x02024)));
1000 temp_reg = IXGB_READ_REG(hw, VPRCL)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x02028)));
1001 temp_reg = IXGB_READ_REG(hw, VPRCH)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x0202C)));
1002 temp_reg = IXGB_READ_REG(hw, JPRCL)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x02030)));
1003 temp_reg = IXGB_READ_REG(hw, JPRCH)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x02034)));
1004 temp_reg = IXGB_READ_REG(hw, GORCL)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x02038)));
1005 temp_reg = IXGB_READ_REG(hw, GORCH)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x0203C)));
1006 temp_reg = IXGB_READ_REG(hw, TORL)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x02040)));
1007 temp_reg = IXGB_READ_REG(hw, TORH)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x02044)));
1008 temp_reg = IXGB_READ_REG(hw, RNBC)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x02048)));
1009 temp_reg = IXGB_READ_REG(hw, RUC)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x02050)));
1010 temp_reg = IXGB_READ_REG(hw, ROC)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x02058)));
1011 temp_reg = IXGB_READ_REG(hw, RLEC)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x02060)));
1012 temp_reg = IXGB_READ_REG(hw, CRCERRS)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x02068)));
1013 temp_reg = IXGB_READ_REG(hw, ICBC)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x02070)));
1014 temp_reg = IXGB_READ_REG(hw, ECBC)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x02078)));
1015 temp_reg = IXGB_READ_REG(hw, MPC)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x02080)));
1016 temp_reg = IXGB_READ_REG(hw, TPTL)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x02100)));
1017 temp_reg = IXGB_READ_REG(hw, TPTH)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x02104)));
1018 temp_reg = IXGB_READ_REG(hw, GPTCL)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x02108)));
1019 temp_reg = IXGB_READ_REG(hw, GPTCH)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x0210C)));
1020 temp_reg = IXGB_READ_REG(hw, BPTCL)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x02110)));
1021 temp_reg = IXGB_READ_REG(hw, BPTCH)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x02114)));
1022 temp_reg = IXGB_READ_REG(hw, MPTCL)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x02118)));
1023 temp_reg = IXGB_READ_REG(hw, MPTCH)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x0211C)));
1024 temp_reg = IXGB_READ_REG(hw, UPTCL)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x02120)));
1025 temp_reg = IXGB_READ_REG(hw, UPTCH)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x02124)));
1026 temp_reg = IXGB_READ_REG(hw, VPTCL)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x02128)));
1027 temp_reg = IXGB_READ_REG(hw, VPTCH)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x0212C)));
1028 temp_reg = IXGB_READ_REG(hw, JPTCL)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x02130)));
1029 temp_reg = IXGB_READ_REG(hw, JPTCH)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x02134)));
1030 temp_reg = IXGB_READ_REG(hw, GOTCL)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x02138)));
1031 temp_reg = IXGB_READ_REG(hw, GOTCH)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x0213C)));
1032 temp_reg = IXGB_READ_REG(hw, TOTL)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x02140)));
1033 temp_reg = IXGB_READ_REG(hw, TOTH)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x02144)));
1034 temp_reg = IXGB_READ_REG(hw, DC)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x02148)));
1035 temp_reg = IXGB_READ_REG(hw, PLT64C)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x02150)));
1036 temp_reg = IXGB_READ_REG(hw, TSCTC)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x02170)));
1037 temp_reg = IXGB_READ_REG(hw, TSCTFC)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x02178)));
1038 temp_reg = IXGB_READ_REG(hw, IBIC)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x02180)));
1039 temp_reg = IXGB_READ_REG(hw, RFC)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x02188)));
