1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright 2010 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #include <hxge_impl.h> 27 #include <hxge_rxdma.h> 28 #include <hpi.h> 29 #include <hpi_vir.h> 30 31 /* 32 * Number of blocks to accumulate before re-enabling DMA 33 * when we get RBR empty. 34 */ 35 #define HXGE_RBR_EMPTY_THRESHOLD 64 36 37 /* 38 * Globals: tunable parameters (/etc/system or adb) 39 * 40 */ 41 extern uint32_t hxge_rbr_size; 42 extern uint32_t hxge_rcr_size; 43 extern uint32_t hxge_rbr_spare_size; 44 extern uint32_t hxge_mblks_pending; 45 46 /* 47 * Tunables to manage the receive buffer blocks. 48 * 49 * hxge_rx_threshold_hi: copy all buffers. 50 * hxge_rx_bcopy_size_type: receive buffer block size type. 51 * hxge_rx_threshold_lo: copy only up to tunable block size type. 52 */ 53 extern hxge_rxbuf_threshold_t hxge_rx_threshold_hi; 54 extern hxge_rxbuf_type_t hxge_rx_buf_size_type; 55 extern hxge_rxbuf_threshold_t hxge_rx_threshold_lo; 56 57 /* 58 * Static local functions. 59 */ 60 static hxge_status_t hxge_map_rxdma(p_hxge_t hxgep); 61 static void hxge_unmap_rxdma(p_hxge_t hxgep); 62 static hxge_status_t hxge_rxdma_hw_start_common(p_hxge_t hxgep); 63 static hxge_status_t hxge_rxdma_hw_start(p_hxge_t hxgep); 64 static void hxge_rxdma_hw_stop(p_hxge_t hxgep); 65 static hxge_status_t hxge_map_rxdma_channel(p_hxge_t hxgep, uint16_t channel, 66 p_hxge_dma_common_t *dma_buf_p, p_rx_rbr_ring_t *rbr_p, 67 uint32_t num_chunks, p_hxge_dma_common_t *dma_rbr_cntl_p, 68 p_hxge_dma_common_t *dma_rcr_cntl_p, p_hxge_dma_common_t *dma_mbox_cntl_p, 69 p_rx_rcr_ring_t *rcr_p, p_rx_mbox_t *rx_mbox_p); 70 static void hxge_unmap_rxdma_channel(p_hxge_t hxgep, uint16_t channel, 71 p_rx_rbr_ring_t rbr_p, p_rx_rcr_ring_t rcr_p, p_rx_mbox_t rx_mbox_p); 72 static hxge_status_t hxge_map_rxdma_channel_cfg_ring(p_hxge_t hxgep, 73 uint16_t dma_channel, p_hxge_dma_common_t *dma_rbr_cntl_p, 74 p_hxge_dma_common_t *dma_rcr_cntl_p, p_hxge_dma_common_t *dma_mbox_cntl_p, 75 p_rx_rbr_ring_t *rbr_p, p_rx_rcr_ring_t *rcr_p, p_rx_mbox_t *rx_mbox_p); 76 static void hxge_unmap_rxdma_channel_cfg_ring(p_hxge_t hxgep, 77 p_rx_rcr_ring_t rcr_p, p_rx_mbox_t rx_mbox_p); 78 static hxge_status_t hxge_map_rxdma_channel_buf_ring(p_hxge_t hxgep, 79 uint16_t channel, p_hxge_dma_common_t *dma_buf_p, 80 p_rx_rbr_ring_t *rbr_p, uint32_t num_chunks); 81 static void hxge_unmap_rxdma_channel_buf_ring(p_hxge_t hxgep, 82 p_rx_rbr_ring_t rbr_p); 83 static hxge_status_t hxge_rxdma_start_channel(p_hxge_t hxgep, uint16_t channel, 84 p_rx_rbr_ring_t rbr_p, p_rx_rcr_ring_t rcr_p, p_rx_mbox_t mbox_p, 85 int n_init_kick); 86 static hxge_status_t hxge_rxdma_stop_channel(p_hxge_t hxgep, uint16_t channel); 87 static mblk_t *hxge_rx_pkts(p_hxge_t hxgep, uint_t vindex, p_hxge_ldv_t ldvp, 88 p_rx_rcr_ring_t rcr_p, rdc_stat_t cs, int bytes_to_read); 89 static uint32_t hxge_scan_for_last_eop(p_rx_rcr_ring_t rcr_p, 90 p_rcr_entry_t rcr_desc_rd_head_p, uint32_t num_rcrs); 91 static void hxge_receive_packet(p_hxge_t hxgep, p_rx_rcr_ring_t rcr_p, 92 p_rcr_entry_t rcr_desc_rd_head_p, boolean_t *multi_p, 93 mblk_t ** mp, mblk_t ** mp_cont, uint32_t *invalid_rcr_entry); 94 static hxge_status_t hxge_disable_rxdma_channel(p_hxge_t hxgep, 95 uint16_t channel); 96 static p_rx_msg_t hxge_allocb(size_t, uint32_t, p_hxge_dma_common_t); 97 static void hxge_freeb(p_rx_msg_t); 98 static hxge_status_t hxge_rx_err_evnts(p_hxge_t hxgep, uint_t index, 99 p_hxge_ldv_t ldvp, rdc_stat_t cs); 100 static hxge_status_t hxge_rxbuf_index_info_init(p_hxge_t hxgep, 101 p_rx_rbr_ring_t rx_dmap); 102 static hxge_status_t hxge_rxdma_fatal_err_recover(p_hxge_t hxgep, 103 uint16_t channel); 104 static hxge_status_t hxge_rx_port_fatal_err_recover(p_hxge_t hxgep); 105 static void hxge_rbr_empty_restore(p_hxge_t hxgep, 106 p_rx_rbr_ring_t rx_rbr_p); 107 108 hxge_status_t 109 hxge_init_rxdma_channels(p_hxge_t hxgep) 110 { 111 hxge_status_t status = HXGE_OK; 112 block_reset_t reset_reg; 113 int i; 114 115 HXGE_DEBUG_MSG((hxgep, MEM2_CTL, "==> hxge_init_rxdma_channels")); 116 117 for (i = 0; i < HXGE_MAX_RDCS; i++) 118 hxgep->rdc_first_intr[i] = B_TRUE; 119 120 /* Reset RDC block from PEU to clear any previous state */ 121 reset_reg.value = 0; 122 reset_reg.bits.rdc_rst = 1; 123 HXGE_REG_WR32(hxgep->hpi_handle, BLOCK_RESET, reset_reg.value); 124 HXGE_DELAY(1000); 125 126 status = hxge_map_rxdma(hxgep); 127 if (status != HXGE_OK) { 128 HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL, 129 "<== hxge_init_rxdma: status 0x%x", status)); 130 return (status); 131 } 132 133 status = hxge_rxdma_hw_start_common(hxgep); 134 if (status != HXGE_OK) { 135 hxge_unmap_rxdma(hxgep); 136 } 137 138 status = hxge_rxdma_hw_start(hxgep); 139 if (status != HXGE_OK) { 140 hxge_unmap_rxdma(hxgep); 141 } 142 143 HXGE_DEBUG_MSG((hxgep, MEM2_CTL, 144 "<== hxge_init_rxdma_channels: status 0x%x", status)); 145 return (status); 146 } 147 148 void 149 hxge_uninit_rxdma_channels(p_hxge_t hxgep) 150 { 151 HXGE_DEBUG_MSG((hxgep, MEM2_CTL, "==> hxge_uninit_rxdma_channels")); 152 153 hxge_rxdma_hw_stop(hxgep); 154 hxge_unmap_rxdma(hxgep); 155 156 HXGE_DEBUG_MSG((hxgep, MEM2_CTL, "<== hxge_uinit_rxdma_channels")); 157 } 158 159 hxge_status_t 160 hxge_init_rxdma_channel_cntl_stat(p_hxge_t hxgep, uint16_t channel, 161 rdc_stat_t *cs_p) 162 { 163 hpi_handle_t handle; 164 hpi_status_t rs = HPI_SUCCESS; 165 hxge_status_t status = HXGE_OK; 166 167 HXGE_DEBUG_MSG((hxgep, DMA_CTL, 168 "<== hxge_init_rxdma_channel_cntl_stat")); 169 170 handle = HXGE_DEV_HPI_HANDLE(hxgep); 171 rs = hpi_rxdma_control_status(handle, OP_SET, channel, cs_p); 172 173 if (rs != HPI_SUCCESS) { 174 status = HXGE_ERROR | rs; 175 } 176 return (status); 177 } 178 179 180 hxge_status_t 181 hxge_enable_rxdma_channel(p_hxge_t hxgep, uint16_t channel, 182 p_rx_rbr_ring_t rbr_p, p_rx_rcr_ring_t rcr_p, p_rx_mbox_t mbox_p, 183 int n_init_kick) 184 { 185 hpi_handle_t handle; 186 rdc_desc_cfg_t rdc_desc; 187 rdc_rcr_cfg_b_t *cfgb_p; 188 hpi_status_t rs = HPI_SUCCESS; 189 190 HXGE_DEBUG_MSG((hxgep, DMA_CTL, "==> hxge_enable_rxdma_channel")); 191 handle = HXGE_DEV_HPI_HANDLE(hxgep); 192 193 /* 194 * Use configuration data composed at init time. Write to hardware the 195 * receive ring configurations. 196 */ 197 rdc_desc.mbox_enable = 1; 198 rdc_desc.mbox_addr = mbox_p->mbox_addr; 199 HXGE_DEBUG_MSG((hxgep, RX_CTL, 200 "==> hxge_enable_rxdma_channel: mboxp $%p($%p)", 201 mbox_p->mbox_addr, rdc_desc.mbox_addr)); 202 203 rdc_desc.rbr_len = rbr_p->rbb_max; 204 rdc_desc.rbr_addr = rbr_p->rbr_addr; 205 206 switch (hxgep->rx_bksize_code) { 207 case RBR_BKSIZE_4K: 208 rdc_desc.page_size = SIZE_4KB; 209 break; 210 case RBR_BKSIZE_8K: 211 rdc_desc.page_size = SIZE_8KB; 212 break; 213 } 214 215 rdc_desc.size0 = rbr_p->hpi_pkt_buf_size0; 216 rdc_desc.valid0 = 1; 217 218 rdc_desc.size1 = rbr_p->hpi_pkt_buf_size1; 219 rdc_desc.valid1 = 1; 220 221 rdc_desc.size2 = rbr_p->hpi_pkt_buf_size2; 222 rdc_desc.valid2 = 1; 223 224 rdc_desc.full_hdr = rcr_p->full_hdr_flag; 225 rdc_desc.offset = rcr_p->sw_priv_hdr_len; 226 227 rdc_desc.rcr_len = rcr_p->comp_size; 228 rdc_desc.rcr_addr = rcr_p->rcr_addr; 229 230 cfgb_p = &(rcr_p->rcr_cfgb); 231 rdc_desc.rcr_threshold = cfgb_p->bits.pthres; 232 rdc_desc.rcr_timeout = cfgb_p->bits.timeout; 233 rdc_desc.rcr_timeout_enable = cfgb_p->bits.entout; 234 235 HXGE_DEBUG_MSG((hxgep, DMA_CTL, "==> hxge_enable_rxdma_channel: " 236 "rbr_len qlen %d pagesize code %d rcr_len %d", 237 rdc_desc.rbr_len, rdc_desc.page_size, rdc_desc.rcr_len)); 238 HXGE_DEBUG_MSG((hxgep, DMA_CTL, "==> hxge_enable_rxdma_channel: " 239 "size 0 %d size 1 %d size 2 %d", 240 rbr_p->hpi_pkt_buf_size0, rbr_p->hpi_pkt_buf_size1, 241 rbr_p->hpi_pkt_buf_size2)); 242 243 rs = hpi_rxdma_cfg_rdc_ring(handle, rbr_p->rdc, &rdc_desc); 244 if (rs != HPI_SUCCESS) { 245 return (HXGE_ERROR | rs); 246 } 247 248 /* 249 * Enable the timeout and threshold. 250 */ 251 rs = hpi_rxdma_cfg_rdc_rcr_threshold(handle, channel, 252 rdc_desc.rcr_threshold); 253 if (rs != HPI_SUCCESS) { 254 return (HXGE_ERROR | rs); 255 } 256 257 rs = hpi_rxdma_cfg_rdc_rcr_timeout(handle, channel, 258 rdc_desc.rcr_timeout); 259 if (rs != HPI_SUCCESS) { 260 return (HXGE_ERROR | rs); 261 } 262 263 /* Kick the DMA engine */ 264 hpi_rxdma_rdc_rbr_kick(handle, channel, n_init_kick); 265 266 /* Clear the rbr empty bit */ 267 (void) hpi_rxdma_channel_rbr_empty_clear(handle, channel); 268 269 /* 270 * Enable the DMA 271 */ 272 rs = hpi_rxdma_cfg_rdc_enable(handle, channel); 273 if (rs != HPI_SUCCESS) { 274 return (HXGE_ERROR | rs); 275 } 276 277 HXGE_DEBUG_MSG((hxgep, DMA_CTL, "<== hxge_enable_rxdma_channel")); 278 279 return (HXGE_OK); 280 } 281 282 static hxge_status_t 283 hxge_disable_rxdma_channel(p_hxge_t hxgep, uint16_t channel) 284 { 285 hpi_handle_t handle; 286 hpi_status_t rs = HPI_SUCCESS; 287 288 HXGE_DEBUG_MSG((hxgep, DMA_CTL, "==> hxge_disable_rxdma_channel")); 289 290 handle = HXGE_DEV_HPI_HANDLE(hxgep); 291 292 /* disable the DMA */ 293 rs = hpi_rxdma_cfg_rdc_disable(handle, channel); 294 if (rs != HPI_SUCCESS) { 295 HXGE_DEBUG_MSG((hxgep, RX_CTL, 296 "<== hxge_disable_rxdma_channel:failed (0x%x)", rs)); 297 return (HXGE_ERROR | rs); 298 } 299 HXGE_DEBUG_MSG((hxgep, DMA_CTL, "<== hxge_disable_rxdma_channel")); 300 return (HXGE_OK); 301 } 302 303 hxge_status_t 304 hxge_rxdma_channel_rcrflush(p_hxge_t hxgep, uint8_t channel) 305 { 306 hpi_handle_t handle; 307 hxge_status_t status = HXGE_OK; 308 309 HXGE_DEBUG_MSG((hxgep, DMA_CTL, 310 "==> hxge_rxdma_channel_rcrflush")); 311 312 handle = HXGE_DEV_HPI_HANDLE(hxgep); 313 hpi_rxdma_rdc_rcr_flush(handle, channel); 314 315 HXGE_DEBUG_MSG((hxgep, DMA_CTL, 316 "<== hxge_rxdma_channel_rcrflush")); 317 return (status); 318 319 } 320 321 #define MID_INDEX(l, r) ((r + l + 1) >> 1) 322 323 #define TO_LEFT -1 324 #define TO_RIGHT 1 325 #define BOTH_RIGHT (TO_RIGHT + TO_RIGHT) 326 #define BOTH_LEFT (TO_LEFT + TO_LEFT) 327 #define IN_MIDDLE (TO_RIGHT + TO_LEFT) 328 #define NO_HINT 0xffffffff 329 330 /*ARGSUSED*/ 331 hxge_status_t 332 hxge_rxbuf_pp_to_vp(p_hxge_t hxgep, p_rx_rbr_ring_t rbr_p, 333 uint8_t pktbufsz_type, uint64_t *pkt_buf_addr_pp, 334 uint64_t **pkt_buf_addr_p, uint32_t *bufoffset, uint32_t *msg_index) 335 { 336 int bufsize; 337 uint64_t pktbuf_pp; 338 uint64_t dvma_addr; 339 rxring_info_t *ring_info; 340 int base_side, end_side; 341 int r_index, l_index, anchor_index; 342 int found, search_done; 343 uint32_t offset, chunk_size, block_size, page_size_mask; 344 uint32_t chunk_index, block_index, total_index; 345 int max_iterations, iteration; 346 rxbuf_index_info_t *bufinfo; 347 348 HXGE_DEBUG_MSG((hxgep, RX2_CTL, "==> hxge_rxbuf_pp_to_vp")); 349 350 HXGE_DEBUG_MSG((hxgep, RX2_CTL, 351 "==> hxge_rxbuf_pp_to_vp: buf_pp $%p btype %d", 352 pkt_buf_addr_pp, pktbufsz_type)); 353 354 #if defined(__i386) 355 pktbuf_pp = (uint64_t)(uint32_t)pkt_buf_addr_pp; 356 #else 357 pktbuf_pp = (uint64_t)pkt_buf_addr_pp; 358 #endif 359 360 switch (pktbufsz_type) { 361 case 0: 362 bufsize = rbr_p->pkt_buf_size0; 363 break; 364 case 1: 365 bufsize = rbr_p->pkt_buf_size1; 366 break; 367 case 2: 368 bufsize = rbr_p->pkt_buf_size2; 369 break; 370 case RCR_SINGLE_BLOCK: 371 bufsize = 0; 372 anchor_index = 0; 373 break; 374 default: 375 return (HXGE_ERROR); 376 } 377 378 if (rbr_p->num_blocks == 1) { 379 anchor_index = 0; 380 ring_info = rbr_p->ring_info; 381 bufinfo = (rxbuf_index_info_t *)ring_info->buffer; 382 383 HXGE_DEBUG_MSG((hxgep, RX2_CTL, 384 "==> hxge_rxbuf_pp_to_vp: (found, 1 block) " 385 "buf_pp $%p btype %d anchor_index %d bufinfo $%p", 386 pkt_buf_addr_pp, pktbufsz_type, anchor_index, bufinfo)); 387 388 goto found_index; 389 } 390 391 HXGE_DEBUG_MSG((hxgep, RX2_CTL, 392 "==> hxge_rxbuf_pp_to_vp: buf_pp $%p btype %d anchor_index %d", 393 pkt_buf_addr_pp, pktbufsz_type, anchor_index)); 394 395 ring_info = rbr_p->ring_info; 396 found = B_FALSE; 397 bufinfo = (rxbuf_index_info_t *)ring_info->buffer; 398 iteration = 0; 399 max_iterations = ring_info->max_iterations; 400 401 /* 402 * First check if this block have been seen recently. This is indicated 403 * by a hint which is initialized when the first buffer of the block is 404 * seen. The hint is reset when the last buffer of the block has been 405 * processed. As three block sizes are supported, three hints are kept. 406 * The idea behind the hints is that once the hardware uses a block 407 * for a buffer of that size, it will use it exclusively for that size 408 * and will use it until it is exhausted. It is assumed that there 409 * would a single block being used for the same buffer sizes at any 410 * given time. 411 */ 412 if (ring_info->hint[pktbufsz_type] != NO_HINT) { 413 anchor_index = ring_info->hint[pktbufsz_type]; 414 dvma_addr = bufinfo[anchor_index].dvma_addr; 415 chunk_size = bufinfo[anchor_index].buf_size; 416 if ((pktbuf_pp >= dvma_addr) && 417 (pktbuf_pp < (dvma_addr + chunk_size))) { 418 found = B_TRUE; 419 /* 420 * check if this is the last buffer in the block If so, 421 * then reset the hint for the size; 422 */ 423 424 if ((pktbuf_pp + bufsize) >= (dvma_addr + chunk_size)) 425 ring_info->hint[pktbufsz_type] = NO_HINT; 426 } 427 } 428 429 if (found == B_FALSE) { 430 HXGE_DEBUG_MSG((hxgep, RX2_CTL, 431 "==> hxge_rxbuf_pp_to_vp: (!found)" 432 "buf_pp $%p btype %d anchor_index %d", 433 pkt_buf_addr_pp, pktbufsz_type, anchor_index)); 434 435 /* 436 * This is the first buffer of the block of this size. Need to 437 * search the whole information array. the search algorithm 438 * uses a binary tree search algorithm. It assumes that the 439 * information is already sorted with increasing