2 * SPDX-License-Identifier: BSD-2-Clause
4 * Copyright (c) 2016 Matthew Macy <mmacy@mattmacy.io>
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
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.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 #include <machine/_inttypes.h>
34 #define em_mac_min e1000_82547
35 #define igb_mac_min e1000_82575
37 /*********************************************************************
39 *********************************************************************/
40 char em_driver_version[] = "7.6.1-k";
42 /*********************************************************************
45 * Used by probe to select devices to load on
46 * Last field stores an index into e1000_strings
47 * Last entry must be all 0s
49 * { Vendor ID, Device ID, SubVendor ID, SubDevice ID, String Index }
50 *********************************************************************/
52 static pci_vendor_info_t em_vendor_info_array[] =
54 /* Intel(R) PRO/1000 Network Connection - Legacy em*/
55 PVID(0x8086, E1000_DEV_ID_82540EM, "Intel(R) PRO/1000 Network Connection"),
56 PVID(0x8086, E1000_DEV_ID_82540EM_LOM, "Intel(R) PRO/1000 Network Connection"),
57 PVID(0x8086, E1000_DEV_ID_82540EP, "Intel(R) PRO/1000 Network Connection"),
58 PVID(0x8086, E1000_DEV_ID_82540EP_LOM, "Intel(R) PRO/1000 Network Connection"),
59 PVID(0x8086, E1000_DEV_ID_82540EP_LP, "Intel(R) PRO/1000 Network Connection"),
61 PVID(0x8086, E1000_DEV_ID_82541EI, "Intel(R) PRO/1000 Network Connection"),
62 PVID(0x8086, E1000_DEV_ID_82541ER, "Intel(R) PRO/1000 Network Connection"),
63 PVID(0x8086, E1000_DEV_ID_82541ER_LOM, "Intel(R) PRO/1000 Network Connection"),
64 PVID(0x8086, E1000_DEV_ID_82541EI_MOBILE, "Intel(R) PRO/1000 Network Connection"),
65 PVID(0x8086, E1000_DEV_ID_82541GI, "Intel(R) PRO/1000 Network Connection"),
66 PVID(0x8086, E1000_DEV_ID_82541GI_LF, "Intel(R) PRO/1000 Network Connection"),
67 PVID(0x8086, E1000_DEV_ID_82541GI_MOBILE, "Intel(R) PRO/1000 Network Connection"),
69 PVID(0x8086, E1000_DEV_ID_82542, "Intel(R) PRO/1000 Network Connection"),
71 PVID(0x8086, E1000_DEV_ID_82543GC_FIBER, "Intel(R) PRO/1000 Network Connection"),
72 PVID(0x8086, E1000_DEV_ID_82543GC_COPPER, "Intel(R) PRO/1000 Network Connection"),
74 PVID(0x8086, E1000_DEV_ID_82544EI_COPPER, "Intel(R) PRO/1000 Network Connection"),
75 PVID(0x8086, E1000_DEV_ID_82544EI_FIBER, "Intel(R) PRO/1000 Network Connection"),
76 PVID(0x8086, E1000_DEV_ID_82544GC_COPPER, "Intel(R) PRO/1000 Network Connection"),
77 PVID(0x8086, E1000_DEV_ID_82544GC_LOM, "Intel(R) PRO/1000 Network Connection"),
79 PVID(0x8086, E1000_DEV_ID_82545EM_COPPER, "Intel(R) PRO/1000 Network Connection"),
80 PVID(0x8086, E1000_DEV_ID_82545EM_FIBER, "Intel(R) PRO/1000 Network Connection"),
81 PVID(0x8086, E1000_DEV_ID_82545GM_COPPER, "Intel(R) PRO/1000 Network Connection"),
82 PVID(0x8086, E1000_DEV_ID_82545GM_FIBER, "Intel(R) PRO/1000 Network Connection"),
83 PVID(0x8086, E1000_DEV_ID_82545GM_SERDES, "Intel(R) PRO/1000 Network Connection"),
85 PVID(0x8086, E1000_DEV_ID_82546EB_COPPER, "Intel(R) PRO/1000 Network Connection"),
86 PVID(0x8086, E1000_DEV_ID_82546EB_FIBER, "Intel(R) PRO/1000 Network Connection"),
87 PVID(0x8086, E1000_DEV_ID_82546EB_QUAD_COPPER, "Intel(R) PRO/1000 Network Connection"),
88 PVID(0x8086, E1000_DEV_ID_82546GB_COPPER, "Intel(R) PRO/1000 Network Connection"),
89 PVID(0x8086, E1000_DEV_ID_82546GB_FIBER, "Intel(R) PRO/1000 Network Connection"),
90 PVID(0x8086, E1000_DEV_ID_82546GB_SERDES, "Intel(R) PRO/1000 Network Connection"),
91 PVID(0x8086, E1000_DEV_ID_82546GB_PCIE, "Intel(R) PRO/1000 Network Connection"),
92 PVID(0x8086, E1000_DEV_ID_82546GB_QUAD_COPPER, "Intel(R) PRO/1000 Network Connection"),
93 PVID(0x8086, E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3, "Intel(R) PRO/1000 Network Connection"),
95 PVID(0x8086, E1000_DEV_ID_82547EI, "Intel(R) PRO/1000 Network Connection"),
96 PVID(0x8086, E1000_DEV_ID_82547EI_MOBILE, "Intel(R) PRO/1000 Network Connection"),
97 PVID(0x8086, E1000_DEV_ID_82547GI, "Intel(R) PRO/1000 Network Connection"),
99 /* Intel(R) PRO/1000 Network Connection - em */
100 PVID(0x8086, E1000_DEV_ID_82571EB_COPPER, "Intel(R) PRO/1000 Network Connection"),
101 PVID(0x8086, E1000_DEV_ID_82571EB_FIBER, "Intel(R) PRO/1000 Network Connection"),
102 PVID(0x8086, E1000_DEV_ID_82571EB_SERDES, "Intel(R) PRO/1000 Network Connection"),
103 PVID(0x8086, E1000_DEV_ID_82571EB_SERDES_DUAL, "Intel(R) PRO/1000 Network Connection"),
104 PVID(0x8086, E1000_DEV_ID_82571EB_SERDES_QUAD, "Intel(R) PRO/1000 Network Connection"),
105 PVID(0x8086, E1000_DEV_ID_82571EB_QUAD_COPPER, "Intel(R) PRO/1000 Network Connection"),
106 PVID(0x8086, E1000_DEV_ID_82571EB_QUAD_COPPER_LP, "Intel(R) PRO/1000 Network Connection"),
107 PVID(0x8086, E1000_DEV_ID_82571EB_QUAD_FIBER, "Intel(R) PRO/1000 Network Connection"),
108 PVID(0x8086, E1000_DEV_ID_82571PT_QUAD_COPPER, "Intel(R) PRO/1000 Network Connection"),
109 PVID(0x8086, E1000_DEV_ID_82572EI, "Intel(R) PRO/1000 Network Connection"),
110 PVID(0x8086, E1000_DEV_ID_82572EI_COPPER, "Intel(R) PRO/1000 Network Connection"),
111 PVID(0x8086, E1000_DEV_ID_82572EI_FIBER, "Intel(R) PRO/1000 Network Connection"),
112 PVID(0x8086, E1000_DEV_ID_82572EI_SERDES, "Intel(R) PRO/1000 Network Connection"),
113 PVID(0x8086, E1000_DEV_ID_82573E, "Intel(R) PRO/1000 Network Connection"),
114 PVID(0x8086, E1000_DEV_ID_82573E_IAMT, "Intel(R) PRO/1000 Network Connection"),
115 PVID(0x8086, E1000_DEV_ID_82573L, "Intel(R) PRO/1000 Network Connection"),
116 PVID(0x8086, E1000_DEV_ID_82583V, "Intel(R) PRO/1000 Network Connection"),
117 PVID(0x8086, E1000_DEV_ID_80003ES2LAN_COPPER_SPT, "Intel(R) PRO/1000 Network Connection"),
118 PVID(0x8086, E1000_DEV_ID_80003ES2LAN_SERDES_SPT, "Intel(R) PRO/1000 Network Connection"),
119 PVID(0x8086, E1000_DEV_ID_80003ES2LAN_COPPER_DPT, "Intel(R) PRO/1000 Network Connection"),
120 PVID(0x8086, E1000_DEV_ID_80003ES2LAN_SERDES_DPT, "Intel(R) PRO/1000 Network Connection"),
121 PVID(0x8086, E1000_DEV_ID_ICH8_IGP_M_AMT, "Intel(R) PRO/1000 Network Connection"),
122 PVID(0x8086, E1000_DEV_ID_ICH8_IGP_AMT, "Intel(R) PRO/1000 Network Connection"),
123 PVID(0x8086, E1000_DEV_ID_ICH8_IGP_C, "Intel(R) PRO/1000 Network Connection"),
124 PVID(0x8086, E1000_DEV_ID_ICH8_IFE, "Intel(R) PRO/1000 Network Connection"),
125 PVID(0x8086, E1000_DEV_ID_ICH8_IFE_GT, "Intel(R) PRO/1000 Network Connection"),
126 PVID(0x8086, E1000_DEV_ID_ICH8_IFE_G, "Intel(R) PRO/1000 Network Connection"),
127 PVID(0x8086, E1000_DEV_ID_ICH8_IGP_M, "Intel(R) PRO/1000 Network Connection"),
128 PVID(0x8086, E1000_DEV_ID_ICH8_82567V_3, "Intel(R) PRO/1000 Network Connection"),
129 PVID(0x8086, E1000_DEV_ID_ICH9_IGP_M_AMT, "Intel(R) PRO/1000 Network Connection"),
130 PVID(0x8086, E1000_DEV_ID_ICH9_IGP_AMT, "Intel(R) PRO/1000 Network Connection"),
131 PVID(0x8086, E1000_DEV_ID_ICH9_IGP_C, "Intel(R) PRO/1000 Network Connection"),
132 PVID(0x8086, E1000_DEV_ID_ICH9_IGP_M, "Intel(R) PRO/1000 Network Connection"),
133 PVID(0x8086, E1000_DEV_ID_ICH9_IGP_M_V, "Intel(R) PRO/1000 Network Connection"),
134 PVID(0x8086, E1000_DEV_ID_ICH9_IFE, "Intel(R) PRO/1000 Network Connection"),
135 PVID(0x8086, E1000_DEV_ID_ICH9_IFE_GT, "Intel(R) PRO/1000 Network Connection"),
136 PVID(0x8086, E1000_DEV_ID_ICH9_IFE_G, "Intel(R) PRO/1000 Network Connection"),
137 PVID(0x8086, E1000_DEV_ID_ICH9_BM, "Intel(R) PRO/1000 Network Connection"),
138 PVID(0x8086, E1000_DEV_ID_82574L, "Intel(R) PRO/1000 Network Connection"),
139 PVID(0x8086, E1000_DEV_ID_82574LA, "Intel(R) PRO/1000 Network Connection"),
140 PVID(0x8086, E1000_DEV_ID_ICH10_R_BM_LM, "Intel(R) PRO/1000 Network Connection"),
141 PVID(0x8086, E1000_DEV_ID_ICH10_R_BM_LF, "Intel(R) PRO/1000 Network Connection"),
142 PVID(0x8086, E1000_DEV_ID_ICH10_R_BM_V, "Intel(R) PRO/1000 Network Connection"),
143 PVID(0x8086, E1000_DEV_ID_ICH10_D_BM_LM, "Intel(R) PRO/1000 Network Connection"),
144 PVID(0x8086, E1000_DEV_ID_ICH10_D_BM_LF, "Intel(R) PRO/1000 Network Connection"),
145 PVID(0x8086, E1000_DEV_ID_ICH10_D_BM_V, "Intel(R) PRO/1000 Network Connection"),
146 PVID(0x8086, E1000_DEV_ID_PCH_M_HV_LM, "Intel(R) PRO/1000 Network Connection"),
147 PVID(0x8086, E1000_DEV_ID_PCH_M_HV_LC, "Intel(R) PRO/1000 Network Connection"),
148 PVID(0x8086, E1000_DEV_ID_PCH_D_HV_DM, "Intel(R) PRO/1000 Network Connection"),
149 PVID(0x8086, E1000_DEV_ID_PCH_D_HV_DC, "Intel(R) PRO/1000 Network Connection"),
150 PVID(0x8086, E1000_DEV_ID_PCH2_LV_LM, "Intel(R) PRO/1000 Network Connection"),
151 PVID(0x8086, E1000_DEV_ID_PCH2_LV_V, "Intel(R) PRO/1000 Network Connection"),
152 PVID(0x8086, E1000_DEV_ID_PCH_LPT_I217_LM, "Intel(R) PRO/1000 Network Connection"),
153 PVID(0x8086, E1000_DEV_ID_PCH_LPT_I217_V, "Intel(R) PRO/1000 Network Connection"),
154 PVID(0x8086, E1000_DEV_ID_PCH_LPTLP_I218_LM, "Intel(R) PRO/1000 Network Connection"),
155 PVID(0x8086, E1000_DEV_ID_PCH_LPTLP_I218_V, "Intel(R) PRO/1000 Network Connection"),
156 PVID(0x8086, E1000_DEV_ID_PCH_I218_LM2, "Intel(R) PRO/1000 Network Connection"),
157 PVID(0x8086, E1000_DEV_ID_PCH_I218_V2, "Intel(R) PRO/1000 Network Connection"),
158 PVID(0x8086, E1000_DEV_ID_PCH_I218_LM3, "Intel(R) PRO/1000 Network Connection"),
159 PVID(0x8086, E1000_DEV_ID_PCH_I218_V3, "Intel(R) PRO/1000 Network Connection"),
160 PVID(0x8086, E1000_DEV_ID_PCH_SPT_I219_LM, "Intel(R) PRO/1000 Network Connection"),
161 PVID(0x8086, E1000_DEV_ID_PCH_SPT_I219_V, "Intel(R) PRO/1000 Network Connection"),
162 PVID(0x8086, E1000_DEV_ID_PCH_SPT_I219_LM2, "Intel(R) PRO/1000 Network Connection"),
163 PVID(0x8086, E1000_DEV_ID_PCH_SPT_I219_V2, "Intel(R) PRO/1000 Network Connection"),
164 PVID(0x8086, E1000_DEV_ID_PCH_LBG_I219_LM3, "Intel(R) PRO/1000 Network Connection"),
165 PVID(0x8086, E1000_DEV_ID_PCH_SPT_I219_LM4, "Intel(R) PRO/1000 Network Connection"),
166 PVID(0x8086, E1000_DEV_ID_PCH_SPT_I219_V4, "Intel(R) PRO/1000 Network Connection"),
167 PVID(0x8086, E1000_DEV_ID_PCH_SPT_I219_LM5, "Intel(R) PRO/1000 Network Connection"),
168 PVID(0x8086, E1000_DEV_ID_PCH_SPT_I219_V5, "Intel(R) PRO/1000 Network Connection"),
169 PVID(0x8086, E1000_DEV_ID_PCH_CNP_I219_LM6, "Intel(R) PRO/1000 Network Connection"),
170 PVID(0x8086, E1000_DEV_ID_PCH_CNP_I219_V6, "Intel(R) PRO/1000 Network Connection"),
171 PVID(0x8086, E1000_DEV_ID_PCH_CNP_I219_LM7, "Intel(R) PRO/1000 Network Connection"),
172 PVID(0x8086, E1000_DEV_ID_PCH_CNP_I219_V7, "Intel(R) PRO/1000 Network Connection"),
173 PVID(0x8086, E1000_DEV_ID_PCH_ICP_I219_LM8, "Intel(R) PRO/1000 Network Connection"),
174 PVID(0x8086, E1000_DEV_ID_PCH_ICP_I219_V8, "Intel(R) PRO/1000 Network Connection"),
175 PVID(0x8086, E1000_DEV_ID_PCH_ICP_I219_LM9, "Intel(R) PRO/1000 Network Connection"),
176 PVID(0x8086, E1000_DEV_ID_PCH_ICP_I219_V9, "Intel(R) PRO/1000 Network Connection"),
177 /* required last entry */
181 static pci_vendor_info_t igb_vendor_info_array[] =
183 /* Intel(R) PRO/1000 Network Connection - igb */
184 PVID(0x8086, E1000_DEV_ID_82575EB_COPPER, "Intel(R) PRO/1000 PCI-Express Network Driver"),
185 PVID(0x8086, E1000_DEV_ID_82575EB_FIBER_SERDES, "Intel(R) PRO/1000 PCI-Express Network Driver"),
186 PVID(0x8086, E1000_DEV_ID_82575GB_QUAD_COPPER, "Intel(R) PRO/1000 PCI-Express Network Driver"),
187 PVID(0x8086, E1000_DEV_ID_82576, "Intel(R) PRO/1000 PCI-Express Network Driver"),
188 PVID(0x8086, E1000_DEV_ID_82576_NS, "Intel(R) PRO/1000 PCI-Express Network Driver"),
189 PVID(0x8086, E1000_DEV_ID_82576_NS_SERDES, "Intel(R) PRO/1000 PCI-Express Network Driver"),
190 PVID(0x8086, E1000_DEV_ID_82576_FIBER, "Intel(R) PRO/1000 PCI-Express Network Driver"),
191 PVID(0x8086, E1000_DEV_ID_82576_SERDES, "Intel(R) PRO/1000 PCI-Express Network Driver"),
192 PVID(0x8086, E1000_DEV_ID_82576_SERDES_QUAD, "Intel(R) PRO/1000 PCI-Express Network Driver"),
193 PVID(0x8086, E1000_DEV_ID_82576_QUAD_COPPER, "Intel(R) PRO/1000 PCI-Express Network Driver"),
194 PVID(0x8086, E1000_DEV_ID_82576_QUAD_COPPER_ET2, "Intel(R) PRO/1000 PCI-Express Network Driver"),
195 PVID(0x8086, E1000_DEV_ID_82576_VF, "Intel(R) PRO/1000 PCI-Express Network Driver"),
196 PVID(0x8086, E1000_DEV_ID_82580_COPPER, "Intel(R) PRO/1000 PCI-Express Network Driver"),
197 PVID(0x8086, E1000_DEV_ID_82580_FIBER, "Intel(R) PRO/1000 PCI-Express Network Driver"),
198 PVID(0x8086, E1000_DEV_ID_82580_SERDES, "Intel(R) PRO/1000 PCI-Express Network Driver"),
199 PVID(0x8086, E1000_DEV_ID_82580_SGMII, "Intel(R) PRO/1000 PCI-Express Network Driver"),
200 PVID(0x8086, E1000_DEV_ID_82580_COPPER_DUAL, "Intel(R) PRO/1000 PCI-Express Network Driver"),
201 PVID(0x8086, E1000_DEV_ID_82580_QUAD_FIBER, "Intel(R) PRO/1000 PCI-Express Network Driver"),
202 PVID(0x8086, E1000_DEV_ID_DH89XXCC_SERDES, "Intel(R) PRO/1000 PCI-Express Network Driver"),
203 PVID(0x8086, E1000_DEV_ID_DH89XXCC_SGMII, "Intel(R) PRO/1000 PCI-Express Network Driver"),
204 PVID(0x8086, E1000_DEV_ID_DH89XXCC_SFP, "Intel(R) PRO/1000 PCI-Express Network Driver"),
205 PVID(0x8086, E1000_DEV_ID_DH89XXCC_BACKPLANE, "Intel(R) PRO/1000 PCI-Express Network Driver"),
206 PVID(0x8086, E1000_DEV_ID_I350_COPPER, "Intel(R) PRO/1000 PCI-Express Network Driver"),
207 PVID(0x8086, E1000_DEV_ID_I350_FIBER, "Intel(R) PRO/1000 PCI-Express Network Driver"),
208 PVID(0x8086, E1000_DEV_ID_I350_SERDES, "Intel(R) PRO/1000 PCI-Express Network Driver"),
209 PVID(0x8086, E1000_DEV_ID_I350_SGMII, "Intel(R) PRO/1000 PCI-Express Network Driver"),
210 PVID(0x8086, E1000_DEV_ID_I350_VF, "Intel(R) PRO/1000 PCI-Express Network Driver"),
211 PVID(0x8086, E1000_DEV_ID_I210_COPPER, "Intel(R) PRO/1000 PCI-Express Network Driver"),
212 PVID(0x8086, E1000_DEV_ID_I210_COPPER_IT, "Intel(R) PRO/1000 PCI-Express Network Driver"),
213 PVID(0x8086, E1000_DEV_ID_I210_COPPER_OEM1, "Intel(R) PRO/1000 PCI-Express Network Driver"),
214 PVID(0x8086, E1000_DEV_ID_I210_COPPER_FLASHLESS, "Intel(R) PRO/1000 PCI-Express Network Driver"),
215 PVID(0x8086, E1000_DEV_ID_I210_SERDES_FLASHLESS, "Intel(R) PRO/1000 PCI-Express Network Driver"),
216 PVID(0x8086, E1000_DEV_ID_I210_FIBER, "Intel(R) PRO/1000 PCI-Express Network Driver"),
217 PVID(0x8086, E1000_DEV_ID_I210_SERDES, "Intel(R) PRO/1000 PCI-Express Network Driver"),
218 PVID(0x8086, E1000_DEV_ID_I210_SGMII, "Intel(R) PRO/1000 PCI-Express Network Driver"),
219 PVID(0x8086, E1000_DEV_ID_I211_COPPER, "Intel(R) PRO/1000 PCI-Express Network Driver"),
220 PVID(0x8086, E1000_DEV_ID_I354_BACKPLANE_1GBPS, "Intel(R) PRO/1000 PCI-Express Network Driver"),
221 PVID(0x8086, E1000_DEV_ID_I354_BACKPLANE_2_5GBPS, "Intel(R) PRO/1000 PCI-Express Network Driver"),
222 PVID(0x8086, E1000_DEV_ID_I354_SGMII, "Intel(R) PRO/1000 PCI-Express Network Driver"),
223 /* required last entry */
227 /*********************************************************************
228 * Function prototypes
229 *********************************************************************/
230 static void *em_register(device_t dev);
231 static void *igb_register(device_t dev);
232 static int em_if_attach_pre(if_ctx_t ctx);
233 static int em_if_attach_post(if_ctx_t ctx);
234 static int em_if_detach(if_ctx_t ctx);
235 static int em_if_shutdown(if_ctx_t ctx);
236 static int em_if_suspend(if_ctx_t ctx);
237 static int em_if_resume(if_ctx_t ctx);
239 static int em_if_tx_queues_alloc(if_ctx_t ctx, caddr_t *vaddrs, uint64_t *paddrs, int ntxqs, int ntxqsets);
240 static int em_if_rx_queues_alloc(if_ctx_t ctx, caddr_t *vaddrs, uint64_t *paddrs, int nrxqs, int nrxqsets);
241 static void em_if_queues_free(if_ctx_t ctx);
243 static uint64_t em_if_get_counter(if_ctx_t, ift_counter);
244 static void em_if_init(if_ctx_t ctx);
245 static void em_if_stop(if_ctx_t ctx);
246 static void em_if_media_status(if_ctx_t, struct ifmediareq *);
247 static int em_if_media_change(if_ctx_t ctx);
248 static int em_if_mtu_set(if_ctx_t ctx, uint32_t mtu);
249 static void em_if_timer(if_ctx_t ctx, uint16_t qid);
250 static void em_if_vlan_register(if_ctx_t ctx, u16 vtag);
251 static void em_if_vlan_unregister(if_ctx_t ctx, u16 vtag);
253 static void em_identify_hardware(if_ctx_t ctx);
254 static int em_allocate_pci_resources(if_ctx_t ctx);
255 static void em_free_pci_resources(if_ctx_t ctx);
256 static void em_reset(if_ctx_t ctx);
257 static int em_setup_interface(if_ctx_t ctx);
258 static int em_setup_msix(if_ctx_t ctx);
260 static void em_initialize_transmit_unit(if_ctx_t ctx);
261 static void em_initialize_receive_unit(if_ctx_t ctx);
263 static void em_if_enable_intr(if_ctx_t ctx);
264 static void em_if_disable_intr(if_ctx_t ctx);
265 static int em_if_rx_queue_intr_enable(if_ctx_t ctx, uint16_t rxqid);
266 static int em_if_tx_queue_intr_enable(if_ctx_t ctx, uint16_t txqid);
267 static void em_if_multi_set(if_ctx_t ctx);
268 static void em_if_update_admin_status(if_ctx_t ctx);
269 static void em_if_debug(if_ctx_t ctx);
270 static void em_update_stats_counters(struct adapter *);
271 static void em_add_hw_stats(struct adapter *adapter);
272 static int em_if_set_promisc(if_ctx_t ctx, int flags);
273 static void em_setup_vlan_hw_support(struct adapter *);
274 static int em_sysctl_nvm_info(SYSCTL_HANDLER_ARGS);
275 static void em_print_nvm_info(struct adapter *);
276 static int em_sysctl_debug_info(SYSCTL_HANDLER_ARGS);
277 static int em_get_rs(SYSCTL_HANDLER_ARGS);
278 static void em_print_debug_info(struct adapter *);
279 static int em_is_valid_ether_addr(u8 *);
280 static int em_sysctl_int_delay(SYSCTL_HANDLER_ARGS);
281 static void em_add_int_delay_sysctl(struct adapter *, const char *,
282 const char *, struct em_int_delay_info *, int, int);
283 /* Management and WOL Support */
284 static void em_init_manageability(struct adapter *);
285 static void em_release_manageability(struct adapter *);
286 static void em_get_hw_control(struct adapter *);
287 static void em_release_hw_control(struct adapter *);
288 static void em_get_wakeup(if_ctx_t ctx);
289 static void em_enable_wakeup(if_ctx_t ctx);
290 static int em_enable_phy_wakeup(struct adapter *);
291 static void em_disable_aspm(struct adapter *);
293 int em_intr(void *arg);
294 static void em_disable_promisc(if_ctx_t ctx);
297 static int em_if_msix_intr_assign(if_ctx_t, int);
298 static int em_msix_link(void *);
299 static void em_handle_link(void *context);
301 static void em_enable_vectors_82574(if_ctx_t);
303 static int em_set_flowcntl(SYSCTL_HANDLER_ARGS);
304 static int em_sysctl_eee(SYSCTL_HANDLER_ARGS);
305 static void em_if_led_func(if_ctx_t ctx, int onoff);
307 static int em_get_regs(SYSCTL_HANDLER_ARGS);
309 static void lem_smartspeed(struct adapter *adapter);
310 static void igb_configure_queues(struct adapter *adapter);
313 /*********************************************************************
314 * FreeBSD Device Interface Entry Points
315 *********************************************************************/
316 static device_method_t em_methods[] = {
317 /* Device interface */
318 DEVMETHOD(device_register, em_register),
319 DEVMETHOD(device_probe, iflib_device_probe),
320 DEVMETHOD(device_attach, iflib_device_attach),
321 DEVMETHOD(device_detach, iflib_device_detach),
322 DEVMETHOD(device_shutdown, iflib_device_shutdown),
323 DEVMETHOD(device_suspend, iflib_device_suspend),
324 DEVMETHOD(device_resume, iflib_device_resume),
328 static device_method_t igb_methods[] = {
329 /* Device interface */
330 DEVMETHOD(device_register, igb_register),
331 DEVMETHOD(device_probe, iflib_device_probe),
332 DEVMETHOD(device_attach, iflib_device_attach),
333 DEVMETHOD(device_detach, iflib_device_detach),
334 DEVMETHOD(device_shutdown, iflib_device_shutdown),
335 DEVMETHOD(device_suspend, iflib_device_suspend),
336 DEVMETHOD(device_resume, iflib_device_resume),
341 static driver_t em_driver = {
342 "em", em_methods, sizeof(struct adapter),
345 static devclass_t em_devclass;
346 DRIVER_MODULE(em, pci, em_driver, em_devclass, 0, 0);
348 MODULE_DEPEND(em, pci, 1, 1, 1);
349 MODULE_DEPEND(em, ether, 1, 1, 1);
350 MODULE_DEPEND(em, iflib, 1, 1, 1);
352 IFLIB_PNP_INFO(pci, em, em_vendor_info_array);
354 static driver_t igb_driver = {
355 "igb", igb_methods, sizeof(struct adapter),
358 static devclass_t igb_devclass;
359 DRIVER_MODULE(igb, pci, igb_driver, igb_devclass, 0, 0);
361 MODULE_DEPEND(igb, pci, 1, 1, 1);
362 MODULE_DEPEND(igb, ether, 1, 1, 1);
363 MODULE_DEPEND(igb, iflib, 1, 1, 1);
365 IFLIB_PNP_INFO(pci, igb, igb_vendor_info_array);
367 static device_method_t em_if_methods[] = {
368 DEVMETHOD(ifdi_attach_pre, em_if_attach_pre),
369 DEVMETHOD(ifdi_attach_post, em_if_attach_post),
370 DEVMETHOD(ifdi_detach, em_if_detach),
371 DEVMETHOD(ifdi_shutdown, em_if_shutdown),
372 DEVMETHOD(ifdi_suspend, em_if_suspend),
373 DEVMETHOD(ifdi_resume, em_if_resume),
374 DEVMETHOD(ifdi_init, em_if_init),
375 DEVMETHOD(ifdi_stop, em_if_stop),
376 DEVMETHOD(ifdi_msix_intr_assign, em_if_msix_intr_assign),
377 DEVMETHOD(ifdi_intr_enable, em_if_enable_intr),
378 DEVMETHOD(ifdi_intr_disable, em_if_disable_intr),
379 DEVMETHOD(ifdi_tx_queues_alloc, em_if_tx_queues_alloc),
380 DEVMETHOD(ifdi_rx_queues_alloc, em_if_rx_queues_alloc),
381 DEVMETHOD(ifdi_queues_free, em_if_queues_free),
382 DEVMETHOD(ifdi_update_admin_status, em_if_update_admin_status),
383 DEVMETHOD(ifdi_multi_set, em_if_multi_set),
384 DEVMETHOD(ifdi_media_status, em_if_media_status),
385 DEVMETHOD(ifdi_media_change, em_if_media_change),
386 DEVMETHOD(ifdi_mtu_set, em_if_mtu_set),
387 DEVMETHOD(ifdi_promisc_set, em_if_set_promisc),
388 DEVMETHOD(ifdi_timer, em_if_timer),
389 DEVMETHOD(ifdi_vlan_register, em_if_vlan_register),
390 DEVMETHOD(ifdi_vlan_unregister, em_if_vlan_unregister),
391 DEVMETHOD(ifdi_get_counter, em_if_get_counter),
392 DEVMETHOD(ifdi_led_func, em_if_led_func),
393 DEVMETHOD(ifdi_rx_queue_intr_enable, em_if_rx_queue_intr_enable),
394 DEVMETHOD(ifdi_tx_queue_intr_enable, em_if_tx_queue_intr_enable),
395 DEVMETHOD(ifdi_debug, em_if_debug),
400 * note that if (adapter->msix_mem) is replaced by:
401 * if (adapter->intr_type == IFLIB_INTR_MSIX)
403 static driver_t em_if_driver = {
404 "em_if", em_if_methods, sizeof(struct adapter)
407 /*********************************************************************
408 * Tunable default values.