1040 temp_reg = IXGB_READ_REG(hw, LFC)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x02190)));
1041 temp_reg = IXGB_READ_REG(hw, PFRC)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x02198)));
1042 temp_reg = IXGB_READ_REG(hw, PFTC)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x021A0)));
1043 temp_reg = IXGB_READ_REG(hw, MCFRC)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x021A8)));
1044 temp_reg = IXGB_READ_REG(hw, MCFTC)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x021B0)));
1045 temp_reg = IXGB_READ_REG(hw, XONRXC)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x021B8)));
1046 temp_reg = IXGB_READ_REG(hw, XONTXC)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x021C0)));
1047 temp_reg = IXGB_READ_REG(hw, XOFFRXC)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x021C8)));
1048 temp_reg = IXGB_READ_REG(hw, XOFFTXC)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x021D0)));
1049 temp_reg = IXGB_READ_REG(hw, RJC)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x021D8)));
1050 return;
1051}
1052
1053/******************************************************************************
1054 * Turns on the software controllable LED
1055 *
1056 * hw - Struct containing variables accessed by shared code
1057 *****************************************************************************/
1058void
1059ixgb_led_on(struct ixgb_hw *hw)
1060{
1061 uint32_t ctrl0_reg = IXGB_READ_REG(hw, CTRL0)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x00000)));
1062
1063 /* To turn on the LED, clear software-definable pin 0 (SDP0). */
1064 ctrl0_reg &= ~IXGB_CTRL0_SDP00x00040000;
1065 IXGB_WRITE_REG(hw, CTRL0, ctrl0_reg)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->write_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x00000), (ctrl0_reg)));
1066 return;
1067}
1068
1069/******************************************************************************
1070 * Turns off the software controllable LED
1071 *
1072 * hw - Struct containing variables accessed by shared code
1073 *****************************************************************************/
1074void
1075ixgb_led_off(struct ixgb_hw *hw)
1076{
1077 uint32_t ctrl0_reg = IXGB_READ_REG(hw, CTRL0)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x00000)));
1078
1079 /* To turn off the LED, set software-definable pin 0 (SDP0). */
1080 ctrl0_reg |= IXGB_CTRL0_SDP00x00040000;
1081 IXGB_WRITE_REG(hw, CTRL0, ctrl0_reg)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->write_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x00000), (ctrl0_reg)));
1082 return;
1083}
1084
1085/******************************************************************************
1086 * Gets the current PCI bus type, speed, and width of the hardware
1087 *
1088 * hw - Struct containing variables accessed by shared code
1089 *****************************************************************************/
1090static void
1091ixgb_get_bus_info(struct ixgb_hw *hw)
1092{
1093 uint32_t status_reg;
1094
1095 status_reg = IXGB_READ_REG(hw, STATUS)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x00010)));
1096
1097 hw->bus.type =
1098 (status_reg & IXGB_STATUS_PCIX_MODE0x00002000) ? ixgb_bus_type_pcix :
1099 ixgb_bus_type_pci;
1100
1101 if(hw->bus.type == ixgb_bus_type_pci) {
1102 hw->bus.speed =
1103 (status_reg & IXGB_STATUS_PCI_SPD0x00000800) ? ixgb_bus_speed_66 :
1104 ixgb_bus_speed_33;
1105 } else {
1106 switch(status_reg & IXGB_STATUS_PCIX_SPD_MASK0x0000C000) {
1107 case IXGB_STATUS_PCIX_SPD_660x00000000:
1108 hw->bus.speed = ixgb_bus_speed_66;
1109 break;
1110 case IXGB_STATUS_PCIX_SPD_1000x00004000:
1111 hw->bus.speed = ixgb_bus_speed_100;
1112 break;
1113 case IXGB_STATUS_PCIX_SPD_1330x00008000:
1114 hw->bus.speed = ixgb_bus_speed_133;
1115 break;
1116 default:
1117 hw->bus.speed = ixgb_bus_speed_reserved;
1118 break;
1119 }
1120 }
1121
1122 hw->bus.width =
1123 (status_reg & IXGB_STATUS_BUS640x00001000) ? ixgb_bus_width_64 :
1124 ixgb_bus_width_32;
1125
1126 return;
1127}
1128
1129/******************************************************************************
1130 * Tests a MAC address to ensure it is a valid Individual Address
1131 *
1132 * mac_addr - pointer to MAC address.