order info[0] 440 * < info[1] < info[2] .... < info[n-1] where n is the size of 441 * the information array 442 */ 443 r_index = rbr_p->num_blocks - 1; 444 l_index = 0; 445 search_done = B_FALSE; 446 anchor_index = MID_INDEX(r_index, l_index); 447 while (search_done == B_FALSE) { 448 if ((r_index == l_index) || 449 (iteration >= max_iterations)) 450 search_done = B_TRUE; 451 452 end_side = TO_RIGHT; /* to the right */ 453 base_side = TO_LEFT; /* to the left */ 454 /* read the DVMA address information and sort it */ 455 dvma_addr = bufinfo[anchor_index].dvma_addr; 456 chunk_size = bufinfo[anchor_index].buf_size; 457 458 HXGE_DEBUG_MSG((hxgep, RX2_CTL, 459 "==> hxge_rxbuf_pp_to_vp: (searching)" 460 "buf_pp $%p btype %d " 461 "anchor_index %d chunk_size %d dvmaaddr $%p", 462 pkt_buf_addr_pp, pktbufsz_type, anchor_index, 463 chunk_size, dvma_addr)); 464 465 if (pktbuf_pp >= dvma_addr) 466 base_side = TO_RIGHT; /* to the right */ 467 if (pktbuf_pp < (dvma_addr + chunk_size)) 468 end_side = TO_LEFT; /* to the left */ 469 470 switch (base_side + end_side) { 471 case IN_MIDDLE: 472 /* found */ 473 found = B_TRUE; 474 search_done = B_TRUE; 475 if ((pktbuf_pp + bufsize) < 476 (dvma_addr + chunk_size)) 477 ring_info->hint[pktbufsz_type] = 478 bufinfo[anchor_index].buf_index; 479 break; 480 case BOTH_RIGHT: 481 /* not found: go to the right */ 482 l_index = anchor_index + 1; 483 anchor_index = MID_INDEX(r_index, l_index); 484 break; 485 486 case BOTH_LEFT: 487 /* not found: go to the left */ 488 r_index = anchor_index - 1; 489 anchor_index = MID_INDEX(r_index, l_index); 490 break; 491 default: /* should not come here */ 492 return (HXGE_ERROR); 493 } 494 iteration++; 495 } 496 497 HXGE_DEBUG_MSG((hxgep, RX2_CTL, 498 "==> hxge_rxbuf_pp_to_vp: (search done)" 499 "buf_pp $%p btype %d anchor_index %d", 500 pkt_buf_addr_pp, pktbufsz_type, anchor_index)); 501 } 502 503 if (found == B_FALSE) { 504 HXGE_DEBUG_MSG((hxgep, RX2_CTL, 505 "==> hxge_rxbuf_pp_to_vp: (search failed)" 506 "buf_pp $%p btype %d anchor_index %d", 507 pkt_buf_addr_pp, pktbufsz_type, anchor_index)); 508 return (HXGE_ERROR); 509 } 510 511 found_index: 512 HXGE_DEBUG_MSG((hxgep, RX2_CTL, 513 "==> hxge_rxbuf_pp_to_vp: (FOUND1)" 514 "buf_pp $%p btype %d bufsize %d anchor_index %d", 515 pkt_buf_addr_pp, pktbufsz_type, bufsize, anchor_index)); 516 517 /* index of the first block in this chunk */ 518 chunk_index = bufinfo[anchor_index].start_index; 519 dvma_addr = bufinfo[anchor_index].dvma_addr; 520 page_size_mask = ring_info->block_size_mask; 521 522 HXGE_DEBUG_MSG((hxgep, RX2_CTL, 523 "==> hxge_rxbuf_pp_to_vp: (FOUND3), get chunk)" 524 "buf_pp $%p btype %d bufsize %d " 525 "anchor_index %d chunk_index %d dvma $%p", 526 pkt_buf_addr_pp, pktbufsz_type, bufsize, 527 anchor_index, chunk_index, dvma_addr)); 528 529 offset = pktbuf_pp - dvma_addr; /* offset within the chunk */ 530 block_size = rbr_p->block_size; /* System block(page) size */ 531 532 HXGE_DEBUG_MSG((hxgep, RX2_CTL, 533 "==> hxge_rxbuf_pp_to_vp: (FOUND4), get chunk)" 534 "buf_pp $%p btype %d bufsize %d " 535 "anchor_index %d chunk_index %d dvma $%p " 536 "offset %d block_size %d", 537 pkt_buf_addr_pp, pktbufsz_type, bufsize, anchor_index, 538 chunk_index, dvma_addr, offset, block_size)); 539 HXGE_DEBUG_MSG((hxgep, RX2_CTL, "==> getting total index")); 540 541 block_index = (offset / block_size); /* index within chunk */ 542 total_index = chunk_index + block_index; 543 544 HXGE_DEBUG_MSG((hxgep, RX2_CTL, 545 "==> hxge_rxbuf_pp_to_vp: " 546 "total_index %d dvma_addr $%p " 547 "offset %d block_size %d " 548 "block_index %d ", 549 total_index, dvma_addr, offset, block_size, block_index)); 550 551 #if defined(__i386) 552 *pkt_buf_addr_p = (uint64_t *)((uint32_t)bufinfo[anchor_index].kaddr + 553 (uint32_t)offset); 554 #else 555 *pkt_buf_addr_p = (uint64_t *)((uint64_t)bufinfo[anchor_index].kaddr + 556 offset); 557 #endif 558 559 HXGE_DEBUG_MSG((hxgep, RX2_CTL, 560 "==> hxge_rxbuf_pp_to_vp: " 561 "total_index %d dvma_addr $%p " 562 "offset %d block_size %d " 563 "block_index %d " 564 "*pkt_buf_addr_p $%p", 565 total_index, dvma_addr, offset, block_size, 566 block_index, *pkt_buf_addr_p)); 567 568 *msg_index = total_index; 569 *bufoffset = (offset & page_size_mask); 570 571 HXGE_DEBUG_MSG((hxgep, RX2_CTL, 572 "==> hxge_rxbuf_pp_to_vp: get msg index: " 573 "msg_index %d bufoffset_index %d", 574 *msg_index, *bufoffset)); 575 HXGE_DEBUG_MSG((hxgep, RX2_CTL, "<== hxge_rxbuf_pp_to_vp")); 576 577 return (HXGE_OK); 578 } 579 580 581 /* 582 * used by quick sort (qsort) function 583 * to perform comparison 584 */ 585 static int 586 hxge_sort_compare(const void *p1, const void *p2) 587 { 588 589 rxbuf_index_info_t *a, *b; 590 591 a = (rxbuf_index_info_t *)p1; 592 b = (rxbuf_index_info_t *)p2; 593 594 if (a->dvma_addr > b->dvma_addr) 595 return (1); 596 if (a->dvma_addr < b->dvma_addr) 597 return (-1); 598 return (0); 599 } 600 601 /* 602 * Grabbed this sort implementation from common/syscall/avl.c 603 * 604 * Generic shellsort, from K&R (1st ed, p 58.), somewhat modified. 605 * v = Ptr to array/vector of objs 606 * n = # objs in the array 607 * s = size of each obj (must be multiples of a word size) 608 * f = ptr to function to compare two objs 609 * returns (-1 = less than, 0 = equal, 1 = greater than 610 */ 611 void 612 hxge_ksort(caddr_t v, int n, int s, int (*f) ()) 613 { 614 int g, i, j, ii; 615 unsigned int *p1, *p2; 616 unsigned int tmp; 617 618 /* No work to do */ 619 if (v == NULL || n <= 1) 620 return; 621 /* Sanity check on arguments */ 622 ASSERT(((uintptr_t)v & 0x3) == 0 && (s & 0x3) == 0); 623 ASSERT(s > 0); 624 625 for (g = n / 2; g > 0; g /= 2) { 626 for (i = g; i < n; i++) { 627 for (j = i - g; j >= 0 && 628 (*f) (v + j * s, v + (j + g) * s) == 1; j -= g) { 629 p1 = (unsigned *)(v + j * s); 630 p2 = (unsigned *)(v + (j + g) * s); 631 for (ii = 0; ii < s / 4; ii++) { 632 tmp = *p1; 633 *p1++ = *p2; 634 *p2++ = tmp; 635 } 636 } 637 } 638 } 639 } 640 641 /* 642 * Initialize data structures required for rxdma 643 * buffer dvma->vmem address lookup 644 */ 645 /*ARGSUSED*/ 646 static hxge_status_t 647 hxge_rxbuf_index_info_init(p_hxge_t hxgep, p_rx_rbr_ring_t rbrp) 648 { 649 int index; 650 rxring_info_t *ring_info; 651 int max_iteration = 0, max_index = 0; 652 653 HXGE_DEBUG_MSG((hxgep, DMA_CTL, "==> hxge_rxbuf_index_info_init")); 654 655 ring_info = rbrp->ring_info; 656 ring_info->hint[0] = NO_HINT; 657 ring_info->hint[1] = NO_HINT; 658 ring_info->hint[2] = NO_HINT; 659 ring_info->hint[3] = NO_HINT; 660 max_index = rbrp->num_blocks; 661 662 /* read the DVMA address information and sort it */ 663 /* do init of the information array */ 664 665 HXGE_DEBUG_MSG((hxgep, DMA2_CTL, 666 " hxge_rxbuf_index_info_init Sort ptrs")); 667 668 /* sort the array */ 669 hxge_ksort((void *) ring_info->buffer, max_index, 670 sizeof (rxbuf_index_info_t), hxge_sort_compare); 671 672 for (index = 0; index < max_index; index++) { 673 HXGE_DEBUG_MSG((hxgep, DMA2_CTL, 674 " hxge_rxbuf_index_info_init: sorted chunk %d " 675 " ioaddr $%p kaddr $%p size %x", 676 index, ring_info->buffer[index].dvma_addr, 677 ring_info->buffer[index].kaddr, 678 ring_info->buffer[index].buf_size)); 679 } 680 681 max_iteration = 0; 682 while (max_index >= (1ULL << max_iteration)) 683 max_iteration++; 684 ring_info->max_iterations = max_iteration + 1; 685 686 HXGE_DEBUG_MSG((hxgep, DMA2_CTL, 687 " hxge_rxbuf_index_info_init Find max iter %d", 688 ring_info->max_iterations)); 689 HXGE_DEBUG_MSG((hxgep, DMA_CTL, "<== hxge_rxbuf_index_info_init")); 690 691 return (HXGE_OK); 692 } 693 694 /*ARGSUSED*/ 695 void 696 hxge_dump_rcr_entry(p_hxge_t hxgep, p_rcr_entry_t entry_p) 697 { 698 #ifdef HXGE_DEBUG 699 700 uint32_t bptr; 701 uint64_t pp; 702 703 bptr = entry_p->bits.pkt_buf_addr; 704 705 HXGE_DEBUG_MSG((hxgep, RX_CTL, 706 "\trcr entry $%p " 707 "\trcr entry 0x%0llx " 708 "\trcr entry 0x%08x " 709 "\trcr entry 0x%08x " 710 "\tvalue 0x%0llx\n" 711 "\tmulti = %d\n" 712 "\tpkt_type = 0x%x\n" 713 "\terror = 0x%04x\n" 714 "\tl2_len = %d\n" 715 "\tpktbufsize = %d\n" 716 "\tpkt_buf_addr = $%p\n" 717 "\tpkt_buf_addr (<< 6) = $%p\n", 718 entry_p, 719 *(int64_t *)entry_p, 720 *(int32_t *)entry_p, 721 *(int32_t *)((char *)entry_p + 32), 722 entry_p->value, 723 entry_p->bits.multi, 724 entry_p->bits.pkt_type, 725 entry_p->bits.error, 726 entry_p->bits.l2_len, 727 entry_p->bits.pktbufsz, 728 bptr, 729 entry_p->bits.pkt_buf_addr_l)); 730 731 pp = (entry_p->value & RCR_PKT_BUF_ADDR_MASK) << 732 RCR_PKT_BUF_ADDR_SHIFT; 733 734 HXGE_DEBUG_MSG((hxgep, RX_CTL, "rcr pp 0x%llx l2 len %d", 735 pp, (*(int64_t *)entry_p >> 40) & 0x3fff)); 736 #endif 737 } 738 739 /*ARGSUSED*/ 740 void 741 hxge_rxdma_stop(p_hxge_t hxgep) 742 { 743 HXGE_DEBUG_MSG((hxgep, RX_CTL, "==> hxge_rxdma_stop")); 744 745 MUTEX_ENTER(&hxgep->vmac_lock); 746 (void) hxge_rx_vmac_disable(hxgep); 747 (void) hxge_rxdma_hw_mode(hxgep, HXGE_DMA_STOP); 748 MUTEX_EXIT(&hxgep->vmac_lock); 749 750 HXGE_DEBUG_MSG((hxgep, RX_CTL, "<== hxge_rxdma_stop")); 751 } 752 753 void 754 hxge_rxdma_stop_reinit(p_hxge_t hxgep) 755 { 756 HXGE_DEBUG_MSG((hxgep, RX_CTL, "==> hxge_rxdma_stop_reinit")); 757 758 (void) hxge_rxdma_stop(hxgep); 759 (void) hxge_uninit_rxdma_channels(hxgep); 760 (void) hxge_init_rxdma_channels(hxgep); 761 762 MUTEX_ENTER(&hxgep->vmac_lock); 763 (void) hxge_rx_vmac_enable(hxgep); 764 MUTEX_EXIT(&hxgep->vmac_lock); 765 766 HXGE_DEBUG_MSG((hxgep, RX_CTL, "<== hxge_rxdma_stop_reinit")); 767 } 768 769 hxge_status_t 770 hxge_rxdma_hw_mode(p_hxge_t hxgep, boolean_t enable) 771 { 772 int i, ndmas; 773 uint16_t channel; 774 p_rx_rbr_rings_t rx_rbr_rings; 775 p_rx_rbr_ring_t *rbr_rings; 776 hpi_handle_t handle; 777 hpi_status_t rs = HPI_SUCCESS; 778 hxge_status_t status = HXGE_OK; 779 780 HXGE_DEBUG_MSG((hxgep, MEM2_CTL, 781 "==> hxge_rxdma_hw_mode: mode %d", enable)); 782 783 if (!(hxgep->drv_state & STATE_HW_INITIALIZED)) { 784 HXGE_DEBUG_MSG((hxgep, RX_CTL, 785 "<== hxge_rxdma_mode: not initialized")); 786 return (HXGE_ERROR); 787 } 788 789 rx_rbr_rings = hxgep->rx_rbr_rings; 790 if (rx_rbr_rings == NULL) { 791 HXGE_DEBUG_MSG((hxgep, RX_CTL, 792 "<== hxge_rxdma_mode: NULL ring pointer")); 793 return (HXGE_ERROR); 794 } 795 796 if (rx_rbr_rings->rbr_rings == NULL) { 797 HXGE_DEBUG_MSG((hxgep, RX_CTL, 798 "<== hxge_rxdma_mode: NULL rbr rings pointer")); 799 return (HXGE_ERROR); 800 } 801 802 ndmas = rx_rbr_rings->ndmas; 803 if (!ndmas) { 804 HXGE_DEBUG_MSG((hxgep, RX_CTL, 805 "<== hxge_rxdma_mode: no channel")); 806 return (HXGE_ERROR); 807 } 808 809 HXGE_DEBUG_MSG((hxgep, MEM2_CTL, 810 "==> hxge_rxdma_mode (ndmas %d)", ndmas)); 811 812 rbr_rings = rx_rbr_rings->rbr_rings; 813 814 handle = HXGE_DEV_HPI_HANDLE(hxgep); 815 816 for (i = 0; i < ndmas; i++) { 817 if (rbr_rings == NULL || rbr_rings[i] == NULL) { 818 continue; 819 } 820 channel = rbr_rings[i]->rdc; 821 if (enable) { 822 HXGE_DEBUG_MSG((hxgep, MEM2_CTL, 823 "==> hxge_rxdma_hw_mode: channel %d (enable)", 824 channel)); 825 rs = hpi_rxdma_cfg_rdc_enable(handle, channel); 826 } else { 827 HXGE_DEBUG_MSG((hxgep, MEM2_CTL, 828 "==> hxge_rxdma_hw_mode: channel %d (disable)", 829 channel)); 830 rs = hpi_rxdma_cfg_rdc_disable(handle, channel); 831 } 832 } 833 834 status = ((rs == HPI_SUCCESS) ? HXGE_OK : HXGE_ERROR | rs); 835 HXGE_DEBUG_MSG((hxgep, MEM2_CTL, 836 "<== hxge_rxdma_hw_mode: status 0x%x", status)); 837 838 return (status); 839 } 840 841 /* 842 * Static functions start here. 843 */ 844 static p_rx_msg_t 845 hxge_allocb(size_t size, uint32_t pri, p_hxge_dma_common_t dmabuf_p) 846 { 847 p_rx_msg_t hxge_mp = NULL; 848 p_hxge_dma_common_t dmamsg_p; 849 uchar_t *buffer; 850 851 hxge_mp = KMEM_ZALLOC(sizeof (rx_msg_t), KM_NOSLEEP); 852 if (hxge_mp == NULL) { 853 HXGE_ERROR_MSG((NULL, HXGE_ERR_CTL, 854 "Allocation of a rx msg failed.")); 855 goto hxge_allocb_exit; 856 } 857 858 hxge_mp->use_buf_pool = B_FALSE; 859 if (dmabuf_p) { 860 hxge_mp->use_buf_pool = B_TRUE; 861 862 dmamsg_p = (p_hxge_dma_common_t)&hxge_mp->buf_dma; 863 *dmamsg_p = *dmabuf_p; 864 dmamsg_p->nblocks = 1; 865 dmamsg_p->block_size = size; 866 dmamsg_p->alength = size; 867 buffer = (uchar_t *)dmabuf_p->kaddrp; 868 869 dmabuf_p->kaddrp = (void *)((char *)dmabuf_p->kaddrp + size); 870 dmabuf_p->ioaddr_pp = (void *) 871 ((char *)dmabuf_p->ioaddr_pp + size); 872 873 dmabuf_p->alength -= size; 874 dmabuf_p->offset += size; 875 dmabuf_p->dma_cookie.dmac_laddress += size; 876 dmabuf_p->dma_cookie.dmac_size -= size; 877 } else { 878 buffer = KMEM_ALLOC(size, KM_NOSLEEP); 879 if (buffer == NULL) { 880 HXGE_ERROR_MSG((NULL, HXGE_ERR_CTL, 881 "Allocation of a receive page failed.")); 882 goto hxge_allocb_fail1; 883 } 884 } 885 886 hxge_mp->rx_mblk_p = desballoc(buffer, size, pri, &hxge_mp->freeb); 887 if (hxge_mp->rx_mblk_p == NULL) { 888 HXGE_ERROR_MSG((NULL, HXGE_ERR_CTL, "desballoc failed.")); 889 goto hxge_allocb_fail2; 890 } 891 hxge_mp->buffer = buffer; 892 hxge_mp->block_size = size; 893 hxge_mp->freeb.free_func = (void (*) ()) hxge_freeb; 894 hxge_mp->freeb.free_arg = (caddr_t)hxge_mp; 895 hxge_mp->ref_cnt = 1; 896 hxge_mp->free = B_TRUE; 897 hxge_mp->rx_use_bcopy = B_FALSE; 898 899 atomic_inc_32(&hxge_mblks_pending); 900 901 goto hxge_allocb_exit; 902 903 hxge_allocb_fail2: 904 if (!hxge_mp->use_buf_pool) { 905 KMEM_FREE(buffer, size); 906 } 907 hxge_allocb_fail1: 908 KMEM_FREE(hxge_mp, sizeof (rx_msg_t)); 909 hxge_mp = NULL; 910 911 hxge_allocb_exit: 912 return (hxge_mp); 913 } 914 915 p_mblk_t 916 hxge_dupb(p_rx_msg_t hxge_mp, uint_t offset, size_t size) 917 { 918 p_mblk_t mp; 919 920 HXGE_DEBUG_MSG((NULL, MEM_CTL, "==> hxge_dupb")); 921 HXGE_DEBUG_MSG((NULL, MEM_CTL, "hxge_mp = $%p " 922 "offset = 0x%08X " "size = 0x%08X", hxge_mp, offset, size)); 923 924 mp = desballoc(&hxge_mp->buffer[offset], size, 0, &hxge_mp->freeb); 925 if (mp == NULL) { 926 HXGE_DEBUG_MSG((NULL, RX_CTL, "desballoc failed")); 927 goto hxge_dupb_exit; 928 } 929 930 atomic_inc_32(&hxge_mp->ref_cnt); 931 932 hxge_dupb_exit: 933 HXGE_DEBUG_MSG((NULL, MEM_CTL, "<== hxge_dupb mp = $%p", hxge_mp)); 934 return (mp); 935 } 936 937 p_mblk_t 938 hxge_dupb_bcopy(p_rx_msg_t hxge_mp, uint_t offset, size_t size) 939 { 940 p_mblk_t mp; 941 uchar_t *dp; 942 943 mp = allocb(size + HXGE_RXBUF_EXTRA, 0); 944 if (mp == NULL) { 945 HXGE_DEBUG_MSG((NULL, RX_CTL, "desballoc failed")); 946 goto hxge_dupb_bcopy_exit; 947 } 948 dp = mp->b_rptr = mp->b_rptr + HXGE_RXBUF_EXTRA; 949 bcopy((void *) &hxge_mp->buffer[offset], dp, size); 950 mp->b_wptr = dp + size; 951 952 hxge_dupb_bcopy_exit: 953 954 HXGE_DEBUG_MSG((NULL, MEM_CTL, "<== hxge_dupb mp = $%p", hxge_mp)); 955 956 return (mp); 957 } 958 959 void hxge_post_page(p_hxge_t hxgep, p_rx_rbr_ring_t rx_rbr_p, 960 p_rx_msg_t rx_msg_p); 961 962 void 963 hxge_post_page(p_hxge_t hxgep, p_rx_rbr_ring_t rx_rbr_p, p_rx_msg_t rx_msg_p) 964 { 965 HXGE_DEBUG_MSG((hxgep, RX_CTL, "==> hxge_post_page")); 966 967 /* Reuse this buffer */ 968 rx_msg_p->free = B_FALSE; 969 rx_msg_p->cur_usage_cnt = 0; 970 rx_msg_p->max_usage_cnt = 0; 971 rx_msg_p->pkt_buf_size = 0; 972 973 if (rx_rbr_p->rbr_use_bcopy) { 974 rx_msg_p->rx_use_bcopy = B_FALSE; 975 atomic_dec_32(&rx_rbr_p->rbr_consumed); 976 } 977 atomic_dec_32(&rx_rbr_p->rbr_used); 978 979 /* 980 * Get the rbr header pointer and its offset index. 