409 *********************************************************************/
411 #define EM_TICKS_TO_USECS(ticks) ((1024 * (ticks) + 500) / 1000)
412 #define EM_USECS_TO_TICKS(usecs) ((1000 * (usecs) + 512) / 1024)
415 #define MAX_INTS_PER_SEC 8000
416 #define DEFAULT_ITR (1000000000/(MAX_INTS_PER_SEC * 256))
418 /* Allow common code without TSO */
423 #define TSO_WORKAROUND 4
425 static SYSCTL_NODE(_hw, OID_AUTO, em, CTLFLAG_RD, 0, "EM driver parameters");
427 static int em_disable_crc_stripping = 0;
428 SYSCTL_INT(_hw_em, OID_AUTO, disable_crc_stripping, CTLFLAG_RDTUN,
429 &em_disable_crc_stripping, 0, "Disable CRC Stripping");
431 static int em_tx_int_delay_dflt = EM_TICKS_TO_USECS(EM_TIDV);
432 static int em_rx_int_delay_dflt = EM_TICKS_TO_USECS(EM_RDTR);
433 SYSCTL_INT(_hw_em, OID_AUTO, tx_int_delay, CTLFLAG_RDTUN, &em_tx_int_delay_dflt,
434 0, "Default transmit interrupt delay in usecs");
435 SYSCTL_INT(_hw_em, OID_AUTO, rx_int_delay, CTLFLAG_RDTUN, &em_rx_int_delay_dflt,
436 0, "Default receive interrupt delay in usecs");
438 static int em_tx_abs_int_delay_dflt = EM_TICKS_TO_USECS(EM_TADV);
439 static int em_rx_abs_int_delay_dflt = EM_TICKS_TO_USECS(EM_RADV);
440 SYSCTL_INT(_hw_em, OID_AUTO, tx_abs_int_delay, CTLFLAG_RDTUN,
441 &em_tx_abs_int_delay_dflt, 0,
442 "Default transmit interrupt delay limit in usecs");
443 SYSCTL_INT(_hw_em, OID_AUTO, rx_abs_int_delay, CTLFLAG_RDTUN,
444 &em_rx_abs_int_delay_dflt, 0,
445 "Default receive interrupt delay limit in usecs");
447 static int em_smart_pwr_down = FALSE;
448 SYSCTL_INT(_hw_em, OID_AUTO, smart_pwr_down, CTLFLAG_RDTUN, &em_smart_pwr_down,
449 0, "Set to true to leave smart power down enabled on newer adapters");
451 /* Controls whether promiscuous also shows bad packets */
452 static int em_debug_sbp = TRUE;
453 SYSCTL_INT(_hw_em, OID_AUTO, sbp, CTLFLAG_RDTUN, &em_debug_sbp, 0,
454 "Show bad packets in promiscuous mode");
456 /* How many packets rxeof tries to clean at a time */
457 static int em_rx_process_limit = 100;
458 SYSCTL_INT(_hw_em, OID_AUTO, rx_process_limit, CTLFLAG_RDTUN,
459 &em_rx_process_limit, 0,
460 "Maximum number of received packets to process "
461 "at a time, -1 means unlimited");
463 /* Energy efficient ethernet - default to OFF */
464 static int eee_setting = 1;
465 SYSCTL_INT(_hw_em, OID_AUTO, eee_setting, CTLFLAG_RDTUN, &eee_setting, 0,
466 "Enable Energy Efficient Ethernet");
469 ** Tuneable Interrupt rate
471 static int em_max_interrupt_rate = 8000;
472 SYSCTL_INT(_hw_em, OID_AUTO, max_interrupt_rate, CTLFLAG_RDTUN,
473 &em_max_interrupt_rate, 0, "Maximum interrupts per second");
477 /* Global used in WOL setup with multiport cards */
478 static int global_quad_port_a = 0;
480 extern struct if_txrx igb_txrx;
481 extern struct if_txrx em_txrx;
482 extern struct if_txrx lem_txrx;
484 static struct if_shared_ctx em_sctx_init = {
485 .isc_magic = IFLIB_MAGIC,
486 .isc_q_align = PAGE_SIZE,
487 .isc_tx_maxsize = EM_TSO_SIZE,
488 .isc_tx_maxsegsize = PAGE_SIZE,
489 .isc_rx_maxsize = MJUM9BYTES,
490 .isc_rx_nsegments = 1,
491 .isc_rx_maxsegsize = MJUM9BYTES,
495 .isc_admin_intrcnt = 1,
496 .isc_vendor_info = em_vendor_info_array,
497 .isc_driver_version = em_driver_version,
498 .isc_driver = &em_if_driver,
499 .isc_flags = IFLIB_NEED_SCRATCH | IFLIB_TSO_INIT_IP | IFLIB_NEED_ZERO_CSUM,
501 .isc_nrxd_min = {EM_MIN_RXD},
502 .isc_ntxd_min = {EM_MIN_TXD},
503 .isc_nrxd_max = {EM_MAX_RXD},
504 .isc_ntxd_max = {EM_MAX_TXD},
505 .isc_nrxd_default = {EM_DEFAULT_RXD},
506 .isc_ntxd_default = {EM_DEFAULT_TXD},
509 if_shared_ctx_t em_sctx = &em_sctx_init;
512 static struct if_shared_ctx igb_sctx_init = {
513 .isc_magic = IFLIB_MAGIC,
514 .isc_q_align = PAGE_SIZE,
515 .isc_tx_maxsize = EM_TSO_SIZE,
516 .isc_tx_maxsegsize = PAGE_SIZE,
517 .isc_rx_maxsize = MJUM9BYTES,
518 .isc_rx_nsegments = 1,
519 .isc_rx_maxsegsize = MJUM9BYTES,
523 .isc_admin_intrcnt = 1,
524 .isc_vendor_info = igb_vendor_info_array,
525 .isc_driver_version = em_driver_version,
526 .isc_driver = &em_if_driver,
527 .isc_flags = IFLIB_NEED_SCRATCH | IFLIB_TSO_INIT_IP | IFLIB_NEED_ZERO_CSUM,
529 .isc_nrxd_min = {EM_MIN_RXD},
530 .isc_ntxd_min = {EM_MIN_TXD},
531 .isc_nrxd_max = {IGB_MAX_RXD},
532 .isc_ntxd_max = {IGB_MAX_TXD},
533 .isc_nrxd_default = {EM_DEFAULT_RXD},
534 .isc_ntxd_default = {EM_DEFAULT_TXD},
537 if_shared_ctx_t igb_sctx = &igb_sctx_init;
539 /*****************************************************************
543 ****************************************************************/
544 #define IGB_REGS_LEN 739
546 static int em_get_regs(SYSCTL_HANDLER_ARGS)
548 struct adapter *adapter = (struct adapter *)arg1;
549 struct e1000_hw *hw = &adapter->hw;
554 regs_buff = malloc(sizeof(u32) * IGB_REGS_LEN, M_DEVBUF, M_WAITOK);
555 memset(regs_buff, 0, IGB_REGS_LEN * sizeof(u32));
557 rc = sysctl_wire_old_buffer(req, 0);
560 free(regs_buff, M_DEVBUF);
564 sb = sbuf_new_for_sysctl(NULL, NULL, 32*400, req);
567 free(regs_buff, M_DEVBUF);
571 /* General Registers */
572 regs_buff[0] = E1000_READ_REG(hw, E1000_CTRL);
573 regs_buff[1] = E1000_READ_REG(hw, E1000_STATUS);
574 regs_buff[2] = E1000_READ_REG(hw, E1000_CTRL_EXT);
575 regs_buff[3] = E1000_READ_REG(hw, E1000_ICR);
576 regs_buff[4] = E1000_READ_REG(hw, E1000_RCTL);
577 regs_buff[5] = E1000_READ_REG(hw, E1000_RDLEN(0));
578 regs_buff[6] = E1000_READ_REG(hw, E1000_RDH(0));
579 regs_buff[7] = E1000_READ_REG(hw, E1000_RDT(0));
580 regs_buff[8] = E1000_READ_REG(hw, E1000_RXDCTL(0));
581 regs_buff[9] = E1000_READ_REG(hw, E1000_RDBAL(0));
582 regs_buff[10] = E1000_READ_REG(hw, E1000_RDBAH(0));
583 regs_buff[11] = E1000_READ_REG(hw, E1000_TCTL);
584 regs_buff[12] = E1000_READ_REG(hw, E1000_TDBAL(0));
585 regs_buff[13] = E1000_READ_REG(hw, E1000_TDBAH(0));
586 regs_buff[14] = E1000_READ_REG(hw, E1000_TDLEN(0));
587 regs_buff[15] = E1000_READ_REG(hw, E1000_TDH(0));
588 regs_buff[16] = E1000_READ_REG(hw, E1000_TDT(0));
589 regs_buff[17] = E1000_READ_REG(hw, E1000_TXDCTL(0));
590 regs_buff[18] = E1000_READ_REG(hw, E1000_TDFH);
591 regs_buff[19] = E1000_READ_REG(hw, E1000_TDFT);
592 regs_buff[20] = E1000_READ_REG(hw, E1000_TDFHS);
593 regs_buff[21] = E1000_READ_REG(hw, E1000_TDFPC);
595 sbuf_printf(sb, "General Registers\n");
596 sbuf_printf(sb, "\tCTRL\t %08x\n", regs_buff[0]);
597 sbuf_printf(sb, "\tSTATUS\t %08x\n", regs_buff[1]);
598 sbuf_printf(sb, "\tCTRL_EXIT\t %08x\n\n", regs_buff[2]);
600 sbuf_printf(sb, "Interrupt Registers\n");
601 sbuf_printf(sb, "\tICR\t %08x\n\n", regs_buff[3]);
603 sbuf_printf(sb, "RX Registers\n");
604 sbuf_printf(sb, "\tRCTL\t %08x\n", regs_buff[4]);
605 sbuf_printf(sb, "\tRDLEN\t %08x\n", regs_buff[5]);
606 sbuf_printf(sb, "\tRDH\t %08x\n", regs_buff[6]);
607 sbuf_printf(sb, "\tRDT\t %08x\n", regs_buff[7]);
608 sbuf_printf(sb, "\tRXDCTL\t %08x\n", regs_buff[8]);
609 sbuf_printf(sb, "\tRDBAL\t %08x\n", regs_buff[9]);
610 sbuf_printf(sb, "\tRDBAH\t %08x\n\n", regs_buff[10]);
612 sbuf_printf(sb, "TX Registers\n");
613 sbuf_printf(sb, "\tTCTL\t %08x\n", regs_buff[11]);
614 sbuf_printf(sb, "\tTDBAL\t %08x\n", regs_buff[12]);
615 sbuf_printf(sb, "\tTDBAH\t %08x\n", regs_buff[13]);
616 sbuf_printf(sb, "\tTDLEN\t %08x\n", regs_buff[14]);
617 sbuf_printf(sb, "\tTDH\t %08x\n", regs_buff[15]);
618 sbuf_printf(sb, "\tTDT\t %08x\n", regs_buff[16]);
619 sbuf_printf(sb, "\tTXDCTL\t %08x\n", regs_buff[17]);
620 sbuf_printf(sb, "\tTDFH\t %08x\n", regs_buff[18]);
621 sbuf_printf(sb, "\tTDFT\t %08x\n", regs_buff[19]);
622 sbuf_printf(sb, "\tTDFHS\t %08x\n", regs_buff[20]);
623 sbuf_printf(sb, "\tTDFPC\t %08x\n\n", regs_buff[21]);
625 free(regs_buff, M_DEVBUF);
629 if_softc_ctx_t scctx = adapter->shared;
630 struct rx_ring *rxr = &rx_que->rxr;
631 struct tx_ring *txr = &tx_que->txr;
632 int ntxd = scctx->isc_ntxd[0];
633 int nrxd = scctx->isc_nrxd[0];
636 for (j = 0; j < nrxd; j++) {
637 u32 staterr = le32toh(rxr->rx_base[j].wb.upper.status_error);
638 u32 length = le32toh(rxr->rx_base[j].wb.upper.length);
639 sbuf_printf(sb, "\tReceive Descriptor Address %d: %08" PRIx64 " Error:%d Length:%d\n", j, rxr->rx_base[j].read.buffer_addr, staterr, length);
642 for (j = 0; j < min(ntxd, 256); j++) {
643 unsigned int *ptr = (unsigned int *)&txr->tx_base[j];
645 sbuf_printf(sb, "\tTXD[%03d] [0]: %08x [1]: %08x [2]: %08x [3]: %08x eop: %d DD=%d\n",
646 j, ptr[0], ptr[1], ptr[2], ptr[3], buf->eop,
647 buf->eop != -1 ? txr->tx_base[buf->eop].upper.fields.status & E1000_TXD_STAT_DD : 0);
653 rc = sbuf_finish(sb);
659 em_register(device_t dev)
665 igb_register(device_t dev)
671 em_set_num_queues(if_ctx_t ctx)
673 struct adapter *adapter = iflib_get_softc(ctx);
676 /* Sanity check based on HW */
677 switch (adapter->hw.mac.type) {
702 IFCAP_TSO4 | IFCAP_TXCSUM | IFCAP_LRO | IFCAP_RXCSUM | IFCAP_VLAN_HWFILTER | IFCAP_WOL_MAGIC | \
703 IFCAP_WOL_MCAST | IFCAP_WOL | IFCAP_VLAN_HWTSO | IFCAP_HWCSUM | IFCAP_VLAN_HWTAGGING | \
704 IFCAP_VLAN_HWCSUM | IFCAP_VLAN_HWTSO | IFCAP_VLAN_MTU;
707 IFCAP_TSO4 | IFCAP_TXCSUM | IFCAP_LRO | IFCAP_RXCSUM | IFCAP_VLAN_HWFILTER | IFCAP_WOL_MAGIC | \
708 IFCAP_WOL_MCAST | IFCAP_WOL | IFCAP_VLAN_HWTSO | IFCAP_HWCSUM | IFCAP_VLAN_HWTAGGING | IFCAP_VLAN_HWCSUM | \
709 IFCAP_VLAN_HWTSO | IFCAP_VLAN_MTU | IFCAP_TXCSUM_IPV6 | IFCAP_HWCSUM_IPV6 | IFCAP_JUMBO_MTU;
711 /*********************************************************************
712 * Device initialization routine
714 * The attach entry point is called when the driver is being loaded.
715 * This routine identifies the type of hardware, allocates all resources
716 * and initializes the hardware.
718 * return 0 on success, positive on failure
719 *********************************************************************/
722 em_if_attach_pre(if_ctx_t ctx)
724 struct adapter *adapter;
725 if_softc_ctx_t scctx;
730 INIT_DEBUGOUT("em_if_attach_pre begin");
731 dev = iflib_get_dev(ctx);
732 adapter = iflib_get_softc(ctx);
734 if (resource_disabled("em", device_get_unit(dev))) {
735 device_printf(dev, "Disabled by device hint\n");
740 adapter->dev = adapter->osdep.dev = dev;
741 scctx = adapter->shared = iflib_get_softc_ctx(ctx);
742 adapter->media = iflib_get_media(ctx);
745 adapter->tx_process_limit = scctx->isc_ntxd[0];
748 SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
749 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
750 OID_AUTO, "nvm", CTLTYPE_INT|CTLFLAG_RW, adapter, 0,
751 em_sysctl_nvm_info, "I", "NVM Information");
753 SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
754 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
755 OID_AUTO, "debug", CTLTYPE_INT|CTLFLAG_RW, adapter, 0,
756 em_sysctl_debug_info, "I", "Debug Information");
758 SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
759 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
760 OID_AUTO, "fc", CTLTYPE_INT|CTLFLAG_RW, adapter, 0,
761 em_set_flowcntl, "I", "Flow Control");
763 SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
764 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
765 OID_AUTO, "reg_dump", CTLTYPE_STRING | CTLFLAG_RD, adapter, 0,
766 em_get_regs, "A", "Dump Registers");
768 SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
769 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
770 OID_AUTO, "rs_dump", CTLTYPE_INT | CTLFLAG_RW, adapter, 0,
771 em_get_rs, "I", "Dump RS indexes");
773 /* Determine hardware and mac info */
774 em_identify_hardware(ctx);
776 /* Set isc_msix_bar */
777 scctx->isc_msix_bar = PCIR_BAR(EM_MSIX_BAR);
778 scctx->isc_tx_nsegments = EM_MAX_SCATTER;
779 scctx->isc_tx_tso_segments_max = scctx->isc_tx_nsegments;
780 scctx->isc_tx_tso_size_max = EM_TSO_SIZE;
781 scctx->isc_tx_tso_segsize_max = EM_TSO_SEG_SIZE;
782 scctx->isc_nrxqsets_max = scctx->isc_ntxqsets_max = em_set_num_queues(ctx);
783 device_printf(dev, "attach_pre capping queues at %d\n", scctx->isc_ntxqsets_max);
785 scctx->isc_tx_csum_flags = CSUM_TCP | CSUM_UDP | CSUM_IP_TSO;
788 if (adapter->hw.mac.type >= igb_mac_min) {
791 scctx->isc_txqsizes[0] = roundup2(scctx->isc_ntxd[0] * sizeof(union e1000_adv_tx_desc), EM_DBA_ALIGN);
792 scctx->isc_rxqsizes[0] = roundup2(scctx->isc_nrxd[0] * sizeof(union e1000_adv_rx_desc), EM_DBA_ALIGN);
793 scctx->isc_txd_size[0] = sizeof(union e1000_adv_tx_desc);
794 scctx->isc_rxd_size[0] = sizeof(union e1000_adv_rx_desc);
795 scctx->isc_txrx = &igb_txrx;
796 scctx->isc_capenable = IGB_CAPS;
797 scctx->isc_tx_csum_flags = CSUM_TCP | CSUM_UDP | CSUM_TSO | CSUM_IP6_TCP \
798 | CSUM_IP6_UDP | CSUM_IP6_TCP;
799 if (adapter->hw.mac.type != e1000_82575)
800 scctx->isc_tx_csum_flags |= CSUM_SCTP | CSUM_IP6_SCTP;
803 ** Some new devices, as with ixgbe, now may
804 ** use a different BAR, so we need to keep
805 ** track of which is used.
