1 /* bnx2x_vfpf.h: Broadcom Everest network driver. 2 * 3 * Copyright (c) 2011-2013 Broadcom Corporation 4 * 5 * Unless you and Broadcom execute a separate written software license 6 * agreement governing use of this software, this software is licensed to you 7 * under the terms of the GNU General Public License version 2, available 8 * at http://www.gnu.org/licenses/old-licenses/gpl-2.0.html (the "GPL"). 9 * 10 * Notwithstanding the above, under no circumstances may you combine this 11 * software in any way with any other Broadcom software provided under a 12 * license other than the GPL, without Broadcom's express prior written 13 * consent. 14 * 15 * Maintained by: Eilon Greenstein <eilong@broadcom.com> 16 * Written by: Ariel Elior <ariele@broadcom.com> 17 */ 18 #ifndef VF_PF_IF_H 19 #define VF_PF_IF_H 20 21 #ifdef CONFIG_BNX2X_SRIOV 22 23 /* Common definitions for all HVs */ 24 struct vf_pf_resc_request { 25 u8 num_rxqs; 26 u8 num_txqs; 27 u8 num_sbs; 28 u8 num_mac_filters; 29 u8 num_vlan_filters; 30 u8 num_mc_filters; /* No limit so superfluous */ 31 }; 32 33 struct hw_sb_info { 34 u8 hw_sb_id; /* aka absolute igu id, used to ack the sb */ 35 u8 sb_qid; /* used to update DHC for sb */ 36 }; 37 38 /* HW VF-PF channel definitions 39 * A.K.A VF-PF mailbox 40 */ 41 #define TLV_BUFFER_SIZE 1024 42 #define PF_VF_BULLETIN_SIZE 512 43 44 #define VFPF_QUEUE_FLG_TPA 0x0001 45 #define VFPF_QUEUE_FLG_TPA_IPV6 0x0002 46 #define VFPF_QUEUE_FLG_TPA_GRO 0x0004 47 #define VFPF_QUEUE_FLG_CACHE_ALIGN 0x0008 48 #define VFPF_QUEUE_FLG_STATS 0x0010 49 #define VFPF_QUEUE_FLG_OV 0x0020 50 #define VFPF_QUEUE_FLG_VLAN 0x0040 51 #define VFPF_QUEUE_FLG_COS 0x0080 52 #define VFPF_QUEUE_FLG_HC 0x0100 53 #define VFPF_QUEUE_FLG_DHC 0x0200 54 #define VFPF_QUEUE_FLG_LEADING_RSS 0x0400 55 56 #define VFPF_QUEUE_DROP_IP_CS_ERR (1 << 0) 57 #define VFPF_QUEUE_DROP_TCP_CS_ERR (1 << 1) 58 #define VFPF_QUEUE_DROP_TTL0 (1 << 2) 59 #define VFPF_QUEUE_DROP_UDP_CS_ERR (1 << 3) 60 61 #define VFPF_RX_MASK_ACCEPT_NONE 0x00000000 62 #define VFPF_RX_MASK_ACCEPT_MATCHED_UNICAST 0x00000001 63 #define VFPF_RX_MASK_ACCEPT_MATCHED_MULTICAST 0x00000002 64 #define VFPF_RX_MASK_ACCEPT_ALL_UNICAST 0x00000004 65 #define VFPF_RX_MASK_ACCEPT_ALL_MULTICAST 0x00000008 66 #define VFPF_RX_MASK_ACCEPT_BROADCAST 0x00000010 67 #define BULLETIN_CONTENT_SIZE (sizeof(struct pf_vf_bulletin_content)) 68 #define BULLETIN_ATTEMPTS 5 /* crc failures before throwing towel */ 69 #define BULLETIN_CRC_SEED 0 70 71 enum { 72 PFVF_STATUS_WAITING = 0, 73 PFVF_STATUS_SUCCESS, 74 PFVF_STATUS_FAILURE, 75 PFVF_STATUS_NOT_SUPPORTED, 76 PFVF_STATUS_NO_RESOURCE 77 }; 78 79 /* vf pf channel tlvs */ 80 /* general tlv header (used for both vf->pf request and pf->vf response) */ 81 struct channel_tlv { 82 u16 type; 83 u16 length; 84 }; 85 86 /* header of first vf->pf tlv carries the offset used to