981 */ 982 rx_rbr_p->rbr_wr_index = ((rx_rbr_p->rbr_wr_index + 1) & 983 rx_rbr_p->rbr_wrap_mask); 984 rx_rbr_p->rbr_desc_vp[rx_rbr_p->rbr_wr_index] = rx_msg_p->shifted_addr; 985 986 /* 987 * Accumulate some buffers in the ring before re-enabling the 988 * DMA channel, if rbr empty was signaled. 989 */ 990 hpi_rxdma_rdc_rbr_kick(HXGE_DEV_HPI_HANDLE(hxgep), rx_rbr_p->rdc, 1); 991 if (rx_rbr_p->rbr_is_empty && (rx_rbr_p->rbb_max - 992 rx_rbr_p->rbr_used) >= HXGE_RBR_EMPTY_THRESHOLD) { 993 hxge_rbr_empty_restore(hxgep, rx_rbr_p); 994 } 995 996 HXGE_DEBUG_MSG((hxgep, RX_CTL, 997 "<== hxge_post_page (channel %d post_next_index %d)", 998 rx_rbr_p->rdc, rx_rbr_p->rbr_wr_index)); 999 HXGE_DEBUG_MSG((hxgep, RX_CTL, "<== hxge_post_page")); 1000 } 1001 1002 void 1003 hxge_freeb(p_rx_msg_t rx_msg_p) 1004 { 1005 size_t size; 1006 uchar_t *buffer = NULL; 1007 int ref_cnt; 1008 boolean_t free_state = B_FALSE; 1009 rx_rbr_ring_t *ring = rx_msg_p->rx_rbr_p; 1010 1011 HXGE_DEBUG_MSG((NULL, MEM2_CTL, "==> hxge_freeb")); 1012 HXGE_DEBUG_MSG((NULL, MEM2_CTL, 1013 "hxge_freeb:rx_msg_p = $%p (block pending %d)", 1014 rx_msg_p, hxge_mblks_pending)); 1015 1016 if (ring == NULL) 1017 return; 1018 1019 /* 1020 * This is to prevent posting activities while we are recovering 1021 * from fatal errors. This should not be a performance drag since 1022 * ref_cnt != 0 most times. 1023 */ 1024 if (ring->rbr_state == RBR_POSTING) 1025 MUTEX_ENTER(&ring->post_lock); 1026 1027 /* 1028 * First we need to get the free state, then 1029 * atomic decrement the reference count to prevent 1030 * the race condition with the interrupt thread that 1031 * is processing a loaned up buffer block. 1032 */ 1033 free_state = rx_msg_p->free; 1034 ref_cnt = atomic_add_32_nv(&rx_msg_p->ref_cnt, -1); 1035 if (!ref_cnt) { 1036 atomic_dec_32(&hxge_mblks_pending); 1037 1038 buffer = rx_msg_p->buffer; 1039 size = rx_msg_p->block_size; 1040 1041 HXGE_DEBUG_MSG((NULL, MEM2_CTL, "hxge_freeb: " 1042 "will free: rx_msg_p = $%p (block pending %d)", 1043 rx_msg_p, hxge_mblks_pending)); 1044 1045 if (!rx_msg_p->use_buf_pool) { 1046 KMEM_FREE(buffer, size); 1047 } 1048 1049 KMEM_FREE(rx_msg_p, sizeof (rx_msg_t)); 1050 /* 1051 * Decrement the receive buffer ring's reference 1052 * count, too. 1053 */ 1054 atomic_dec_32(&ring->rbr_ref_cnt); 1055 1056 /* 1057 * Free the receive buffer ring, iff 1058 * 1. all the receive buffers have been freed 1059 * 2. and we are in the proper state (that is, 1060 * we are not UNMAPPING). 1061 */ 1062 if (ring->rbr_ref_cnt == 0 && 1063 ring->rbr_state == RBR_UNMAPPED) { 1064 KMEM_FREE(ring, sizeof (*ring)); 1065 /* post_lock has been destroyed already */ 1066 return; 1067 } 1068 } 1069 1070 /* 1071 * Repost buffer. 1072 */ 1073 if (free_state && (ref_cnt == 1)) { 1074 HXGE_DEBUG_MSG((NULL, RX_CTL, 1075 "hxge_freeb: post page $%p:", rx_msg_p)); 1076 if (ring->rbr_state == RBR_POSTING) 1077 hxge_post_page(rx_msg_p->hxgep, ring, rx_msg_p); 1078 } 1079 1080 if (ring->rbr_state == RBR_POSTING) 1081 MUTEX_EXIT(&ring->post_lock); 1082 1083 HXGE_DEBUG_MSG((NULL, MEM2_CTL, "<== hxge_freeb")); 1084 } 1085 1086 uint_t 1087 hxge_rx_intr(caddr_t arg1, caddr_t arg2) 1088 { 1089 p_hxge_ring_handle_t rhp; 1090 p_hxge_ldv_t ldvp = (p_hxge_ldv_t)arg1; 1091 p_hxge_t hxgep = (p_hxge_t)arg2; 1092 p_hxge_ldg_t ldgp; 1093 uint8_t channel; 1094 hpi_handle_t handle; 1095 rdc_stat_t cs; 1096 p_rx_rcr_ring_t ring; 1097 p_rx_rbr_ring_t rbrp; 1098 mblk_t *mp = NULL; 1099 1100 if (ldvp == NULL) { 1101 HXGE_DEBUG_MSG((NULL, RX_INT_CTL, 1102 "<== hxge_rx_intr: arg2 $%p arg1 $%p", hxgep, ldvp)); 1103 return (DDI_INTR_UNCLAIMED); 1104 } 1105 1106 if (arg2 == NULL || (void *) ldvp->hxgep != arg2) { 1107 hxgep = ldvp->hxgep; 1108 } 1109 1110 HXGE_DEBUG_MSG((hxgep, RX_INT_CTL, 1111 "==> hxge_rx_intr: arg2 $%p arg1 $%p", hxgep, ldvp)); 1112 1113 /* 1114 * This interrupt handler is for a specific receive dma channel. 1115 */ 1116 handle = HXGE_DEV_HPI_HANDLE(hxgep); 1117 1118 /* 1119 * Get the control and status for this channel. 1120 */ 1121 channel = ldvp->vdma_index; 1122 ring = hxgep->rx_rcr_rings->rcr_rings[channel]; 1123 rhp = &hxgep->rx_ring_handles[channel]; 1124 ldgp = ldvp->ldgp; 1125 1126 ASSERT(ring != NULL); 1127 #if defined(DEBUG) 1128 if (rhp->started) { 1129 ASSERT(ring->ldgp == ldgp); 1130 ASSERT(ring->ldvp == ldvp); 1131 } 1132 #endif 1133 1134 MUTEX_ENTER(&ring->lock); 1135 1136 if (!ring->poll_flag) { 1137 RXDMA_REG_READ64(handle, RDC_STAT, channel, &cs.value); 1138 cs.bits.ptrread = 0; 1139 cs.bits.pktread = 0; 1140 RXDMA_REG_WRITE64(handle, RDC_STAT, channel, cs.value); 1141 1142 /* 1143 * Process packets, if we are not in polling mode, the ring is 1144 * started and the interface is started. The MAC layer under 1145 * load will be operating in polling mode for RX traffic. 1146 */ 1147 if ((rhp->started) && 1148 (hxgep->hxge_mac_state == HXGE_MAC_STARTED)) { 1149 mp = hxge_rx_pkts(hxgep, ldvp->vdma_index, 1150 ldvp, ring, cs, -1); 1151 } 1152 1153 /* Process error events. */ 1154 if (cs.value & RDC_STAT_ERROR) { 1155 MUTEX_EXIT(&ring->lock); 1156 (void) hxge_rx_err_evnts(hxgep, channel, ldvp, cs); 1157 MUTEX_ENTER(&ring->lock); 1158 } 1159 1160 /* 1161 * Enable the mailbox update interrupt if we want to use 1162 * mailbox. We probably don't need to use mailbox as it only 1163 * saves us one pio read. Also write 1 to rcrthres and 1164 * rcrto to clear these two edge triggered bits. 1165 */ 1166 rbrp = hxgep->rx_rbr_rings->rbr_rings[channel]; 1167 MUTEX_ENTER(&rbrp->post_lock); 1168 if (!rbrp->rbr_is_empty) { 1169 cs.value = 0; 1170 cs.bits.mex = 1; 1171 cs.bits.ptrread = 0; 1172 cs.bits.pktread = 0; 1173 RXDMA_REG_WRITE64(handle, RDC_STAT, channel, cs.value); 1174 } 1175 MUTEX_EXIT(&rbrp->post_lock); 1176 1177 if (ldgp->nldvs == 1) { 1178 /* 1179 * Re-arm the group. 1180 */ 1181 (void) hpi_intr_ldg_mgmt_set(handle, ldgp->ldg, B_TRUE, 1182 ldgp->ldg_timer); 1183 } 1184 } else if ((ldgp->nldvs == 1) && (ring->poll_flag)) { 1185 /* 1186 * Disarm the group, if we are not a shared interrupt. 1187 */ 1188 (void) hpi_intr_ldg_mgmt_set(handle, ldgp->ldg, B_FALSE, 0); 1189 } else if (ring->poll_flag) { 1190 /* 1191 * Mask-off this device from the group. 1192 */ 1193 (void) hpi_intr_mask_set(handle, ldvp->ldv, 1); 1194 } 1195 1196 MUTEX_EXIT(&ring->lock); 1197 1198 /* 1199 * Send the packets up the stack. 1200 */ 1201 if (mp != NULL) { 1202 mac_rx_ring(hxgep->mach, ring->rcr_mac_handle, mp, 1203 ring->rcr_gen_num); 1204 } 1205 1206 HXGE_DEBUG_MSG((NULL, RX_INT_CTL, "<== hxge_rx_intr")); 1207 return (DDI_INTR_CLAIMED); 1208 } 1209 1210 /* 1211 * Enable polling for a ring. Interrupt for the ring is disabled when 1212 * the hxge interrupt comes (see hxge_rx_intr). 1213 */ 1214 int 1215 hxge_enable_poll(void *arg) 1216 { 1217 p_hxge_ring_handle_t ring_handle = (p_hxge_ring_handle_t)arg; 1218 p_rx_rcr_ring_t ringp; 1219 p_hxge_t hxgep; 1220 p_hxge_ldg_t ldgp; 1221 1222 if (ring_handle == NULL) { 1223 ASSERT(ring_handle != NULL); 1224 return (1); 1225 } 1226 1227 1228 hxgep = ring_handle->hxgep; 1229 ringp = hxgep->rx_rcr_rings->rcr_rings[ring_handle->index]; 1230 1231 MUTEX_ENTER(&ringp->lock); 1232 1233 /* 1234 * Are we already polling ? 1235 */ 1236 if (ringp->poll_flag) { 1237 MUTEX_EXIT(&ringp->lock); 1238 return (1); 1239 } 1240 1241 ldgp = ringp->ldgp; 1242 if (ldgp == NULL) { 1243 MUTEX_EXIT(&ringp->lock); 1244 return (1); 1245 } 1246 1247 /* 1248 * Enable polling 1249 */ 1250 ringp->poll_flag = B_TRUE; 1251 1252 MUTEX_EXIT(&ringp->lock); 1253 return (0); 1254 } 1255 1256 /* 1257 * Disable polling for a ring and enable its interrupt. 1258 */ 1259 int 1260 hxge_disable_poll(void *arg) 1261 { 1262 p_hxge_ring_handle_t ring_handle = (p_hxge_ring_handle_t)arg; 1263 p_rx_rcr_ring_t ringp; 1264 p_hxge_t hxgep; 1265 1266 if (ring_handle == NULL) { 1267 ASSERT(ring_handle != NULL); 1268 return (0); 1269 } 1270 1271 hxgep = ring_handle->hxgep; 1272 ringp = hxgep->rx_rcr_rings->rcr_rings[ring_handle->index]; 1273 1274 MUTEX_ENTER(&ringp->lock); 1275 1276 /* 1277 * Disable polling: enable interrupt 1278 */ 1279 if (ringp->poll_flag) { 1280 hpi_handle_t handle; 1281 rdc_stat_t cs; 1282 p_hxge_ldg_t ldgp; 1283 1284 /* 1285 * Get the control and status for this channel. 1286 */ 1287 handle = HXGE_DEV_HPI_HANDLE(hxgep); 1288 1289 /* 1290 * Rearm this logical group if this is a single device 1291 * group. 1292 */ 1293 ldgp = ringp->ldgp; 1294 if (ldgp == NULL) { 1295 MUTEX_EXIT(&ringp->lock); 1296 return (1); 1297 } 1298 1299 ringp->poll_flag = B_FALSE; 1300 1301 /* 1302 * Enable mailbox update, to start interrupts again. 1303 */ 1304 cs.value = 0ULL; 1305 cs.bits.mex = 1; 1306 cs.bits.pktread = 0; 1307 cs.bits.ptrread = 0; 1308 RXDMA_REG_WRITE64(handle, RDC_STAT, ringp->rdc, cs.value); 1309 1310 if (ldgp->nldvs == 1) { 1311 /* 1312 * Re-arm the group, since it is the only member 1313 * of the group. 1314 */ 1315 (void) hpi_intr_ldg_mgmt_set(handle, ldgp->ldg, B_TRUE, 1316 ldgp->ldg_timer); 1317 } else { 1318 /* 1319 * Mask-on interrupts for the device and re-arm 1320 * the group. 1321 */ 1322 (void) hpi_intr_mask_set(handle, ringp->ldvp->ldv, 0); 1323 (void) hpi_intr_ldg_mgmt_set(handle, ldgp->ldg, B_TRUE, 1324 ldgp->ldg_timer); 1325 } 1326 } 1327 MUTEX_EXIT(&ringp->lock); 1328 return (0); 1329 } 1330 1331 /* 1332 * Poll 'bytes_to_pickup' bytes of message from the rx ring. 1333 */ 1334 mblk_t * 1335 hxge_rx_poll(void *arg, int bytes_to_pickup) 1336 { 1337 p_hxge_ring_handle_t rhp = (p_hxge_ring_handle_t)arg; 1338 p_rx_rcr_ring_t ring; 1339 p_hxge_t hxgep; 1340 hpi_handle_t handle; 1341 rdc_stat_t cs; 1342 mblk_t *mblk; 1343 p_hxge_ldv_t ldvp; 1344 1345 hxgep = rhp->hxgep; 1346 1347 /* 1348 * Get the control and status for this channel. 1349 */ 1350 handle = HXGE_DEV_HPI_HANDLE(hxgep); 1351 ring = hxgep->rx_rcr_rings->rcr_rings[rhp->index]; 1352 1353 MUTEX_ENTER(&ring->lock); 1354 ASSERT(ring->poll_flag == B_TRUE); 1355 ASSERT(rhp->started); 1356 1357 if (!ring->poll_flag) { 1358 MUTEX_EXIT(&ring->lock); 1359 return ((mblk_t *)NULL); 1360 } 1361 1362 /* 1363 * Get the control and status bits for the ring. 1364 */ 1365 RXDMA_REG_READ64(handle, RDC_STAT, rhp->index, &cs.value); 1366 cs.bits.ptrread = 0; 1367 cs.bits.pktread = 0; 1368 RXDMA_REG_WRITE64(handle, RDC_STAT, rhp->index, cs.value); 1369 1370 /* 1371 * Process packets. 1372 */ 1373 mblk = hxge_rx_pkts(hxgep, ring->ldvp->vdma_index, 1374 ring->ldvp, ring, cs, bytes_to_pickup); 1375 ldvp = ring->ldvp; 1376 1377 /* 1378 * Process Error Events. 