807 try_second_bar = pci_read_config(dev, scctx->isc_msix_bar, 4);
808 if (try_second_bar == 0)
809 scctx->isc_msix_bar += 4;
811 } else if (adapter->hw.mac.type >= em_mac_min) {
812 scctx->isc_txqsizes[0] = roundup2(scctx->isc_ntxd[0]* sizeof(struct e1000_tx_desc), EM_DBA_ALIGN);
813 scctx->isc_rxqsizes[0] = roundup2(scctx->isc_nrxd[0] * sizeof(union e1000_rx_desc_extended), EM_DBA_ALIGN);
814 scctx->isc_txd_size[0] = sizeof(struct e1000_tx_desc);
815 scctx->isc_rxd_size[0] = sizeof(union e1000_rx_desc_extended);
816 scctx->isc_txrx = &em_txrx;
817 scctx->isc_capenable = EM_CAPS;
818 scctx->isc_tx_csum_flags = CSUM_TCP | CSUM_UDP | CSUM_IP_TSO;
820 scctx->isc_txqsizes[0] = roundup2((scctx->isc_ntxd[0] + 1) * sizeof(struct e1000_tx_desc), EM_DBA_ALIGN);
821 scctx->isc_rxqsizes[0] = roundup2((scctx->isc_nrxd[0] + 1) * sizeof(struct e1000_rx_desc), EM_DBA_ALIGN);
822 scctx->isc_txd_size[0] = sizeof(struct e1000_tx_desc);
823 scctx->isc_rxd_size[0] = sizeof(struct e1000_rx_desc);
824 scctx->isc_tx_csum_flags = CSUM_TCP | CSUM_UDP | CSUM_IP_TSO;
825 scctx->isc_txrx = &lem_txrx;
826 scctx->isc_capenable = EM_CAPS;
827 if (adapter->hw.mac.type < e1000_82543)
828 scctx->isc_capenable &= ~(IFCAP_HWCSUM|IFCAP_VLAN_HWCSUM);
829 scctx->isc_tx_csum_flags = CSUM_TCP | CSUM_UDP | CSUM_IP_TSO;
830 scctx->isc_msix_bar = 0;
833 /* Setup PCI resources */
834 if (em_allocate_pci_resources(ctx)) {
835 device_printf(dev, "Allocation of PCI resources failed\n");
841 ** For ICH8 and family we need to
842 ** map the flash memory, and this
843 ** must happen after the MAC is
846 if ((hw->mac.type == e1000_ich8lan) ||
847 (hw->mac.type == e1000_ich9lan) ||
848 (hw->mac.type == e1000_ich10lan) ||
849 (hw->mac.type == e1000_pchlan) ||
850 (hw->mac.type == e1000_pch2lan) ||
851 (hw->mac.type == e1000_pch_lpt)) {
852 int rid = EM_BAR_TYPE_FLASH;
853 adapter->flash = bus_alloc_resource_any(dev,
854 SYS_RES_MEMORY, &rid, RF_ACTIVE);
855 if (adapter->flash == NULL) {
856 device_printf(dev, "Mapping of Flash failed\n");
860 /* This is used in the shared code */
861 hw->flash_address = (u8 *)adapter->flash;
862 adapter->osdep.flash_bus_space_tag =
863 rman_get_bustag(adapter->flash);
864 adapter->osdep.flash_bus_space_handle =
865 rman_get_bushandle(adapter->flash);
868 ** In the new SPT device flash is not a
869 ** separate BAR, rather it is also in BAR0,
870 ** so use the same tag and an offset handle for the
871 ** FLASH read/write macros in the shared code.
873 else if (hw->mac.type >= e1000_pch_spt) {
874 adapter->osdep.flash_bus_space_tag =
875 adapter->osdep.mem_bus_space_tag;
876 adapter->osdep.flash_bus_space_handle =
877 adapter->osdep.mem_bus_space_handle
878 + E1000_FLASH_BASE_ADDR;
881 /* Do Shared Code initialization */
882 error = e1000_setup_init_funcs(hw, TRUE);
884 device_printf(dev, "Setup of Shared code failed, error %d\n",
891 e1000_get_bus_info(hw);
893 /* Set up some sysctls for the tunable interrupt delays */
894 em_add_int_delay_sysctl(adapter, "rx_int_delay",
895 "receive interrupt delay in usecs", &adapter->rx_int_delay,
896 E1000_REGISTER(hw, E1000_RDTR), em_rx_int_delay_dflt);
897 em_add_int_delay_sysctl(adapter, "tx_int_delay",
898 "transmit interrupt delay in usecs", &adapter->tx_int_delay,
899 E1000_REGISTER(hw, E1000_TIDV), em_tx_int_delay_dflt);
900 em_add_int_delay_sysctl(adapter, "rx_abs_int_delay",
901 "receive interrupt delay limit in usecs",
902 &adapter->rx_abs_int_delay,
903 E1000_REGISTER(hw, E1000_RADV),
904 em_rx_abs_int_delay_dflt);
905 em_add_int_delay_sysctl(adapter, "tx_abs_int_delay",
906 "transmit interrupt delay limit in usecs",
907 &adapter->tx_abs_int_delay,
908 E1000_REGISTER(hw, E1000_TADV),
909 em_tx_abs_int_delay_dflt);
910 em_add_int_delay_sysctl(adapter, "itr",
911 "interrupt delay limit in usecs/4",
913 E1000_REGISTER(hw, E1000_ITR),
916 hw->mac.autoneg = DO_AUTO_NEG;
917 hw->phy.autoneg_wait_to_complete = FALSE;
918 hw->phy.autoneg_advertised = AUTONEG_ADV_DEFAULT;
920 if (adapter->hw.mac.type < em_mac_min) {
921 e1000_init_script_state_82541(&adapter->hw, TRUE);
922 e1000_set_tbi_compatibility_82543(&adapter->hw, TRUE);
925 if (hw->phy.media_type == e1000_media_type_copper) {
926 hw->phy.mdix = AUTO_ALL_MODES;
927 hw->phy.disable_polarity_correction = FALSE;
928 hw->phy.ms_type = EM_MASTER_SLAVE;
932 * Set the frame limits assuming
933 * standard ethernet sized frames.
935 scctx->isc_max_frame_size = adapter->hw.mac.max_frame_size =
936 ETHERMTU + ETHER_HDR_LEN + ETHERNET_FCS_SIZE;
939 * This controls when hardware reports transmit completion
942 hw->mac.report_tx_early = 1;
944 /* Allocate multicast array memory. */
945 adapter->mta = malloc(sizeof(u8) * ETH_ADDR_LEN *
946 MAX_NUM_MULTICAST_ADDRESSES, M_DEVBUF, M_NOWAIT);
947 if (adapter->mta == NULL) {
948 device_printf(dev, "Can not allocate multicast setup array\n");
953 /* Check SOL/IDER usage */
954 if (e1000_check_reset_block(hw))
955 device_printf(dev, "PHY reset is blocked"
956 " due to SOL/IDER session.\n");
958 /* Sysctl for setting Energy Efficient Ethernet */
959 hw->dev_spec.ich8lan.eee_disable = eee_setting;
960 SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
961 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
962 OID_AUTO, "eee_control", CTLTYPE_INT|CTLFLAG_RW,
963 adapter, 0, em_sysctl_eee, "I",
964 "Disable Energy Efficient Ethernet");
967 ** Start from a known state, this is
968 ** important in reading the nvm and
973 /* Make sure we have a good EEPROM before we read from it */
974 if (e1000_validate_nvm_checksum(hw) < 0) {
976 ** Some PCI-E parts fail the first check due to
977 ** the link being in sleep state, call it again,
978 ** if it fails a second time its a real issue.
980 if (e1000_validate_nvm_checksum(hw) < 0) {
982 "The EEPROM Checksum Is Not Valid\n");
988 /* Copy the permanent MAC address out of the EEPROM */
989 if (e1000_read_mac_addr(hw) < 0) {
990 device_printf(dev, "EEPROM read error while reading MAC"
996 if (!em_is_valid_ether_addr(hw->mac.addr)) {
997 device_printf(dev, "Invalid MAC address\n");
1002 /* Disable ULP support */
1003 e1000_disable_ulp_lpt_lp(hw, TRUE);
1006 * Get Wake-on-Lan and Management info for later use
1010 iflib_set_mac(ctx, hw->mac.addr);
1015 em_release_hw_control(adapter);
1017 em_free_pci_resources(ctx);
1018 free(adapter->mta, M_DEVBUF);
1024 em_if_attach_post(if_ctx_t ctx)
1026 struct adapter *adapter = iflib_get_softc(ctx);
1027 struct e1000_hw *hw = &adapter->hw;
1030 /* Setup OS specific network interface */
1031 error = em_setup_interface(ctx);
1038 /* Initialize statistics */
1039 em_update_stats_counters(adapter);
1040 hw->mac.get_link_status = 1;
1041 em_if_update_admin_status(ctx);
1042 em_add_hw_stats(adapter);
1044 /* Non-AMT based hardware can now take control from firmware */
1045 if (adapter->has_manage && !adapter->has_amt)
1046 em_get_hw_control(adapter);
1048 INIT_DEBUGOUT("em_if_attach_post: end");
1053 em_release_hw_control(adapter);
1054 em_free_pci_resources(ctx);
1055 em_if_queues_free(ctx);
1056 free(adapter->mta, M_DEVBUF);
1061 /*********************************************************************
1062 * Device removal routine
1064 * The detach entry point is called when the driver is being removed.
1065 * This routine stops the adapter and deallocates all the resources
1066 * that were allocated for driver operation.
1068 * return 0 on success, positive on failure
1069 *********************************************************************/
1072 em_if_detach(if_ctx_t ctx)
1074 struct adapter *adapter = iflib_get_softc(ctx);
1076 INIT_DEBUGOUT("em_detach: begin");
1078 e1000_phy_hw_reset(&adapter->hw);
1080 em_release_manageability(adapter);
1081 em_release_hw_control(adapter);
1082 em_free_pci_resources(ctx);
1087 /*********************************************************************
1089 * Shutdown entry point
1091 **********************************************************************/
1094 em_if_shutdown(if_ctx_t ctx)
1096 return em_if_suspend(ctx);
1100 * Suspend/resume device methods.
1103 em_if_suspend(if_ctx_t ctx)
1105 struct adapter *adapter = iflib_get_softc(ctx);
1107 em_release_manageability(adapter);
1108 em_release_hw_control(adapter);
1109 em_enable_wakeup(ctx);
1114 em_if_resume(if_ctx_t ctx)
1116 struct adapter *adapter = iflib_get_softc(ctx);
1118 if (adapter->hw.mac.type == e1000_pch2lan)
1119 e1000_resume_workarounds_pchlan(&adapter->hw);
1121 em_init_manageability(adapter);
1127 em_if_mtu_set(if_ctx_t ctx, uint32_t mtu)
1130 struct adapter *adapter = iflib_get_softc(ctx);
1131 if_softc_ctx_t scctx = iflib_get_softc_ctx(ctx);
1133 IOCTL_DEBUGOUT("ioctl rcv'd: SIOCSIFMTU (Set Interface MTU)");
1135 switch (adapter->hw.mac.type) {
1139 case e1000_ich10lan:
1146 case e1000_80003es2lan:
1147 /* 9K Jumbo Frame size */
1148 max_frame_size = 9234;
1151 max_frame_size = 4096;
1155 /* Adapters that do not support jumbo frames */
1156 max_frame_size = ETHER_MAX_LEN;
1159 if (adapter->hw.mac.type >= igb_mac_min)
1160 max_frame_size = 9234;
1162 max_frame_size = MAX_JUMBO_FRAME_SIZE;
1164 if (mtu > max_frame_size - ETHER_HDR_LEN - ETHER_CRC_LEN) {
1168 scctx->isc_max_frame_size = adapter->hw.mac.max_frame_size =
1169 mtu + ETHER_HDR_LEN + ETHER_CRC_LEN;
1173 /*********************************************************************
1176 * This routine is used in two ways. It is used by the stack as
1177 * init entry point in network interface structure. It is also used
1178 * by the driver as a hw/sw initialization routine to get to a
1181 * return 0 on success, positive on failure
1182 **********************************************************************/
1185 em_if_init(if_ctx_t ctx)
1187 struct adapter *adapter = iflib_get_softc(ctx);
1188 struct ifnet *ifp = iflib_get_ifp(ctx);
1189 struct em_tx_queue *tx_que;
1191 INIT_DEBUGOUT("em_if_init: begin");
1193 /* Get the latest mac address, User can use a LAA */
1194 bcopy(if_getlladdr(ifp), adapter->hw.mac.addr,
1197 /* Put the address into the Receive Address Array */
1198 e1000_rar_set(&adapter->hw, adapter->hw.mac.addr, 0);
1201 * With the 82571 adapter, RAR[0] may be overwritten
1202 * when the other port is reset, we make a duplicate
1203 * in RAR[14] for that eventuality, this assures
1204 * the interface continues to function.
1206 if (adapter->hw.mac.type == e1000_82571) {
1207 e1000_set_laa_state_82571(&adapter->hw, TRUE);
1208 e1000_rar_set(&adapter->hw, adapter->hw.mac.addr,
1209 E1000_RAR_ENTRIES - 1);
1213 /* Initialize the hardware */
1215 em_if_update_admin_status(ctx);
1217 for (i = 0, tx_que = adapter->tx_queues; i < adapter->tx_num_queues; i++, tx_que++) {
1218 struct tx_ring *txr = &tx_que->txr;
1220 txr->tx_rs_cidx = txr->tx_rs_pidx = txr->tx_cidx_processed = 0;
1223 /* Setup VLAN support, basic and offload if available */
1224 E1000_WRITE_REG(&adapter->hw, E1000_VET, ETHERTYPE_VLAN);
1226 /* Clear bad data from Rx FIFOs */
1227 if (adapter->hw.mac.type >= igb_mac_min)
1228 e1000_rx_fifo_flush_82575(&adapter->hw);
1230 /* Configure for OS presence */
1231 em_init_manageability(adapter);
1233 /* Prepare transmit descriptors and buffers */
1234 em_initialize_transmit_unit(ctx);
1236 /* Setup Multicast table */
1237 em_if_multi_set(ctx);
1240 * Figure out the desired mbuf
1241 * pool for doing jumbos
1243 if (adapter->hw.mac.max_frame_size <= 2048)
1244 adapter->rx_mbuf_sz = MCLBYTES;
1245 #ifndef CONTIGMALLOC_WORKS
1247 adapter->rx_mbuf_sz = MJUMPAGESIZE;
1249 else if (adapter->hw.mac.max_frame_size <= 4096)
1250 adapter->rx_mbuf_sz = MJUMPAGESIZE;
1252 adapter->rx_mbuf_sz = MJUM9BYTES;
1254 em_initialize_receive_unit(ctx);
1256 /* Use real VLAN Filter support? */
1257 if (if_getcapenable(ifp) & IFCAP_VLAN_HWTAGGING) {
1258 if (if_getcapenable(ifp) & IFCAP_VLAN_HWFILTER)
1259 /* Use real VLAN Filter support */
1260 em_setup_vlan_hw_support(adapter);
1263 ctrl = E1000_READ_REG(&adapter->hw, E1000_CTRL);
1264 ctrl |= E1000_CTRL_VME;
1265 E1000_WRITE_REG(&adapter->hw, E1000_CTRL, ctrl);
1269 /* Don't lose promiscuous settings */
1270 em_if_set_promisc(ctx, IFF_PROMISC);
1271 e1000_clear_hw_cntrs_base_generic(&adapter->hw);
1273 /* MSI/X configuration for 82574 */
1274 if (adapter->hw.mac.type == e1000_82574) {
1275 int tmp = E1000_READ_REG(&adapter->hw, E1000_CTRL_EXT);
1277 tmp |= E1000_CTRL_EXT_PBA_CLR;
1278 E1000_WRITE_REG(&adapter->hw, E1000_CTRL_EXT, tmp);
1279 /* Set the IVAR - interrupt vector routing. */
1280 E1000_WRITE_REG(&adapter->hw, E1000_IVAR, adapter->ivars);
1281 } else if (adapter->intr_type == IFLIB_INTR_MSIX) /* Set up queue routing */
1282 igb_configure_queues(adapter);
1284 /* this clears any pending interrupts */
1285 E1000_READ_REG(&adapter->hw, E1000_ICR);
1286 E1000_WRITE_REG(&adapter->hw, E1000_ICS, E1000_ICS_LSC);
1288 /* AMT based hardware can now take control from firmware */
1289 if (adapter->has_manage && adapter->has_amt)
1290 em_get_hw_control(adapter);
1292 /* Set Energy Efficient Ethernet */
1293 if (adapter->hw.mac.type >= igb_mac_min &&
1294 adapter->hw.phy.media_type == e1000_media_type_copper) {
1295 if (adapter->hw.mac.type == e1000_i354)
1296 e1000_set_eee_i354(&adapter->hw, TRUE, TRUE);
1298 e1000_set_eee_i350(&adapter->hw, TRUE, TRUE);
1302 /*********************************************************************
1304 * Fast Legacy/MSI Combined Interrupt Service routine
1306 *********************************************************************/
1310 struct adapter *adapter = arg;
1311 if_ctx_t ctx = adapter->ctx;
1314 reg_icr = E1000_READ_REG(&adapter->hw, E1000_ICR);
1316 if (adapter->intr_type != IFLIB_INTR_LEGACY)
1319 if (reg_icr == 0xffffffff)
1320 return FILTER_STRAY;
1322 /* Definitely not our interrupt. */
1324 return FILTER_STRAY;
1327 * Starting with the 82571 chip, bit 31 should be used to
1328 * determine whether the interrupt belongs to us.
1330 if (adapter->hw.mac.type >= e1000_82571 &&
1331 (reg_icr & E1000_ICR_INT_ASSERTED) == 0)
1332 return FILTER_STRAY;
1335 /* Link status change */
1336 if (reg_icr & (E1000_ICR_RXSEQ | E1000_ICR_LSC)) {
1337 adapter->hw.mac.get_link_status = 1;
1338 iflib_admin_intr_deferred(ctx);
1341 if (reg_icr & E1000_ICR_RXO)
1342 adapter->rx_overruns++;
1344 return (FILTER_SCHEDULE_THREAD);
1348 igb_rx_enable_queue(struct adapter *adapter, struct em_rx_queue *rxq)
1350 E1000_WRITE_REG(&adapter->hw, E1000_EIMS, rxq->eims);
1354 em_rx_enable_queue(struct adapter *adapter, struct em_rx_queue *rxq)
1356 E1000_WRITE_REG(&adapter->hw, E1000_IMS, rxq->eims);
1360 igb_tx_enable_queue(struct adapter *adapter, struct em_tx_queue *txq)
1362 E1000_WRITE_REG(&adapter->hw, E1000_EIMS, txq->eims);
1366 em_tx_enable_queue(struct adapter *adapter, struct em_tx_queue *txq)
1368 E1000_WRITE_REG(&adapter->hw, E1000_IMS, txq->eims);
1372 em_if_rx_queue_intr_enable(if_ctx_t ctx, uint16_t rxqid)
1374 struct adapter *adapter = iflib_get_softc(ctx);
1375 struct em_rx_queue *rxq = &adapter->rx_queues[rxqid];
1377 if (adapter->hw.mac.type >= igb_mac_min)
1378 igb_rx_enable_queue(adapter, rxq);
1380 em_rx_enable_queue(adapter, rxq);
1385 em_if_tx_queue_intr_enable(if_ctx_t ctx, uint16_t txqid)
1387 struct adapter *adapter = iflib_get_softc(ctx);
1388 struct em_tx_queue *txq = &adapter->tx_queues[txqid];
1390 if (adapter->hw.mac.type >= igb_mac_min)
1391 igb_tx_enable_queue(adapter, txq);
1393 em_tx_enable_queue(adapter, txq);
1397 /*********************************************************************
1399 * MSIX RX Interrupt Service routine
1401 **********************************************************************/
1403 em_msix_que(void *arg)
1405 struct em_rx_queue *que = arg;
1409 return (FILTER_SCHEDULE_THREAD);
1412 /*********************************************************************
1414 * MSIX Link Fast Interrupt Service routine
1416 **********************************************************************/
1418 em_msix_link(void *arg)
1420 struct adapter *adapter = arg;
1423 ++adapter->link_irq;
1424 MPASS(adapter->hw.back != NULL);
1425 reg_icr = E1000_READ_REG(&adapter->hw, E1000_ICR);
1427 if (reg_icr & E1000_ICR_RXO)
1428 adapter->rx_overruns++;
1430 if (reg_icr & (E1000_ICR_RXSEQ | E1000_ICR_LSC)) {
1431 em_handle_link(adapter->ctx);
1433 E1000_WRITE_REG(&adapter->hw, E1000_IMS,
1434 EM_MSIX_LINK | E1000_IMS_LSC);
1435 if (adapter->hw.mac.type >= igb_mac_min)
1436 E1000_WRITE_REG(&adapter->hw, E1000_EIMS, adapter->link_mask);
1440 * Because we must read the ICR for this interrupt
1441 * it may clear other causes using autoclear, for
1442 * this reason we simply create a soft interrupt
1443 * for all these vectors.
1445 if (reg_icr && adapter->hw.mac.type < igb_mac_min) {
1446 E1000_WRITE_REG(&adapter->hw,
1447 E1000_ICS, adapter->ims);
1450 return (FILTER_HANDLED);
1454 em_handle_link(void *context)
1456 if_ctx_t ctx = context;
1457 struct adapter *adapter = iflib_get_softc(ctx);
1459 adapter->hw.mac.get_link_status = 1;
1460 iflib_admin_intr_deferred(ctx);
1464 /*********************************************************************
1466 * Media Ioctl callback
1468 * This routine is called whenever the user queries the status of
1469 * the interface using ifconfig.
1471 **********************************************************************/
1473 em_if_media_status(if_ctx_t ctx, struct ifmediareq *ifmr)
1475 struct adapter *adapter = iflib_get_softc(ctx);
1476 u_char fiber_type = IFM_1000_SX;
1478 INIT_DEBUGOUT("em_if_media_status: begin");
1480 iflib_admin_intr_deferred(ctx);
1482 ifmr->ifm_status = IFM_AVALID;
1483 ifmr->ifm_active = IFM_ETHER;
1485 if (!adapter->link_active) {
1489 ifmr->ifm_status |= IFM_ACTIVE;
1491 if ((adapter->hw.phy.media_type == e1000_media_type_fiber) ||
1492 (adapter->hw.phy.media_type == e1000_media_type_internal_serdes)) {
1493 if (adapter->hw.mac.type == e1000_82545)
1494 fiber_type = IFM_1000_LX;
1495 ifmr->ifm_active |= fiber_type | IFM_FDX;
1497 switch (adapter->link_speed) {
1499 ifmr->ifm_active |= IFM_10_T;
1502 ifmr->ifm_active |= IFM_100_TX;
1505 ifmr->ifm_active |= IFM_1000_T;
1508 if (adapter->link_duplex == FULL_DUPLEX)
1509 ifmr->ifm_active |= IFM_FDX;
1511 ifmr->ifm_active |= IFM_HDX;
1515 /*********************************************************************
1517 * Media Ioctl callback
1519 * This routine is called when the user changes speed/duplex using
1520 * media/mediopt option with ifconfig.