calculate response 87 * buffer address 88 */ 89 struct vfpf_first_tlv { 90 struct channel_tlv tl; 91 u32 resp_msg_offset; 92 }; 93 94 /* header of pf->vf tlvs, carries the status of handling the request */ 95 struct pfvf_tlv { 96 struct channel_tlv tl; 97 u8 status; 98 u8 padding[3]; 99 }; 100 101 /* response tlv used for most tlvs */ 102 struct pfvf_general_resp_tlv { 103 struct pfvf_tlv hdr; 104 }; 105 106 /* used to terminate and pad a tlv list */ 107 struct channel_list_end_tlv { 108 struct channel_tlv tl; 109 u8 padding[4]; 110 }; 111 112 /* Acquire */ 113 struct vfpf_acquire_tlv { 114 struct vfpf_first_tlv first_tlv; 115 116 struct vf_pf_vfdev_info { 117 /* the following fields are for debug purposes */ 118 u8 vf_id; /* ME register value */ 119 u8 vf_os; /* e.g. Linux, W2K8 */ 120 u8 padding[2]; 121 } vfdev_info; 122 123 struct vf_pf_resc_request resc_request; 124 125 aligned_u64 bulletin_addr; 126 }; 127 128 /* simple operation request on queue */ 129 struct vfpf_q_op_tlv { 130 struct vfpf_first_tlv first_tlv; 131 u8 vf_qid; 132 u8 padding[3]; 133 }; 134 135 /* receive side scaling tlv */ 136 struct vfpf_rss_tlv { 137 struct vfpf_first_tlv first_tlv; 138 u32 rss_flags; 139 #define VFPF_RSS_MODE_DISABLED (1 << 0) 140 #define VFPF_RSS_MODE_REGULAR (1 << 1) 141 #define VFPF_RSS_SET_SRCH (1 << 2) 142 #define VFPF_RSS_IPV4 (1 << 3) 143 #define VFPF_RSS_IPV4_TCP (1 << 4) 144 #define VFPF_RSS_IPV4_UDP (1 << 5) 145 #define VFPF_RSS_IPV6 (1 << 6) 146 #define VFPF_RSS_IPV6_TCP (1 << 7) 147 #define VFPF_RSS_IPV6_UDP (1 << 8) 148 u8 rss_result_mask; 149 u8 ind_table_size; 150 u8 rss_key_size; 151 u8 padding; 152 u8 ind_table[T_ETH_INDIRECTION_TABLE_SIZE]; 153 u32 rss_key[T_ETH_RSS_KEY]; /* hash values */ 154 }; 155 156 /* acquire response tlv - carries the allocated resources */ 157 struct pfvf_acquire_resp_tlv { 158 struct pfvf_tlv hdr; 159 struct pf_vf_pfdev_info { 160 u32 chip_num; 161 u32 pf_cap; 162 #define PFVF_CAP_RSS 0x00000001 163 #define PFVF_CAP_DHC 0x00000002 164 #define PFVF_CAP_TPA 0x00000004 165 char fw_ver[32]; 166 u16 db_size; 167 u8 indices_per_sb; 168 u8 padding; 169 } pfdev_info; 170 struct pf_vf_resc { 171 /* in case of status NO_RESOURCE in message hdr, pf will fill 172 * this struct with suggested amount of resources for next 173 * acquire request 174 */ 175 #define PFVF_MAX_QUEUES_PER_VF 16 176 #define PFVF_MAX_SBS_PER_VF 16 177 struct hw_sb_info hw_sbs[PFVF_MAX_SBS_PER_VF]; 178 u8 hw_qid[PFVF_MAX_QUEUES_PER_VF]; 179 u8 num_rxqs; 180 u8 num_txqs; 181 u8 num_sbs; 182 u8 num_mac_filters; 183 u8 num_vlan_filters; 184 u8 num_mc_filters; 185 u8 permanent_mac_addr[ETH_ALEN]; 186 u8 current_mac_addr[ETH_ALEN]; 187 u8 padding[2]; 188 } resc; 189 }; 190 191 #define VFPF_INIT_FLG_STATS_COALESCE (1 << 0) /* when set the VFs queues 192 * stats will be coalesced on 193 * the leading RSS queue 194 */ 195 