1379 */ 1380 if (ldvp && (cs.value & RDC_STAT_ERROR)) { 1381 /* 1382 * Recovery routines will grab the RCR ring lock. 1383 */ 1384 MUTEX_EXIT(&ring->lock); 1385 (void) hxge_rx_err_evnts(hxgep, ldvp->vdma_index, ldvp, cs); 1386 MUTEX_ENTER(&ring->lock); 1387 } 1388 1389 MUTEX_EXIT(&ring->lock); 1390 return (mblk); 1391 } 1392 1393 /*ARGSUSED*/ 1394 mblk_t * 1395 hxge_rx_pkts(p_hxge_t hxgep, uint_t vindex, p_hxge_ldv_t ldvp, 1396 p_rx_rcr_ring_t rcrp, rdc_stat_t cs, int bytes_to_read) 1397 { 1398 hpi_handle_t handle; 1399 uint8_t channel; 1400 uint32_t comp_rd_index; 1401 p_rcr_entry_t rcr_desc_rd_head_p; 1402 p_rcr_entry_t rcr_desc_rd_head_pp; 1403 p_mblk_t nmp, mp_cont, head_mp, *tail_mp; 1404 uint16_t qlen, nrcr_read, npkt_read; 1405 uint32_t qlen_hw, npkts, num_rcrs; 1406 uint32_t invalid_rcr_entry; 1407 boolean_t multi; 1408 rdc_stat_t pktcs; 1409 rdc_rcr_cfg_b_t rcr_cfg_b; 1410 uint64_t rcr_head_index, rcr_tail_index; 1411 uint64_t rcr_tail; 1412 rdc_rcr_tail_t rcr_tail_reg; 1413 p_hxge_rx_ring_stats_t rdc_stats; 1414 int totallen = 0; 1415 1416 HXGE_DEBUG_MSG((hxgep, RX_INT_CTL, "==> hxge_rx_pkts:vindex %d " 1417 "channel %d", vindex, ldvp->channel)); 1418 1419 handle = HXGE_DEV_HPI_HANDLE(hxgep); 1420 channel = rcrp->rdc; 1421 if (channel != ldvp->channel) { 1422 HXGE_DEBUG_MSG((hxgep, RX_INT_CTL, "==> hxge_rx_pkts:index %d " 1423 "channel %d, and rcr channel %d not matched.", 1424 vindex, ldvp->channel, channel)); 1425 return (NULL); 1426 } 1427 1428 HXGE_DEBUG_MSG((hxgep, RX_INT_CTL, 1429 "==> hxge_rx_pkts: START: rcr channel %d " 1430 "head_p $%p head_pp $%p index %d ", 1431 channel, rcrp->rcr_desc_rd_head_p, 1432 rcrp->rcr_desc_rd_head_pp, rcrp->comp_rd_index)); 1433 1434 (void) hpi_rxdma_rdc_rcr_qlen_get(handle, channel, &qlen); 1435 RXDMA_REG_READ64(handle, RDC_RCR_TAIL, channel, &rcr_tail_reg.value); 1436 rcr_tail = rcr_tail_reg.bits.tail; 1437 1438 if (!qlen) { 1439 HXGE_DEBUG_MSG((hxgep, RX_INT_CTL, 1440 "<== hxge_rx_pkts:rcr channel %d qlen %d (no pkts)", 1441 channel, qlen)); 1442 return (NULL); 1443 } 1444 1445 HXGE_DEBUG_MSG((hxgep, RX_CTL, "==> hxge_rx_pkts:rcr channel %d " 1446 "qlen %d", channel, qlen)); 1447 1448 comp_rd_index = rcrp->comp_rd_index; 1449 1450 rcr_desc_rd_head_p = rcrp->rcr_desc_rd_head_p; 1451 rcr_desc_rd_head_pp = rcrp->rcr_desc_rd_head_pp; 1452 nrcr_read = npkt_read = 0; 1453 1454 if (hxgep->rdc_first_intr[channel]) 1455 qlen_hw = qlen; 1456 else 1457 qlen_hw = qlen - 1; 1458 1459 head_mp = NULL; 1460 tail_mp = &head_mp; 1461 nmp = mp_cont = NULL; 1462 multi = B_FALSE; 1463 1464 rcr_head_index = rcrp->rcr_desc_rd_head_p - rcrp->rcr_desc_first_p; 1465 rcr_tail_index = rcr_tail - rcrp->rcr_tail_begin; 1466 1467 if (rcr_tail_index >= rcr_head_index) { 1468 num_rcrs = rcr_tail_index - rcr_head_index; 1469 } else { 1470 /* rcr_tail has wrapped around */ 1471 num_rcrs = (rcrp->comp_size - rcr_head_index) + rcr_tail_index; 1472 } 1473 1474 npkts = hxge_scan_for_last_eop(rcrp, rcr_desc_rd_head_p, num_rcrs); 1475 if (!npkts) 1476 return (NULL); 1477 1478 if (qlen_hw > npkts) { 1479 HXGE_DEBUG_MSG((hxgep, RX_INT_CTL, 1480 "Channel %d, rcr_qlen from reg %d and from rcr_tail %d\n", 1481 channel, qlen_hw, qlen_sw)); 1482 qlen_hw = npkts; 1483 } 1484 1485 while (qlen_hw) { 1486 #ifdef HXGE_DEBUG 1487 hxge_dump_rcr_entry(hxgep, rcr_desc_rd_head_p); 1488 #endif 1489 /* 1490 * Process one completion ring entry. 1491 */ 1492 invalid_rcr_entry = 0; 1493 hxge_receive_packet(hxgep, 1494 rcrp, rcr_desc_rd_head_p, &multi, &nmp, &mp_cont, 1495 &invalid_rcr_entry); 1496 if (invalid_rcr_entry != 0) { 1497 rdc_stats = rcrp->rdc_stats; 1498 rdc_stats->rcr_invalids++; 1499 HXGE_DEBUG_MSG((hxgep, RX_INT_CTL, 1500 "Channel %d could only read 0x%x packets, " 1501 "but 0x%x pending\n", channel, npkt_read, qlen_hw)); 1502 break; 1503 } 1504 1505 /* 1506 * message chaining modes (nemo msg chaining) 1507 */ 1508 if (nmp) { 1509 nmp->b_next = NULL; 1510 if (!multi && !mp_cont) { /* frame fits a partition */ 1511 *tail_mp = nmp; 1512 tail_mp = &nmp->b_next; 1513 nmp = NULL; 1514 } else if (multi && !mp_cont) { /* first segment */ 1515 *tail_mp = nmp; 1516 tail_mp = &nmp->b_cont; 1517 } else if (multi && mp_cont) { /* mid of multi segs */ 1518 *tail_mp = mp_cont; 1519 tail_mp = &mp_cont->b_cont; 1520 } else if (!multi && mp_cont) { /* last segment */ 1521 *tail_mp = mp_cont; 1522 tail_mp = &nmp->b_next; 1523 totallen += MBLKL(mp_cont); 1524 nmp = NULL; 1525 } 1526 } 1527 1528 HXGE_DEBUG_MSG((hxgep, RX_INT_CTL, 1529 "==> hxge_rx_pkts: loop: rcr channel %d " 1530 "before updating: multi %d " 1531 "nrcr_read %d " 1532 "npk read %d " 1533 "head_pp $%p index %d ", 1534 channel, multi, 1535 nrcr_read, npkt_read, rcr_desc_rd_head_pp, comp_rd_index)); 1536 1537 if (!multi) { 1538 qlen_hw--; 1539 npkt_read++; 1540 } 1541 1542 /* 1543 * Update the next read entry. 1544 */ 1545 comp_rd_index = NEXT_ENTRY(comp_rd_index, 1546 rcrp->comp_wrap_mask); 1547 1548 rcr_desc_rd_head_p = NEXT_ENTRY_PTR(rcr_desc_rd_head_p, 1549 rcrp->rcr_desc_first_p, rcrp->rcr_desc_last_p); 1550 1551 nrcr_read++; 1552 1553 HXGE_DEBUG_MSG((hxgep, RX_INT_CTL, 1554 "<== hxge_rx_pkts: (SAM, process one packet) " 1555 "nrcr_read %d", nrcr_read)); 1556 HXGE_DEBUG_MSG((hxgep, RX_INT_CTL, 1557 "==> hxge_rx_pkts: loop: rcr channel %d " 1558 "multi %d nrcr_read %d npk read %d head_pp $%p index %d ", 1559 channel, multi, nrcr_read, npkt_read, rcr_desc_rd_head_pp, 1560 comp_rd_index)); 1561 1562 if ((bytes_to_read != -1) && 1563 (totallen >= bytes_to_read)) { 1564 break; 1565 } 1566 } 1567 1568 rcrp->rcr_desc_rd_head_pp = rcr_desc_rd_head_pp; 1569 rcrp->comp_rd_index = comp_rd_index; 1570 rcrp->rcr_desc_rd_head_p = rcr_desc_rd_head_p; 1571 1572 if ((hxgep->intr_timeout != rcrp->intr_timeout) || 1573 (hxgep->intr_threshold != rcrp->intr_threshold)) { 1574 rcrp->intr_timeout = hxgep->intr_timeout; 1575 rcrp->intr_threshold = hxgep->intr_threshold; 1576 rcr_cfg_b.value = 0x0ULL; 1577 if (rcrp->intr_timeout) 1578 rcr_cfg_b.bits.entout = 1; 1579 rcr_cfg_b.bits.timeout = rcrp->intr_timeout; 1580 rcr_cfg_b.bits.pthres = rcrp->intr_threshold; 1581 RXDMA_REG_WRITE64(handle, RDC_RCR_CFG_B, 1582 channel, rcr_cfg_b.value); 1583 } 1584 1585 pktcs.value = 0; 1586 if (hxgep->rdc_first_intr[channel] && (npkt_read > 0)) { 1587 hxgep->rdc_first_intr[channel] = B_FALSE; 1588 pktcs.bits.pktread = npkt_read - 1; 1589 } else 1590 pktcs.bits.pktread = npkt_read; 1591 pktcs.bits.ptrread = nrcr_read; 1592 RXDMA_REG_WRITE64(handle, RDC_STAT, channel, pktcs.value); 1593 1594 HXGE_DEBUG_MSG((hxgep, RX_INT_CTL, 1595 "==> hxge_rx_pkts: EXIT: rcr channel %d " 1596 "head_pp $%p index %016llx ", 1597 channel, rcrp->rcr_desc_rd_head_pp, rcrp->comp_rd_index)); 1598 1599 HXGE_DEBUG_MSG((hxgep, RX_INT_CTL, "<== hxge_rx_pkts")); 1600 return (head_mp); 1601 } 1602 1603 #define RCR_ENTRY_PATTERN 0x5a5a6b6b7c7c8d8dULL 1604 #define NO_PORT_BIT 0x20 1605 #define L4_CS_EQ_BIT 0x40 1606 1607 static uint32_t hxge_scan_for_last_eop(p_rx_rcr_ring_t rcrp, 1608 p_rcr_entry_t rcr_desc_rd_head_p, uint32_t num_rcrs) 1609 { 1610 uint64_t rcr_entry; 1611 uint32_t rcrs = 0; 1612 uint32_t pkts = 0; 1613 1614 while (rcrs < num_rcrs) { 1615 rcr_entry = *((uint64_t *)rcr_desc_rd_head_p); 1616 1617 if ((rcr_entry == 0x0) || (rcr_entry == RCR_ENTRY_PATTERN)) 1618 break; 1619 1620 if (!(rcr_entry & RCR_MULTI_MASK)) 1621 pkts++; 1622 1623 rcr_desc_rd_head_p = NEXT_ENTRY_PTR(rcr_desc_rd_head_p, 1624 rcrp->rcr_desc_first_p, rcrp->rcr_desc_last_p); 1625 1626 rcrs++; 1627 } 1628 1629 return (pkts); 1630 } 1631 1632 /*ARGSUSED*/ 1633 void 1634 hxge_receive_packet(p_hxge_t hxgep, p_rx_rcr_ring_t rcr_p, 1635 p_rcr_entry_t rcr_desc_rd_head_p, boolean_t *multi_p, mblk_t **mp, 1636 mblk_t **mp_cont, uint32_t *invalid_rcr_entry) 1637 { 1638 p_mblk_t nmp = NULL; 1639 uint64_t multi; 1640 uint8_t channel; 1641 boolean_t first_entry = B_TRUE; 1642 boolean_t is_tcp_udp = B_FALSE; 1643 boolean_t buffer_free = B_FALSE; 1644 boolean_t error_send_up = B_FALSE; 1645 uint8_t error_type; 1646 uint16_t l2_len; 1647 uint16_t skip_len; 1648 uint8_t pktbufsz_type; 1649 uint64_t rcr_entry; 1650 uint64_t *pkt_buf_addr_pp; 1651 uint64_t *pkt_buf_addr_p; 1652 uint32_t buf_offset; 1653 uint32_t bsize; 1654 uint32_t msg_index; 1655 p_rx_rbr_ring_t rx_rbr_p; 1656 p_rx_msg_t *rx_msg_ring_p; 1657 p_rx_msg_t rx_msg_p; 1658 uint16_t sw_offset_bytes = 0, hdr_size = 0; 1659 hxge_status_t status = HXGE_OK; 1660 boolean_t is_valid = B_FALSE; 1661 p_hxge_rx_ring_stats_t rdc_stats; 1662 uint32_t bytes_read; 1663 uint8_t header0 = 0; 1664 uint8_t header1 = 0; 1665 uint64_t pkt_type; 1666 uint8_t no_port_bit = 0; 1667 uint8_t l4_cs_eq_bit = 0; 1668 1669 channel = rcr_p->rdc; 1670 1671 HXGE_DEBUG_MSG((hxgep, RX2_CTL, "==> hxge_receive_packet")); 1672 1673 first_entry = (*mp == NULL) ? B_TRUE : B_FALSE; 1674 rcr_entry = *((uint64_t *)rcr_desc_rd_head_p); 1675 1676 /* Verify the content of the rcr_entry for a hardware bug workaround */ 1677 if ((rcr_entry == 0x0) || (rcr_entry == RCR_ENTRY_PATTERN)) { 1678 *invalid_rcr_entry = 1; 1679 HXGE_DEBUG_MSG((hxgep, RX2_CTL, "hxge_receive_packet " 1680 "Channel %d invalid RCR entry 0x%llx found, returning\n", 1681 channel, (long long) rcr_entry)); 1682 return; 1683 } 1684 *((uint64_t *)rcr_desc_rd_head_p) = RCR_ENTRY_PATTERN; 1685 1686 multi = (rcr_entry & RCR_MULTI_MASK); 1687 pkt_type = (rcr_entry & RCR_PKT_TYPE_MASK); 1688 1689 error_type = ((rcr_entry & RCR_ERROR_MASK) >> RCR_ERROR_SHIFT); 1690 l2_len = ((rcr_entry & RCR_L2_LEN_MASK) >> RCR_L2_LEN_SHIFT); 1691 1692 /* 1693 * Hardware does not strip the CRC due bug ID 11451 where 1694 * the hardware mis handles minimum size packets. 1695 */ 1696 l2_len -= ETHERFCSL; 1697 1698 pktbufsz_type = ((rcr_entry & RCR_PKTBUFSZ_MASK) >> 1699 RCR_PKTBUFSZ_SHIFT); 1700 #if defined(__i386) 1701 pkt_buf_addr_pp = (uint64_t *)(uint32_t)((rcr_entry & 1702 RCR_PKT_BUF_ADDR_MASK) << RCR_PKT_BUF_ADDR_SHIFT); 1703 #else 1704 pkt_buf_addr_pp = (uint64_t *)((rcr_entry & RCR_PKT_BUF_ADDR_MASK) << 1705 RCR_PKT_BUF_ADDR_SHIFT); 1706 #endif 1707 1708 HXGE_DEBUG_MSG((hxgep, RX2_CTL, 1709 "==> hxge_receive_packet: entryp $%p entry 0x%0llx " 1710 "pkt_buf_addr_pp $%p l2_len %d multi %d " 1711 "error_type 0x%x pktbufsz_type %d ", 1712 rcr_desc_rd_head_p, rcr_entry, pkt_buf_addr_pp, l2_len, 1713 multi, error_type, pktbufsz_type)); 1714 1715 HXGE_DEBUG_MSG((hxgep, RX2_CTL, 1716 "==> hxge_receive_packet: entryp $%p entry 0x%0llx " 1717 "pkt_buf_addr_pp $%p l2_len %d multi %d " 1718 "error_type 0x%x ", rcr_desc_rd_head_p, 1719 rcr_entry, pkt_buf_addr_pp, l2_len, multi, error_type)); 1720 1721 HXGE_DEBUG_MSG((hxgep, RX2_CTL, 1722 "==> (rbr) hxge_receive_packet: entry 0x%0llx " 1723 "full pkt_buf_addr_pp $%p l2_len %d", 1724 rcr_entry, pkt_buf_addr_pp, l2_len)); 1725 1726 /* get the stats ptr */ 1727 rdc_stats = rcr_p->rdc_stats; 1728 1729 if (!l2_len) { 1730 HXGE_DEBUG_MSG((hxgep, RX_CTL, 1731 "<== hxge_receive_packet: failed: l2 length is 0.")); 1732 return; 1733 } 1734 1735 /* shift 6 bits to get the full io address */ 1736 #if defined(__i386) 1737 pkt_buf_addr_pp = (uint64_t *)((uint32_t)pkt_buf_addr_pp << 1738 RCR_PKT_BUF_ADDR_SHIFT_FULL); 1739 #else 1740 pkt_buf_addr_pp = (uint64_t *)((uint64_t)pkt_buf_addr_pp << 1741 RCR_PKT_BUF_ADDR_SHIFT_FULL); 1742 #endif 1743 HXGE_DEBUG_MSG((hxgep, RX2_CTL, 1744 "==> (rbr) hxge_receive_packet: entry 0x%0llx " 1745 "full pkt_buf_addr_pp $%p l2_len %d", 1746 rcr_entry, pkt_buf_addr_pp, l2_len)); 1747 1748 rx_rbr_p = rcr_p->rx_rbr_p; 1749 rx_msg_ring_p = rx_rbr_p->rx_msg_ring; 1750 1751 if (first_entry) { 1752 hdr_size = (rcr_p->full_hdr_flag ? RXDMA_HDR_SIZE_FULL : 1753 RXDMA_HDR_SIZE_DEFAULT); 1754 1755 HXGE_DEBUG_MSG((hxgep, RX_CTL, 1756 "==> hxge_receive_packet: first entry 0x%016llx " 1757 "pkt_buf_addr_pp $%p l2_len %d hdr %d", 1758 rcr_entry, pkt_buf_addr_pp, l2_len, hdr_size)); 1759 } 1760 1761 MUTEX_ENTER(&rx_rbr_p->lock); 1762 1763 HXGE_DEBUG_MSG((hxgep, RX_CTL, 1764 "==> (rbr 1) hxge_receive_packet: entry 0x%0llx " 1765 "full pkt_buf_addr_pp $%p l2_len %d", 1766 rcr_entry, pkt_buf_addr_pp, l2_len)); 1767 1768 /* 1769 * Packet buffer address in the completion entry points to the starting 1770 * buffer address (offset 0). Use the starting buffer address to locate 1771 * the corresponding kernel address. 1772 */ 1773 status = hxge_rxbuf_pp_to_vp(hxgep, rx_rbr_p, 1774 pktbufsz_type, pkt_buf_addr_pp, &pkt_buf_addr_p, 1775 &buf_offset, &msg_index); 1776 1777 HXGE_DEBUG_MSG((hxgep, RX_CTL, 1778 "==> (rbr 2) hxge_receive_packet: entry 0x%0llx " 1779 "full pkt_buf_addr_pp $%p l2_len %d", 1780 rcr_entry, pkt_buf_addr_pp, l2_len)); 1781 1782 if (status != HXGE_OK) { 1783 MUTEX_EXIT(&rx_rbr_p->lock); 1784 HXGE_DEBUG_MSG((hxgep, RX_CTL, 1785 "<== hxge_receive_packet: found vaddr failed %d", status)); 1786 return; 1787 } 1788 1789 HXGE_DEBUG_MSG((hxgep, RX2_CTL, 1790 "==> (rbr 3) hxge_receive_packet: entry 0x%0llx " 1791 "full pkt_buf_addr_pp $%p l2_len %d", 1792 rcr_entry, pkt_buf_addr_pp, l2_len)); 1793 HXGE_DEBUG_MSG((hxgep, RX2_CTL, 1794 "==> (rbr 4 msgindex %d) hxge_receive_packet: entry 0x%0llx " 1795 "full pkt_buf_addr_pp $%p l2_len %d", 1796 msg_index, rcr_entry, pkt_buf_addr_pp, l2_len)); 1797 1798 if (msg_index >= rx_rbr_p->tnblocks) { 1799 MUTEX_EXIT(&rx_rbr_p->lock); 1800 HXGE_DEBUG_MSG((hxgep, RX2_CTL, 1801 "==> hxge_receive_packet: FATAL msg_index (%d) " 1802 "should be smaller than tnblocks (%d)\n", 1803 msg_index, rx_rbr_p->tnblocks)); 1804 return; 1805 } 1806 1807 rx_msg_p = rx_msg_ring_p[msg_index]; 1808 1809 HXGE_DEBUG_MSG((hxgep, RX2_CTL, 1810 "==> (rbr 4 msgindex %d) hxge_receive_packet: entry 0x%0llx " 1811 "full pkt_buf_addr_pp $%p l2_len %d", 1812 msg_index, rcr_entry, pkt_buf_addr_pp, l2_len)); 1813 1814 switch (pktbufsz_type) { 1815 case RCR_PKTBUFSZ_0: 1816 bsize = rx_rbr_p->pkt_buf_size0_bytes; 1817 HXGE_DEBUG_MSG((hxgep, RX2_CTL, 1818 "==> hxge_receive_packet: 0 buf %d", bsize)); 1819 break; 1820 case RCR_PKTBUFSZ_1: 1821 bsize = rx_rbr_p->pkt_buf_size1_bytes; 1822 HXGE_DEBUG_MSG((hxgep, RX2_CTL, 1823 "==> hxge_receive_packet: 1 buf %d", bsize)); 1824 break; 1825 case RCR_PKTBUFSZ_2: 1826 bsize = rx_rbr_p->pkt_buf_size2_bytes; 1827 HXGE_DEBUG_MSG((hxgep, RX_CTL, 1828 "==> hxge_receive_packet: 2 buf %d", bsize)); 1829 break; 1830 case RCR_SINGLE_BLOCK: 1831 bsize = rx_msg_p->block_size; 1832 HXGE_DEBUG_MSG((hxgep, RX2_CTL, 1833 "==> hxge_receive_packet: single %d", bsize)); 1834 1835 break; 1836 default: 1837 MUTEX_EXIT(&rx_rbr_p->lock); 1838 return; 1839 } 1840 1841 DMA_COMMON_SYNC_OFFSET(rx_msg_p->buf_dma, 1842 (buf_offset + sw_offset_bytes), (hdr_size + l2_len), 1843 DDI_DMA_SYNC_FORCPU); 1844 1845 HXGE_DEBUG_MSG((hxgep, RX2_CTL, 1846 "==> hxge_receive_packet: after first dump:usage count")); 1847 1848 if (rx_msg_p->cur_usage_cnt == 0) { 1849 atomic_inc_32(&rx_rbr_p->rbr_used); 1850 if (rx_rbr_p->rbr_use_bcopy) { 1851 atomic_inc_32(&rx_rbr_p->rbr_consumed); 1852 if (rx_rbr_p->rbr_consumed < 1853 rx_rbr_p->rbr_threshold_hi) { 1854 if (rx_rbr_p->rbr_threshold_lo == 0 || 1855 ((rx_rbr_p->rbr_consumed >= 1856 rx_rbr_p->rbr_threshold_lo) && 1857 (rx_rbr_p->rbr_bufsize_type >= 1858 pktbufsz_type))) { 1859 rx_msg_p->rx_use_bcopy = B_TRUE; 1860 } 1861 } else { 1862 rx_msg_p->rx_use_bcopy = B_TRUE; 1863 } 1864 } 1865 HXGE_DEBUG_MSG((hxgep, RX2_CTL, 1866 "==> hxge_receive_packet: buf %d (new block) ", bsize)); 1867 1868 rx_msg_p->pkt_buf_size_code = pktbufsz_type; 1869 rx_msg_p->pkt_buf_size = bsize; 1870 rx_msg_p->cur_usage_cnt = 1; 1871 if (pktbufsz_type == RCR_SINGLE_BLOCK) { 1872 HXGE_DEBUG_MSG((hxgep, RX2_CTL, 1873 "==> hxge_receive_packet: buf %d (single block) ", 1874 bsize)); 1875 /* 1876 * Buffer can be reused once the free function is 1877 * called. 