1133 *
1134 *****************************************************************************/
1135boolean_t
1136mac_addr_valid(uint8_t *mac_addr)
1137{
1138 boolean_t is_valid = TRUE1;
1139
1140 DEBUGFUNC("mac_addr_valid");;
1141
1142 /* Make sure it is not a multicast address */
1143 if(IS_MULTICAST(mac_addr)(boolean_t)(((uint8_t *)(mac_addr))[0] & ((uint8_t)0x01))) {
1144 DEBUGOUT("MAC address is multicast\n");
1145 is_valid = FALSE0;
1146 }
1147 /* Not a broadcast address */
1148 else if(IS_BROADCAST(mac_addr)((((uint8_t *)(mac_addr))[0] == ((uint8_t)0xff)) && (
((uint8_t *)(mac_addr))[1] == ((uint8_t)0xff)))) {
1149 DEBUGOUT("MAC address is broadcast\n");
1150 is_valid = FALSE0;
1151 }
1152 /* Reject the zero address */
1153 else if (mac_addr[0] == 0 &&
1154 mac_addr[1] == 0 &&
1155 mac_addr[2] == 0 &&
1156 mac_addr[3] == 0 &&
1157 mac_addr[4] == 0 &&
1158 mac_addr[5] == 0) {
1159 DEBUGOUT("MAC address is all zeros\n");
1160 is_valid = FALSE0;
1161 }
1162 return (is_valid);
1163}
1164
1165/******************************************************************************
1166 * Resets the 10GbE link. Waits the settle time and returns the state of
1167 * the link.
1168 *
1169 * hw - Struct containing variables accessed by shared code
1170 *****************************************************************************/
1171boolean_t
1172ixgb_link_reset(struct ixgb_hw *hw)
1173{
1174 boolean_t link_status = FALSE0;
1175 uint8_t wait_retries = MAX_RESET_ITERATIONS8;
1176 uint8_t lrst_retries = MAX_RESET_ITERATIONS8;
1177
1178 do {
1179 /* Reset the link */
1180 IXGB_WRITE_REG(hw, CTRL0,((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->write_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x00000), (((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag
)->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x00000))) | 0x00000008)))
1181 IXGB_READ_REG(hw, CTRL0) | IXGB_CTRL0_LRST)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->write_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x00000), (((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag
)->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x00000))) | 0x00000008)));
1182
1183 /* Wait for link-up and lane re-alignment */
1184 do {
1185 usec_delay(IXGB_DELAY_USECS_AFTER_LINK_RESET)(*delay_func)(13);
1186 link_status =
1187 ((IXGB_READ_REG(hw, STATUS)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x00010))) & IXGB_STATUS_LU0x00000002) &&
1188 (IXGB_READ_REG(hw, XPCSS)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x00720))) &
1189 IXGB_XPCSS_ALIGN_STATUS0x00001000)) ? TRUE1 : FALSE0;
1190 } while(!link_status && --wait_retries);
1191
1192 } while(!link_status && --lrst_retries);
1193
1194 return link_status;
1195}
1196
1197/******************************************************************************
1198 * Resets the 10GbE optics module.
1199 *
1200 * hw - Struct containing variables accessed by shared code
1201 *****************************************************************************/
1202void
1203ixgb_optics_reset(struct ixgb_hw *hw)
1204{
1205 if(hw->phy_type == ixgb_phy_type_txn17401) {
1206 uint16_t mdio_reg;
1207
1208 ixgb_write_phy_reg(hw,
1209 MDIO_PMA_PMD_CR10x0000,
1210 IXGB_PHY_ADDRESS0x0,
1211 MDIO_PMA_PMD_DID0x01,
1212 MDIO_PMA_PMD_CR1_RESET0x8000);
1213
1214 mdio_reg = ixgb_read_phy_reg(hw,
Value stored to 'mdio_reg' is never read
1215 MDIO_PMA_PMD_CR10x0000,
1216 IXGB_PHY_ADDRESS0x0,
1217 MDIO_PMA_PMD_DID0x01);
1218 }
1219
1220 return;
1221}
1222
1223/******************************************************************************
1224 * Resets the 10GbE optics module for Sun variant NIC.