196 /* Init VF */ 197 struct vfpf_init_tlv { 198 struct vfpf_first_tlv first_tlv; 199 aligned_u64 sb_addr[PFVF_MAX_SBS_PER_VF]; /* vf_sb based */ 200 aligned_u64 spq_addr; 201 aligned_u64 stats_addr; 202 u16 stats_stride; 203 u32 flags; 204 u32 padding[2]; 205 }; 206 207 /* Setup Queue */ 208 struct vfpf_setup_q_tlv { 209 struct vfpf_first_tlv first_tlv; 210 211 struct vf_pf_rxq_params { 212 /* physical addresses */ 213 aligned_u64 rcq_addr; 214 aligned_u64 rcq_np_addr; 215 aligned_u64 rxq_addr; 216 aligned_u64 sge_addr; 217 218 /* sb + hc info */ 219 u8 vf_sb; /* index in hw_sbs[] */ 220 u8 sb_index; /* Index in the SB */ 221 u16 hc_rate; /* desired interrupts per sec. */ 222 /* valid iff VFPF_QUEUE_FLG_HC */ 223 /* rx buffer info */ 224 u16 mtu; 225 u16 buf_sz; 226 u16 flags; /* VFPF_QUEUE_FLG_X flags */ 227 u16 stat_id; /* valid iff VFPF_QUEUE_FLG_STATS */ 228 229 /* valid iff VFPF_QUEUE_FLG_TPA */ 230 u16 sge_buf_sz; 231 u16 tpa_agg_sz; 232 u8 max_sge_pkt; 233 234 u8 drop_flags; /* VFPF_QUEUE_DROP_X, for Linux VMs 235 * all the flags are turned off 236 */ 237 238 u8 cache_line_log; /* VFPF_QUEUE_FLG_CACHE_ALIGN */ 239 u8 padding; 240 } rxq; 241 242 struct vf_pf_txq_params { 243 /* physical addresses */ 244 aligned_u64 txq_addr; 245 246 /* sb + hc info */ 247 u8 vf_sb; /* index in hw_sbs[] */ 248 u8 sb_index; /* Index in the SB */ 249 u16 hc_rate; /* desired interrupts per sec. */ 250 /* valid iff VFPF_QUEUE_FLG_HC */ 251 u32 flags; /* VFPF_QUEUE_FLG_X flags */ 252 u16 stat_id; /* valid iff VFPF_QUEUE_FLG_STATS */ 253 u8 traffic_type; /* see in setup_context() */ 254 u8 padding; 255 } txq; 256 257 u8 vf_qid; /* index in hw_qid[] */ 258 u8 param_valid; 259 #define VFPF_RXQ_VALID 0x01 260 #define VFPF_TXQ_VALID 0x02 261 u8 padding[2]; 262 }; 263 264 /* Set Queue Filters */ 265 struct vfpf_q_mac_vlan_filter { 266 u32 flags; 267 #define VFPF_Q_FILTER_DEST_MAC_VALID 0x01 268 #define VFPF_Q_FILTER_VLAN_TAG_VALID 0x02 269 #define VFPF_Q_FILTER_SET_MAC 0x100 /* set/clear */ 270 u8 mac[ETH_ALEN]; 271 u16 vlan_tag; 272 }; 273 274 /* configure queue filters */ 275 struct vfpf_set_q_filters_tlv { 276 struct vfpf_first_tlv first_tlv; 277 278 u32 flags; 279 #define VFPF_SET_Q_FILTERS_MAC_VLAN_CHANGED 0x01 280 #define VFPF_SET_Q_FILTERS_MULTICAST_CHANGED 0x02 281 #define VFPF_SET_Q_FILTERS_RX_MASK_CHANGED 0x04 282 283 u8 vf_qid; /* index in hw_qid[] */ 284 u8 n_mac_vlan_filters; 285 u8 n_multicast; 286 u8 padding; 287 288 #define PFVF_MAX_MAC_FILTERS 16 289 #define PFVF_MAX_VLAN_FILTERS 16 290 #define PFVF_MAX_FILTERS (PFVF_MAX_MAC_FILTERS +\ 291 PFVF_MAX_VLAN_FILTERS) 292 struct vfpf_q_mac_vlan_filter filters[PFVF_MAX_FILTERS]; 293 294 #define PFVF_MAX_MULTICAST_PER_VF 32 295 u8 multicast[PFVF_MAX_MULTICAST_PER_VF][ETH_ALEN]; 296 297 u32 rx_mask; /* see mask constants at the top of the file */ 298 }; 299 300 /* close