1878 */ 1879 rx_msg_p->max_usage_cnt = 1; 1880 buffer_free = B_TRUE; 1881 } else { 1882 rx_msg_p->max_usage_cnt = rx_msg_p->block_size / bsize; 1883 if (rx_msg_p->max_usage_cnt == 1) { 1884 buffer_free = B_TRUE; 1885 } 1886 } 1887 } else { 1888 rx_msg_p->cur_usage_cnt++; 1889 if (rx_msg_p->cur_usage_cnt == rx_msg_p->max_usage_cnt) { 1890 buffer_free = B_TRUE; 1891 } 1892 } 1893 1894 HXGE_DEBUG_MSG((hxgep, RX_CTL, 1895 "msgbuf index = %d l2len %d bytes usage %d max_usage %d ", 1896 msg_index, l2_len, 1897 rx_msg_p->cur_usage_cnt, rx_msg_p->max_usage_cnt)); 1898 1899 if (error_type) { 1900 rdc_stats->ierrors++; 1901 /* Update error stats */ 1902 rdc_stats->errlog.compl_err_type = error_type; 1903 HXGE_FM_REPORT_ERROR(hxgep, NULL, HXGE_FM_EREPORT_RDMC_RCR_ERR); 1904 1905 if (error_type & RCR_CTRL_FIFO_DED) { 1906 rdc_stats->ctrl_fifo_ecc_err++; 1907 HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL, 1908 " hxge_receive_packet: " 1909 " channel %d RCR ctrl_fifo_ded error", channel)); 1910 } else if (error_type & RCR_DATA_FIFO_DED) { 1911 rdc_stats->data_fifo_ecc_err++; 1912 HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL, 1913 " hxge_receive_packet: channel %d" 1914 " RCR data_fifo_ded error", channel)); 1915 } 1916 1917 /* 1918 * Update and repost buffer block if max usage count is 1919 * reached. 1920 */ 1921 if (error_send_up == B_FALSE) { 1922 atomic_inc_32(&rx_msg_p->ref_cnt); 1923 if (buffer_free == B_TRUE) { 1924 rx_msg_p->free = B_TRUE; 1925 } 1926 1927 MUTEX_EXIT(&rx_rbr_p->lock); 1928 hxge_freeb(rx_msg_p); 1929 return; 1930 } 1931 } 1932 1933 HXGE_DEBUG_MSG((hxgep, RX2_CTL, 1934 "==> hxge_receive_packet: DMA sync second ")); 1935 1936 bytes_read = rcr_p->rcvd_pkt_bytes; 1937 skip_len = sw_offset_bytes + hdr_size; 1938 1939 if (first_entry) { 1940 header0 = rx_msg_p->buffer[buf_offset]; 1941 no_port_bit = header0 & NO_PORT_BIT; 1942 header1 = rx_msg_p->buffer[buf_offset + 1]; 1943 l4_cs_eq_bit = header1 & L4_CS_EQ_BIT; 1944 } 1945 1946 if (!rx_msg_p->rx_use_bcopy) { 1947 /* 1948 * For loaned up buffers, the driver reference count 1949 * will be incremented first and then the free state. 1950 */ 1951 if ((nmp = hxge_dupb(rx_msg_p, buf_offset, bsize)) != NULL) { 1952 if (first_entry) { 1953 nmp->b_rptr = &nmp->b_rptr[skip_len]; 1954 if (l2_len < bsize - skip_len) { 1955 nmp->b_wptr = &nmp->b_rptr[l2_len]; 1956 } else { 1957 nmp->b_wptr = &nmp->b_rptr[bsize 1958 - skip_len]; 1959 } 1960 } else { 1961 if (l2_len - bytes_read < bsize) { 1962 nmp->b_wptr = 1963 &nmp->b_rptr[l2_len - bytes_read]; 1964 } else { 1965 nmp->b_wptr = &nmp->b_rptr[bsize]; 1966 } 1967 } 1968 } 1969 } else { 1970 if (first_entry) { 1971 nmp = hxge_dupb_bcopy(rx_msg_p, buf_offset + skip_len, 1972 l2_len < bsize - skip_len ? 1973 l2_len : bsize - skip_len); 1974 } else { 1975 nmp = hxge_dupb_bcopy(rx_msg_p, buf_offset, 1976 l2_len - bytes_read < bsize ? 1977 l2_len - bytes_read : bsize); 1978 } 1979 } 1980 1981 if (nmp != NULL) { 1982 if (first_entry) 1983 bytes_read = nmp->b_wptr - nmp->b_rptr; 1984 else 1985 bytes_read += nmp->b_wptr - nmp->b_rptr; 1986 1987 HXGE_DEBUG_MSG((hxgep, RX_CTL, 1988 "==> hxge_receive_packet after dupb: " 1989 "rbr consumed %d " 1990 "pktbufsz_type %d " 1991 "nmp $%p rptr $%p wptr $%p " 1992 "buf_offset %d bzise %d l2_len %d skip_len %d", 1993 rx_rbr_p->rbr_consumed, 1994 pktbufsz_type, 1995 nmp, nmp->b_rptr, nmp->b_wptr, 1996 buf_offset, bsize, l2_len, skip_len)); 1997 } else { 1998 cmn_err(CE_WARN, "!hxge_receive_packet: update stats (error)"); 1999 2000 atomic_inc_32(&rx_msg_p->ref_cnt); 2001 if (buffer_free == B_TRUE) { 2002 rx_msg_p->free = B_TRUE; 2003 } 2004 2005 MUTEX_EXIT(&rx_rbr_p->lock); 2006 hxge_freeb(rx_msg_p); 2007 return; 2008 } 2009 2010 if (buffer_free == B_TRUE) { 2011 rx_msg_p->free = B_TRUE; 2012 } 2013 2014 /* 2015 * ERROR, FRAG and PKT_TYPE are only reported in the first entry. If a 2016 * packet is not fragmented and no error bit is set, then L4 checksum 2017 * is OK. 2018 */ 2019 is_valid = (nmp != NULL); 2020 if (first_entry) { 2021 rdc_stats->ipackets++; /* count only 1st seg for jumbo */ 2022 if (l2_len > (STD_FRAME_SIZE - ETHERFCSL)) 2023 rdc_stats->jumbo_pkts++; 2024 rdc_stats->ibytes += skip_len + l2_len < bsize ? 2025 l2_len : bsize; 2026 } else { 2027 /* 2028 * Add the current portion of the packet to the kstats. 2029 * The current portion of the packet is calculated by using 2030 * length of the packet and the previously received portion. 2031 */ 2032 rdc_stats->ibytes += l2_len - rcr_p->rcvd_pkt_bytes < bsize ? 2033 l2_len - rcr_p->rcvd_pkt_bytes : bsize; 2034 } 2035 2036 rcr_p->rcvd_pkt_bytes = bytes_read; 2037 2038 if (rx_msg_p->free && rx_msg_p->rx_use_bcopy) { 2039 atomic_inc_32(&rx_msg_p->ref_cnt); 2040 MUTEX_EXIT(&rx_rbr_p->lock); 2041 hxge_freeb(rx_msg_p); 2042 } else 2043 MUTEX_EXIT(&rx_rbr_p->lock); 2044 2045 if (is_valid) { 2046 nmp->b_cont = NULL; 2047 if (first_entry) { 2048 *mp = nmp; 2049 *mp_cont = NULL; 2050 } else { 2051 *mp_cont = nmp; 2052 } 2053 } 2054 2055 /* 2056 * Update stats and hardware checksuming. 2057 */ 2058 if (is_valid && !multi) { 2059 is_tcp_udp = ((pkt_type == RCR_PKT_IS_TCP || 2060 pkt_type == RCR_PKT_IS_UDP) ? B_TRUE : B_FALSE); 2061 2062 if (!no_port_bit && l4_cs_eq_bit && is_tcp_udp && !error_type) { 2063 mac_hcksum_set(nmp, 0, 0, 0, 0, HCK_FULLCKSUM_OK); 2064 2065 HXGE_DEBUG_MSG((hxgep, RX_CTL, 2066 "==> hxge_receive_packet: Full tcp/udp cksum " 2067 "is_valid 0x%x multi %d error %d", 2068 is_valid, multi, error_type)); 2069 } 2070 } 2071 2072 HXGE_DEBUG_MSG((hxgep, RX2_CTL, 2073 "==> hxge_receive_packet: *mp 0x%016llx", *mp)); 2074 2075 *multi_p = (multi == RCR_MULTI_MASK); 2076 2077 HXGE_DEBUG_MSG((hxgep, RX_CTL, "<== hxge_receive_packet: " 2078 "multi %d nmp 0x%016llx *mp 0x%016llx *mp_cont 0x%016llx", 2079 *multi_p, nmp, *mp, *mp_cont)); 2080 } 2081 2082 static void 2083 hxge_rx_rbr_empty_recover(p_hxge_t hxgep, uint8_t channel) 2084 { 2085 hpi_handle_t handle; 2086 p_rx_rcr_ring_t rcrp; 2087 p_rx_rbr_ring_t rbrp; 2088 2089 rcrp = hxgep->rx_rcr_rings->rcr_rings[channel]; 2090 rbrp = rcrp->rx_rbr_p; 2091 handle = HXGE_DEV_HPI_HANDLE(hxgep); 2092 2093 /* 2094 * Wait for the channel to be quiet 2095 */ 2096 (void) hpi_rxdma_cfg_rdc_wait_for_qst(handle, channel); 2097 2098 /* 2099 * Post page will accumulate some buffers before re-enabling 2100 * the DMA channel. 2101 */ 2102 2103 MUTEX_ENTER(&rbrp->post_lock); 2104 if ((rbrp->rbb_max - rbrp->rbr_used) >= HXGE_RBR_EMPTY_THRESHOLD) { 2105 hxge_rbr_empty_restore(hxgep, rbrp); 2106 } else { 2107 rbrp->rbr_is_empty = B_TRUE; 2108 } 2109 MUTEX_EXIT(&rbrp->post_lock); 2110 } 2111 2112 2113 /*ARGSUSED*/ 2114 static hxge_status_t 2115 hxge_rx_err_evnts(p_hxge_t hxgep, uint_t index, p_hxge_ldv_t ldvp, 2116 rdc_stat_t cs) 2117 { 2118 p_hxge_rx_ring_stats_t rdc_stats; 2119 hpi_handle_t handle; 2120 boolean_t rxchan_fatal = B_FALSE; 2121 uint8_t channel; 2122 hxge_status_t status = HXGE_OK; 2123 2124 HXGE_DEBUG_MSG((hxgep, INT_CTL, "==> hxge_rx_err_evnts")); 2125 2126 handle = HXGE_DEV_HPI_HANDLE(hxgep); 2127 channel = ldvp->channel; 2128 2129 rdc_stats = &hxgep->statsp->rdc_stats[ldvp->vdma_index]; 2130 2131 if (cs.bits.rbr_cpl_to) { 2132 rdc_stats->rbr_tmout++; 2133 HXGE_FM_REPORT_ERROR(hxgep, channel, 2134 HXGE_FM_EREPORT_RDMC_RBR_CPL_TO); 2135 rxchan_fatal = B_TRUE; 2136 HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL, 2137 "==> hxge_rx_err_evnts(channel %d): " 2138 "fatal error: rx_rbr_timeout", channel)); 2139 } 2140 2141 if ((cs.bits.rcr_shadow_par_err) || (cs.bits.rbr_prefetch_par_err)) { 2142 (void) hpi_rxdma_ring_perr_stat_get(handle, 2143 &rdc_stats->errlog.pre_par, &rdc_stats->errlog.sha_par); 2144 } 2145 2146 if (cs.bits.rcr_shadow_par_err) { 2147 rdc_stats->rcr_sha_par++; 2148 HXGE_FM_REPORT_ERROR(hxgep, channel, 2149 HXGE_FM_EREPORT_RDMC_RCR_SHA_PAR); 2150 rxchan_fatal = B_TRUE; 2151 HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL, 2152 "==> hxge_rx_err_evnts(channel %d): " 2153 "fatal error: rcr_shadow_par_err", channel)); 2154 } 2155 2156 if (cs.bits.rbr_prefetch_par_err) { 2157 rdc_stats->rbr_pre_par++; 2158 HXGE_FM_REPORT_ERROR(hxgep, channel, 2159 HXGE_FM_EREPORT_RDMC_RBR_PRE_PAR); 2160 rxchan_fatal = B_TRUE; 2161 HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL, 2162 "==> hxge_rx_err_evnts(channel %d): " 2163 "fatal error: rbr_prefetch_par_err", channel)); 2164 } 2165 2166 if (cs.bits.rbr_pre_empty) { 2167 rdc_stats->rbr_pre_empty++; 2168 HXGE_FM_REPORT_ERROR(hxgep, channel, 2169 HXGE_FM_EREPORT_RDMC_RBR_PRE_EMPTY); 2170 rxchan_fatal = B_TRUE; 2171 HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL, 2172 "==> hxge_rx_err_evnts(channel %d): " 2173 "fatal error: rbr_pre_empty", channel)); 2174 } 2175 2176 if (cs.bits.peu_resp_err) { 2177 rdc_stats->peu_resp_err++; 2178 HXGE_FM_REPORT_ERROR(hxgep, channel, 2179 HXGE_FM_EREPORT_RDMC_PEU_RESP_ERR); 2180 rxchan_fatal = B_TRUE; 2181 HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL, 2182 "==> hxge_rx_err_evnts(channel %d): " 2183 "fatal error: peu_resp_err", channel)); 2184 } 2185 2186 if (cs.bits.rcr_thres) { 2187 rdc_stats->rcr_thres++; 2188 } 2189 2190 if (cs.bits.rcr_to) { 2191 rdc_stats->rcr_to++; 2192 } 2193 2194 if (cs.bits.rcr_shadow_full) { 2195 rdc_stats->rcr_shadow_full++; 2196 HXGE_FM_REPORT_ERROR(hxgep, channel, 2197 HXGE_FM_EREPORT_RDMC_RCR_SHA_FULL); 2198 rxchan_fatal = B_TRUE; 2199 HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL, 2200 "==> hxge_rx_err_evnts(channel %d): " 2201 "fatal error: rcr_shadow_full", channel)); 2202 } 2203 2204 if (cs.bits.rcr_full) { 2205 rdc_stats->rcrfull++; 2206 HXGE_FM_REPORT_ERROR(hxgep, channel, 2207 HXGE_FM_EREPORT_RDMC_RCRFULL); 2208 rxchan_fatal = B_TRUE; 2209 HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL, 2210 "==> hxge_rx_err_evnts(channel %d): " 2211 "fatal error: rcrfull error", channel)); 2212 } 2213 2214 if (cs.bits.rbr_empty) { 2215 rdc_stats->rbr_empty++; 2216 hxge_rx_rbr_empty_recover(hxgep, channel); 2217 } 2218 2219 if (cs.bits.rbr_full) { 2220 rdc_stats->rbrfull++; 2221 HXGE_FM_REPORT_ERROR(hxgep, channel, 2222 HXGE_FM_EREPORT_RDMC_RBRFULL); 2223 rxchan_fatal = B_TRUE; 2224 HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL, 2225 "==> hxge_rx_err_evnts(channel %d): " 2226 "fatal error: rbr_full error", channel)); 2227 } 2228 2229 if (rxchan_fatal) { 2230 p_rx_rcr_ring_t rcrp; 2231 p_rx_rbr_ring_t rbrp; 2232 2233 rcrp = hxgep->rx_rcr_rings->rcr_rings[channel]; 2234 rbrp = rcrp->rx_rbr_p; 2235 2236 HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL, 2237 " hxge_rx_err_evnts: fatal error on Channel #%d\n", 2238 channel)); 2239 2240 MUTEX_ENTER(&rbrp->post_lock); 2241 /* This function needs to be inside the post_lock */ 2242 status = hxge_rxdma_fatal_err_recover(hxgep, channel); 2243 MUTEX_EXIT(&rbrp->post_lock); 2244 if (status == HXGE_OK) { 2245 FM_SERVICE_RESTORED(hxgep); 2246 } 2247 } 2248 2249 HXGE_DEBUG_MSG((hxgep, INT_CTL, "<== hxge_rx_err_evnts")); 2250 return (status); 2251 } 2252 2253 static hxge_status_t 2254 hxge_map_rxdma(p_hxge_t hxgep) 2255 { 2256 int i, ndmas; 2257 uint16_t channel; 2258 p_rx_rbr_rings_t rx_rbr_rings; 2259 p_rx_rbr_ring_t *rbr_rings; 2260 p_rx_rcr_rings_t rx_rcr_rings; 2261 p_rx_rcr_ring_t *rcr_rings; 2262 p_rx_mbox_areas_t rx_mbox_areas_p; 2263 p_rx_mbox_t *rx_mbox_p; 2264 p_hxge_dma_pool_t dma_buf_poolp; 2265 p_hxge_dma_common_t *dma_buf_p; 2266 p_hxge_dma_pool_t dma_rbr_cntl_poolp; 2267 p_hxge_dma_common_t *dma_rbr_cntl_p; 2268 p_hxge_dma_pool_t dma_rcr_cntl_poolp; 2269 p_hxge_dma_common_t *dma_rcr_cntl_p; 2270 p_hxge_dma_pool_t dma_mbox_cntl_poolp; 2271 p_hxge_dma_common_t *dma_mbox_cntl_p; 2272 uint32_t *num_chunks; 2273 hxge_status_t status = HXGE_OK; 2274 2275 HXGE_DEBUG_MSG((hxgep, MEM2_CTL, "==> hxge_map_rxdma")); 2276 2277 dma_buf_poolp = hxgep->rx_buf_pool_p; 2278 dma_rbr_cntl_poolp = hxgep->rx_rbr_cntl_pool_p; 2279 dma_rcr_cntl_poolp = hxgep->rx_rcr_cntl_pool_p; 2280 dma_mbox_cntl_poolp = hxgep->rx_mbox_cntl_pool_p; 2281 2282 if (!dma_buf_poolp->buf_allocated || 2283 !dma_rbr_cntl_poolp->buf_allocated || 2284 !dma_rcr_cntl_poolp->buf_allocated || 2285 !dma_mbox_cntl_poolp->buf_allocated) { 2286 HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL, 2287 "<== hxge_map_rxdma: buf not allocated")); 2288 return (HXGE_ERROR); 2289 } 2290 2291 ndmas = dma_buf_poolp->ndmas; 2292 if (!ndmas) { 2293 HXGE_DEBUG_MSG((hxgep, RX_CTL, 2294 "<== hxge_map_rxdma: no dma allocated")); 2295 return (HXGE_ERROR); 2296 } 2297 2298 num_chunks = dma_buf_poolp->num_chunks; 2299 dma_buf_p = dma_buf_poolp->dma_buf_pool_p; 2300 dma_rbr_cntl_p = dma_rbr_cntl_poolp->dma_buf_pool_p; 2301 dma_rcr_cntl_p = dma_rcr_cntl_poolp->dma_buf_pool_p; 2302 dma_mbox_cntl_p = dma_mbox_cntl_poolp->dma_buf_pool_p; 2303 2304 rx_rbr_rings = (p_rx_rbr_rings_t) 2305 KMEM_ZALLOC(sizeof (rx_rbr_rings_t), KM_SLEEP); 2306 rbr_rings = (p_rx_rbr_ring_t *)KMEM_ZALLOC( 2307 sizeof (p_rx_rbr_ring_t) * ndmas, KM_SLEEP); 2308 2309 rx_rcr_rings = (p_rx_rcr_rings_t) 2310 KMEM_ZALLOC(sizeof (rx_rcr_rings_t), KM_SLEEP); 2311 rcr_rings = (p_rx_rcr_ring_t *)KMEM_ZALLOC( 2312 sizeof (p_rx_rcr_ring_t) * ndmas, KM_SLEEP); 2313 2314 rx_mbox_areas_p = (p_rx_mbox_areas_t) 2315 KMEM_ZALLOC(sizeof (rx_mbox_areas_t), KM_SLEEP); 2316 rx_mbox_p = (p_rx_mbox_t *)KMEM_ZALLOC( 2317 sizeof (p_rx_mbox_t) * ndmas, KM_SLEEP); 2318 2319 /* 2320 * Timeout should be set based on the system clock divider. 