1522 **********************************************************************/
1524 em_if_media_change(if_ctx_t ctx)
1526 struct adapter *adapter = iflib_get_softc(ctx);
1527 struct ifmedia *ifm = iflib_get_media(ctx);
1529 INIT_DEBUGOUT("em_if_media_change: begin");
1531 if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER)
1534 switch (IFM_SUBTYPE(ifm->ifm_media)) {
1536 adapter->hw.mac.autoneg = DO_AUTO_NEG;
1537 adapter->hw.phy.autoneg_advertised = AUTONEG_ADV_DEFAULT;
1542 adapter->hw.mac.autoneg = DO_AUTO_NEG;
1543 adapter->hw.phy.autoneg_advertised = ADVERTISE_1000_FULL;
1546 adapter->hw.mac.autoneg = FALSE;
1547 adapter->hw.phy.autoneg_advertised = 0;
1548 if ((ifm->ifm_media & IFM_GMASK) == IFM_FDX)
1549 adapter->hw.mac.forced_speed_duplex = ADVERTISE_100_FULL;
1551 adapter->hw.mac.forced_speed_duplex = ADVERTISE_100_HALF;
1554 adapter->hw.mac.autoneg = FALSE;
1555 adapter->hw.phy.autoneg_advertised = 0;
1556 if ((ifm->ifm_media & IFM_GMASK) == IFM_FDX)
1557 adapter->hw.mac.forced_speed_duplex = ADVERTISE_10_FULL;
1559 adapter->hw.mac.forced_speed_duplex = ADVERTISE_10_HALF;
1562 device_printf(adapter->dev, "Unsupported media type\n");
1571 em_if_set_promisc(if_ctx_t ctx, int flags)
1573 struct adapter *adapter = iflib_get_softc(ctx);
1576 em_disable_promisc(ctx);
1578 reg_rctl = E1000_READ_REG(&adapter->hw, E1000_RCTL);
1580 if (flags & IFF_PROMISC) {
1581 reg_rctl |= (E1000_RCTL_UPE | E1000_RCTL_MPE);
1582 /* Turn this on if you want to see bad packets */
1584 reg_rctl |= E1000_RCTL_SBP;
1585 E1000_WRITE_REG(&adapter->hw, E1000_RCTL, reg_rctl);
1586 } else if (flags & IFF_ALLMULTI) {
1587 reg_rctl |= E1000_RCTL_MPE;
1588 reg_rctl &= ~E1000_RCTL_UPE;
1589 E1000_WRITE_REG(&adapter->hw, E1000_RCTL, reg_rctl);
1595 em_disable_promisc(if_ctx_t ctx)
1597 struct adapter *adapter = iflib_get_softc(ctx);
1598 struct ifnet *ifp = iflib_get_ifp(ctx);
1602 reg_rctl = E1000_READ_REG(&adapter->hw, E1000_RCTL);
1603 reg_rctl &= (~E1000_RCTL_UPE);
1604 if (if_getflags(ifp) & IFF_ALLMULTI)
1605 mcnt = MAX_NUM_MULTICAST_ADDRESSES;
1607 mcnt = if_multiaddr_count(ifp, MAX_NUM_MULTICAST_ADDRESSES);
1608 /* Don't disable if in MAX groups */
1609 if (mcnt < MAX_NUM_MULTICAST_ADDRESSES)
1610 reg_rctl &= (~E1000_RCTL_MPE);
1611 reg_rctl &= (~E1000_RCTL_SBP);
1612 E1000_WRITE_REG(&adapter->hw, E1000_RCTL, reg_rctl);
1616 /*********************************************************************
1619 * This routine is called whenever multicast address list is updated.
1621 **********************************************************************/
1624 em_if_multi_set(if_ctx_t ctx)
1626 struct adapter *adapter = iflib_get_softc(ctx);
1627 struct ifnet *ifp = iflib_get_ifp(ctx);
1629 u8 *mta; /* Multicast array memory */
1632 IOCTL_DEBUGOUT("em_set_multi: begin");
1635 bzero(mta, sizeof(u8) * ETH_ADDR_LEN * MAX_NUM_MULTICAST_ADDRESSES);
1637 if (adapter->hw.mac.type == e1000_82542 &&
1638 adapter->hw.revision_id == E1000_REVISION_2) {
1639 reg_rctl = E1000_READ_REG(&adapter->hw, E1000_RCTL);
1640 if (adapter->hw.bus.pci_cmd_word & CMD_MEM_WRT_INVALIDATE)
1641 e1000_pci_clear_mwi(&adapter->hw);
1642 reg_rctl |= E1000_RCTL_RST;
1643 E1000_WRITE_REG(&adapter->hw, E1000_RCTL, reg_rctl);
1647 if_multiaddr_array(ifp, mta, &mcnt, MAX_NUM_MULTICAST_ADDRESSES);
1649 if (mcnt >= MAX_NUM_MULTICAST_ADDRESSES) {
1650 reg_rctl = E1000_READ_REG(&adapter->hw, E1000_RCTL);
1651 reg_rctl |= E1000_RCTL_MPE;
1652 E1000_WRITE_REG(&adapter->hw, E1000_RCTL, reg_rctl);
1654 e1000_update_mc_addr_list(&adapter->hw, mta, mcnt);
1656 if (adapter->hw.mac.type == e1000_82542 &&
1657 adapter->hw.revision_id == E1000_REVISION_2) {
1658 reg_rctl = E1000_READ_REG(&adapter->hw, E1000_RCTL);
1659 reg_rctl &= ~E1000_RCTL_RST;
1660 E1000_WRITE_REG(&adapter->hw, E1000_RCTL, reg_rctl);
1662 if (adapter->hw.bus.pci_cmd_word & CMD_MEM_WRT_INVALIDATE)
1663 e1000_pci_set_mwi(&adapter->hw);
1668 /*********************************************************************
1671 * This routine checks for link status and updates statistics.
1673 **********************************************************************/
1676 em_if_timer(if_ctx_t ctx, uint16_t qid)
1678 struct adapter *adapter = iflib_get_softc(ctx);
1679 struct em_rx_queue *que;
1686 iflib_admin_intr_deferred(ctx);
1687 /* Reset LAA into RAR[0] on 82571 */
1688 if ((adapter->hw.mac.type == e1000_82571) &&
1689 e1000_get_laa_state_82571(&adapter->hw))
1690 e1000_rar_set(&adapter->hw, adapter->hw.mac.addr, 0);
1692 if (adapter->hw.mac.type < em_mac_min)
1693 lem_smartspeed(adapter);
1695 /* Mask to use in the irq trigger */
1696 if (adapter->intr_type == IFLIB_INTR_MSIX) {
1697 for (i = 0, que = adapter->rx_queues; i < adapter->rx_num_queues; i++, que++)
1698 trigger |= que->eims;
1700 trigger = E1000_ICS_RXDMT0;
1706 em_if_update_admin_status(if_ctx_t ctx)
1708 struct adapter *adapter = iflib_get_softc(ctx);
1709 struct e1000_hw *hw = &adapter->hw;
1710 struct ifnet *ifp = iflib_get_ifp(ctx);
1711 device_t dev = iflib_get_dev(ctx);
1712 u32 link_check, thstat, ctrl;
1714 link_check = thstat = ctrl = 0;
1715 /* Get the cached link value or read phy for real */
1716 switch (hw->phy.media_type) {
1717 case e1000_media_type_copper:
1718 if (hw->mac.get_link_status) {
1719 if (hw->mac.type == e1000_pch_spt)
1721 /* Do the work to read phy */
1722 e1000_check_for_link(hw);
1723 link_check = !hw->mac.get_link_status;
1724 if (link_check) /* ESB2 fix */
1725 e1000_cfg_on_link_up(hw);
1730 case e1000_media_type_fiber:
1731 e1000_check_for_link(hw);
1732 link_check = (E1000_READ_REG(hw, E1000_STATUS) &
1735 case e1000_media_type_internal_serdes:
1736 e1000_check_for_link(hw);
1737 link_check = adapter->hw.mac.serdes_has_link;
1739 /* VF device is type_unknown */
1740 case e1000_media_type_unknown:
1741 e1000_check_for_link(hw);
1742 link_check = !hw->mac.get_link_status;
1748 /* Check for thermal downshift or shutdown */
1749 if (hw->mac.type == e1000_i350) {
1750 thstat = E1000_READ_REG(hw, E1000_THSTAT);
1751 ctrl = E1000_READ_REG(hw, E1000_CTRL_EXT);
1754 /* Now check for a transition */
1755 if (link_check && (adapter->link_active == 0)) {
1756 e1000_get_speed_and_duplex(hw, &adapter->link_speed,
1757 &adapter->link_duplex);
1758 /* Check if we must disable SPEED_MODE bit on PCI-E */
1759 if ((adapter->link_speed != SPEED_1000) &&
1760 ((hw->mac.type == e1000_82571) ||
1761 (hw->mac.type == e1000_82572))) {
1763 tarc0 = E1000_READ_REG(hw, E1000_TARC(0));
1764 tarc0 &= ~TARC_SPEED_MODE_BIT;
1765 E1000_WRITE_REG(hw, E1000_TARC(0), tarc0);
1768 device_printf(dev, "Link is up %d Mbps %s\n",
1769 adapter->link_speed,
1770 ((adapter->link_duplex == FULL_DUPLEX) ?
1771 "Full Duplex" : "Half Duplex"));
1772 adapter->link_active = 1;
1773 adapter->smartspeed = 0;
1774 if_setbaudrate(ifp, adapter->link_speed * 1000000);
1775 if ((ctrl & E1000_CTRL_EXT_LINK_MODE_GMII) &&
1776 (thstat & E1000_THSTAT_LINK_THROTTLE))
1777 device_printf(dev, "Link: thermal downshift\n");
1778 /* Delay Link Up for Phy update */
1779 if (((hw->mac.type == e1000_i210) ||
1780 (hw->mac.type == e1000_i211)) &&
1781 (hw->phy.id == I210_I_PHY_ID))
1782 msec_delay(I210_LINK_DELAY);
1783 /* Reset if the media type changed. */
1784 if ((hw->dev_spec._82575.media_changed) &&
1785 (adapter->hw.mac.type >= igb_mac_min)) {
1786 hw->dev_spec._82575.media_changed = false;
1787 adapter->flags |= IGB_MEDIA_RESET;
1790 iflib_link_state_change(ctx, LINK_STATE_UP, ifp->if_baudrate);
1791 printf("Link state changed to up\n");
1792 } else if (!link_check && (adapter->link_active == 1)) {
1793 if_setbaudrate(ifp, 0);
1794 adapter->link_speed = 0;
1795 adapter->link_duplex = 0;
1797 device_printf(dev, "Link is Down\n");
1798 adapter->link_active = 0;
1799 iflib_link_state_change(ctx, LINK_STATE_DOWN, ifp->if_baudrate);
1800 printf("link state changed to down\n");
1802 em_update_stats_counters(adapter);
1804 E1000_WRITE_REG(&adapter->hw, E1000_IMS, EM_MSIX_LINK | E1000_IMS_LSC);
1807 /*********************************************************************
1809 * This routine disables all traffic on the adapter by issuing a
1810 * global reset on the MAC and deallocates TX/RX buffers.
1812 * This routine should always be called with BOTH the CORE
1814 **********************************************************************/
1817 em_if_stop(if_ctx_t ctx)
1819 struct adapter *adapter = iflib_get_softc(ctx);
1821 INIT_DEBUGOUT("em_stop: begin");
1823 e1000_reset_hw(&adapter->hw);
1824 if (adapter->hw.mac.type >= e1000_82544)
1825 E1000_WRITE_REG(&adapter->hw, E1000_WUFC, 0);
1827 e1000_led_off(&adapter->hw);
1828 e1000_cleanup_led(&adapter->hw);
1832 /*********************************************************************
1834 * Determine hardware revision.
1836 **********************************************************************/
1838 em_identify_hardware(if_ctx_t ctx)
1840 device_t dev = iflib_get_dev(ctx);
1841 struct adapter *adapter = iflib_get_softc(ctx);
1843 /* Make sure our PCI config space has the necessary stuff set */
1844 adapter->hw.bus.pci_cmd_word = pci_read_config(dev, PCIR_COMMAND, 2);
1846 /* Save off the information about this board */
1847 adapter->hw.vendor_id = pci_get_vendor(dev);
1848 adapter->hw.device_id = pci_get_device(dev);
1849 adapter->hw.revision_id = pci_read_config(dev, PCIR_REVID, 1);
1850 adapter->hw.subsystem_vendor_id =
1851 pci_read_config(dev, PCIR_SUBVEND_0, 2);
1852 adapter->hw.subsystem_device_id =
1853 pci_read_config(dev, PCIR_SUBDEV_0, 2);
1855 /* Do Shared Code Init and Setup */
1856 if (e1000_set_mac_type(&adapter->hw)) {
1857 device_printf(dev, "Setup init failure\n");
1863 em_allocate_pci_resources(if_ctx_t ctx)
1865 struct adapter *adapter = iflib_get_softc(ctx);
1866 device_t dev = iflib_get_dev(ctx);
1870 adapter->memory = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
1872 if (adapter->memory == NULL) {
1873 device_printf(dev, "Unable to allocate bus resource: memory\n");
1876 adapter->osdep.mem_bus_space_tag = rman_get_bustag(adapter->memory);
1877 adapter->osdep.mem_bus_space_handle =
1878 rman_get_bushandle(adapter->memory);
1879 adapter->hw.hw_addr = (u8 *)&adapter->osdep.mem_bus_space_handle;
1881 /* Only older adapters use IO mapping */
1882 if (adapter->hw.mac.type < em_mac_min &&
1883 adapter->hw.mac.type > e1000_82543) {
1884 /* Figure our where our IO BAR is ? */
1885 for (rid = PCIR_BAR(0); rid < PCIR_CIS;) {
1886 val = pci_read_config(dev, rid, 4);
1887 if (EM_BAR_TYPE(val) == EM_BAR_TYPE_IO) {
1888 adapter->io_rid = rid;
1892 /* check for 64bit BAR */
1893 if (EM_BAR_MEM_TYPE(val) == EM_BAR_MEM_TYPE_64BIT)
1896 if (rid >= PCIR_CIS) {
1897 device_printf(dev, "Unable to locate IO BAR\n");
1900 adapter->ioport = bus_alloc_resource_any(dev,
1901 SYS_RES_IOPORT, &adapter->io_rid, RF_ACTIVE);
1902 if (adapter->ioport == NULL) {
1903 device_printf(dev, "Unable to allocate bus resource: "
1907 adapter->hw.io_base = 0;
1908 adapter->osdep.io_bus_space_tag =
1909 rman_get_bustag(adapter->ioport);
1910 adapter->osdep.io_bus_space_handle =
1911 rman_get_bushandle(adapter->ioport);
1914 adapter->hw.back = &adapter->osdep;
1919 /*********************************************************************
1921 * Setup the MSIX Interrupt handlers
1923 **********************************************************************/
1925 em_if_msix_intr_assign(if_ctx_t ctx, int msix)
1927 struct adapter *adapter = iflib_get_softc(ctx);
1928 struct em_rx_queue *rx_que = adapter->rx_queues;
1929 struct em_tx_queue *tx_que = adapter->tx_queues;
1930 int error, rid, i, vector = 0, rx_vectors;
1933 /* First set up ring resources */
1934 for (i = 0; i < adapter->rx_num_queues; i++, rx_que++, vector++) {
1936 snprintf(buf, sizeof(buf), "rxq%d", i);
1937 error = iflib_irq_alloc_generic(ctx, &rx_que->que_irq, rid, IFLIB_INTR_RXTX, em_msix_que, rx_que, rx_que->me, buf);
1939 device_printf(iflib_get_dev(ctx), "Failed to allocate que int %d err: %d", i, error);
1940 adapter->rx_num_queues = i + 1;
1944 rx_que->msix = vector;
1947 * Set the bit to enable interrupt
1948 * in E1000_IMS -- bits 20 and 21
1949 * are for RX0 and RX1, note this has
1950 * NOTHING to do with the MSIX vector
1952 if (adapter->hw.mac.type == e1000_82574) {
1953 rx_que->eims = 1 << (20 + i);
1954 adapter->ims |= rx_que->eims;
1955 adapter->ivars |= (8 | rx_que->msix) << (i * 4);
1956 } else if (adapter->hw.mac.type == e1000_82575)
1957 rx_que->eims = E1000_EICR_TX_QUEUE0 << vector;
1959 rx_que->eims = 1 << vector;
1961 rx_vectors = vector;
1964 for (i = 0; i < adapter->tx_num_queues; i++, tx_que++, vector++) {
1966 snprintf(buf, sizeof(buf), "txq%d", i);
1967 tx_que = &adapter->tx_queues[i];
1968 iflib_softirq_alloc_generic(ctx,
1969 &adapter->rx_queues[i % adapter->rx_num_queues].que_irq,
1970 IFLIB_INTR_TX, tx_que, tx_que->me, buf);
1972 tx_que->msix = (vector % adapter->tx_num_queues);
1975 * Set the bit to enable interrupt
1976 * in E1000_IMS -- bits 22 and 23
1977 * are for TX0 and TX1, note this has
1978 * NOTHING to do with the MSIX vector
1980 if (adapter->hw.mac.type == e1000_82574) {
1981 tx_que->eims = 1 << (22 + i);
1982 adapter->ims |= tx_que->eims;
1983 adapter->ivars |= (8 | tx_que->msix) << (8 + (i * 4));
1984 } else if (adapter->hw.mac.type == e1000_82575) {
1985 tx_que->eims = E1000_EICR_TX_QUEUE0 << (i % adapter->tx_num_queues);
1987 tx_que->eims = 1 << (i % adapter->tx_num_queues);
1991 /* Link interrupt */
1992 rid = rx_vectors + 1;
1993 error = iflib_irq_alloc_generic(ctx, &adapter->irq, rid, IFLIB_INTR_ADMIN, em_msix_link, adapter, 0, "aq");
1996 device_printf(iflib_get_dev(ctx), "Failed to register admin handler");
1999 adapter->linkvec = rx_vectors;
2000 if (adapter->hw.mac.type < igb_mac_min) {
2001 adapter->ivars |= (8 | rx_vectors) << 16;
2002 adapter->ivars |= 0x80000000;
2006 iflib_irq_free(ctx, &adapter->irq);
2007 rx_que = adapter->rx_queues;
2008 for (int i = 0; i < adapter->rx_num_queues; i++, rx_que++)
2009 iflib_irq_free(ctx, &rx_que->que_irq);
2014 igb_configure_queues(struct adapter *adapter)
2016 struct e1000_hw *hw = &adapter->hw;
2017 struct em_rx_queue *rx_que;
2018 struct em_tx_queue *tx_que;
2019 u32 tmp, ivar = 0, newitr = 0;
2021 /* First turn on RSS capability */
2022 if (adapter->hw.mac.type != e1000_82575)
2023 E1000_WRITE_REG(hw, E1000_GPIE,
2024 E1000_GPIE_MSIX_MODE | E1000_GPIE_EIAME |
2025 E1000_GPIE_PBA | E1000_GPIE_NSICR);
2028 switch (adapter->hw.mac.type) {
2035 case e1000_vfadapt_i350:
2037 for (int i = 0; i < adapter->rx_num_queues; i++) {
2039 ivar = E1000_READ_REG_ARRAY(hw, E1000_IVAR0, index);
2040 rx_que = &adapter->rx_queues[i];
2043 ivar |= (rx_que->msix | E1000_IVAR_VALID) << 16;
2046 ivar |= rx_que->msix | E1000_IVAR_VALID;
2048 E1000_WRITE_REG_ARRAY(hw, E1000_IVAR0, index, ivar);
2051 for (int i = 0; i < adapter->tx_num_queues; i++) {
2053 ivar = E1000_READ_REG_ARRAY(hw, E1000_IVAR0, index);
2054 tx_que = &adapter->tx_queues[i];
2057 ivar |= (tx_que->msix | E1000_IVAR_VALID) << 24;
2060 ivar |= (tx_que->msix | E1000_IVAR_VALID) << 8;
2062 E1000_WRITE_REG_ARRAY(hw, E1000_IVAR0, index, ivar);
2063 adapter->que_mask |= tx_que->eims;
2066 /* And for the link interrupt */
2067 ivar = (adapter->linkvec | E1000_IVAR_VALID) << 8;
2068 adapter->link_mask = 1 << adapter->linkvec;
2069 E1000_WRITE_REG(hw, E1000_IVAR_MISC, ivar);
2073 for (int i = 0; i < adapter->rx_num_queues; i++) {
2074 u32 index = i & 0x7; /* Each IVAR has two entries */
2075 ivar = E1000_READ_REG_ARRAY(hw, E1000_IVAR0, index);
2076 rx_que = &adapter->rx_queues[i];
2079 ivar |= rx_que->msix | E1000_IVAR_VALID;
2082 ivar |= (rx_que->msix | E1000_IVAR_VALID) << 16;
2084 E1000_WRITE_REG_ARRAY(hw, E1000_IVAR0, index, ivar);
2085 adapter->que_mask |= rx_que->eims;
2088 for (int i = 0; i < adapter->tx_num_queues; i++) {
2089 u32 index = i & 0x7; /* Each IVAR has two entries */
2090 ivar = E1000_READ_REG_ARRAY(hw, E1000_IVAR0, index);
2091 tx_que = &adapter->tx_queues[i];
2094 ivar |= (tx_que->msix | E1000_IVAR_VALID) << 8;
2097 ivar |= (tx_que->msix | E1000_IVAR_VALID) << 24;
2099 E1000_WRITE_REG_ARRAY(hw, E1000_IVAR0, index, ivar);
2100 adapter->que_mask |= tx_que->eims;
2103 /* And for the link interrupt */
2104 ivar = (adapter->linkvec | E1000_IVAR_VALID) << 8;
2105 adapter->link_mask = 1 << adapter->linkvec;
2106 E1000_WRITE_REG(hw, E1000_IVAR_MISC, ivar);
2110 /* enable MSI-X support*/
2111 tmp = E1000_READ_REG(hw, E1000_CTRL_EXT);
2112 tmp |= E1000_CTRL_EXT_PBA_CLR;
2113 /* Auto-Mask interrupts upon ICR read. */
2114 tmp |= E1000_CTRL_EXT_EIAME;
2115 tmp |= E1000_CTRL_EXT_IRCA;
2116 E1000_WRITE_REG(hw, E1000_CTRL_EXT, tmp);
2119 for (int i = 0; i < adapter->rx_num_queues; i++) {
2120 rx_que = &adapter->rx_queues[i];
2121 tmp = E1000_EICR_RX_QUEUE0 << i;
2122 tmp |= E1000_EICR_TX_QUEUE0 << i;
2124 E1000_WRITE_REG_ARRAY(hw, E1000_MSIXBM(0),
2126 adapter->que_mask |= rx_que->eims;
2130 E1000_WRITE_REG(hw, E1000_MSIXBM(adapter->linkvec),
2132 adapter->link_mask |= E1000_EIMS_OTHER;
2137 /* Set the starting interrupt rate */
2138 if (em_max_interrupt_rate > 0)
2139 newitr = (4000000 / em_max_interrupt_rate) & 0x7FFC;
2141 if (hw->mac.type == e1000_82575)
2142 newitr |= newitr << 16;
2144 newitr |= E1000_EITR_CNT_IGNR;
2146 for (int i = 0; i < adapter->rx_num_queues; i++) {
2147 rx_que = &adapter->rx_queues[i];
2148 E1000_WRITE_REG(hw, E1000_EITR(rx_que->msix), newitr);
2155 em_free_pci_resources(if_ctx_t ctx)
2157 struct adapter *adapter = iflib_get_softc(ctx);
2158 struct em_rx_queue *que = adapter->rx_queues;
2159 device_t dev = iflib_get_dev(ctx);
2161 /* Release all msix queue resources */
2162 if (adapter->intr_type == IFLIB_INTR_MSIX)
2163 iflib_irq_free(ctx, &adapter->irq);
2165 for (int i = 0; i < adapter->rx_num_queues; i++, que++) {
2166 iflib_irq_free(ctx, &que->que_irq);
2169 /* First release all the interrupt resources */
2170 if (adapter->memory != NULL) {
2171 bus_release_resource(dev, SYS_RES_MEMORY,
2172 PCIR_BAR(0), adapter->memory);
2173 adapter->memory = NULL;
2176 if (adapter->flash != NULL) {
2177 bus_release_resource(dev, SYS_RES_MEMORY,
2178 EM_FLASH, adapter->flash);
2179 adapter->flash = NULL;
2181 if (adapter->ioport != NULL)
2182 bus_release_resource(dev, SYS_RES_IOPORT,
2183 adapter->io_rid, adapter->ioport);
2186 /* Setup MSI or MSI/X */
2188 em_setup_msix(if_ctx_t ctx)
2190 struct adapter *adapter = iflib_get_softc(ctx);
2192 if (adapter->hw.mac.type == e1000_82574) {
2193 em_enable_vectors_82574(ctx);
2198 /*********************************************************************
2200 * Initialize the hardware to a configuration
2201 * as specified by the adapter structure.