VF (disable VF) */ 301 struct vfpf_close_tlv { 302 struct vfpf_first_tlv first_tlv; 303 u16 vf_id; /* for debug */ 304 u8 padding[2]; 305 }; 306 307 /* release the VF's acquired resources */ 308 struct vfpf_release_tlv { 309 struct vfpf_first_tlv first_tlv; 310 u16 vf_id; 311 u8 padding[2]; 312 }; 313 314 struct tlv_buffer_size { 315 u8 tlv_buffer[TLV_BUFFER_SIZE]; 316 }; 317 318 union vfpf_tlvs { 319 struct vfpf_first_tlv first_tlv; 320 struct vfpf_acquire_tlv acquire; 321 struct vfpf_init_tlv init; 322 struct vfpf_close_tlv close; 323 struct vfpf_q_op_tlv q_op; 324 struct vfpf_setup_q_tlv setup_q; 325 struct vfpf_set_q_filters_tlv set_q_filters; 326 struct vfpf_release_tlv release; 327 struct vfpf_rss_tlv update_rss; 328 struct channel_list_end_tlv list_end; 329 struct tlv_buffer_size tlv_buf_size; 330 }; 331 332 union pfvf_tlvs { 333 struct pfvf_general_resp_tlv general_resp; 334 struct pfvf_acquire_resp_tlv acquire_resp; 335 struct channel_list_end_tlv list_end; 336 struct tlv_buffer_size tlv_buf_size; 337 }; 338 339 /* This is a structure which is allocated in the VF, which the PF may update 340 * when it deems it necessary to do so. The bulletin board is sampled 341 * periodically by the VF. A copy per VF is maintained in the PF (to prevent 342 * loss of data upon multiple updates (or the need for read modify write)). 343 */ 344 struct pf_vf_bulletin_size { 345 u8 size[PF_VF_BULLETIN_SIZE]; 346 }; 347 348 struct pf_vf_bulletin_content { 349 u32 crc; /* crc of structure to ensure is not in 350 * mid-update 351 */ 352 u16 version; 353 u16 length; 354 355 aligned_u64 valid_bitmap; /* bitmap indicating which fields 356 * hold valid values 357 */ 358 359 #define MAC_ADDR_VALID 0 /* alert the vf that a new mac address 360 * is available for it 361 */ 362 #define VLAN_VALID 1 /* when set, the vf should not access 363 * the vfpf channel 364 */ 365 #define CHANNEL_DOWN 2 /* vfpf channel is disabled. VFs are not 366 * to attempt to send messages on the 367 * channel after this bit is set 368 */ 369 u8 mac[ETH_ALEN]; 370 u8 mac_padding[2]; 371 372 u16 vlan; 373 u8 vlan_padding[6]; 374 }; 375 376 union pf_vf_bulletin { 377 struct pf_vf_bulletin_content content; 378 struct pf_vf_bulletin_size size; 379 }; 380 381 #define MAX_TLVS_IN_LIST 50 382 383 enum channel_tlvs { 384 CHANNEL_TLV_NONE, 385 CHANNEL_TLV_ACQUIRE, 386 CHANNEL_TLV_INIT, 387 CHANNEL_TLV_SETUP_Q, 388 CHANNEL_TLV_SET_Q_FILTERS, 389 CHANNEL_TLV_ACTIVATE_Q, 390 CHANNEL_TLV_DEACTIVATE_Q, 391 CHANNEL_TLV_TEARDOWN_Q, 392 CHANNEL_TLV_CLOSE, 393 CHANNEL_TLV_RELEASE, 394 CHANNEL_TLV_UPDATE_RSS_DEPRECATED, 395 CHANNEL_TLV_PF_RELEASE_VF, 396 CHANNEL_TLV_LIST_END, 397 CHANNEL_TLV_FLR, 398 CHANNEL_TLV_PF_SET_MAC, 399 CHANNEL_TLV_PF_SET_VLAN, 400 CHANNEL_TLV_UPDATE_RSS, 401 CHANNEL_TLV_MAX 402 }; 403 404 #endif /* CONFIG_BNX2X_SRIOV */ 405 #endif /* VF_PF_IF_H */ 406