2321 * The following timeout value of 1 assumes that the 2322 * granularity (1000) is 3 microseconds running at 300MHz. 2323 */ 2324 2325 hxgep->intr_threshold = RXDMA_RCR_PTHRES_DEFAULT; 2326 hxgep->intr_timeout = RXDMA_RCR_TO_DEFAULT; 2327 2328 /* 2329 * Map descriptors from the buffer polls for each dam channel. 2330 */ 2331 for (i = 0; i < ndmas; i++) { 2332 if (((p_hxge_dma_common_t)dma_buf_p[i]) == NULL) { 2333 status = HXGE_ERROR; 2334 goto hxge_map_rxdma_fail1; 2335 } 2336 2337 /* 2338 * Set up and prepare buffer blocks, descriptors and mailbox. 2339 */ 2340 channel = ((p_hxge_dma_common_t)dma_buf_p[i])->dma_channel; 2341 status = hxge_map_rxdma_channel(hxgep, channel, 2342 (p_hxge_dma_common_t *)&dma_buf_p[i], 2343 (p_rx_rbr_ring_t *)&rbr_rings[i], 2344 num_chunks[i], 2345 (p_hxge_dma_common_t *)&dma_rbr_cntl_p[i], 2346 (p_hxge_dma_common_t *)&dma_rcr_cntl_p[i], 2347 (p_hxge_dma_common_t *)&dma_mbox_cntl_p[i], 2348 (p_rx_rcr_ring_t *)&rcr_rings[i], 2349 (p_rx_mbox_t *)&rx_mbox_p[i]); 2350 if (status != HXGE_OK) { 2351 goto hxge_map_rxdma_fail1; 2352 } 2353 rbr_rings[i]->index = (uint16_t)i; 2354 rcr_rings[i]->index = (uint16_t)i; 2355 rcr_rings[i]->rdc_stats = &hxgep->statsp->rdc_stats[i]; 2356 } 2357 2358 rx_rbr_rings->ndmas = rx_rcr_rings->ndmas = ndmas; 2359 rx_rbr_rings->rbr_rings = rbr_rings; 2360 hxgep->rx_rbr_rings = rx_rbr_rings; 2361 rx_rcr_rings->rcr_rings = rcr_rings; 2362 hxgep->rx_rcr_rings = rx_rcr_rings; 2363 2364 rx_mbox_areas_p->rxmbox_areas = rx_mbox_p; 2365 hxgep->rx_mbox_areas_p = rx_mbox_areas_p; 2366 2367 goto hxge_map_rxdma_exit; 2368 2369 hxge_map_rxdma_fail1: 2370 HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL, 2371 "==> hxge_map_rxdma: unmap rbr,rcr (status 0x%x channel %d i %d)", 2372 status, channel, i)); 2373 i--; 2374 for (; i >= 0; i--) { 2375 channel = ((p_hxge_dma_common_t)dma_buf_p[i])->dma_channel; 2376 hxge_unmap_rxdma_channel(hxgep, channel, 2377 rbr_rings[i], rcr_rings[i], rx_mbox_p[i]); 2378 } 2379 2380 KMEM_FREE(rbr_rings, sizeof (p_rx_rbr_ring_t) * ndmas); 2381 KMEM_FREE(rx_rbr_rings, sizeof (rx_rbr_rings_t)); 2382 KMEM_FREE(rcr_rings, sizeof (p_rx_rcr_ring_t) * ndmas); 2383 KMEM_FREE(rx_rcr_rings, sizeof (rx_rcr_rings_t)); 2384 KMEM_FREE(rx_mbox_p, sizeof (p_rx_mbox_t) * ndmas); 2385 KMEM_FREE(rx_mbox_areas_p, sizeof (rx_mbox_areas_t)); 2386 2387 hxge_map_rxdma_exit: 2388 HXGE_DEBUG_MSG((hxgep, MEM2_CTL, 2389 "<== hxge_map_rxdma: (status 0x%x channel %d)", status, channel)); 2390 2391 return (status); 2392 } 2393 2394 static void 2395 hxge_unmap_rxdma(p_hxge_t hxgep) 2396 { 2397 int i, ndmas; 2398 uint16_t channel; 2399 p_rx_rbr_rings_t rx_rbr_rings; 2400 p_rx_rbr_ring_t *rbr_rings; 2401 p_rx_rcr_rings_t rx_rcr_rings; 2402 p_rx_rcr_ring_t *rcr_rings; 2403 p_rx_mbox_areas_t rx_mbox_areas_p; 2404 p_rx_mbox_t *rx_mbox_p; 2405 p_hxge_dma_pool_t dma_buf_poolp; 2406 p_hxge_dma_pool_t dma_rbr_cntl_poolp; 2407 p_hxge_dma_pool_t dma_rcr_cntl_poolp; 2408 p_hxge_dma_pool_t dma_mbox_cntl_poolp; 2409 p_hxge_dma_common_t *dma_buf_p; 2410 2411 HXGE_DEBUG_MSG((hxgep, MEM2_CTL, "==> hxge_unmap_rxdma")); 2412 2413 dma_buf_poolp = hxgep->rx_buf_pool_p; 2414 dma_rbr_cntl_poolp = hxgep->rx_rbr_cntl_pool_p; 2415 dma_rcr_cntl_poolp = hxgep->rx_rcr_cntl_pool_p; 2416 dma_mbox_cntl_poolp = hxgep->rx_mbox_cntl_pool_p; 2417 2418 if (!dma_buf_poolp->buf_allocated || 2419 !dma_rbr_cntl_poolp->buf_allocated || 2420 !dma_rcr_cntl_poolp->buf_allocated || 2421 !dma_mbox_cntl_poolp->buf_allocated) { 2422 HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL, 2423 "<== hxge_unmap_rxdma: NULL buf pointers")); 2424 return; 2425 } 2426 2427 rx_rbr_rings = hxgep->rx_rbr_rings; 2428 rx_rcr_rings = hxgep->rx_rcr_rings; 2429 if (rx_rbr_rings == NULL || rx_rcr_rings == NULL) { 2430 HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL, 2431 "<== hxge_unmap_rxdma: NULL pointers")); 2432 return; 2433 } 2434 2435 ndmas = rx_rbr_rings->ndmas; 2436 if (!ndmas) { 2437 HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL, 2438 "<== hxge_unmap_rxdma: no channel")); 2439 return; 2440 } 2441 2442 HXGE_DEBUG_MSG((hxgep, MEM2_CTL, 2443 "==> hxge_unmap_rxdma (ndmas %d)", ndmas)); 2444 2445 rbr_rings = rx_rbr_rings->rbr_rings; 2446 rcr_rings = rx_rcr_rings->rcr_rings; 2447 rx_mbox_areas_p = hxgep->rx_mbox_areas_p; 2448 rx_mbox_p = rx_mbox_areas_p->rxmbox_areas; 2449 dma_buf_p = dma_buf_poolp->dma_buf_pool_p; 2450 2451 for (i = 0; i < ndmas; i++) { 2452 channel = ((p_hxge_dma_common_t)dma_buf_p[i])->dma_channel; 2453 HXGE_DEBUG_MSG((hxgep, MEM2_CTL, 2454 "==> hxge_unmap_rxdma (ndmas %d) channel %d", 2455 ndmas, channel)); 2456 (void) hxge_unmap_rxdma_channel(hxgep, channel, 2457 (p_rx_rbr_ring_t)rbr_rings[i], 2458 (p_rx_rcr_ring_t)rcr_rings[i], 2459 (p_rx_mbox_t)rx_mbox_p[i]); 2460 } 2461 2462 KMEM_FREE(rx_rbr_rings, sizeof (rx_rbr_rings_t)); 2463 KMEM_FREE(rbr_rings, sizeof (p_rx_rbr_ring_t) * ndmas); 2464 KMEM_FREE(rx_rcr_rings, sizeof (rx_rcr_rings_t)); 2465 KMEM_FREE(rcr_rings, sizeof (p_rx_rcr_ring_t) * ndmas); 2466 KMEM_FREE(rx_mbox_areas_p, sizeof (rx_mbox_areas_t)); 2467 KMEM_FREE(rx_mbox_p, sizeof (p_rx_mbox_t) * ndmas); 2468 2469 HXGE_DEBUG_MSG((hxgep, MEM2_CTL, "<== hxge_unmap_rxdma")); 2470 } 2471 2472 hxge_status_t 2473 hxge_map_rxdma_channel(p_hxge_t hxgep, uint16_t channel, 2474 p_hxge_dma_common_t *dma_buf_p, p_rx_rbr_ring_t *rbr_p, 2475 uint32_t num_chunks, p_hxge_dma_common_t *dma_rbr_cntl_p, 2476 p_hxge_dma_common_t *dma_rcr_cntl_p, p_hxge_dma_common_t *dma_mbox_cntl_p, 2477 p_rx_rcr_ring_t *rcr_p, p_rx_mbox_t *rx_mbox_p) 2478 { 2479 int status = HXGE_OK; 2480 2481 /* 2482 * Set up and prepare buffer blocks, descriptors and mailbox. 2483 */ 2484 HXGE_DEBUG_MSG((hxgep, MEM2_CTL, 2485 "==> hxge_map_rxdma_channel (channel %d)", channel)); 2486 2487 /* 2488 * Receive buffer blocks 2489 */ 2490 status = hxge_map_rxdma_channel_buf_ring(hxgep, channel, 2491 dma_buf_p, rbr_p, num_chunks); 2492 if (status != HXGE_OK) { 2493 HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL, 2494 "==> hxge_map_rxdma_channel (channel %d): " 2495 "map buffer failed 0x%x", channel, status)); 2496 goto hxge_map_rxdma_channel_exit; 2497 } 2498 2499 /* 2500 * Receive block ring, completion ring and mailbox. 2501 */ 2502 status = hxge_map_rxdma_channel_cfg_ring(hxgep, channel, 2503 dma_rbr_cntl_p, dma_rcr_cntl_p, dma_mbox_cntl_p, 2504 rbr_p, rcr_p, rx_mbox_p); 2505 if (status != HXGE_OK) { 2506 HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL, 2507 "==> hxge_map_rxdma_channel (channel %d): " 2508 "map config failed 0x%x", channel, status)); 2509 goto hxge_map_rxdma_channel_fail2; 2510 } 2511 goto hxge_map_rxdma_channel_exit; 2512 2513 hxge_map_rxdma_channel_fail3: 2514 /* Free rbr, rcr */ 2515 HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL, 2516 "==> hxge_map_rxdma_channel: free rbr/rcr (status 0x%x channel %d)", 2517 status, channel)); 2518 hxge_unmap_rxdma_channel_cfg_ring(hxgep, *rcr_p, *rx_mbox_p); 2519 2520 hxge_map_rxdma_channel_fail2: 2521 /* Free buffer blocks */ 2522 HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL, 2523 "==> hxge_map_rxdma_channel: free rx buffers" 2524 "(hxgep 0x%x status 0x%x channel %d)", 2525 hxgep, status, channel)); 2526 hxge_unmap_rxdma_channel_buf_ring(hxgep, *rbr_p); 2527 2528 status = HXGE_ERROR; 2529 2530 hxge_map_rxdma_channel_exit: 2531 HXGE_DEBUG_MSG((hxgep, MEM2_CTL, 2532 "<== hxge_map_rxdma_channel: (hxgep 0x%x status 0x%x channel %d)", 2533 hxgep, status, channel)); 2534 2535 return (status); 2536 } 2537 2538 /*ARGSUSED*/ 2539 static void 2540 hxge_unmap_rxdma_channel(p_hxge_t hxgep, uint16_t channel, 2541 p_rx_rbr_ring_t rbr_p, p_rx_rcr_ring_t rcr_p, p_rx_mbox_t rx_mbox_p) 2542 { 2543 HXGE_DEBUG_MSG((hxgep, MEM2_CTL, 2544 "==> hxge_unmap_rxdma_channel (channel %d)", channel)); 2545 2546 /* 2547 * unmap receive block ring, completion ring and mailbox. 2548 */ 2549 (void) hxge_unmap_rxdma_channel_cfg_ring(hxgep, rcr_p, rx_mbox_p); 2550 2551 /* unmap buffer blocks */ 2552 (void) hxge_unmap_rxdma_channel_buf_ring(hxgep, rbr_p); 2553 2554 HXGE_DEBUG_MSG((hxgep, MEM2_CTL, "<== hxge_unmap_rxdma_channel")); 2555 } 2556 2557 /*ARGSUSED*/ 2558 static hxge_status_t 2559 hxge_map_rxdma_channel_cfg_ring(p_hxge_t hxgep, uint16_t dma_channel, 2560 p_hxge_dma_common_t *dma_rbr_cntl_p, p_hxge_dma_common_t *dma_rcr_cntl_p, 2561 p_hxge_dma_common_t *dma_mbox_cntl_p, p_rx_rbr_ring_t *rbr_p, 2562 p_rx_rcr_ring_t *rcr_p, p_rx_mbox_t *rx_mbox_p) 2563 { 2564 p_rx_rbr_ring_t rbrp; 2565 p_rx_rcr_ring_t rcrp; 2566 p_rx_mbox_t mboxp; 2567 p_hxge_dma_common_t cntl_dmap; 2568 p_hxge_dma_common_t dmap; 2569 p_rx_msg_t *rx_msg_ring; 2570 p_rx_msg_t rx_msg_p; 2571 rdc_rbr_cfg_a_t *rcfga_p; 2572 rdc_rbr_cfg_b_t *rcfgb_p; 2573 rdc_rcr_cfg_a_t *cfga_p; 2574 rdc_rcr_cfg_b_t *cfgb_p; 2575 rdc_rx_cfg1_t *cfig1_p; 2576 rdc_rx_cfg2_t *cfig2_p; 2577 rdc_rbr_kick_t *kick_p; 2578 uint32_t dmaaddrp; 2579 uint32_t *rbr_vaddrp; 2580 uint32_t bkaddr; 2581 hxge_status_t status = HXGE_OK; 2582 int i; 2583 uint32_t hxge_port_rcr_size; 2584 2585 HXGE_DEBUG_MSG((hxgep, MEM2_CTL, 2586 "==> hxge_map_rxdma_channel_cfg_ring")); 2587 2588 cntl_dmap = *dma_rbr_cntl_p; 2589 2590 /* 2591 * Map in the receive block ring 2592 */ 2593 rbrp = *rbr_p; 2594 dmap = (p_hxge_dma_common_t)&rbrp->rbr_desc; 2595 hxge_setup_dma_common(dmap, cntl_dmap, rbrp->rbb_max, 4); 2596 2597 /* 2598 * Zero out buffer block ring descriptors. 2599 */ 2600 bzero((caddr_t)dmap->kaddrp, dmap->alength); 2601 2602 rcfga_p = &(rbrp->rbr_cfga); 2603 rcfgb_p = &(rbrp->rbr_cfgb); 2604 kick_p = &(rbrp->rbr_kick); 2605 rcfga_p->value = 0; 2606 rcfgb_p->value = 0; 2607 kick_p->value = 0; 2608 rbrp->rbr_addr = dmap->dma_cookie.dmac_laddress; 2609 rcfga_p->value = (rbrp->rbr_addr & 2610 (RBR_CFIG_A_STDADDR_MASK | RBR_CFIG_A_STDADDR_BASE_MASK)); 2611 rcfga_p->value |= ((uint64_t)rbrp->rbb_max << RBR_CFIG_A_LEN_SHIFT); 2612 2613 /* XXXX: how to choose packet buffer sizes */ 2614 rcfgb_p->bits.bufsz0 = rbrp->pkt_buf_size0; 2615 rcfgb_p->bits.vld0 = 1; 2616 rcfgb_p->bits.bufsz1 = rbrp->pkt_buf_size1; 2617 rcfgb_p->bits.vld1 = 1; 2618 rcfgb_p->bits.bufsz2 = rbrp->pkt_buf_size2; 2619 rcfgb_p->bits.vld2 = 1; 2620 rcfgb_p->bits.bksize = hxgep->rx_bksize_code; 2621 2622 /* 2623 * For each buffer block, enter receive block address to the ring. 2624 */ 2625 rbr_vaddrp = (uint32_t *)dmap->kaddrp; 2626 rbrp->rbr_desc_vp = (uint32_t *)dmap->kaddrp; 2627 HXGE_DEBUG_MSG((hxgep, MEM2_CTL, 2628 "==> hxge_map_rxdma_channel_cfg_ring: channel %d " 2629 "rbr_vaddrp $%p", dma_channel, rbr_vaddrp)); 2630 2631 rx_msg_ring = rbrp->rx_msg_ring; 2632 for (i = 0; i < rbrp->tnblocks; i++) { 2633 rx_msg_p = rx_msg_ring[i]; 2634 rx_msg_p->hxgep = hxgep; 2635 rx_msg_p->rx_rbr_p = rbrp; 2636 bkaddr = (uint32_t) 2637 ((rx_msg_p->buf_dma.dma_cookie.dmac_laddress >> 2638 RBR_BKADDR_SHIFT)); 2639 rx_msg_p->free = B_FALSE; 2640 rx_msg_p->max_usage_cnt = 0xbaddcafe; 2641 2642 *rbr_vaddrp++ = bkaddr; 2643 } 2644 2645 kick_p->bits.bkadd = rbrp->rbb_max; 2646 rbrp->rbr_wr_index = (rbrp->rbb_max - 1); 2647 2648 rbrp->rbr_rd_index = 0; 2649 2650 rbrp->rbr_consumed = 0; 2651 rbrp->rbr_used = 0; 2652 rbrp->rbr_use_bcopy = B_TRUE; 2653 rbrp->rbr_bufsize_type = RCR_PKTBUFSZ_0; 2654 2655 /* 2656 * Do bcopy on packets greater than bcopy size once the lo threshold is 2657 * reached. This lo threshold should be less than the hi threshold. 2658 * 2659 * Do bcopy on every packet once the hi threshold is reached. 