2203 **********************************************************************/
2206 lem_smartspeed(struct adapter *adapter)
2210 if (adapter->link_active || (adapter->hw.phy.type != e1000_phy_igp) ||
2211 adapter->hw.mac.autoneg == 0 ||
2212 (adapter->hw.phy.autoneg_advertised & ADVERTISE_1000_FULL) == 0)
2215 if (adapter->smartspeed == 0) {
2216 /* If Master/Slave config fault is asserted twice,
2217 * we assume back-to-back */
2218 e1000_read_phy_reg(&adapter->hw, PHY_1000T_STATUS, &phy_tmp);
2219 if (!(phy_tmp & SR_1000T_MS_CONFIG_FAULT))
2221 e1000_read_phy_reg(&adapter->hw, PHY_1000T_STATUS, &phy_tmp);
2222 if (phy_tmp & SR_1000T_MS_CONFIG_FAULT) {
2223 e1000_read_phy_reg(&adapter->hw,
2224 PHY_1000T_CTRL, &phy_tmp);
2225 if(phy_tmp & CR_1000T_MS_ENABLE) {
2226 phy_tmp &= ~CR_1000T_MS_ENABLE;
2227 e1000_write_phy_reg(&adapter->hw,
2228 PHY_1000T_CTRL, phy_tmp);
2229 adapter->smartspeed++;
2230 if(adapter->hw.mac.autoneg &&
2231 !e1000_copper_link_autoneg(&adapter->hw) &&
2232 !e1000_read_phy_reg(&adapter->hw,
2233 PHY_CONTROL, &phy_tmp)) {
2234 phy_tmp |= (MII_CR_AUTO_NEG_EN |
2235 MII_CR_RESTART_AUTO_NEG);
2236 e1000_write_phy_reg(&adapter->hw,
2237 PHY_CONTROL, phy_tmp);
2242 } else if(adapter->smartspeed == EM_SMARTSPEED_DOWNSHIFT) {
2243 /* If still no link, perhaps using 2/3 pair cable */
2244 e1000_read_phy_reg(&adapter->hw, PHY_1000T_CTRL, &phy_tmp);
2245 phy_tmp |= CR_1000T_MS_ENABLE;
2246 e1000_write_phy_reg(&adapter->hw, PHY_1000T_CTRL, phy_tmp);
2247 if(adapter->hw.mac.autoneg &&
2248 !e1000_copper_link_autoneg(&adapter->hw) &&
2249 !e1000_read_phy_reg(&adapter->hw, PHY_CONTROL, &phy_tmp)) {
2250 phy_tmp |= (MII_CR_AUTO_NEG_EN |
2251 MII_CR_RESTART_AUTO_NEG);
2252 e1000_write_phy_reg(&adapter->hw, PHY_CONTROL, phy_tmp);
2255 /* Restart process after EM_SMARTSPEED_MAX iterations */
2256 if(adapter->smartspeed++ == EM_SMARTSPEED_MAX)
2257 adapter->smartspeed = 0;
2260 /*********************************************************************
2262 * Initialize the DMA Coalescing feature
2264 **********************************************************************/
2266 igb_init_dmac(struct adapter *adapter, u32 pba)
2268 device_t dev = adapter->dev;
2269 struct e1000_hw *hw = &adapter->hw;
2270 u32 dmac, reg = ~E1000_DMACR_DMAC_EN;
2274 if (hw->mac.type == e1000_i211)
2277 max_frame_size = adapter->shared->isc_max_frame_size;
2278 if (hw->mac.type > e1000_82580) {
2280 if (adapter->dmac == 0) { /* Disabling it */
2281 E1000_WRITE_REG(hw, E1000_DMACR, reg);
2284 device_printf(dev, "DMA Coalescing enabled\n");
2286 /* Set starting threshold */
2287 E1000_WRITE_REG(hw, E1000_DMCTXTH, 0);
2289 hwm = 64 * pba - max_frame_size / 16;
2290 if (hwm < 64 * (pba - 6))
2291 hwm = 64 * (pba - 6);
2292 reg = E1000_READ_REG(hw, E1000_FCRTC);
2293 reg &= ~E1000_FCRTC_RTH_COAL_MASK;
2294 reg |= ((hwm << E1000_FCRTC_RTH_COAL_SHIFT)
2295 & E1000_FCRTC_RTH_COAL_MASK);
2296 E1000_WRITE_REG(hw, E1000_FCRTC, reg);
2299 dmac = pba - max_frame_size / 512;
2300 if (dmac < pba - 10)
2302 reg = E1000_READ_REG(hw, E1000_DMACR);
2303 reg &= ~E1000_DMACR_DMACTHR_MASK;
2304 reg = ((dmac << E1000_DMACR_DMACTHR_SHIFT)
2305 & E1000_DMACR_DMACTHR_MASK);
2307 /* transition to L0x or L1 if available..*/
2308 reg |= (E1000_DMACR_DMAC_EN | E1000_DMACR_DMAC_LX_MASK);
2310 /* Check if status is 2.5Gb backplane connection
2311 * before configuration of watchdog timer, which is
2312 * in msec values in 12.8usec intervals
2313 * watchdog timer= msec values in 32usec intervals
2314 * for non 2.5Gb connection
2316 if (hw->mac.type == e1000_i354) {
2317 int status = E1000_READ_REG(hw, E1000_STATUS);
2318 if ((status & E1000_STATUS_2P5_SKU) &&
2319 (!(status & E1000_STATUS_2P5_SKU_OVER)))
2320 reg |= ((adapter->dmac * 5) >> 6);
2322 reg |= (adapter->dmac >> 5);
2324 reg |= (adapter->dmac >> 5);
2327 E1000_WRITE_REG(hw, E1000_DMACR, reg);
2329 E1000_WRITE_REG(hw, E1000_DMCRTRH, 0);
2331 /* Set the interval before transition */
2332 reg = E1000_READ_REG(hw, E1000_DMCTLX);
2333 if (hw->mac.type == e1000_i350)
2334 reg |= IGB_DMCTLX_DCFLUSH_DIS;
2336 ** in 2.5Gb connection, TTLX unit is 0.4 usec
2337 ** which is 0x4*2 = 0xA. But delay is still 4 usec
2339 if (hw->mac.type == e1000_i354) {
2340 int status = E1000_READ_REG(hw, E1000_STATUS);
2341 if ((status & E1000_STATUS_2P5_SKU) &&
2342 (!(status & E1000_STATUS_2P5_SKU_OVER)))
2350 E1000_WRITE_REG(hw, E1000_DMCTLX, reg);
2352 /* free space in tx packet buffer to wake from DMA coal */
2353 E1000_WRITE_REG(hw, E1000_DMCTXTH, (IGB_TXPBSIZE -
2354 (2 * max_frame_size)) >> 6);
2356 /* make low power state decision controlled by DMA coal */
2357 reg = E1000_READ_REG(hw, E1000_PCIEMISC);
2358 reg &= ~E1000_PCIEMISC_LX_DECISION;
2359 E1000_WRITE_REG(hw, E1000_PCIEMISC, reg);
2361 } else if (hw->mac.type == e1000_82580) {
2362 u32 reg = E1000_READ_REG(hw, E1000_PCIEMISC);
2363 E1000_WRITE_REG(hw, E1000_PCIEMISC,
2364 reg & ~E1000_PCIEMISC_LX_DECISION);
2365 E1000_WRITE_REG(hw, E1000_DMACR, 0);
2370 em_reset(if_ctx_t ctx)
2372 device_t dev = iflib_get_dev(ctx);
2373 struct adapter *adapter = iflib_get_softc(ctx);
2374 struct ifnet *ifp = iflib_get_ifp(ctx);
2375 struct e1000_hw *hw = &adapter->hw;
2379 INIT_DEBUGOUT("em_reset: begin");
2380 /* Let the firmware know the OS is in control */
2381 em_get_hw_control(adapter);
2383 /* Set up smart power down as default off on newer adapters. */
2384 if (!em_smart_pwr_down && (hw->mac.type == e1000_82571 ||
2385 hw->mac.type == e1000_82572)) {
2388 /* Speed up time to link by disabling smart power down. */
2389 e1000_read_phy_reg(hw, IGP02E1000_PHY_POWER_MGMT, &phy_tmp);
2390 phy_tmp &= ~IGP02E1000_PM_SPD;
2391 e1000_write_phy_reg(hw, IGP02E1000_PHY_POWER_MGMT, phy_tmp);
2395 * Packet Buffer Allocation (PBA)
2396 * Writing PBA sets the receive portion of the buffer
2397 * the remainder is used for the transmit buffer.
2399 switch (hw->mac.type) {
2400 /* Total Packet Buffer on these is 48K */
2403 case e1000_80003es2lan:
2404 pba = E1000_PBA_32K; /* 32K for Rx, 16K for Tx */
2406 case e1000_82573: /* 82573: Total Packet Buffer is 32K */
2407 pba = E1000_PBA_12K; /* 12K for Rx, 20K for Tx */
2411 pba = E1000_PBA_20K; /* 20K for Rx, 20K for Tx */
2417 case e1000_ich10lan:
2418 /* Boost Receive side for jumbo frames */
2419 if (adapter->hw.mac.max_frame_size > 4096)
2420 pba = E1000_PBA_14K;
2422 pba = E1000_PBA_10K;
2429 pba = E1000_PBA_26K;
2432 pba = E1000_PBA_32K;
2436 pba = E1000_READ_REG(hw, E1000_RXPBS);
2437 pba &= E1000_RXPBS_SIZE_MASK_82576;
2442 case e1000_vfadapt_i350:
2443 pba = E1000_READ_REG(hw, E1000_RXPBS);
2444 pba = e1000_rxpbs_adjust_82580(pba);
2448 pba = E1000_PBA_34K;
2451 if (adapter->hw.mac.max_frame_size > 8192)
2452 pba = E1000_PBA_40K; /* 40K for Rx, 24K for Tx */
2454 pba = E1000_PBA_48K; /* 48K for Rx, 16K for Tx */
2457 /* Special needs in case of Jumbo frames */
2458 if ((hw->mac.type == e1000_82575) && (ifp->if_mtu > ETHERMTU)) {
2459 u32 tx_space, min_tx, min_rx;
2460 pba = E1000_READ_REG(hw, E1000_PBA);
2461 tx_space = pba >> 16;
2463 min_tx = (adapter->hw.mac.max_frame_size +
2464 sizeof(struct e1000_tx_desc) - ETHERNET_FCS_SIZE) * 2;
2465 min_tx = roundup2(min_tx, 1024);
2467 min_rx = adapter->hw.mac.max_frame_size;
2468 min_rx = roundup2(min_rx, 1024);
2470 if (tx_space < min_tx &&
2471 ((min_tx - tx_space) < pba)) {
2472 pba = pba - (min_tx - tx_space);
2474 * if short on rx space, rx wins
2475 * and must trump tx adjustment
2480 E1000_WRITE_REG(hw, E1000_PBA, pba);
2483 if (hw->mac.type < igb_mac_min)
2484 E1000_WRITE_REG(&adapter->hw, E1000_PBA, pba);
2486 INIT_DEBUGOUT1("em_reset: pba=%dK",pba);
2489 * These parameters control the automatic generation (Tx) and
2490 * response (Rx) to Ethernet PAUSE frames.
2491 * - High water mark should allow for at least two frames to be
2492 * received after sending an XOFF.
2493 * - Low water mark works best when it is very near the high water mark.
2494 * This allows the receiver to restart by sending XON when it has
2495 * drained a bit. Here we use an arbitrary value of 1500 which will
2496 * restart after one full frame is pulled from the buffer. There
2497 * could be several smaller frames in the buffer and if so they will
2498 * not trigger the XON until their total number reduces the buffer
2500 * - The pause time is fairly large at 1000 x 512ns = 512 usec.
2502 rx_buffer_size = (pba & 0xffff) << 10;
2503 hw->fc.high_water = rx_buffer_size -
2504 roundup2(adapter->hw.mac.max_frame_size, 1024);
2505 hw->fc.low_water = hw->fc.high_water - 1500;
2507 if (adapter->fc) /* locally set flow control value? */
2508 hw->fc.requested_mode = adapter->fc;
2510 hw->fc.requested_mode = e1000_fc_full;
2512 if (hw->mac.type == e1000_80003es2lan)
2513 hw->fc.pause_time = 0xFFFF;
2515 hw->fc.pause_time = EM_FC_PAUSE_TIME;
2517 hw->fc.send_xon = TRUE;
2519 /* Device specific overrides/settings */
2520 switch (hw->mac.type) {
2522 /* Workaround: no TX flow ctrl for PCH */
2523 hw->fc.requested_mode = e1000_fc_rx_pause;
2524 hw->fc.pause_time = 0xFFFF; /* override */
2525 if (if_getmtu(ifp) > ETHERMTU) {
2526 hw->fc.high_water = 0x3500;
2527 hw->fc.low_water = 0x1500;
2529 hw->fc.high_water = 0x5000;
2530 hw->fc.low_water = 0x3000;
2532 hw->fc.refresh_time = 0x1000;
2538 hw->fc.high_water = 0x5C20;
2539 hw->fc.low_water = 0x5048;
2540 hw->fc.pause_time = 0x0650;
2541 hw->fc.refresh_time = 0x0400;
2542 /* Jumbos need adjusted PBA */
2543 if (if_getmtu(ifp) > ETHERMTU)
2544 E1000_WRITE_REG(hw, E1000_PBA, 12);
2546 E1000_WRITE_REG(hw, E1000_PBA, 26);
2550 /* 8-byte granularity */
2551 hw->fc.low_water = hw->fc.high_water - 8;
2559 case e1000_vfadapt_i350:
2560 /* 16-byte granularity */
2561 hw->fc.low_water = hw->fc.high_water - 16;
2564 case e1000_ich10lan:
2565 if (if_getmtu(ifp) > ETHERMTU) {
2566 hw->fc.high_water = 0x2800;
2567 hw->fc.low_water = hw->fc.high_water - 8;
2572 if (hw->mac.type == e1000_80003es2lan)
2573 hw->fc.pause_time = 0xFFFF;
2577 /* Issue a global reset */
2579 if (adapter->hw.mac.type >= igb_mac_min) {
2580 E1000_WRITE_REG(hw, E1000_WUC, 0);
2582 E1000_WRITE_REG(hw, E1000_WUFC, 0);
2583 em_disable_aspm(adapter);
2585 if (adapter->flags & IGB_MEDIA_RESET) {
2586 e1000_setup_init_funcs(hw, TRUE);
2587 e1000_get_bus_info(hw);
2588 adapter->flags &= ~IGB_MEDIA_RESET;
2591 if (e1000_init_hw(hw) < 0) {
2592 device_printf(dev, "Hardware Initialization Failed\n");
2595 if (adapter->hw.mac.type >= igb_mac_min)
2596 igb_init_dmac(adapter, pba);
2598 E1000_WRITE_REG(hw, E1000_VET, ETHERTYPE_VLAN);
2599 e1000_get_phy_info(hw);
2600 e1000_check_for_link(hw);
2603 #define RSSKEYLEN 10
2605 em_initialize_rss_mapping(struct adapter *adapter)
2607 uint8_t rss_key[4 * RSSKEYLEN];
2609 struct e1000_hw *hw = &adapter->hw;
2615 arc4rand(rss_key, sizeof(rss_key), 0);
2616 for (i = 0; i < RSSKEYLEN; ++i) {
2619 rssrk = EM_RSSRK_VAL(rss_key, i);
2620 E1000_WRITE_REG(hw,E1000_RSSRK(i), rssrk);
2624 * Configure RSS redirect table in following fashion:
2625 * (hash & ring_cnt_mask) == rdr_table[(hash & rdr_table_mask)]
2627 for (i = 0; i < sizeof(reta); ++i) {
2630 q = (i % adapter->rx_num_queues) << 7;
2631 reta |= q << (8 * i);
2634 for (i = 0; i < 32; ++i)
2635 E1000_WRITE_REG(hw, E1000_RETA(i), reta);
2637 E1000_WRITE_REG(hw, E1000_MRQC, E1000_MRQC_RSS_ENABLE_2Q |
2638 E1000_MRQC_RSS_FIELD_IPV4_TCP |
2639 E1000_MRQC_RSS_FIELD_IPV4 |
2640 E1000_MRQC_RSS_FIELD_IPV6_TCP_EX |
2641 E1000_MRQC_RSS_FIELD_IPV6_EX |
2642 E1000_MRQC_RSS_FIELD_IPV6);
2647 igb_initialize_rss_mapping(struct adapter *adapter)
2649 struct e1000_hw *hw = &adapter->hw;
2653 u32 rss_key[10], mrqc, shift = 0;
2656 if (adapter->hw.mac.type == e1000_82575)
2660 * The redirection table controls which destination
2661 * queue each bucket redirects traffic to.
2662 * Each DWORD represents four queues, with the LSB
2663 * being the first queue in the DWORD.
2665 * This just allocates buckets to queues using round-robin
2668 * NOTE: It Just Happens to line up with the default
2669 * RSS allocation method.
2672 /* Warning FM follows */
2674 for (i = 0; i < 128; i++) {
2676 queue_id = rss_get_indirection_to_bucket(i);
2678 * If we have more queues than buckets, we'll
2679 * end up mapping buckets to a subset of the
2682 * If we have more buckets than queues, we'll
2683 * end up instead assigning multiple buckets
2686 * Both are suboptimal, but we need to handle
2687 * the case so we don't go out of bounds
2688 * indexing arrays and such.
2690 queue_id = queue_id % adapter->rx_num_queues;
2692 queue_id = (i % adapter->rx_num_queues);
2694 /* Adjust if required */
2695 queue_id = queue_id << shift;
2698 * The low 8 bits are for hash value (n+0);
2699 * The next 8 bits are for hash value (n+1), etc.
2702 reta = reta | ( ((uint32_t) queue_id) << 24);
2704 E1000_WRITE_REG(hw, E1000_RETA(i >> 2), reta);
2709 /* Now fill in hash table */
2712 * MRQC: Multiple Receive Queues Command
2713 * Set queuing to RSS control, number depends on the device.
2715 mrqc = E1000_MRQC_ENABLE_RSS_8Q;
2718 /* XXX ew typecasting */
2719 rss_getkey((uint8_t *) &rss_key);
2721 arc4rand(&rss_key, sizeof(rss_key), 0);
2723 for (i = 0; i < 10; i++)
2724 E1000_WRITE_REG_ARRAY(hw, E1000_RSSRK(0), i, rss_key[i]);
2727 * Configure the RSS fields to hash upon.
2729 mrqc |= (E1000_MRQC_RSS_FIELD_IPV4 |
2730 E1000_MRQC_RSS_FIELD_IPV4_TCP);
2731 mrqc |= (E1000_MRQC_RSS_FIELD_IPV6 |
2732 E1000_MRQC_RSS_FIELD_IPV6_TCP);
2733 mrqc |=( E1000_MRQC_RSS_FIELD_IPV4_UDP |
2734 E1000_MRQC_RSS_FIELD_IPV6_UDP);
2735 mrqc |=( E1000_MRQC_RSS_FIELD_IPV6_UDP_EX |
2736 E1000_MRQC_RSS_FIELD_IPV6_TCP_EX);
2738 E1000_WRITE_REG(hw, E1000_MRQC, mrqc);
2741 /*********************************************************************
2743 * Setup networking device structure and register an interface.
2745 **********************************************************************/
2747 em_setup_interface(if_ctx_t ctx)
2749 struct ifnet *ifp = iflib_get_ifp(ctx);
2750 struct adapter *adapter = iflib_get_softc(ctx);
2751 if_softc_ctx_t scctx = adapter->shared;
2754 INIT_DEBUGOUT("em_setup_interface: begin");
2756 /* TSO parameters */
2757 if_sethwtsomax(ifp, IP_MAXPACKET);
2758 /* Take m_pullup(9)'s in em_xmit() w/ TSO into acount. */
2759 if_sethwtsomaxsegcount(ifp, EM_MAX_SCATTER - 5);
2760 if_sethwtsomaxsegsize(ifp, EM_TSO_SEG_SIZE);
2763 if (adapter->tx_num_queues == 1) {
2764 if_setsendqlen(ifp, scctx->isc_ntxd[0] - 1);
2765 if_setsendqready(ifp);
2768 cap = IFCAP_HWCSUM | IFCAP_VLAN_HWCSUM | IFCAP_TSO4;
2769 cap |= IFCAP_VLAN_HWTAGGING | IFCAP_VLAN_HWTSO | IFCAP_VLAN_MTU;
2772 * Tell the upper layer(s) we
2773 * support full VLAN capability
2775 if_setifheaderlen(ifp, sizeof(struct ether_vlan_header));
2776 if_setcapabilitiesbit(ifp, cap, 0);
2779 * Don't turn this on by default, if vlans are
2780 * created on another pseudo device (eg. lagg)
2781 * then vlan events are not passed thru, breaking
2782 * operation, but with HW FILTER off it works. If
2783 * using vlans directly on the em driver you can
2784 * enable this and get full hardware tag filtering.