1225 *
1226 * hw - Struct containing variables accessed by shared code
1227 *****************************************************************************/
1228
1229#define IXGB_BCM8704_USER_PMD_TX_CTRL_REG0xC803 0xC803
1230#define IXGB_BCM8704_USER_PMD_TX_CTRL_REG_VAL0x0164 0x0164
1231#define IXGB_BCM8704_USER_CTRL_REG0xC800 0xC800
1232#define IXGB_BCM8704_USER_CTRL_REG_VAL0x7FBF 0x7FBF
1233#define IXGB_BCM8704_USER_DEV3_ADDR0x0003 0x0003
1234#define IXGB_SUN_PHY_ADDRESS0x0000 0x0000
1235#define IXGB_SUN_PHY_RESET_DELAY305 305
1236
1237static void
1238ixgb_optics_reset_bcm(struct ixgb_hw *hw)
1239{
1240 uint32_t ctrl = IXGB_READ_REG(hw, CTRL0)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->read_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x00000)));
1241 ctrl &= ~IXGB_CTRL0_SDP20x00100000;
1242 ctrl |= IXGB_CTRL0_SDP30x00200000;
1243 IXGB_WRITE_REG(hw, CTRL0, ctrl)((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_tag)
->write_4((((struct ixgb_osdep *)(hw)->back)->mem_bus_space_handle
), (0x00000), (ctrl)));
1244
1245 /* SerDes needs extra delay */
1246 msec_delay(IXGB_SUN_PHY_RESET_DELAY)(*delay_func)(1000*(305));
1247
1248 /* Broadcom 7408L configuration */
1249 /* Reference clock config */
1250 ixgb_write_phy_reg(hw,
1251 IXGB_BCM8704_USER_PMD_TX_CTRL_REG0xC803,
1252 IXGB_SUN_PHY_ADDRESS0x0000,
1253 IXGB_BCM8704_USER_DEV3_ADDR0x0003,
1254 IXGB_BCM8704_USER_PMD_TX_CTRL_REG_VAL0x0164);
1255 /* we must read the registers twice */
1256 ixgb_read_phy_reg(hw,
1257 IXGB_BCM8704_USER_PMD_TX_CTRL_REG0xC803,
1258 IXGB_SUN_PHY_ADDRESS0x0000,
1259 IXGB_BCM8704_USER_DEV3_ADDR0x0003);
1260 ixgb_read_phy_reg(hw,
1261 IXGB_BCM8704_USER_PMD_TX_CTRL_REG0xC803,
1262 IXGB_SUN_PHY_ADDRESS0x0000,
1263 IXGB_BCM8704_USER_DEV3_ADDR0x0003);
1264
1265 ixgb_write_phy_reg(hw,
1266 IXGB_BCM8704_USER_CTRL_REG0xC800,
1267 IXGB_SUN_PHY_ADDRESS0x0000,
1268 IXGB_BCM8704_USER_DEV3_ADDR0x0003,
1269 IXGB_BCM8704_USER_CTRL_REG_VAL0x7FBF);
1270 ixgb_read_phy_reg(hw,
1271 IXGB_BCM8704_USER_CTRL_REG0xC800,
1272 IXGB_SUN_PHY_ADDRESS0x0000,
1273 IXGB_BCM8704_USER_DEV3_ADDR0x0003);
1274 ixgb_read_phy_reg(hw,
1275 IXGB_BCM8704_USER_CTRL_REG0xC800,
1276 IXGB_SUN_PHY_ADDRESS0x0000,
1277 IXGB_BCM8704_USER_DEV3_ADDR0x0003);
1278
1279 /* SerDes needs extra delay */
1280 msec_delay(IXGB_SUN_PHY_RESET_DELAY)(*delay_func)(1000*(305));
1281
1282 return;
1283}