2660 */ 2661 if (hxge_rx_threshold_lo >= hxge_rx_threshold_hi) { 2662 /* default it to use hi */ 2663 hxge_rx_threshold_lo = hxge_rx_threshold_hi; 2664 } 2665 if (hxge_rx_buf_size_type > HXGE_RBR_TYPE2) { 2666 hxge_rx_buf_size_type = HXGE_RBR_TYPE2; 2667 } 2668 rbrp->rbr_bufsize_type = hxge_rx_buf_size_type; 2669 2670 switch (hxge_rx_threshold_hi) { 2671 default: 2672 case HXGE_RX_COPY_NONE: 2673 /* Do not do bcopy at all */ 2674 rbrp->rbr_use_bcopy = B_FALSE; 2675 rbrp->rbr_threshold_hi = rbrp->rbb_max; 2676 break; 2677 2678 case HXGE_RX_COPY_1: 2679 case HXGE_RX_COPY_2: 2680 case HXGE_RX_COPY_3: 2681 case HXGE_RX_COPY_4: 2682 case HXGE_RX_COPY_5: 2683 case HXGE_RX_COPY_6: 2684 case HXGE_RX_COPY_7: 2685 rbrp->rbr_threshold_hi = 2686 rbrp->rbb_max * (hxge_rx_threshold_hi) / 2687 HXGE_RX_BCOPY_SCALE; 2688 break; 2689 2690 case HXGE_RX_COPY_ALL: 2691 rbrp->rbr_threshold_hi = 0; 2692 break; 2693 } 2694 2695 switch (hxge_rx_threshold_lo) { 2696 default: 2697 case HXGE_RX_COPY_NONE: 2698 /* Do not do bcopy at all */ 2699 if (rbrp->rbr_use_bcopy) { 2700 rbrp->rbr_use_bcopy = B_FALSE; 2701 } 2702 rbrp->rbr_threshold_lo = rbrp->rbb_max; 2703 break; 2704 2705 case HXGE_RX_COPY_1: 2706 case HXGE_RX_COPY_2: 2707 case HXGE_RX_COPY_3: 2708 case HXGE_RX_COPY_4: 2709 case HXGE_RX_COPY_5: 2710 case HXGE_RX_COPY_6: 2711 case HXGE_RX_COPY_7: 2712 rbrp->rbr_threshold_lo = 2713 rbrp->rbb_max * (hxge_rx_threshold_lo) / 2714 HXGE_RX_BCOPY_SCALE; 2715 break; 2716 2717 case HXGE_RX_COPY_ALL: 2718 rbrp->rbr_threshold_lo = 0; 2719 break; 2720 } 2721 2722 HXGE_DEBUG_MSG((hxgep, RX_CTL, 2723 "hxge_map_rxdma_channel_cfg_ring: channel %d rbb_max %d " 2724 "rbrp->rbr_bufsize_type %d rbb_threshold_hi %d " 2725 "rbb_threshold_lo %d", 2726 dma_channel, rbrp->rbb_max, rbrp->rbr_bufsize_type, 2727 rbrp->rbr_threshold_hi, rbrp->rbr_threshold_lo)); 2728 2729 /* Map in the receive completion ring */ 2730 rcrp = (p_rx_rcr_ring_t)KMEM_ZALLOC(sizeof (rx_rcr_ring_t), KM_SLEEP); 2731 MUTEX_INIT(&rcrp->lock, NULL, MUTEX_DRIVER, 2732 (void *) hxgep->interrupt_cookie); 2733 rcrp->rdc = dma_channel; 2734 rcrp->hxgep = hxgep; 2735 2736 hxge_port_rcr_size = hxgep->hxge_port_rcr_size; 2737 rcrp->comp_size = hxge_port_rcr_size; 2738 rcrp->comp_wrap_mask = hxge_port_rcr_size - 1; 2739 2740 cntl_dmap = *dma_rcr_cntl_p; 2741 2742 dmap = (p_hxge_dma_common_t)&rcrp->rcr_desc; 2743 hxge_setup_dma_common(dmap, cntl_dmap, rcrp->comp_size, 2744 sizeof (rcr_entry_t)); 2745 rcrp->comp_rd_index = 0; 2746 rcrp->comp_wt_index = 0; 2747 rcrp->rcr_desc_rd_head_p = rcrp->rcr_desc_first_p = 2748 (p_rcr_entry_t)DMA_COMMON_VPTR(rcrp->rcr_desc); 2749 #if defined(__i386) 2750 rcrp->rcr_desc_rd_head_pp = rcrp->rcr_desc_first_pp = 2751 (p_rcr_entry_t)(uint32_t)DMA_COMMON_IOADDR(rcrp->rcr_desc); 2752 #else 2753 rcrp->rcr_desc_rd_head_pp = rcrp->rcr_desc_first_pp = 2754 (p_rcr_entry_t)DMA_COMMON_IOADDR(rcrp->rcr_desc); 2755 #endif 2756 rcrp->rcr_desc_last_p = rcrp->rcr_desc_rd_head_p + 2757 (hxge_port_rcr_size - 1); 2758 rcrp->rcr_desc_last_pp = rcrp->rcr_desc_rd_head_pp + 2759 (hxge_port_rcr_size - 1); 2760 2761 rcrp->rcr_tail_begin = DMA_COMMON_IOADDR(rcrp->rcr_desc); 2762 rcrp->rcr_tail_begin = (rcrp->rcr_tail_begin & 0x7ffffULL) >> 3; 2763 2764 HXGE_DEBUG_MSG((hxgep, MEM2_CTL, 2765 "==> hxge_map_rxdma_channel_cfg_ring: channel %d " 2766 "rbr_vaddrp $%p rcr_desc_rd_head_p $%p " 2767 "rcr_desc_rd_head_pp $%p rcr_desc_rd_last_p $%p " 2768 "rcr_desc_rd_last_pp $%p ", 2769 dma_channel, rbr_vaddrp, rcrp->rcr_desc_rd_head_p, 2770 rcrp->rcr_desc_rd_head_pp, rcrp->rcr_desc_last_p, 2771 rcrp->rcr_desc_last_pp)); 2772 2773 /* 2774 * Zero out buffer block ring descriptors. 2775 */ 2776 bzero((caddr_t)dmap->kaddrp, dmap->alength); 2777 rcrp->intr_timeout = hxgep->intr_timeout; 2778 rcrp->intr_threshold = hxgep->intr_threshold; 2779 rcrp->full_hdr_flag = B_FALSE; 2780 rcrp->sw_priv_hdr_len = 0; 2781 2782 cfga_p = &(rcrp->rcr_cfga); 2783 cfgb_p = &(rcrp->rcr_cfgb); 2784 cfga_p->value = 0; 2785 cfgb_p->value = 0; 2786 rcrp->rcr_addr = dmap->dma_cookie.dmac_laddress; 2787 2788 cfga_p->value = (rcrp->rcr_addr & 2789 (RCRCFIG_A_STADDR_MASK | RCRCFIG_A_STADDR_BASE_MASK)); 2790 2791 cfga_p->value |= ((uint64_t)rcrp->comp_size << RCRCFIG_A_LEN_SHIF); 2792 2793 /* 2794 * Timeout should be set based on the system clock divider. The 2795 * following timeout value of 1 assumes that the granularity (1000) is 2796 * 3 microseconds running at 300MHz. 2797 */ 2798 cfgb_p->bits.pthres = rcrp->intr_threshold; 2799 cfgb_p->bits.timeout = rcrp->intr_timeout; 2800 cfgb_p->bits.entout = 1; 2801 2802 /* Map in the mailbox */ 2803 cntl_dmap = *dma_mbox_cntl_p; 2804 mboxp = (p_rx_mbox_t)KMEM_ZALLOC(sizeof (rx_mbox_t), KM_SLEEP); 2805 dmap = (p_hxge_dma_common_t)&mboxp->rx_mbox; 2806 hxge_setup_dma_common(dmap, cntl_dmap, 1, sizeof (rxdma_mailbox_t)); 2807 cfig1_p = (rdc_rx_cfg1_t *)&mboxp->rx_cfg1; 2808 cfig2_p = (rdc_rx_cfg2_t *)&mboxp->rx_cfg2; 2809 cfig1_p->value = cfig2_p->value = 0; 2810 2811 mboxp->mbox_addr = dmap->dma_cookie.dmac_laddress; 2812 HXGE_DEBUG_MSG((hxgep, MEM2_CTL, 2813 "==> hxge_map_rxdma_channel_cfg_ring: " 2814 "channel %d cfg1 0x%016llx cfig2 0x%016llx cookie 0x%016llx", 2815 dma_channel, cfig1_p->value, cfig2_p->value, 2816 mboxp->mbox_addr)); 2817 2818 dmaaddrp = (uint32_t)((dmap->dma_cookie.dmac_laddress >> 32) & 0xfff); 2819 cfig1_p->bits.mbaddr_h = dmaaddrp; 2820 2821 dmaaddrp = (uint32_t)(dmap->dma_cookie.dmac_laddress & 0xffffffff); 2822 dmaaddrp = (uint32_t)(dmap->dma_cookie.dmac_laddress & 2823 RXDMA_CFIG2_MBADDR_L_MASK); 2824 2825 cfig2_p->bits.mbaddr_l = (dmaaddrp >> RXDMA_CFIG2_MBADDR_L_SHIFT); 2826 2827 HXGE_DEBUG_MSG((hxgep, MEM2_CTL, 2828 "==> hxge_map_rxdma_channel_cfg_ring: channel %d damaddrp $%p " 2829 "cfg1 0x%016llx cfig2 0x%016llx", 2830 dma_channel, dmaaddrp, cfig1_p->value, cfig2_p->value)); 2831 2832 cfig2_p->bits.full_hdr = rcrp->full_hdr_flag; 2833 cfig2_p->bits.offset = rcrp->sw_priv_hdr_len; 2834 2835 rbrp->rx_rcr_p = rcrp; 2836 rcrp->rx_rbr_p = rbrp; 2837 *rcr_p = rcrp; 2838 *rx_mbox_p = mboxp; 2839 2840 HXGE_DEBUG_MSG((hxgep, MEM2_CTL, 2841 "<== hxge_map_rxdma_channel_cfg_ring status 0x%08x", status)); 2842 return (status); 2843 } 2844 2845 /*ARGSUSED*/ 2846 static void 2847 hxge_unmap_rxdma_channel_cfg_ring(p_hxge_t hxgep, 2848 p_rx_rcr_ring_t rcr_p, p_rx_mbox_t rx_mbox_p) 2849 { 2850 HXGE_DEBUG_MSG((hxgep, MEM2_CTL, 2851 "==> hxge_unmap_rxdma_channel_cfg_ring: channel %d", rcr_p->rdc)); 2852 2853 MUTEX_DESTROY(&rcr_p->lock); 2854 KMEM_FREE(rcr_p, sizeof (rx_rcr_ring_t)); 2855 KMEM_FREE(rx_mbox_p, sizeof (rx_mbox_t)); 2856 2857 HXGE_DEBUG_MSG((hxgep, MEM2_CTL, 2858 "<== hxge_unmap_rxdma_channel_cfg_ring")); 2859 } 2860 2861 static hxge_status_t 2862 hxge_map_rxdma_channel_buf_ring(p_hxge_t hxgep, uint16_t channel, 2863 p_hxge_dma_common_t *dma_buf_p, 2864 p_rx_rbr_ring_t *rbr_p, uint32_t num_chunks) 2865 { 2866 p_rx_rbr_ring_t rbrp; 2867 p_hxge_dma_common_t dma_bufp, tmp_bufp; 2868 p_rx_msg_t *rx_msg_ring; 2869 p_rx_msg_t rx_msg_p; 2870 p_mblk_t mblk_p; 2871 2872 rxring_info_t *ring_info; 2873 hxge_status_t status = HXGE_OK; 2874 int i, j, index; 2875 uint32_t size, bsize, nblocks, nmsgs; 2876 2877 HXGE_DEBUG_MSG((hxgep, MEM2_CTL, 2878 "==> hxge_map_rxdma_channel_buf_ring: channel %d", channel)); 2879 2880 dma_bufp = tmp_bufp = *dma_buf_p; 2881 HXGE_DEBUG_MSG((hxgep, MEM2_CTL, 2882 " hxge_map_rxdma_channel_buf_ring: channel %d to map %d " 2883 "chunks bufp 0x%016llx", channel, num_chunks, dma_bufp)); 2884 2885 nmsgs = 0; 2886 for (i = 0; i < num_chunks; i++, tmp_bufp++) { 2887 HXGE_DEBUG_MSG((hxgep, MEM2_CTL, 2888 "==> hxge_map_rxdma_channel_buf_ring: channel %d " 2889 "bufp 0x%016llx nblocks %d nmsgs %d", 2890 channel, tmp_bufp, tmp_bufp->nblocks, nmsgs)); 2891 nmsgs += tmp_bufp->nblocks; 2892 } 2893 if (!nmsgs) { 2894 HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL, 2895 "<== hxge_map_rxdma_channel_buf_ring: channel %d " 2896 "no msg blocks", channel)); 2897 status = HXGE_ERROR; 2898 goto hxge_map_rxdma_channel_buf_ring_exit; 2899 } 2900 rbrp = (p_rx_rbr_ring_t)KMEM_ZALLOC(sizeof (rx_rbr_ring_t), KM_SLEEP); 2901 2902 size = nmsgs * sizeof (p_rx_msg_t); 2903 rx_msg_ring = KMEM_ZALLOC(size, KM_SLEEP); 2904 ring_info = (rxring_info_t *)KMEM_ZALLOC(sizeof (rxring_info_t), 2905 KM_SLEEP); 2906 2907 MUTEX_INIT(&rbrp->lock, NULL, MUTEX_DRIVER, 2908 (void *) hxgep->interrupt_cookie); 2909 MUTEX_INIT(&rbrp->post_lock, NULL, MUTEX_DRIVER, 2910 (void *) hxgep->interrupt_cookie); 2911 2912 rbrp->rdc = channel; 2913 rbrp->num_blocks = num_chunks; 2914 rbrp->tnblocks = nmsgs; 2915 rbrp->rbb_max = nmsgs; 2916 rbrp->rbr_max_size = nmsgs; 2917 rbrp->rbr_wrap_mask = (rbrp->rbb_max - 1); 2918 2919 /* 2920 * Buffer sizes: 256, 1K, and 2K. 2921 * 2922 * Blk 0 size. 2923 */ 2924 rbrp->pkt_buf_size0 = RBR_BUFSZ0_256B; 2925 rbrp->pkt_buf_size0_bytes = RBR_BUFSZ0_256_BYTES; 2926 rbrp->hpi_pkt_buf_size0 = SIZE_256B; 2927 2928 /* 2929 * Blk 1 size. 2930 */ 2931 rbrp->pkt_buf_size1 = RBR_BUFSZ1_1K; 2932 rbrp->pkt_buf_size1_bytes = RBR_BUFSZ1_1K_BYTES; 2933 rbrp->hpi_pkt_buf_size1 = SIZE_1KB; 2934 2935 /* 2936 * Blk 2 size. 2937 */ 2938 rbrp->pkt_buf_size2 = RBR_BUFSZ2_2K; 2939 rbrp->pkt_buf_size2_bytes = RBR_BUFSZ2_2K_BYTES; 2940 rbrp->hpi_pkt_buf_size2 = SIZE_2KB; 2941 2942 rbrp->block_size = hxgep->rx_default_block_size; 2943 2944 HXGE_DEBUG_MSG((hxgep, MEM2_CTL, 2945 "==> hxge_map_rxdma_channel_buf_ring: channel %d " 2946 "actual rbr max %d rbb_max %d nmsgs %d " 2947 "rbrp->block_size %d default_block_size %d " 2948 "(config hxge_rbr_size %d hxge_rbr_spare_size %d)", 2949 channel, rbrp->rbr_max_size, rbrp->rbb_max, nmsgs, 2950 rbrp->block_size, hxgep->rx_default_block_size, 2951 hxge_rbr_size, hxge_rbr_spare_size)); 2952 2953 /* 2954 * Map in buffers from the buffer pool. 2955 * Note that num_blocks is the num_chunks. For Sparc, there is likely 2956 * only one chunk. For x86, there will be many chunks. 2957 * Loop over chunks. 2958 */ 2959 index = 0; 2960 for (i = 0; i < rbrp->num_blocks; i++, dma_bufp++) { 2961 bsize = dma_bufp->block_size; 2962 nblocks = dma_bufp->nblocks; 2963 #if defined(__i386) 2964 ring_info->buffer[i].dvma_addr = (uint32_t)dma_bufp->ioaddr_pp; 2965 #else 2966 ring_info->buffer[i].dvma_addr = (uint64_t)dma_bufp->ioaddr_pp; 2967 #endif 2968 ring_info->buffer[i].buf_index = i; 2969 ring_info->buffer[i].buf_size = dma_bufp->alength; 2970 ring_info->buffer[i].start_index = index; 2971 #if defined(__i386) 2972 ring_info->buffer[i].kaddr = (uint32_t)dma_bufp->kaddrp; 2973 #else 2974 ring_info->buffer[i].kaddr = (uint64_t)dma_bufp->kaddrp; 2975 #endif 2976 2977 HXGE_DEBUG_MSG((hxgep, MEM2_CTL, 2978 " hxge_map_rxdma_channel_buf_ring: map channel %d " 2979 "chunk %d nblocks %d chunk_size %x block_size 0x%x " 2980 "dma_bufp $%p dvma_addr $%p", channel, i, 2981 dma_bufp->nblocks, 2982 ring_info->buffer[i].buf_size, bsize, dma_bufp, 2983 ring_info->buffer[i].dvma_addr)); 2984 2985 /* loop over blocks within a chunk */ 2986 for (j = 0; j < nblocks; j++) { 2987 if ((rx_msg_p = hxge_allocb(bsize, BPRI_LO, 2988 dma_bufp)) == NULL) { 2989 HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL, 2990 "allocb failed (index %d i %d j %d)", 2991 index, i, j)); 2992 goto hxge_map_rxdma_channel_buf_ring_fail1; 2993 } 2994 rx_msg_ring[index] = rx_msg_p; 2995 rx_msg_p->block_index = index; 2996 rx_msg_p->shifted_addr = (uint32_t) 2997 ((rx_msg_p->buf_dma.dma_cookie.dmac_laddress >> 2998 RBR_BKADDR_SHIFT)); 2999 /* 3000 * Too much output 3001 * HXGE_DEBUG_MSG((hxgep, MEM2_CTL, 3002 * "index %d j %d rx_msg_p $%p mblk %p", 3003 * index, j, rx_msg_p, rx_msg_p->rx_mblk_p)); 3004 */ 3005 mblk_p = rx_msg_p->rx_mblk_p; 3006 mblk_p->b_wptr = mblk_p->b_rptr + bsize; 3007 3008 rbrp->rbr_ref_cnt++; 3009 index++; 3010 rx_msg_p->buf_dma.dma_channel = channel; 3011 } 3012 } 3013 if (i < rbrp->num_blocks) { 3014 goto hxge_map_rxdma_channel_buf_ring_fail1; 3015 } 3016 HXGE_DEBUG_MSG((hxgep, MEM2_CTL, 3017 "hxge_map_rxdma_channel_buf_ring: done buf init " 3018 "channel %d msg block entries %d", channel, index)); 3019 ring_info->block_size_mask = bsize - 1; 3020 rbrp->rx_msg_ring = rx_msg_ring; 3021 rbrp->dma_bufp = dma_buf_p; 3022 rbrp->ring_info = ring_info; 3023 3024 status = hxge_rxbuf_index_info_init(hxgep, rbrp); 3025 HXGE_DEBUG_MSG((hxgep, MEM2_CTL, " hxge_map_rxdma_channel_buf_ring: " 3026 "channel %d done buf info init", channel)); 3027 3028 /* 3029 * Finally, permit hxge_freeb() to call hxge_post_page(). 3030 */ 3031 rbrp->rbr_state = RBR_POSTING; 3032 3033 *rbr_p = rbrp; 3034 3035 goto hxge_map_rxdma_channel_buf_ring_exit; 3036 3037 hxge_map_rxdma_channel_buf_ring_fail1: 3038 HXGE_DEBUG_MSG((hxgep, MEM2_CTL, 3039 " hxge_map_rxdma_channel_buf_ring: failed channel (0x%x)", 3040 channel, status)); 3041 3042 index--; 3043 for (; index >= 0; index--) { 3044 rx_msg_p = rx_msg_ring[index]; 3045 if (rx_msg_p != NULL) { 3046 freeb(rx_msg_p->rx_mblk_p); 3047 rx_msg_ring[index] = NULL; 3048 } 3049 } 3050 3051 hxge_map_rxdma_channel_buf_ring_fail: 3052 MUTEX_DESTROY(&rbrp->post_lock); 3053 MUTEX_DESTROY(&rbrp->lock); 3054 KMEM_FREE(ring_info, sizeof (rxring_info_t)); 3055 KMEM_FREE(rx_msg_ring, size); 3056 KMEM_FREE(rbrp, sizeof (rx_rbr_ring_t)); 3057 3058 status = HXGE_ERROR; 3059 3060 hxge_map_rxdma_channel_buf_ring_exit: 3061 HXGE_DEBUG_MSG((hxgep, MEM2_CTL, 3062 "<== hxge_map_rxdma_channel_buf_ring status 0x%08x", status)); 3063 3064 return (status); 3065 } 3066 3067 /*ARGSUSED*/ 3068 static void 3069 hxge_unmap_rxdma_channel_buf_ring(p_hxge_t hxgep, 3070 p_rx_rbr_ring_t rbr_p) 3071 { 3072 p_rx_msg_t *rx_msg_ring; 3073 p_rx_msg_t rx_msg_p; 3074 rxring_info_t *ring_info; 3075 int i; 3076 uint32_t size; 3077 3078 HXGE_DEBUG_MSG((hxgep, MEM2_CTL, 3079 "==> hxge_unmap_rxdma_channel_buf_ring")); 3080 if (rbr_p == NULL) { 3081 HXGE_DEBUG_MSG((hxgep, RX_CTL, 3082 "<== hxge_unmap_rxdma_channel_buf_ring: NULL rbrp")); 3083 return; 3084 } 3085 HXGE_DEBUG_MSG((hxgep, MEM2_CTL, 3086 "==> hxge_unmap_rxdma_channel_buf_ring: channel %d", rbr_p->rdc)); 3087 3088 rx_msg_ring = rbr_p->rx_msg_ring; 3089 ring_info = rbr_p->ring_info; 3090 3091 if (rx_msg_ring == NULL || ring_info == NULL) { 3092 HXGE_DEBUG_MSG((hxgep, MEM2_CTL, 3093 "<== hxge_unmap_rxdma_channel_buf_ring: " 3094 "rx_msg_ring $%p ring_info $%p", rx_msg_p, ring_info)); 3095 return; 3096 } 3097 3098 size = rbr_p->tnblocks * sizeof (p_rx_msg_t); 3099 HXGE_DEBUG_MSG((hxgep, MEM2_CTL, 3100 " hxge_unmap_rxdma_channel_buf_ring: channel %d chunks %d " 3101 "tnblocks %d (max %d) size ptrs %d ", rbr_p->rdc, rbr_p->num_blocks, 3102 rbr_p->tnblocks, rbr_p->rbr_max_size, size)); 3103 3104 for (i = 0; i < rbr_p->tnblocks; i++) { 3105 rx_msg_p = rx_msg_ring[i]; 3106 HXGE_DEBUG_MSG((hxgep, MEM2_CTL, 3107 " hxge_unmap_rxdma_channel_buf_ring: " 3108 "rx_msg_p $%p", rx_msg_p)); 3109 if (rx_msg_p != NULL) { 3110 freeb(rx_msg_p->rx_mblk_p); 3111 rx_msg_ring[i] = NULL; 3112 } 3113 } 3114 3115 /* 3116 * We no longer may use the mutex <post_lock>. By setting 3117 * <rbr_state> to anything but POSTING, we prevent 3118 * hxge_post_page() from accessing a dead mutex. 