2786 if_setcapabilitiesbit(ifp, IFCAP_VLAN_HWFILTER,0);
2788 /* Enable only WOL MAGIC by default */
2790 if_setcapenablebit(ifp, IFCAP_WOL_MAGIC,
2791 IFCAP_WOL_MCAST| IFCAP_WOL_UCAST);
2793 if_setcapenablebit(ifp, 0, IFCAP_WOL_MAGIC |
2794 IFCAP_WOL_MCAST| IFCAP_WOL_UCAST);
2798 * Specify the media types supported by this adapter and register
2799 * callbacks to update media and link information
2801 if ((adapter->hw.phy.media_type == e1000_media_type_fiber) ||
2802 (adapter->hw.phy.media_type == e1000_media_type_internal_serdes)) {
2803 u_char fiber_type = IFM_1000_SX; /* default type */
2805 if (adapter->hw.mac.type == e1000_82545)
2806 fiber_type = IFM_1000_LX;
2807 ifmedia_add(adapter->media, IFM_ETHER | fiber_type | IFM_FDX, 0, NULL);
2808 ifmedia_add(adapter->media, IFM_ETHER | fiber_type, 0, NULL);
2810 ifmedia_add(adapter->media, IFM_ETHER | IFM_10_T, 0, NULL);
2811 ifmedia_add(adapter->media, IFM_ETHER | IFM_10_T | IFM_FDX, 0, NULL);
2812 ifmedia_add(adapter->media, IFM_ETHER | IFM_100_TX, 0, NULL);
2813 ifmedia_add(adapter->media, IFM_ETHER | IFM_100_TX | IFM_FDX, 0, NULL);
2814 if (adapter->hw.phy.type != e1000_phy_ife) {
2815 ifmedia_add(adapter->media, IFM_ETHER | IFM_1000_T | IFM_FDX, 0, NULL);
2816 ifmedia_add(adapter->media, IFM_ETHER | IFM_1000_T, 0, NULL);
2819 ifmedia_add(adapter->media, IFM_ETHER | IFM_AUTO, 0, NULL);
2820 ifmedia_set(adapter->media, IFM_ETHER | IFM_AUTO);
2825 em_if_tx_queues_alloc(if_ctx_t ctx, caddr_t *vaddrs, uint64_t *paddrs, int ntxqs, int ntxqsets)
2827 struct adapter *adapter = iflib_get_softc(ctx);
2828 if_softc_ctx_t scctx = adapter->shared;
2829 int error = E1000_SUCCESS;
2830 struct em_tx_queue *que;
2833 MPASS(adapter->tx_num_queues > 0);
2834 MPASS(adapter->tx_num_queues == ntxqsets);
2836 /* First allocate the top level queue structs */
2837 if (!(adapter->tx_queues =
2838 (struct em_tx_queue *) malloc(sizeof(struct em_tx_queue) *
2839 adapter->tx_num_queues, M_DEVBUF, M_NOWAIT | M_ZERO))) {
2840 device_printf(iflib_get_dev(ctx), "Unable to allocate queue memory\n");
2844 for (i = 0, que = adapter->tx_queues; i < adapter->tx_num_queues; i++, que++) {
2845 /* Set up some basics */
2847 struct tx_ring *txr = &que->txr;
2848 txr->adapter = que->adapter = adapter;
2849 que->me = txr->me = i;
2851 /* Allocate report status array */
2852 if (!(txr->tx_rsq = (qidx_t *) malloc(sizeof(qidx_t) * scctx->isc_ntxd[0], M_DEVBUF, M_NOWAIT | M_ZERO))) {
2853 device_printf(iflib_get_dev(ctx), "failed to allocate rs_idxs memory\n");
2857 for (j = 0; j < scctx->isc_ntxd[0]; j++)
2858 txr->tx_rsq[j] = QIDX_INVALID;
2859 /* get the virtual and physical address of the hardware queues */
2860 txr->tx_base = (struct e1000_tx_desc *)vaddrs[i*ntxqs];
2861 txr->tx_paddr = paddrs[i*ntxqs];
2864 device_printf(iflib_get_dev(ctx), "allocated for %d tx_queues\n", adapter->tx_num_queues);
2867 em_if_queues_free(ctx);
2872 em_if_rx_queues_alloc(if_ctx_t ctx, caddr_t *vaddrs, uint64_t *paddrs, int nrxqs, int nrxqsets)
2874 struct adapter *adapter = iflib_get_softc(ctx);
2875 int error = E1000_SUCCESS;
2876 struct em_rx_queue *que;
2879 MPASS(adapter->rx_num_queues > 0);
2880 MPASS(adapter->rx_num_queues == nrxqsets);
2882 /* First allocate the top level queue structs */
2883 if (!(adapter->rx_queues =
2884 (struct em_rx_queue *) malloc(sizeof(struct em_rx_queue) *
2885 adapter->rx_num_queues, M_DEVBUF, M_NOWAIT | M_ZERO))) {
2886 device_printf(iflib_get_dev(ctx), "Unable to allocate queue memory\n");
2891 for (i = 0, que = adapter->rx_queues; i < nrxqsets; i++, que++) {
2892 /* Set up some basics */
2893 struct rx_ring *rxr = &que->rxr;
2894 rxr->adapter = que->adapter = adapter;
2896 que->me = rxr->me = i;
2898 /* get the virtual and physical address of the hardware queues */
2899 rxr->rx_base = (union e1000_rx_desc_extended *)vaddrs[i*nrxqs];
2900 rxr->rx_paddr = paddrs[i*nrxqs];
2903 device_printf(iflib_get_dev(ctx), "allocated for %d rx_queues\n", adapter->rx_num_queues);
2907 em_if_queues_free(ctx);
2912 em_if_queues_free(if_ctx_t ctx)
2914 struct adapter *adapter = iflib_get_softc(ctx);
2915 struct em_tx_queue *tx_que = adapter->tx_queues;
2916 struct em_rx_queue *rx_que = adapter->rx_queues;
2918 if (tx_que != NULL) {
2919 for (int i = 0; i < adapter->tx_num_queues; i++, tx_que++) {
2920 struct tx_ring *txr = &tx_que->txr;
2921 if (txr->tx_rsq == NULL)
2924 free(txr->tx_rsq, M_DEVBUF);
2927 free(adapter->tx_queues, M_DEVBUF);
2928 adapter->tx_queues = NULL;
2931 if (rx_que != NULL) {
2932 free(adapter->rx_queues, M_DEVBUF);
2933 adapter->rx_queues = NULL;
2936 em_release_hw_control(adapter);
2938 if (adapter->mta != NULL) {
2939 free(adapter->mta, M_DEVBUF);
2943 /*********************************************************************
2945 * Enable transmit unit.
2947 **********************************************************************/
2949 em_initialize_transmit_unit(if_ctx_t ctx)
2951 struct adapter *adapter = iflib_get_softc(ctx);
2952 if_softc_ctx_t scctx = adapter->shared;
2953 struct em_tx_queue *que;
2954 struct tx_ring *txr;
2955 struct e1000_hw *hw = &adapter->hw;
2956 u32 tctl, txdctl = 0, tarc, tipg = 0;
2958 INIT_DEBUGOUT("em_initialize_transmit_unit: begin");
2960 for (int i = 0; i < adapter->tx_num_queues; i++, txr++) {
2964 que = &adapter->tx_queues[i];
2966 bus_addr = txr->tx_paddr;
2968 /* Clear checksum offload context. */
2969 offp = (caddr_t)&txr->csum_flags;
2970 endp = (caddr_t)(txr + 1);
2971 bzero(offp, endp - offp);
2973 /* Base and Len of TX Ring */
2974 E1000_WRITE_REG(hw, E1000_TDLEN(i),
2975 scctx->isc_ntxd[0] * sizeof(struct e1000_tx_desc));
2976 E1000_WRITE_REG(hw, E1000_TDBAH(i),
2977 (u32)(bus_addr >> 32));
2978 E1000_WRITE_REG(hw, E1000_TDBAL(i),
2980 /* Init the HEAD/TAIL indices */
2981 E1000_WRITE_REG(hw, E1000_TDT(i), 0);
2982 E1000_WRITE_REG(hw, E1000_TDH(i), 0);
2984 HW_DEBUGOUT2("Base = %x, Length = %x\n",
2985 E1000_READ_REG(&adapter->hw, E1000_TDBAL(i)),
2986 E1000_READ_REG(&adapter->hw, E1000_TDLEN(i)));
2988 txdctl = 0; /* clear txdctl */
2989 txdctl |= 0x1f; /* PTHRESH */
2990 txdctl |= 1 << 8; /* HTHRESH */
2991 txdctl |= 1 << 16;/* WTHRESH */
2992 txdctl |= 1 << 22; /* Reserved bit 22 must always be 1 */
2993 txdctl |= E1000_TXDCTL_GRAN;
2994 txdctl |= 1 << 25; /* LWTHRESH */
2996 E1000_WRITE_REG(hw, E1000_TXDCTL(i), txdctl);
2999 /* Set the default values for the Tx Inter Packet Gap timer */
3000 switch (adapter->hw.mac.type) {
3001 case e1000_80003es2lan:
3002 tipg = DEFAULT_82543_TIPG_IPGR1;
3003 tipg |= DEFAULT_80003ES2LAN_TIPG_IPGR2 <<
3004 E1000_TIPG_IPGR2_SHIFT;
3007 tipg = DEFAULT_82542_TIPG_IPGT;
3008 tipg |= DEFAULT_82542_TIPG_IPGR1 << E1000_TIPG_IPGR1_SHIFT;
3009 tipg |= DEFAULT_82542_TIPG_IPGR2 << E1000_TIPG_IPGR2_SHIFT;
3012 if ((adapter->hw.phy.media_type == e1000_media_type_fiber) ||
3013 (adapter->hw.phy.media_type ==
3014 e1000_media_type_internal_serdes))
3015 tipg = DEFAULT_82543_TIPG_IPGT_FIBER;
3017 tipg = DEFAULT_82543_TIPG_IPGT_COPPER;
3018 tipg |= DEFAULT_82543_TIPG_IPGR1 << E1000_TIPG_IPGR1_SHIFT;
3019 tipg |= DEFAULT_82543_TIPG_IPGR2 << E1000_TIPG_IPGR2_SHIFT;
3022 E1000_WRITE_REG(&adapter->hw, E1000_TIPG, tipg);
3023 E1000_WRITE_REG(&adapter->hw, E1000_TIDV, adapter->tx_int_delay.value);
3025 if(adapter->hw.mac.type >= e1000_82540)
3026 E1000_WRITE_REG(&adapter->hw, E1000_TADV,
3027 adapter->tx_abs_int_delay.value);
3029 if ((adapter->hw.mac.type == e1000_82571) ||
3030 (adapter->hw.mac.type == e1000_82572)) {
3031 tarc = E1000_READ_REG(&adapter->hw, E1000_TARC(0));
3032 tarc |= TARC_SPEED_MODE_BIT;
3033 E1000_WRITE_REG(&adapter->hw, E1000_TARC(0), tarc);
3034 } else if (adapter->hw.mac.type == e1000_80003es2lan) {
3035 /* errata: program both queues to unweighted RR */
3036 tarc = E1000_READ_REG(&adapter->hw, E1000_TARC(0));
3038 E1000_WRITE_REG(&adapter->hw, E1000_TARC(0), tarc);
3039 tarc = E1000_READ_REG(&adapter->hw, E1000_TARC(1));
3041 E1000_WRITE_REG(&adapter->hw, E1000_TARC(1), tarc);
3042 } else if (adapter->hw.mac.type == e1000_82574) {
3043 tarc = E1000_READ_REG(&adapter->hw, E1000_TARC(0));
3044 tarc |= TARC_ERRATA_BIT;
3045 if ( adapter->tx_num_queues > 1) {
3046 tarc |= (TARC_COMPENSATION_MODE | TARC_MQ_FIX);
3047 E1000_WRITE_REG(&adapter->hw, E1000_TARC(0), tarc);
3048 E1000_WRITE_REG(&adapter->hw, E1000_TARC(1), tarc);
3050 E1000_WRITE_REG(&adapter->hw, E1000_TARC(0), tarc);
3053 if (adapter->tx_int_delay.value > 0)
3054 adapter->txd_cmd |= E1000_TXD_CMD_IDE;
3056 /* Program the Transmit Control Register */
3057 tctl = E1000_READ_REG(&adapter->hw, E1000_TCTL);
3058 tctl &= ~E1000_TCTL_CT;
3059 tctl |= (E1000_TCTL_PSP | E1000_TCTL_RTLC | E1000_TCTL_EN |
3060 (E1000_COLLISION_THRESHOLD << E1000_CT_SHIFT));
3062 if (adapter->hw.mac.type >= e1000_82571)
3063 tctl |= E1000_TCTL_MULR;
3065 /* This write will effectively turn on the transmit unit. */
3066 E1000_WRITE_REG(&adapter->hw, E1000_TCTL, tctl);
3068 /* SPT and KBL errata workarounds */
3069 if (hw->mac.type == e1000_pch_spt) {
3071 reg = E1000_READ_REG(hw, E1000_IOSFPC);
3072 reg |= E1000_RCTL_RDMTS_HEX;
3073 E1000_WRITE_REG(hw, E1000_IOSFPC, reg);
3074 /* i218-i219 Specification Update 1.5.4.5 */
3075 reg = E1000_READ_REG(hw, E1000_TARC(0));
3076 reg &= ~E1000_TARC0_CB_MULTIQ_3_REQ;
3077 reg |= E1000_TARC0_CB_MULTIQ_2_REQ;
3078 E1000_WRITE_REG(hw, E1000_TARC(0), reg);
3082 /*********************************************************************
3084 * Enable receive unit.
3086 **********************************************************************/
3089 em_initialize_receive_unit(if_ctx_t ctx)
3091 struct adapter *adapter = iflib_get_softc(ctx);
3092 if_softc_ctx_t scctx = adapter->shared;
3093 struct ifnet *ifp = iflib_get_ifp(ctx);
3094 struct e1000_hw *hw = &adapter->hw;
3095 struct em_rx_queue *que;
3097 u32 rctl, rxcsum, rfctl;
3099 INIT_DEBUGOUT("em_initialize_receive_units: begin");
3102 * Make sure receives are disabled while setting
3103 * up the descriptor ring
3105 rctl = E1000_READ_REG(hw, E1000_RCTL);
3106 /* Do not disable if ever enabled on this hardware */
3107 if ((hw->mac.type != e1000_82574) && (hw->mac.type != e1000_82583))
3108 E1000_WRITE_REG(hw, E1000_RCTL, rctl & ~E1000_RCTL_EN);
3110 /* Setup the Receive Control Register */
3111 rctl &= ~(3 << E1000_RCTL_MO_SHIFT);
3112 rctl |= E1000_RCTL_EN | E1000_RCTL_BAM |
3113 E1000_RCTL_LBM_NO | E1000_RCTL_RDMTS_HALF |
3114 (hw->mac.mc_filter_type << E1000_RCTL_MO_SHIFT);
3116 /* Do not store bad packets */
3117 rctl &= ~E1000_RCTL_SBP;
3119 /* Enable Long Packet receive */
3120 if (if_getmtu(ifp) > ETHERMTU)
3121 rctl |= E1000_RCTL_LPE;
3123 rctl &= ~E1000_RCTL_LPE;
3126 if (!em_disable_crc_stripping)
3127 rctl |= E1000_RCTL_SECRC;
3129 if (adapter->hw.mac.type >= e1000_82540) {
3130 E1000_WRITE_REG(&adapter->hw, E1000_RADV,
3131 adapter->rx_abs_int_delay.value);
3134 * Set the interrupt throttling rate. Value is calculated
3135 * as DEFAULT_ITR = 1/(MAX_INTS_PER_SEC * 256ns)
3137 E1000_WRITE_REG(hw, E1000_ITR, DEFAULT_ITR);
3139 E1000_WRITE_REG(&adapter->hw, E1000_RDTR,
3140 adapter->rx_int_delay.value);
3142 /* Use extended rx descriptor formats */
3143 rfctl = E1000_READ_REG(hw, E1000_RFCTL);
3144 rfctl |= E1000_RFCTL_EXTEN;
3146 * When using MSIX interrupts we need to throttle
3147 * using the EITR register (82574 only)
3149 if (hw->mac.type == e1000_82574) {
3150 for (int i = 0; i < 4; i++)
3151 E1000_WRITE_REG(hw, E1000_EITR_82574(i),
3153 /* Disable accelerated acknowledge */
3154 rfctl |= E1000_RFCTL_ACK_DIS;
3156 E1000_WRITE_REG(hw, E1000_RFCTL, rfctl);
3158 rxcsum = E1000_READ_REG(hw, E1000_RXCSUM);
3159 if (if_getcapenable(ifp) & IFCAP_RXCSUM &&
3160 adapter->hw.mac.type >= e1000_82543) {
3161 if (adapter->tx_num_queues > 1) {
3162 if (adapter->hw.mac.type >= igb_mac_min) {
3163 rxcsum |= E1000_RXCSUM_PCSD;
3164 if (hw->mac.type != e1000_82575)
3165 rxcsum |= E1000_RXCSUM_CRCOFL;
3167 rxcsum |= E1000_RXCSUM_TUOFL |
3168 E1000_RXCSUM_IPOFL |
3171 if (adapter->hw.mac.type >= igb_mac_min)
3172 rxcsum |= E1000_RXCSUM_IPPCSE;
3174 rxcsum |= E1000_RXCSUM_TUOFL | E1000_RXCSUM_IPOFL;
3175 if (adapter->hw.mac.type > e1000_82575)
3176 rxcsum |= E1000_RXCSUM_CRCOFL;
3179 rxcsum &= ~E1000_RXCSUM_TUOFL;
3181 E1000_WRITE_REG(hw, E1000_RXCSUM, rxcsum);
3183 if (adapter->rx_num_queues > 1) {
3184 if (adapter->hw.mac.type >= igb_mac_min)
3185 igb_initialize_rss_mapping(adapter);
3187 em_initialize_rss_mapping(adapter);
3191 * XXX TEMPORARY WORKAROUND: on some systems with 82573
3192 * long latencies are observed, like Lenovo X60. This
3193 * change eliminates the problem, but since having positive
3194 * values in RDTR is a known source of problems on other
3195 * platforms another solution is being sought.
3197 if (hw->mac.type == e1000_82573)
3198 E1000_WRITE_REG(hw, E1000_RDTR, 0x20);
3200 for (i = 0, que = adapter->rx_queues; i < adapter->rx_num_queues; i++, que++) {
3201 struct rx_ring *rxr = &que->rxr;
3202 /* Setup the Base and Length of the Rx Descriptor Ring */
3203 u64 bus_addr = rxr->rx_paddr;
3205 u32 rdt = adapter->rx_num_queues -1; /* default */
3208 E1000_WRITE_REG(hw, E1000_RDLEN(i),
3209 scctx->isc_nrxd[0] * sizeof(union e1000_rx_desc_extended));
3210 E1000_WRITE_REG(hw, E1000_RDBAH(i), (u32)(bus_addr >> 32));
3211 E1000_WRITE_REG(hw, E1000_RDBAL(i), (u32)bus_addr);
3212 /* Setup the Head and Tail Descriptor Pointers */
3213 E1000_WRITE_REG(hw, E1000_RDH(i), 0);
3214 E1000_WRITE_REG(hw, E1000_RDT(i), 0);
3218 * Set PTHRESH for improved jumbo performance
3219 * According to 10.2.5.11 of Intel 82574 Datasheet,
3220 * RXDCTL(1) is written whenever RXDCTL(0) is written.
3221 * Only write to RXDCTL(1) if there is a need for different
3225 if (((adapter->hw.mac.type == e1000_ich9lan) ||
3226 (adapter->hw.mac.type == e1000_pch2lan) ||
3227 (adapter->hw.mac.type == e1000_ich10lan)) &&
3228 (if_getmtu(ifp) > ETHERMTU)) {
3229 u32 rxdctl = E1000_READ_REG(hw, E1000_RXDCTL(0));
3230 E1000_WRITE_REG(hw, E1000_RXDCTL(0), rxdctl | 3);
3231 } else if (adapter->hw.mac.type == e1000_82574) {
3232 for (int i = 0; i < adapter->rx_num_queues; i++) {
3233 u32 rxdctl = E1000_READ_REG(hw, E1000_RXDCTL(i));
3234 rxdctl |= 0x20; /* PTHRESH */
3235 rxdctl |= 4 << 8; /* HTHRESH */
3236 rxdctl |= 4 << 16;/* WTHRESH */
3237 rxdctl |= 1 << 24; /* Switch to granularity */
3238 E1000_WRITE_REG(hw, E1000_RXDCTL(i), rxdctl);
3240 } else if (adapter->hw.mac.type >= igb_mac_min) {
3241 u32 psize, srrctl = 0;
3243 if (if_getmtu(ifp) > ETHERMTU) {
3244 /* Set maximum packet len */
3245 if (adapter->rx_mbuf_sz <= 4096) {
3246 srrctl |= 4096 >> E1000_SRRCTL_BSIZEPKT_SHIFT;
3247 rctl |= E1000_RCTL_SZ_4096 | E1000_RCTL_BSEX;
3248 } else if (adapter->rx_mbuf_sz > 4096) {
3249 srrctl |= 8192 >> E1000_SRRCTL_BSIZEPKT_SHIFT;
3250 rctl |= E1000_RCTL_SZ_8192 | E1000_RCTL_BSEX;
3252 psize = scctx->isc_max_frame_size;
3253 /* are we on a vlan? */
3254 if (ifp->if_vlantrunk != NULL)
3255 psize += VLAN_TAG_SIZE;
3256 E1000_WRITE_REG(&adapter->hw, E1000_RLPML, psize);
3258 srrctl |= 2048 >> E1000_SRRCTL_BSIZEPKT_SHIFT;
3259 rctl |= E1000_RCTL_SZ_2048;
3263 * If TX flow control is disabled and there's >1 queue defined,
3266 * This drops frames rather than hanging the RX MAC for all queues.
3268 if ((adapter->rx_num_queues > 1) &&
3269 (adapter->fc == e1000_fc_none ||
3270 adapter->fc == e1000_fc_rx_pause)) {
3271 srrctl |= E1000_SRRCTL_DROP_EN;
3273 /* Setup the Base and Length of the Rx Descriptor Rings */
3274 for (i = 0, que = adapter->rx_queues; i < adapter->rx_num_queues; i++, que++) {
3275 struct rx_ring *rxr = &que->rxr;
3276 u64 bus_addr = rxr->rx_paddr;
3280 /* Configure for header split? -- ignore for now */
3281 rxr->hdr_split = igb_header_split;
3283 srrctl |= E1000_SRRCTL_DESCTYPE_ADV_ONEBUF;
3286 E1000_WRITE_REG(hw, E1000_RDLEN(i),
3287 scctx->isc_nrxd[0] * sizeof(struct e1000_rx_desc));
3288 E1000_WRITE_REG(hw, E1000_RDBAH(i),
3289 (uint32_t)(bus_addr >> 32));
3290 E1000_WRITE_REG(hw, E1000_RDBAL(i),
3291 (uint32_t)bus_addr);
3292 E1000_WRITE_REG(hw, E1000_SRRCTL(i), srrctl);
3293 /* Enable this Queue */
3294 rxdctl = E1000_READ_REG(hw, E1000_RXDCTL(i));
3295 rxdctl |= E1000_RXDCTL_QUEUE_ENABLE;
3296 rxdctl &= 0xFFF00000;
3297 rxdctl |= IGB_RX_PTHRESH;
3298 rxdctl |= IGB_RX_HTHRESH << 8;
3299 rxdctl |= IGB_RX_WTHRESH << 16;
3300 E1000_WRITE_REG(hw, E1000_RXDCTL(i), rxdctl);
3302 } else if (adapter->hw.mac.type >= e1000_pch2lan) {
3303 if (if_getmtu(ifp) > ETHERMTU)
3304 e1000_lv_jumbo_workaround_ich8lan(hw, TRUE);
3306 e1000_lv_jumbo_workaround_ich8lan(hw, FALSE);
3309 /* Make sure VLAN Filters are off */
3310 rctl &= ~E1000_RCTL_VFE;
3312 if (adapter->hw.mac.type < igb_mac_min) {
3313 if (adapter->rx_mbuf_sz == MCLBYTES)
3314 rctl |= E1000_RCTL_SZ_2048;
3315 else if (adapter->rx_mbuf_sz == MJUMPAGESIZE)
3316 rctl |= E1000_RCTL_SZ_4096 | E1000_RCTL_BSEX;
3317 else if (adapter->rx_mbuf_sz > MJUMPAGESIZE)
3318 rctl |= E1000_RCTL_SZ_8192 | E1000_RCTL_BSEX;
3320 /* ensure we clear use DTYPE of 00 here */
3321 rctl &= ~0x00000C00;
3324 /* Write out the settings */
3325 E1000_WRITE_REG(hw, E1000_RCTL, rctl);
3331 em_if_vlan_register(if_ctx_t ctx, u16 vtag)
3333 struct adapter *adapter = iflib_get_softc(ctx);
3336 index = (vtag >> 5) & 0x7F;
3338 adapter->shadow_vfta[index] |= (1 << bit);
3339 ++adapter->num_vlans;
3343 em_if_vlan_unregister(if_ctx_t ctx, u16 vtag)
3345 struct adapter *adapter = iflib_get_softc(ctx);
3348 index = (vtag >> 5) & 0x7F;
3350 adapter->shadow_vfta[index] &= ~(1 << bit);
3351 --adapter->num_vlans;
3355 em_setup_vlan_hw_support(struct adapter *adapter)
3357 struct e1000_hw *hw = &adapter->hw;
3361 * We get here thru init_locked, meaning
3362 * a soft reset, this has already cleared
3363 * the VFTA and other state, so if there
3364 * have been no vlan's registered do nothing.
3366 if (adapter->num_vlans == 0)
3370 * A soft reset zero's out the VFTA, so
3371 * we need to repopulate it now.
3373 for (int i = 0; i < EM_VFTA_SIZE; i++)
3374 if (adapter->shadow_vfta[i] != 0)
3375 E1000_WRITE_REG_ARRAY(hw, E1000_VFTA,
3376 i, adapter->shadow_vfta[i]);
3378 reg = E1000_READ_REG(hw, E1000_CTRL);
3379 reg |= E1000_CTRL_VME;
3380 E1000_WRITE_REG(hw, E1000_CTRL, reg);
3382 /* Enable the Filter Table */
3383 reg = E1000_READ_REG(hw, E1000_RCTL);
3384 reg &= ~E1000_RCTL_CFIEN;
3385 reg |= E1000_RCTL_VFE;
3386 E1000_WRITE_REG(hw, E1000_RCTL, reg);
3390 em_if_enable_intr(if_ctx_t ctx)
3392 struct adapter *adapter = iflib_get_softc(ctx);
3393 struct e1000_hw *hw = &adapter->hw;
3394 u32 ims_mask = IMS_ENABLE_MASK;
3396 if (hw->mac.type == e1000_82574) {
3397 E1000_WRITE_REG(hw, EM_EIAC, EM_MSIX_MASK);
3398 ims_mask |= adapter->ims;
3399 } else if (adapter->intr_type == IFLIB_INTR_MSIX && hw->mac.type >= igb_mac_min) {
3400 u32 mask = (adapter->que_mask | adapter->link_mask);
3402 E1000_WRITE_REG(&adapter->hw, E1000_EIAC, mask);
3403 E1000_WRITE_REG(&adapter->hw, E1000_EIAM, mask);
3404 E1000_WRITE_REG(&adapter->hw, E1000_EIMS, mask);
3405 ims_mask = E1000_IMS_LSC;
3408 E1000_WRITE_REG(hw, E1000_IMS, ims_mask);
3412 em_if_disable_intr(if_ctx_t ctx)
3414 struct adapter *adapter = iflib_get_softc(ctx);
3415 struct e1000_hw *hw = &adapter->hw;
3417 if (adapter->intr_type == IFLIB_INTR_MSIX) {
3418 if (hw->mac.type >= igb_mac_min)
3419 E1000_WRITE_REG(&adapter->hw, E1000_EIMC, ~0);
3420 E1000_WRITE_REG(&adapter->hw, E1000_EIAC, 0);
3422 E1000_WRITE_REG(&adapter->hw, E1000_IMC, 0xffffffff);
3426 * Bit of a misnomer, what this really means is
3427 * to enable OS management of the system... aka
3428 * to disable special hardware management features
3431 em_init_manageability(struct adapter *adapter)
3433 /* A shared code workaround */
3434 #define E1000_82542_MANC2H E1000_MANC2H
3435 if (adapter->has_manage) {
3436 int manc2h = E1000_READ_REG(&adapter->hw, E1000_MANC2H);
3437 int manc = E1000_READ_REG(&adapter->hw, E1000_MANC);
3439 /* disable hardware interception of ARP */
3440 manc &= ~(E1000_MANC_ARP_EN);
3442 /* enable receiving management packets to the host */
3443 manc |= E1000_MANC_EN_MNG2HOST;
3444 #define E1000_MNG2HOST_PORT_623 (1 << 5)
3445 #define E1000_MNG2HOST_PORT_664 (1 << 6)
3446 manc2h |= E1000_MNG2HOST_PORT_623;
3447 manc2h |= E1000_MNG2HOST_PORT_664;
3448 E1000_WRITE_REG(&adapter->hw, E1000_MANC2H, manc2h);
3449 E1000_WRITE_REG(&adapter->hw, E1000_MANC, manc);
3454 * Give control back to hardware management
3455 * controller if there is one.
3458 em_release_manageability(struct adapter *adapter)
3460 if (adapter->has_manage) {
3461 int manc = E1000_READ_REG(&adapter->hw, E1000_MANC);
3463 /* re-enable hardware interception of ARP */
3464 manc |= E1000_MANC_ARP_EN;
3465 manc &= ~E1000_MANC_EN_MNG2HOST;
3467 E1000_WRITE_REG(&adapter->hw, E1000_MANC, manc);
3472 * em_get_hw_control sets the {CTRL_EXT|FWSM}:DRV_LOAD bit.
3473 * For ASF and Pass Through versions of f/w this means
3474 * that the driver is loaded. For AMT version type f/w
3475 * this means that the network i/f is open.
3478 em_get_hw_control(struct adapter *adapter)
3482 if (adapter->vf_ifp)
3485 if (adapter->hw.mac.type == e1000_82573) {
3486 swsm = E1000_READ_REG(&adapter->hw, E1000_SWSM);
3487 E1000_WRITE_REG(&adapter->hw, E1000_SWSM,
3488 swsm | E1000_SWSM_DRV_LOAD);
3492 ctrl_ext = E1000_READ_REG(&adapter->hw, E1000_CTRL_EXT);
3493 E1000_WRITE_REG(&adapter->hw, E1000_CTRL_EXT,
3494 ctrl_ext | E1000_CTRL_EXT_DRV_LOAD);
3498 * em_release_hw_control resets {CTRL_EXT|FWSM}:DRV_LOAD bit.
3499 * For ASF and Pass Through versions of f/w this means that
3500 * the driver is no longer loaded. For AMT versions of the
3501 * f/w this means that the network i/f is closed.
3504 em_release_hw_control(struct adapter *adapter)
3508 if (!adapter->has_manage)
3511 if (adapter->hw.mac.type == e1000_82573) {
3512 swsm = E1000_READ_REG(&adapter->hw, E1000_SWSM);
3513 E1000_WRITE_REG(&adapter->hw, E1000_SWSM,
3514 swsm & ~E1000_SWSM_DRV_LOAD);
3518 ctrl_ext = E1000_READ_REG(&adapter->hw, E1000_CTRL_EXT);
3519 E1000_WRITE_REG(&adapter->hw, E1000_CTRL_EXT,
3520 ctrl_ext & ~E1000_CTRL_EXT_DRV_LOAD);
3525 em_is_valid_ether_addr(u8 *addr)
3527 char zero_addr[6] = { 0, 0, 0, 0, 0, 0 };
3529 if ((addr[0] & 1) || (!bcmp(addr, zero_addr, ETHER_ADDR_LEN))) {
3537 ** Parse the interface capabilities with regard
3538 ** to both system management and wake-on-lan for
3542 em_get_wakeup(if_ctx_t ctx)
3544 struct adapter *adapter = iflib_get_softc(ctx);
3545 device_t dev = iflib_get_dev(ctx);
3546 u16 eeprom_data = 0, device_id, apme_mask;
3548 adapter->has_manage = e1000_enable_mng_pass_thru(&adapter->hw);
3549 apme_mask = EM_EEPROM_APME;
3551 switch (adapter->hw.mac.type) {
3556 e1000_read_nvm(&adapter->hw,
3557 NVM_INIT_CONTROL2_REG, 1, &eeprom_data);
3558 apme_mask = EM_82544_APME;
3561 case e1000_82546_rev_3:
3562 if (adapter->hw.bus.func == 1) {
3563 e1000_read_nvm(&adapter->hw,
3564 NVM_INIT_CONTROL3_PORT_B, 1, &eeprom_data);
3567 e1000_read_nvm(&adapter->hw,
3568 NVM_INIT_CONTROL3_PORT_A, 1, &eeprom_data);
3572 adapter->has_amt = TRUE;
3576 case e1000_80003es2lan:
3577 if (adapter->hw.bus.func == 1) {
3578 e1000_read_nvm(&adapter->hw,
3579 NVM_INIT_CONTROL3_PORT_B, 1, &eeprom_data);
3582 e1000_read_nvm(&adapter->hw,
3583 NVM_INIT_CONTROL3_PORT_A, 1, &eeprom_data);
3587 case e1000_ich10lan:
3592 case e1000_82575: /* listing all igb devices */
3600 case e1000_vfadapt_i350:
3601 apme_mask = E1000_WUC_APME;
3602 adapter->has_amt = TRUE;
3603 eeprom_data = E1000_READ_REG(&adapter->hw, E1000_WUC);
3606 e1000_read_nvm(&adapter->hw,
3607 NVM_INIT_CONTROL3_PORT_A, 1, &eeprom_data);
3610 if (eeprom_data & apme_mask)
3611 adapter->wol = (E1000_WUFC_MAG | E1000_WUFC_MC);
3613 * We have the eeprom settings, now apply the special cases
3614 * where the eeprom may be wrong or the board won't support
3615 * wake on lan on a particular port
3617 device_id = pci_get_device(dev);
3618 switch (device_id) {
3619 case E1000_DEV_ID_82546GB_PCIE:
3622 case E1000_DEV_ID_82546EB_FIBER:
3623 case E1000_DEV_ID_82546GB_FIBER:
3624 /* Wake events only supported on port A for dual fiber
3625 * regardless of eeprom setting */
3626 if (E1000_READ_REG(&adapter->hw, E1000_STATUS) &
3627 E1000_STATUS_FUNC_1)
3630 case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3:
3631 /* if quad port adapter, disable WoL on all but port A */
3632 if (global_quad_port_a != 0)
3634 /* Reset for multiple quad port adapters */
3635 if (++global_quad_port_a == 4)
3636 global_quad_port_a = 0;
3638 case E1000_DEV_ID_82571EB_FIBER:
3639 /* Wake events only supported on port A for dual fiber
3640 * regardless of eeprom setting */
3641 if (E1000_READ_REG(&adapter->hw, E1000_STATUS) &
3642 E1000_STATUS_FUNC_1)
3645 case E1000_DEV_ID_82571EB_QUAD_COPPER:
3646 case E1000_DEV_ID_82571EB_QUAD_FIBER:
3647 case E1000_DEV_ID_82571EB_QUAD_COPPER_LP:
3648 /* if quad port adapter, disable WoL on all but port A */
3649 if (global_quad_port_a != 0)
3651 /* Reset for multiple quad port adapters */
3652 if (++global_quad_port_a == 4)
3653 global_quad_port_a = 0;
3661 * Enable PCI Wake On Lan capability
3664 em_enable_wakeup(if_ctx_t ctx)
3666 struct adapter *adapter = iflib_get_softc(ctx);
3667 device_t dev = iflib_get_dev(ctx);
3668 if_t ifp = iflib_get_ifp(ctx);
3670 u32 pmc, ctrl, ctrl_ext, rctl;
3673 if (pci_find_cap(dev, PCIY_PMG, &pmc) != 0)
3677 * Determine type of Wakeup: note that wol
3678 * is set with all bits on by default.
3680 if ((if_getcapenable(ifp) & IFCAP_WOL_MAGIC) == 0)
3681 adapter->wol &= ~E1000_WUFC_MAG;
3683 if ((if_getcapenable(ifp) & IFCAP_WOL_UCAST) == 0)
3684 adapter->wol &= ~E1000_WUFC_EX;
3686 if ((if_getcapenable(ifp) & IFCAP_WOL_MCAST) == 0)
3687 adapter->wol &= ~E1000_WUFC_MC;
3689 rctl = E1000_READ_REG(&adapter->hw, E1000_RCTL);
3690 rctl |= E1000_RCTL_MPE;
3691 E1000_WRITE_REG(&adapter->hw, E1000_RCTL, rctl);
3694 if (!(adapter->wol & (E1000_WUFC_EX | E1000_WUFC_MAG | E1000_WUFC_MC)))
3697 /* Advertise the wakeup capability */
3698 ctrl = E1000_READ_REG(&adapter->hw, E1000_CTRL);
3699 ctrl |= (E1000_CTRL_SWDPIN2 | E1000_CTRL_SWDPIN3);
3700 E1000_WRITE_REG(&adapter->hw, E1000_CTRL, ctrl);
3702 /* Keep the laser running on Fiber adapters */
3703 if (adapter->hw.phy.media_type == e1000_media_type_fiber ||
3704 adapter->hw.phy.media_type == e1000_media_type_internal_serdes) {
3705 ctrl_ext = E1000_READ_REG(&adapter->hw, E1000_CTRL_EXT);
3706 ctrl_ext |= E1000_CTRL_EXT_SDP3_DATA;
3707 E1000_WRITE_REG(&adapter->hw, E1000_CTRL_EXT, ctrl_ext);
3710 if ((adapter->hw.mac.type == e1000_ich8lan) ||
3711 (adapter->hw.mac.type == e1000_pchlan) ||
3712 (adapter->hw.mac.type == e1000_ich9lan) ||
3713 (adapter->hw.mac.type == e1000_ich10lan))
3714 e1000_suspend_workarounds_ich8lan(&adapter->hw);
3716 if ( adapter->hw.mac.type >= e1000_pchlan) {
3717 error = em_enable_phy_wakeup(adapter);
3721 /* Enable wakeup by the MAC */
3722 E1000_WRITE_REG(&adapter->hw, E1000_WUC, E1000_WUC_PME_EN);
3723 E1000_WRITE_REG(&adapter->hw, E1000_WUFC, adapter->wol);
3726 if (adapter->hw.phy.type == e1000_phy_igp_3)
3727 e1000_igp3_phy_powerdown_workaround_ich8lan(&adapter->hw);
3730 status = pci_read_config(dev, pmc + PCIR_POWER_STATUS, 2);
3731 status &= ~(PCIM_PSTAT_PME | PCIM_PSTAT_PMEENABLE);
3732 if (!error && (if_getcapenable(ifp) & IFCAP_WOL))
3733 status |= PCIM_PSTAT_PME | PCIM_PSTAT_PMEENABLE;
3734 pci_write_config(dev, pmc + PCIR_POWER_STATUS, status, 2);
3740 * WOL in the newer chipset interfaces (pchlan)
3741 * require thing to be copied into the phy
3744 em_enable_phy_wakeup(struct adapter *adapter)
3746 struct e1000_hw *hw = &adapter->hw;
3750 /* copy MAC RARs to PHY RARs */
3751 e1000_copy_rx_addrs_to_phy_ich8lan(hw);
3753 /* copy MAC MTA to PHY MTA */
3754 for (int i = 0; i < adapter->hw.mac.mta_reg_count; i++) {
3755 mreg = E1000_READ_REG_ARRAY(hw, E1000_MTA, i);
3756 e1000_write_phy_reg(hw, BM_MTA(i), (u16)(mreg & 0xFFFF));
3757 e1000_write_phy_reg(hw, BM_MTA(i) + 1,
3758 (u16)((mreg >> 16) & 0xFFFF));
3761 /* configure PHY Rx Control register */
3762 e1000_read_phy_reg(&adapter->hw, BM_RCTL, &preg);
3763 mreg = E1000_READ_REG(hw, E1000_RCTL);
3764 if (mreg & E1000_RCTL_UPE)
3765 preg |= BM_RCTL_UPE;
3766 if (mreg & E1000_RCTL_MPE)
3767 preg |= BM_RCTL_MPE;
3768 preg &= ~(BM_RCTL_MO_MASK);
3769 if (mreg & E1000_RCTL_MO_3)
3770 preg |= (((mreg & E1000_RCTL_MO_3) >> E1000_RCTL_MO_SHIFT)
3771 << BM_RCTL_MO_SHIFT);
3772 if (mreg & E1000_RCTL_BAM)
3773 preg |= BM_RCTL_BAM;
3774 if (mreg & E1000_RCTL_PMCF)
3775 preg |= BM_RCTL_PMCF;
3776 mreg = E1000_READ_REG(hw, E1000_CTRL);
3777 if (mreg & E1000_CTRL_RFCE)
3778 preg |= BM_RCTL_RFCE;
3779 e1000_write_phy_reg(&adapter->hw, BM_RCTL, preg);
3781 /* enable PHY wakeup in MAC register */
3782 E1000_WRITE_REG(hw, E1000_WUC,
3783 E1000_WUC_PHY_WAKE | E1000_WUC_PME_EN | E1000_WUC_APME);
3784 E1000_WRITE_REG(hw, E1000_WUFC, adapter->wol);
3786 /* configure and enable PHY wakeup in PHY registers */
3787 e1000_write_phy_reg(&adapter->hw, BM_WUFC, adapter->wol);
3788 e1000_write_phy_reg(&adapter->hw, BM_WUC, E1000_WUC_PME_EN);
3790 /* activate PHY wakeup */
3791 ret = hw->phy.ops.acquire(hw);
3793 printf("Could not acquire PHY\n");
3796 e1000_write_phy_reg_mdic(hw, IGP01E1000_PHY_PAGE_SELECT,
3797 (BM_WUC_ENABLE_PAGE << IGP_PAGE_SHIFT));
3798 ret = e1000_read_phy_reg_mdic(hw, BM_WUC_ENABLE_REG, &preg);
3800 printf("Could not read PHY page 769\n");
3803 preg |= BM_WUC_ENABLE_BIT | BM_WUC_HOST_WU_BIT;
3804 ret = e1000_write_phy_reg_mdic(hw, BM_WUC_ENABLE_REG, preg);
3806 printf("Could not set PHY Host Wakeup bit\n");
3808 hw->phy.ops.release(hw);
3814 em_if_led_func(if_ctx_t ctx, int onoff)
3816 struct adapter *adapter = iflib_get_softc(ctx);
3819 e1000_setup_led(&adapter->hw);
3820 e1000_led_on(&adapter->hw);
3822 e1000_led_off(&adapter->hw);
3823 e1000_cleanup_led(&adapter->hw);
3828 * Disable the L0S and L1 LINK states
3831 em_disable_aspm(struct adapter *adapter)
3834 u16 link_cap,link_ctrl;
3835 device_t dev = adapter->dev;
3837 switch (adapter->hw.mac.type) {
3845 if (pci_find_cap(dev, PCIY_EXPRESS, &base) != 0)
3847 reg = base + PCIER_LINK_CAP;
3848 link_cap = pci_read_config(dev, reg, 2);
3849 if ((link_cap & PCIEM_LINK_CAP_ASPM) == 0)
3851 reg = base + PCIER_LINK_CTL;
3852 link_ctrl = pci_read_config(dev, reg, 2);
3853 link_ctrl &= ~PCIEM_LINK_CTL_ASPMC;
3854 pci_write_config(dev, reg, link_ctrl, 2);
3858 /**********************************************************************
3860 * Update the board statistics counters.
3862 **********************************************************************/
3864 em_update_stats_counters(struct adapter *adapter)
3867 if(adapter->hw.phy.media_type == e1000_media_type_copper ||
3868 (E1000_READ_REG(&adapter->hw, E1000_STATUS) & E1000_STATUS_LU)) {
3869 adapter->stats.symerrs += E1000_READ_REG(&adapter->hw, E1000_SYMERRS);
3870 adapter->stats.sec += E1000_READ_REG(&adapter->hw, E1000_SEC);
3872 adapter->stats.crcerrs += E1000_READ_REG(&adapter->hw, E1000_CRCERRS);
3873 adapter->stats.mpc += E1000_READ_REG(&adapter->hw, E1000_MPC);
3874 adapter->stats.scc += E1000_READ_REG(&adapter->hw, E1000_SCC);
3875 adapter->stats.ecol += E1000_READ_REG(&adapter->hw, E1000_ECOL);
3877 adapter->stats.mcc += E1000_READ_REG(&adapter->hw, E1000_MCC);
3878 adapter->stats.latecol += E1000_READ_REG(&adapter->hw, E1000_LATECOL);
3879 adapter->stats.colc += E1000_READ_REG(&adapter->hw, E1000_COLC);
3880 adapter->stats.dc += E1000_READ_REG(&adapter->hw, E1000_DC);
3881 adapter->stats.rlec += E1000_READ_REG(&adapter->hw, E1000_RLEC);
3882 adapter->stats.xonrxc += E1000_READ_REG(&adapter->hw, E1000_XONRXC);
3883 adapter->stats.xontxc += E1000_READ_REG(&adapter->hw, E1000_XONTXC);
3884 adapter->stats.xoffrxc += E1000_READ_REG(&adapter->hw, E1000_XOFFRXC);
3886 ** For watchdog management we need to know if we have been
3887 ** paused during the last interval, so capture that here.
3889 adapter->shared->isc_pause_frames = adapter->stats.xoffrxc;
3890 adapter->stats.xofftxc += E1000_READ_REG(&adapter->hw, E1000_XOFFTXC);
3891 adapter->stats.fcruc += E1000_READ_REG(&adapter->hw, E1000_FCRUC);
3892 adapter->stats.prc64 += E1000_READ_REG(&adapter->hw, E1000_PRC64);
3893 adapter->stats.prc127 += E1000_READ_REG(&adapter->hw, E1000_PRC127);
3894 adapter->stats.prc255 += E1000_READ_REG(&adapter->hw, E1000_PRC255);
3895 adapter->stats.prc511 += E1000_READ_REG(&adapter->hw, E1000_PRC511);
3896 adapter->stats.prc1023 += E1000_READ_REG(&adapter->hw, E1000_PRC1023);
3897 adapter->stats.prc1522 += E1000_READ_REG(&adapter->hw, E1000_PRC1522);
3898 adapter->stats.gprc += E1000_READ_REG(&adapter->hw, E1000_GPRC);
3899 adapter->stats.bprc += E1000_READ_REG(&adapter->hw, E1000_BPRC);
3900 adapter->stats.mprc += E1000_READ_REG(&adapter->hw, E1000_MPRC);
3901 adapter->stats.gptc += E1000_READ_REG(&adapter->hw, E1000_GPTC);
3903 /* For the 64-bit byte counters the low dword must be read first. */
3904 /* Both registers clear on the read of the high dword */
3906 adapter->stats.gorc += E1000_READ_REG(&adapter->hw, E1000_GORCL) +
3907 ((u64)E1000_READ_REG(&adapter->hw, E1000_GORCH) << 32);
3908 adapter->stats.gotc += E1000_READ_REG(&adapter->hw, E1000_GOTCL) +
3909 ((u64)E1000_READ_REG(&adapter->hw, E1000_GOTCH) << 32);
3911 adapter->stats.rnbc += E1000_READ_REG(&adapter->hw, E1000_RNBC);
3912 adapter->stats.ruc += E1000_READ_REG(&adapter->hw, E1000_RUC);
3913 adapter->stats.rfc += E1000_READ_REG(&adapter->hw, E1000_RFC);
3914 adapter->stats.roc += E1000_READ_REG(&adapter->hw, E1000_ROC);
3915 adapter->stats.rjc += E1000_READ_REG(&adapter->hw, E1000_RJC);
3917 adapter->stats.tor += E1000_READ_REG(&adapter->hw, E1000_TORH);
3918 adapter->stats.tot += E1000_READ_REG(&adapter->hw, E1000_TOTH);
3920 adapter->stats.tpr += E1000_READ_REG(&adapter->hw, E1000_TPR);
3921 adapter->stats.tpt += E1000_READ_REG(&adapter->hw, E1000_TPT);
3922 adapter->stats.ptc64 += E1000_READ_REG(&adapter->hw, E1000_PTC64);
3923 adapter->stats.ptc127 += E1000_READ_REG(&adapter->hw, E1000_PTC127);
3924 adapter->stats.ptc255 += E1000_READ_REG(&adapter->hw, E1000_PTC255);
3925 adapter->stats.ptc511 += E1000_READ_REG(&adapter->hw, E1000_PTC511);
3926 adapter->stats.ptc1023 += E1000_READ_REG(&adapter->hw, E1000_PTC1023);
3927 adapter->stats.ptc1522 += E1000_READ_REG(&adapter->hw, E1000_PTC1522);
3928 adapter->stats.mptc += E1000_READ_REG(&adapter->hw, E1000_MPTC);
3929 adapter->stats.bptc += E1000_READ_REG(&adapter->hw, E1000_BPTC);
3931 /* Interrupt Counts */
3933 adapter->stats.iac += E1000_READ_REG(&adapter->hw, E1000_IAC);
3934 adapter->stats.icrxptc += E1000_READ_REG(&adapter->hw, E1000_ICRXPTC);
3935 adapter->stats.icrxatc += E1000_READ_REG(&adapter->hw, E1000_ICRXATC);
3936 adapter->stats.ictxptc += E1000_READ_REG(&adapter->hw, E1000_ICTXPTC);
3937 adapter->stats.ictxatc += E1000_READ_REG(&adapter->hw, E1000_ICTXATC);
3938 adapter->stats.ictxqec += E1000_READ_REG(&adapter->hw, E1000_ICTXQEC);
3939 adapter->stats.ictxqmtc += E1000_READ_REG(&adapter->hw, E1000_ICTXQMTC);
3940 adapter->stats.icrxdmtc += E1000_READ_REG(&adapter->hw, E1000_ICRXDMTC);
3941 adapter->stats.icrxoc += E1000_READ_REG(&adapter->hw, E1000_ICRXOC);
3943 if (adapter->hw.mac.type >= e1000_82543) {
3944 adapter->stats.algnerrc +=
3945 E1000_READ_REG(&adapter->hw, E1000_ALGNERRC);
3946 adapter->stats.rxerrc +=
3947 E1000_READ_REG(&adapter->hw, E1000_RXERRC);
3948 adapter->stats.tncrs +=
3949 E1000_READ_REG(&adapter->hw, E1000_TNCRS);
3950 adapter->stats.cexterr +=
3951 E1000_READ_REG(&adapter->hw, E1000_CEXTERR);
3952 adapter->stats.tsctc +=
3953 E1000_READ_REG(&adapter->hw, E1000_TSCTC);
3954 adapter->stats.tsctfc +=
3955 E1000_READ_REG(&adapter->hw, E1000_TSCTFC);
3960 em_if_get_counter(if_ctx_t ctx, ift_counter cnt)
3962 struct adapter *adapter = iflib_get_softc(ctx);
3963 struct ifnet *ifp = iflib_get_ifp(ctx);
3966 case IFCOUNTER_COLLISIONS:
3967 return (adapter->stats.colc);
3968 case IFCOUNTER_IERRORS:
3969 return (adapter->dropped_pkts + adapter->stats.rxerrc +
3970 adapter->stats.crcerrs + adapter->stats.algnerrc +
3971 adapter->stats.ruc + adapter->stats.roc +
3972 adapter->stats.mpc + adapter->stats.cexterr);
3973 case IFCOUNTER_OERRORS:
3974 return (adapter->stats.ecol + adapter->stats.latecol +
3975 adapter->watchdog_events);
3977 return (if_get_counter_default(ifp, cnt));
3981 /* Export a single 32-bit register via a read-only sysctl. */
3983 em_sysctl_reg_handler(SYSCTL_HANDLER_ARGS)
3985 struct adapter *adapter;
3988 adapter = oidp->oid_arg1;
3989 val = E1000_READ_REG(&adapter->hw, oidp->oid_arg2);
3990 return (sysctl_handle_int(oidp, &val, 0, req));
3994 * Add sysctl variables, one per statistic, to the system.
3997 em_add_hw_stats(struct adapter *adapter)
3999 device_t dev = iflib_get_dev(adapter->ctx);
4000 struct em_tx_queue *tx_que = adapter->tx_queues;
4001 struct em_rx_queue *rx_que = adapter->rx_queues;
4003 struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(dev);
4004 struct sysctl_oid *tree = device_get_sysctl_tree(dev);
4005 struct sysctl_oid_list *child = SYSCTL_CHILDREN(tree);
4006 struct e1000_hw_stats *stats = &adapter->stats;
4008 struct sysctl_oid *stat_node, *queue_node, *int_node;
4009 struct sysctl_oid_list *stat_list, *queue_list, *int_list;
4011 #define QUEUE_NAME_LEN 32
4012 char namebuf[QUEUE_NAME_LEN];
4014 /* Driver Statistics */
4015 SYSCTL_ADD_ULONG(ctx, child, OID_AUTO, "dropped",
4016 CTLFLAG_RD, &adapter->dropped_pkts,
4017 "Driver dropped packets");
4018 SYSCTL_ADD_ULONG(ctx, child, OID_AUTO, "link_irq",
4019 CTLFLAG_RD, &adapter->link_irq,
4020 "Link MSIX IRQ Handled");
4021 SYSCTL_ADD_ULONG(ctx, child, OID_AUTO, "mbuf_defrag_fail",
4022 CTLFLAG_RD, &adapter->mbuf_defrag_failed,
4023 "Defragmenting mbuf chain failed");
4024 SYSCTL_ADD_ULONG(ctx, child, OID_AUTO, "tx_dma_fail",
4025 CTLFLAG_RD, &adapter->no_tx_dma_setup,
4026 "Driver tx dma failure in xmit");
4027 SYSCTL_ADD_ULONG(ctx, child, OID_AUTO, "rx_overruns",
4028 CTLFLAG_RD, &adapter->rx_overruns,
4030 SYSCTL_ADD_ULONG(ctx, child, OID_AUTO, "watchdog_timeouts",
4031 CTLFLAG_RD, &adapter->watchdog_events,
4032 "Watchdog timeouts");
4033 SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "device_control",
4034 CTLTYPE_UINT | CTLFLAG_RD, adapter, E1000_CTRL,
4035 em_sysctl_reg_handler, "IU",
4036 "Device Control Register");
4037 SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "rx_control",
4038 CTLTYPE_UINT | CTLFLAG_RD, adapter, E1000_RCTL,
4039 em_sysctl_reg_handler, "IU",
4040 "Receiver Control Register");
4041 SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "fc_high_water",
4042 CTLFLAG_RD, &adapter->hw.fc.high_water, 0,
4043 "Flow Control High Watermark");
4044 SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "fc_low_water",
4045 CTLFLAG_RD, &adapter->hw.fc.low_water, 0,
4046 "Flow Control Low Watermark");
4048 for (int i = 0; i < adapter->tx_num_queues; i++, tx_que++) {
4049 struct tx_ring *txr = &tx_que->txr;
4050 snprintf(namebuf, QUEUE_NAME_LEN, "queue_tx_%d", i);
4051 queue_node = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, namebuf,
4052 CTLFLAG_RD, NULL, "TX Queue Name");
4053 queue_list = SYSCTL_CHILDREN(queue_node);
4055 SYSCTL_ADD_PROC(ctx, queue_list, OID_AUTO, "txd_head",
4056 CTLTYPE_UINT | CTLFLAG_RD, adapter,
4058 em_sysctl_reg_handler, "IU",
4059 "Transmit Descriptor Head");
4060 SYSCTL_ADD_PROC(ctx, queue_list, OID_AUTO, "txd_tail",
4061 CTLTYPE_UINT | CTLFLAG_RD, adapter,
4063 em_sysctl_reg_handler, "IU",
4064 "Transmit Descriptor Tail");
4065 SYSCTL_ADD_ULONG(ctx, queue_list, OID_AUTO, "tx_irq",
4066 CTLFLAG_RD, &txr->tx_irq,
4067 "Queue MSI-X Transmit Interrupts");
4070 for (int j = 0; j < adapter->rx_num_queues; j++, rx_que++) {
4071 struct rx_ring *rxr = &rx_que->rxr;
4072 snprintf(namebuf, QUEUE_NAME_LEN, "queue_rx_%d", j);
4073 queue_node = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, namebuf,
4074 CTLFLAG_RD, NULL, "RX Queue Name");
4075 queue_list = SYSCTL_CHILDREN(queue_node);
4077 SYSCTL_ADD_PROC(ctx, queue_list, OID_AUTO, "rxd_head",
4078 CTLTYPE_UINT | CTLFLAG_RD, adapter,
4080 em_sysctl_reg_handler, "IU",
4081 "Receive Descriptor Head");
4082 SYSCTL_ADD_PROC(ctx, queue_list, OID_AUTO, "rxd_tail",
4083 CTLTYPE_UINT | CTLFLAG_RD, adapter,
4085 em_sysctl_reg_handler, "IU",
4086 "Receive Descriptor Tail");
4087 SYSCTL_ADD_ULONG(ctx, queue_list, OID_AUTO, "rx_irq",
4088 CTLFLAG_RD, &rxr->rx_irq,
4089 "Queue MSI-X Receive Interrupts");
4092 /* MAC stats get their own sub node */
4094 stat_node = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, "mac_stats",
4095 CTLFLAG_RD, NULL, "Statistics");
4096 stat_list = SYSCTL_CHILDREN(stat_node);
4098 SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "excess_coll",
4099 CTLFLAG_RD, &stats->ecol,
4100 "Excessive collisions");
4101 SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "single_coll",
4102 CTLFLAG_RD, &stats->scc,
4103 "Single collisions");
4104 SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "multiple_coll",
4105 CTLFLAG_RD, &stats->mcc,
4106 "Multiple collisions");
4107 SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "late_coll",
4108 CTLFLAG_RD, &stats->latecol,
4110 SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "collision_count",
4111 CTLFLAG_RD, &stats->colc,
4113 SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "symbol_errors",
4114 CTLFLAG_RD, &adapter->stats.symerrs,
4116 SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "sequence_errors",
4117 CTLFLAG_RD, &adapter->stats.sec,
4119 SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "defer_count",
4120 CTLFLAG_RD, &adapter->stats.dc,
4122 SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "missed_packets",
4123 CTLFLAG_RD, &adapter->stats.mpc,
4125 SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "recv_no_buff",
4126 CTLFLAG_RD, &adapter->stats.rnbc,
4127 "Receive No Buffers");
4128 SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "recv_undersize",
4129 CTLFLAG_RD, &adapter->stats.ruc,
4130 "Receive Undersize");
4131 SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "recv_fragmented",
4132 CTLFLAG_RD, &adapter->stats.rfc,
4133 "Fragmented Packets Received ");
4134 SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "recv_oversize",
4135 CTLFLAG_RD, &adapter->stats.roc,
4136 "Oversized Packets Received");
4137 SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "recv_jabber",
4138 CTLFLAG_RD, &adapter->stats.rjc,
4140 SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "recv_errs",
4141 CTLFLAG_RD, &adapter->stats.rxerrc,
4143 SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "crc_errs",
4144 CTLFLAG_RD, &adapter->stats.crcerrs,
4146 SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "alignment_errs",
4147 CTLFLAG_RD, &adapter->stats.algnerrc,
4148 "Alignment Errors");
4149 /* On 82575 these are collision counts */
4150 SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "coll_ext_errs",
4151 CTLFLAG_RD, &adapter->stats.cexterr,
4152 "Collision/Carrier extension errors");
4153 SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "xon_recvd",
4154 CTLFLAG_RD, &adapter->stats.xonrxc,
4156 SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "xon_txd",
4157 CTLFLAG_RD, &adapter->stats.xontxc,
4159 SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "xoff_recvd",
4160 CTLFLAG_RD, &adapter->stats.xoffrxc,
4162 SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "xoff_txd",
4163 CTLFLAG_RD, &adapter->stats.xofftxc,
4164 "XOFF Transmitted");
4166 /* Packet Reception Stats */
4167 SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "total_pkts_recvd",
4168 CTLFLAG_RD, &adapter->stats.tpr,
4169 "Total Packets Received ");
4170 SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "good_pkts_recvd",
4171 CTLFLAG_RD, &adapter->stats.gprc,
4172 "Good Packets Received");
4173 SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "bcast_pkts_recvd",
4174 CTLFLAG_RD, &adapter->stats.bprc,
4175 "Broadcast Packets Received");
4176 SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "mcast_pkts_recvd",
4177 CTLFLAG_RD, &adapter->stats.mprc,
4178 "Multicast Packets Received");
4179 SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "rx_frames_64",
4180 CTLFLAG_RD, &adapter->stats.prc64,
4181 "64 byte frames received ");
4182 SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "rx_frames_65_127",
4183 CTLFLAG_RD, &adapter->stats.prc127,
4184 "65-127 byte frames received");
4185 SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "rx_frames_128_255",
4186 CTLFLAG_RD, &adapter->stats.prc255,
4187 "128-255 byte frames received");
4188 SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "rx_frames_256_511",
4189 CTLFLAG_RD, &adapter->stats.prc511,
4190 "256-511 byte frames received");
4191 SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "rx_frames_512_1023",
4192 CTLFLAG_RD, &adapter->stats.prc1023,
4193 "512-1023 byte frames received");
4194 SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "rx_frames_1024_1522",
4195 CTLFLAG_RD, &adapter->stats.prc1522,
4196 "1023-1522 byte frames received");
4197 SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "good_octets_recvd",
4198 CTLFLAG_RD, &adapter->stats.gorc,
4199 "Good Octets Received");
4201 /* Packet Transmission Stats */
4202 SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "good_octets_txd",
4203 CTLFLAG_RD, &adapter->stats.gotc,
4204 "Good Octets Transmitted");
4205 SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "total_pkts_txd",
4206 CTLFLAG_RD, &adapter->stats.tpt,
4207 "Total Packets Transmitted");
4208 SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "good_pkts_txd",
4209 CTLFLAG_RD, &adapter->stats.gptc,
4210 "Good Packets Transmitted");
4211 SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "bcast_pkts_txd",
4212 CTLFLAG_RD, &adapter->stats.bptc,
4213 "Broadcast Packets Transmitted");
4214 SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "mcast_pkts_txd",
4215 CTLFLAG_RD, &adapter->stats.mptc,
4216 "Multicast Packets Transmitted");
4217 SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "tx_frames_64",
4218 CTLFLAG_RD, &adapter->stats.ptc64,
4219 "64 byte frames transmitted ");
4220 SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "tx_frames_65_127",
4221 CTLFLAG_RD, &adapter->stats.ptc127,
4222 "65-127 byte frames transmitted");
4223 SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "tx_frames_128_255",
4224 CTLFLAG_RD, &adapter->stats.ptc255,
4225 "128-255 byte frames transmitted");
4226 SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "tx_frames_256_511",
4227 CTLFLAG_RD, &adapter->stats.ptc511,
4228 "256-511 byte frames transmitted");
4229 SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "tx_frames_512_1023",
4230 CTLFLAG_RD, &adapter->stats.ptc1023,
4231 "512-1023 byte frames transmitted");
4232 SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "tx_frames_1024_1522",
4233 CTLFLAG_RD, &adapter->stats.ptc1522,
4234 "1024-1522 byte frames transmitted");
4235 SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "tso_txd",
4236 CTLFLAG_RD, &adapter->stats.tsctc,
4237 "TSO Contexts Transmitted");
4238 SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "tso_ctx_fail",
4239 CTLFLAG_RD, &adapter->stats.tsctfc,
4240 "TSO Contexts Failed");
4243 /* Interrupt Stats */
4245 int_node = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, "interrupts",
4246 CTLFLAG_RD, NULL, "Interrupt Statistics");
4247 int_list = SYSCTL_CHILDREN(int_node);
4249 SYSCTL_ADD_UQUAD(ctx, int_list, OID_AUTO, "asserts",
4250 CTLFLAG_RD, &adapter->stats.iac,
4251 "Interrupt Assertion Count");
4253 SYSCTL_ADD_UQUAD(ctx, int_list, OID_AUTO, "rx_pkt_timer",
4254 CTLFLAG_RD, &adapter->stats.icrxptc,
4255 "Interrupt Cause Rx Pkt Timer Expire Count");
4257 SYSCTL_ADD_UQUAD(ctx, int_list, OID_AUTO, "rx_abs_timer",
4258 CTLFLAG_RD, &adapter->stats.icrxatc,
4259 "Interrupt Cause Rx Abs Timer Expire Count");
4261 SYSCTL_ADD_UQUAD(ctx, int_list, OID_AUTO, "tx_pkt_timer",
4262 CTLFLAG_RD, &adapter->stats.ictxptc,
4263 "Interrupt Cause Tx Pkt Timer Expire Count");
4265 SYSCTL_ADD_UQUAD(ctx, int_list, OID_AUTO, "tx_abs_timer",
4266 CTLFLAG_RD, &adapter->stats.ictxatc,
4267 "Interrupt Cause Tx Abs Timer Expire Count");
4269 SYSCTL_ADD_UQUAD(ctx, int_list, OID_AUTO, "tx_queue_empty",
4270 CTLFLAG_RD, &adapter->stats.ictxqec,
4271 "Interrupt Cause Tx Queue Empty Count");
4273 SYSCTL_ADD_UQUAD(ctx, int_list, OID_AUTO, "tx_queue_min_thresh",
4274 CTLFLAG_RD, &adapter->stats.ictxqmtc,
4275 "Interrupt Cause Tx Queue Min Thresh Count");
4277 SYSCTL_ADD_UQUAD(ctx, int_list, OID_AUTO, "rx_desc_min_thresh",
4278 CTLFLAG_RD, &adapter->stats.icrxdmtc,
4279 "Interrupt Cause Rx Desc Min Thresh Count");
4281 SYSCTL_ADD_UQUAD(ctx, int_list, OID_AUTO, "rx_overrun",
4282 CTLFLAG_RD, &adapter->stats.icrxoc,
4283 "Interrupt Cause Receiver Overrun Count");
4286 /**********************************************************************
4288 * This routine provides a way to dump out the adapter eeprom,
4289 * often a useful debug/service tool. This only dumps the first
4290 * 32 words, stuff that matters is in that extent.
4292 **********************************************************************/
4294 em_sysctl_nvm_info(SYSCTL_HANDLER_ARGS)
4296 struct adapter *adapter = (struct adapter *)arg1;
4301 error = sysctl_handle_int(oidp, &result, 0, req);
4303 if (error || !req->newptr)
4307 * This value will cause a hex dump of the
4308 * first 32 16-bit words of the EEPROM to
4312 em_print_nvm_info(adapter);
4318 em_print_nvm_info(struct adapter *adapter)
4323 /* Its a bit crude, but it gets the job done */
4324 printf("\nInterface EEPROM Dump:\n");
4325 printf("Offset\n0x0000 ");
4326 for (i = 0, j = 0; i < 32; i++, j++) {
4327 if (j == 8) { /* Make the offset block */
4329 printf("\n0x00%x0 ",row);
4331 e1000_read_nvm(&adapter->hw, i, 1, &eeprom_data);
4332 printf("%04x ", eeprom_data);
4338 em_sysctl_int_delay(SYSCTL_HANDLER_ARGS)
4340 struct em_int_delay_info *info;
4341 struct adapter *adapter;
4343 int error, usecs, ticks;
4345 info = (struct em_int_delay_info *) arg1;
4346 usecs = info->value;
4347 error = sysctl_handle_int(oidp, &usecs, 0, req);
4348 if (error != 0 || req->newptr == NULL)
4350 if (usecs < 0 || usecs > EM_TICKS_TO_USECS(65535))
4352 info->value = usecs;
4353 ticks = EM_USECS_TO_TICKS(usecs);
4354 if (info->offset == E1000_ITR) /* units are 256ns here */
4357 adapter = info->adapter;
4359 regval = E1000_READ_OFFSET(&adapter->hw, info->offset);
4360 regval = (regval & ~0xffff) | (ticks & 0xffff);
4361 /* Handle a few special cases. */
4362 switch (info->offset) {
4367 adapter->txd_cmd &= ~E1000_TXD_CMD_IDE;
4368 /* Don't write 0 into the TIDV register. */
4371 adapter->txd_cmd |= E1000_TXD_CMD_IDE;
4374 E1000_WRITE_OFFSET(&adapter->hw, info->offset, regval);
4379 em_add_int_delay_sysctl(struct adapter *adapter, const char *name,
4380 const char *description, struct em_int_delay_info *info,
4381 int offset, int value)
4383 info->adapter = adapter;
4384 info->offset = offset;
4385 info->value = value;
4386 SYSCTL_ADD_PROC(device_get_sysctl_ctx(adapter->dev),
4387 SYSCTL_CHILDREN(device_get_sysctl_tree(adapter->dev)),
4388 OID_AUTO, name, CTLTYPE_INT|CTLFLAG_RW,
4389 info, 0, em_sysctl_int_delay, "I", description);
4393 * Set flow control using sysctl:
4394 * Flow control values:
4401 em_set_flowcntl(SYSCTL_HANDLER_ARGS)
4404 static int input = 3; /* default is full */
4405 struct adapter *adapter = (struct adapter *) arg1;
4407 error = sysctl_handle_int(oidp, &input, 0, req);
4409 if ((error) || (req->newptr == NULL))
4412 if (input == adapter->fc) /* no change? */
4416 case e1000_fc_rx_pause:
4417 case e1000_fc_tx_pause:
4420 adapter->hw.fc.requested_mode = input;
4421 adapter->fc = input;
4428 adapter->hw.fc.current_mode = adapter->hw.fc.requested_mode;
4429 e1000_force_mac_fc(&adapter->hw);
4434 * Manage Energy Efficient Ethernet:
4436 * 0/1 - enabled/disabled
4439 em_sysctl_eee(SYSCTL_HANDLER_ARGS)
4441 struct adapter *adapter = (struct adapter *) arg1;
4444 value = adapter->hw.dev_spec.ich8lan.eee_disable;
4445 error = sysctl_handle_int(oidp, &value, 0, req);
4446 if (error || req->newptr == NULL)
4448 adapter->hw.dev_spec.ich8lan.eee_disable = (value != 0);
4449 em_if_init(adapter->ctx);
4455 em_sysctl_debug_info(SYSCTL_HANDLER_ARGS)
4457 struct adapter *adapter;
4462 error = sysctl_handle_int(oidp, &result, 0, req);
4464 if (error || !req->newptr)
4468 adapter = (struct adapter *) arg1;
4469 em_print_debug_info(adapter);
4476 em_get_rs(SYSCTL_HANDLER_ARGS)
4478 struct adapter *adapter = (struct adapter *) arg1;
4483 error = sysctl_handle_int(oidp, &result, 0, req);
4485 if (error || !req->newptr || result != 1)
4487 em_dump_rs(adapter);
4493 em_if_debug(if_ctx_t ctx)
4495 em_dump_rs(iflib_get_softc(ctx));
4499 * This routine is meant to be fluid, add whatever is
4500 * needed for debugging a problem. -jfv
4503 em_print_debug_info(struct adapter *adapter)
4505 device_t dev = iflib_get_dev(adapter->ctx);
4506 struct ifnet *ifp = iflib_get_ifp(adapter->ctx);
4507 struct tx_ring *txr = &adapter->tx_queues->txr;
4508 struct rx_ring *rxr = &adapter->rx_queues->rxr;
4510 if (if_getdrvflags(ifp) & IFF_DRV_RUNNING)
4511 printf("Interface is RUNNING ");
4513 printf("Interface is NOT RUNNING\n");
4515 if (if_getdrvflags(ifp) & IFF_DRV_OACTIVE)
4516 printf("and INACTIVE\n");
4518 printf("and ACTIVE\n");
4520 for (int i = 0; i < adapter->tx_num_queues; i++, txr++) {
4521 device_printf(dev, "TX Queue %d ------\n", i);
4522 device_printf(dev, "hw tdh = %d, hw tdt = %d\n",
4523 E1000_READ_REG(&adapter->hw, E1000_TDH(i)),
4524 E1000_READ_REG(&adapter->hw, E1000_TDT(i)));
4527 for (int j=0; j < adapter->rx_num_queues; j++, rxr++) {
4528 device_printf(dev, "RX Queue %d ------\n", j);
4529 device_printf(dev, "hw rdh = %d, hw rdt = %d\n",
4530 E1000_READ_REG(&adapter->hw, E1000_RDH(j)),
4531 E1000_READ_REG(&adapter->hw, E1000_RDT(j)));
4537 * Write a new value to the EEPROM increasing the number of MSIX
4538 * vectors from 3 to 5, for proper multiqueue support.
4541 em_enable_vectors_82574(if_ctx_t ctx)
4543 struct adapter *adapter = iflib_get_softc(ctx);
4544 struct e1000_hw *hw = &adapter->hw;
4545 device_t dev = iflib_get_dev(ctx);
4548 e1000_read_nvm(hw, EM_NVM_PCIE_CTRL, 1, &edata);
4549 printf("Current cap: %#06x\n", edata);
4550 if (((edata & EM_NVM_MSIX_N_MASK) >> EM_NVM_MSIX_N_SHIFT) != 4) {
4551 device_printf(dev, "Writing to eeprom: increasing "
4552 "reported MSIX vectors from 3 to 5...\n");
4553 edata &= ~(EM_NVM_MSIX_N_MASK);
4554 edata |= 4 << EM_NVM_MSIX_N_SHIFT;
4555 e1000_write_nvm(hw, EM_NVM_PCIE_CTRL, 1, &edata);
4556 e1000_update_nvm_checksum(hw);
4557 device_printf(dev, "Writing to eeprom: done\n");