3119 */ 3120 rbr_p->rbr_state = RBR_UNMAPPING; 3121 MUTEX_DESTROY(&rbr_p->post_lock); 3122 3123 MUTEX_DESTROY(&rbr_p->lock); 3124 KMEM_FREE(ring_info, sizeof (rxring_info_t)); 3125 KMEM_FREE(rx_msg_ring, size); 3126 3127 if (rbr_p->rbr_ref_cnt == 0) { 3128 /* This is the normal state of affairs. */ 3129 KMEM_FREE(rbr_p, sizeof (*rbr_p)); 3130 } else { 3131 /* 3132 * Some of our buffers are still being used. 3133 * Therefore, tell hxge_freeb() this ring is 3134 * unmapped, so it may free <rbr_p> for us. 3135 */ 3136 rbr_p->rbr_state = RBR_UNMAPPED; 3137 HXGE_DEBUG_MSG((hxgep, MEM2_CTL, 3138 "unmap_rxdma_buf_ring: %d %s outstanding.", 3139 rbr_p->rbr_ref_cnt, 3140 rbr_p->rbr_ref_cnt == 1 ? "msg" : "msgs")); 3141 } 3142 3143 HXGE_DEBUG_MSG((hxgep, MEM2_CTL, 3144 "<== hxge_unmap_rxdma_channel_buf_ring")); 3145 } 3146 3147 static hxge_status_t 3148 hxge_rxdma_hw_start_common(p_hxge_t hxgep) 3149 { 3150 hxge_status_t status = HXGE_OK; 3151 3152 HXGE_DEBUG_MSG((hxgep, MEM2_CTL, "==> hxge_rxdma_hw_start_common")); 3153 3154 /* 3155 * Load the sharable parameters by writing to the function zero control 3156 * registers. These FZC registers should be initialized only once for 3157 * the entire chip. 3158 */ 3159 (void) hxge_init_fzc_rx_common(hxgep); 3160 3161 HXGE_DEBUG_MSG((hxgep, MEM2_CTL, "==> hxge_rxdma_hw_start_common")); 3162 3163 return (status); 3164 } 3165 3166 static hxge_status_t 3167 hxge_rxdma_hw_start(p_hxge_t hxgep) 3168 { 3169 int i, ndmas; 3170 uint16_t channel; 3171 p_rx_rbr_rings_t rx_rbr_rings; 3172 p_rx_rbr_ring_t *rbr_rings; 3173 p_rx_rcr_rings_t rx_rcr_rings; 3174 p_rx_rcr_ring_t *rcr_rings; 3175 p_rx_mbox_areas_t rx_mbox_areas_p; 3176 p_rx_mbox_t *rx_mbox_p; 3177 hxge_status_t status = HXGE_OK; 3178 3179 HXGE_DEBUG_MSG((hxgep, MEM2_CTL, "==> hxge_rxdma_hw_start")); 3180 3181 rx_rbr_rings = hxgep->rx_rbr_rings; 3182 rx_rcr_rings = hxgep->rx_rcr_rings; 3183 if (rx_rbr_rings == NULL || rx_rcr_rings == NULL) { 3184 HXGE_DEBUG_MSG((hxgep, RX_CTL, 3185 "<== hxge_rxdma_hw_start: NULL ring pointers")); 3186 return (HXGE_ERROR); 3187 } 3188 3189 ndmas = rx_rbr_rings->ndmas; 3190 if (ndmas == 0) { 3191 HXGE_DEBUG_MSG((hxgep, RX_CTL, 3192 "<== hxge_rxdma_hw_start: no dma channel allocated")); 3193 return (HXGE_ERROR); 3194 } 3195 HXGE_DEBUG_MSG((hxgep, MEM2_CTL, 3196 "==> hxge_rxdma_hw_start (ndmas %d)", ndmas)); 3197 3198 /* 3199 * Scrub the RDC Rx DMA Prefetch Buffer Command. 3200 */ 3201 for (i = 0; i < 128; i++) { 3202 HXGE_REG_WR64(hxgep->hpi_handle, RDC_PREF_CMD, i); 3203 } 3204 3205 /* 3206 * Scrub Rx DMA Shadow Tail Command. 3207 */ 3208 for (i = 0; i < 64; i++) { 3209 HXGE_REG_WR64(hxgep->hpi_handle, RDC_SHADOW_CMD, i); 3210 } 3211 3212 /* 3213 * Scrub Rx DMA Control Fifo Command. 3214 */ 3215 for (i = 0; i < 512; i++) { 3216 HXGE_REG_WR64(hxgep->hpi_handle, RDC_CTRL_FIFO_CMD, i); 3217 } 3218 3219 /* 3220 * Scrub Rx DMA Data Fifo Command. 3221 */ 3222 for (i = 0; i < 1536; i++) { 3223 HXGE_REG_WR64(hxgep->hpi_handle, RDC_DATA_FIFO_CMD, i); 3224 } 3225 3226 /* 3227 * Reset the FIFO Error Stat. 3228 */ 3229 HXGE_REG_WR64(hxgep->hpi_handle, RDC_FIFO_ERR_STAT, 0xFF); 3230 3231 /* Set the error mask to receive interrupts */ 3232 HXGE_REG_WR64(hxgep->hpi_handle, RDC_FIFO_ERR_INT_MASK, 0x0); 3233 3234 rbr_rings = rx_rbr_rings->rbr_rings; 3235 rcr_rings = rx_rcr_rings->rcr_rings; 3236 rx_mbox_areas_p = hxgep->rx_mbox_areas_p; 3237 if (rx_mbox_areas_p) { 3238 rx_mbox_p = rx_mbox_areas_p->rxmbox_areas; 3239 } 3240 3241 for (i = 0; i < ndmas; i++) { 3242 channel = rbr_rings[i]->rdc; 3243 HXGE_DEBUG_MSG((hxgep, MEM2_CTL, 3244 "==> hxge_rxdma_hw_start (ndmas %d) channel %d", 3245 ndmas, channel)); 3246 status = hxge_rxdma_start_channel(hxgep, channel, 3247 (p_rx_rbr_ring_t)rbr_rings[i], 3248 (p_rx_rcr_ring_t)rcr_rings[i], 3249 (p_rx_mbox_t)rx_mbox_p[i], rbr_rings[i]->rbb_max); 3250 if (status != HXGE_OK) { 3251 goto hxge_rxdma_hw_start_fail1; 3252 } 3253 } 3254 3255 HXGE_DEBUG_MSG((hxgep, MEM2_CTL, "==> hxge_rxdma_hw_start: " 3256 "rx_rbr_rings 0x%016llx rings 0x%016llx", 3257 rx_rbr_rings, rx_rcr_rings)); 3258 goto hxge_rxdma_hw_start_exit; 3259 3260 hxge_rxdma_hw_start_fail1: 3261 HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL, 3262 "==> hxge_rxdma_hw_start: disable " 3263 "(status 0x%x channel %d i %d)", status, channel, i)); 3264 for (; i >= 0; i--) { 3265 channel = rbr_rings[i]->rdc; 3266 (void) hxge_rxdma_stop_channel(hxgep, channel); 3267 } 3268 3269 hxge_rxdma_hw_start_exit: 3270 HXGE_DEBUG_MSG((hxgep, MEM2_CTL, 3271 "==> hxge_rxdma_hw_start: (status 0x%x)", status)); 3272 return (status); 3273 } 3274 3275 static void 3276 hxge_rxdma_hw_stop(p_hxge_t hxgep) 3277 { 3278 int i, ndmas; 3279 uint16_t channel; 3280 p_rx_rbr_rings_t rx_rbr_rings; 3281 p_rx_rbr_ring_t *rbr_rings; 3282 p_rx_rcr_rings_t rx_rcr_rings; 3283 3284 HXGE_DEBUG_MSG((hxgep, MEM2_CTL, "==> hxge_rxdma_hw_stop")); 3285 3286 rx_rbr_rings = hxgep->rx_rbr_rings; 3287 rx_rcr_rings = hxgep->rx_rcr_rings; 3288 3289 if (rx_rbr_rings == NULL || rx_rcr_rings == NULL) { 3290 HXGE_DEBUG_MSG((hxgep, RX_CTL, 3291 "<== hxge_rxdma_hw_stop: NULL ring pointers")); 3292 return; 3293 } 3294 3295 ndmas = rx_rbr_rings->ndmas; 3296 if (!ndmas) { 3297 HXGE_DEBUG_MSG((hxgep, RX_CTL, 3298 "<== hxge_rxdma_hw_stop: no dma channel allocated")); 3299 return; 3300 } 3301 3302 HXGE_DEBUG_MSG((hxgep, MEM2_CTL, 3303 "==> hxge_rxdma_hw_stop (ndmas %d)", ndmas)); 3304 3305 rbr_rings = rx_rbr_rings->rbr_rings; 3306 for (i = 0; i < ndmas; i++) { 3307 channel = rbr_rings[i]->rdc; 3308 HXGE_DEBUG_MSG((hxgep, MEM2_CTL, 3309 "==> hxge_rxdma_hw_stop (ndmas %d) channel %d", 3310 ndmas, channel)); 3311 (void) hxge_rxdma_stop_channel(hxgep, channel); 3312 } 3313 3314 HXGE_DEBUG_MSG((hxgep, MEM2_CTL, "==> hxge_rxdma_hw_stop: " 3315 "rx_rbr_rings 0x%016llx rings 0x%016llx", 3316 rx_rbr_rings, rx_rcr_rings)); 3317 3318 HXGE_DEBUG_MSG((hxgep, MEM2_CTL, "<== hxge_rxdma_hw_stop")); 3319 } 3320 3321 static hxge_status_t 3322 hxge_rxdma_start_channel(p_hxge_t hxgep, uint16_t channel, 3323 p_rx_rbr_ring_t rbr_p, p_rx_rcr_ring_t rcr_p, p_rx_mbox_t mbox_p, 3324 int n_init_kick) 3325 { 3326 hpi_handle_t handle; 3327 hpi_status_t rs = HPI_SUCCESS; 3328 rdc_stat_t cs; 3329 rdc_int_mask_t ent_mask; 3330 hxge_status_t status = HXGE_OK; 3331 3332 HXGE_DEBUG_MSG((hxgep, MEM2_CTL, "==> hxge_rxdma_start_channel")); 3333 3334 handle = HXGE_DEV_HPI_HANDLE(hxgep); 3335 3336 HXGE_DEBUG_MSG((hxgep, MEM2_CTL, "hxge_rxdma_start_channel: " 3337 "hpi handle addr $%p acc $%p", 3338 hxgep->hpi_handle.regp, hxgep->hpi_handle.regh)); 3339 3340 /* Reset RXDMA channel */ 3341 rs = hpi_rxdma_cfg_rdc_reset(handle, channel); 3342 if (rs != HPI_SUCCESS) { 3343 HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL, 3344 "==> hxge_rxdma_start_channel: " 3345 "reset rxdma failed (0x%08x channel %d)", 3346 status, channel)); 3347 return (HXGE_ERROR | rs); 3348 } 3349 HXGE_DEBUG_MSG((hxgep, MEM2_CTL, 3350 "==> hxge_rxdma_start_channel: reset done: channel %d", channel)); 3351 3352 /* 3353 * Initialize the RXDMA channel specific FZC control configurations. 3354 * These FZC registers are pertaining to each RX channel (logical 3355 * pages). 3356 */ 3357 status = hxge_init_fzc_rxdma_channel(hxgep, 3358 channel, rbr_p, rcr_p, mbox_p); 3359 if (status != HXGE_OK) { 3360 HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL, 3361 "==> hxge_rxdma_start_channel: " 3362 "init fzc rxdma failed (0x%08x channel %d)", 3363 status, channel)); 3364 return (status); 3365 } 3366 HXGE_DEBUG_MSG((hxgep, MEM2_CTL, 3367 "==> hxge_rxdma_start_channel: fzc done")); 3368 3369 /* 3370 * Zero out the shadow and prefetch ram. 3371 */ 3372 HXGE_DEBUG_MSG((hxgep, MEM2_CTL, 3373 "==> hxge_rxdma_start_channel: ram done")); 3374 3375 /* Set up the interrupt event masks. */ 3376 ent_mask.value = 0; 3377 rs = hpi_rxdma_event_mask(handle, OP_SET, channel, &ent_mask); 3378 if (rs != HPI_SUCCESS) { 3379 HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL, 3380 "==> hxge_rxdma_start_channel: " 3381 "init rxdma event masks failed (0x%08x channel %d)", 3382 status, channel)); 3383 return (HXGE_ERROR | rs); 3384 } 3385 HXGE_DEBUG_MSG((hxgep, MEM2_CTL, "==> hxge_rxdma_start_channel: " 3386 "event done: channel %d (mask 0x%016llx)", 3387 channel, ent_mask.value)); 3388 3389 /* 3390 * Load RXDMA descriptors, buffers, mailbox, initialise the receive DMA 3391 * channels and enable each DMA channel. 3392 */ 3393 status = hxge_enable_rxdma_channel(hxgep, 3394 channel, rbr_p, rcr_p, mbox_p, n_init_kick); 3395 if (status != HXGE_OK) { 3396 HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL, 3397 " hxge_rxdma_start_channel: " 3398 " init enable rxdma failed (0x%08x channel %d)", 3399 status, channel)); 3400 return (status); 3401 } 3402 3403 HXGE_DEBUG_MSG((hxgep, MEM2_CTL, "==> hxge_rxdma_start_channel: " 3404 "control done - channel %d cs 0x%016llx", channel, cs.value)); 3405 3406 /* 3407 * Initialize the receive DMA control and status register 3408 * Note that rdc_stat HAS to be set after RBR and RCR rings are set 3409 */ 3410 cs.value = 0; 3411 cs.bits.mex = 1; 3412 cs.bits.rcr_thres = 1; 3413 cs.bits.rcr_to = 1; 3414 cs.bits.rbr_empty = 1; 3415 status = hxge_init_rxdma_channel_cntl_stat(hxgep, channel, &cs); 3416 HXGE_DEBUG_MSG((hxgep, MEM2_CTL, "==> hxge_rxdma_start_channel: " 3417 "channel %d rx_dma_cntl_stat 0x%0016llx", channel, cs.value)); 3418 if (status != HXGE_OK) { 3419 HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL, 3420 "==> hxge_rxdma_start_channel: " 3421 "init rxdma control register failed (0x%08x channel %d", 3422 status, channel)); 3423 return (status); 3424 } 3425 3426 HXGE_DEBUG_MSG((hxgep, MEM2_CTL, "==> hxge_rxdma_start_channel: " 3427 "control done - channel %d cs 0x%016llx", channel, cs.value)); 3428 HXGE_DEBUG_MSG((hxgep, MEM2_CTL, 3429 "==> hxge_rxdma_start_channel: enable done")); 3430 HXGE_DEBUG_MSG((hxgep, MEM2_CTL, "<== hxge_rxdma_start_channel")); 3431 return (HXGE_OK); 3432 } 3433 3434 static hxge_status_t 3435 hxge_rxdma_stop_channel(p_hxge_t hxgep, uint16_t channel) 3436 { 3437 hpi_handle_t handle; 3438 hpi_status_t rs = HPI_SUCCESS; 3439 rdc_stat_t cs; 3440 rdc_int_mask_t ent_mask; 3441 hxge_status_t status = HXGE_OK; 3442 3443 HXGE_DEBUG_MSG((hxgep, RX_CTL, "==> hxge_rxdma_stop_channel")); 3444 3445 handle = HXGE_DEV_HPI_HANDLE(hxgep); 3446 3447 HXGE_DEBUG_MSG((hxgep, RX_CTL, "hxge_rxdma_stop_channel: " 3448 "hpi handle addr $%p acc $%p", 3449 hxgep->hpi_handle.regp, hxgep->hpi_handle.regh)); 3450 3451 /* Reset RXDMA channel */ 3452 rs = hpi_rxdma_cfg_rdc_reset(handle, channel); 3453 if (rs != HPI_SUCCESS) { 3454 HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL, 3455 " hxge_rxdma_stop_channel: " 3456 " reset rxdma failed (0x%08x channel %d)", 3457 rs, channel)); 3458 return (HXGE_ERROR | rs); 3459 } 3460 HXGE_DEBUG_MSG((hxgep, RX_CTL, 3461 "==> hxge_rxdma_stop_channel: reset done")); 3462 3463 /* Set up the interrupt event masks. */ 3464 ent_mask.value = RDC_INT_MASK_ALL; 3465 rs = hpi_rxdma_event_mask(handle, OP_SET, channel, &ent_mask); 3466 if (rs != HPI_SUCCESS) { 3467 HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL, 3468 "==> hxge_rxdma_stop_channel: " 3469 "set rxdma event masks failed (0x%08x channel %d)", 3470 rs, channel)); 3471 return (HXGE_ERROR | rs); 3472 } 3473 HXGE_DEBUG_MSG((hxgep, RX_CTL, 3474 "==> hxge_rxdma_stop_channel: event done")); 3475 3476 /* Initialize the receive DMA control and status register */ 3477 cs.value = 0; 3478 status = hxge_init_rxdma_channel_cntl_stat(hxgep, channel, &cs); 3479 3480 HXGE_DEBUG_MSG((hxgep, RX_CTL, "==> hxge_rxdma_stop_channel: control " 3481 " to default (all 0s) 0x%08x", cs.value)); 3482 3483 if (status != HXGE_OK) { 3484 HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL, 3485 " hxge_rxdma_stop_channel: init rxdma" 3486 " control register failed (0x%08x channel %d", 3487 status, channel)); 3488 return (status); 3489 } 3490 3491 HXGE_DEBUG_MSG((hxgep, RX_CTL, 3492 "==> hxge_rxdma_stop_channel: control done")); 3493 3494 /* disable dma channel */ 3495 status = hxge_disable_rxdma_channel(hxgep, channel); 3496 3497 if (status != HXGE_OK) { 3498 HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL, 3499 " hxge_rxdma_stop_channel: " 3500 " init enable rxdma failed (0x%08x channel %d)", 3501 status, channel)); 3502 return (status); 3503 } 3504 3505 HXGE_DEBUG_MSG((hxgep, RX_CTL, 3506 "==> hxge_rxdma_stop_channel: disable done")); 3507 HXGE_DEBUG_MSG((hxgep, RX_CTL, "<== hxge_rxdma_stop_channel")); 3508 3509 return (HXGE_OK); 3510 } 3511 3512 hxge_status_t 3513 hxge_rxdma_handle_sys_errors(p_hxge_t hxgep) 3514 { 3515 hpi_handle_t handle; 3516 p_hxge_rdc_sys_stats_t statsp; 3517 rdc_fifo_err_stat_t stat; 3518 hxge_status_t status = HXGE_OK; 3519 3520 handle = hxgep->hpi_handle; 3521 statsp = (p_hxge_rdc_sys_stats_t)&hxgep->statsp->rdc_sys_stats; 3522 3523 /* Get the error status and clear the register */ 3524 HXGE_REG_RD64(handle, RDC_FIFO_ERR_STAT, &stat.value); 3525 HXGE_REG_WR64(handle, RDC_FIFO_ERR_STAT, stat.value); 3526 3527 if (stat.bits.rx_ctrl_fifo_sec) { 3528 statsp->ctrl_fifo_sec++; 3529 if (statsp->ctrl_fifo_sec == 1) 3530 HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL, 3531 "==> hxge_rxdma_handle_sys_errors: " 3532 "rx_ctrl_fifo_sec")); 3533 } 3534 3535 if (stat.bits.rx_ctrl_fifo_ded) { 3536 /* Global fatal error encountered */ 3537 statsp->ctrl_fifo_ded++; 3538 HXGE_FM_REPORT_ERROR(hxgep, NULL, 3539 HXGE_FM_EREPORT_RDMC_CTRL_FIFO_DED); 3540 HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL, 3541 "==> hxge_rxdma_handle_sys_errors: " 3542 "fatal error: rx_ctrl_fifo_ded error")); 3543 } 3544 3545 if (stat.bits.rx_data_fifo_sec) { 3546 statsp->data_fifo_sec++; 3547 if (statsp->data_fifo_sec == 1) 3548 HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL, 3549 "==> hxge_rxdma_handle_sys_errors: " 3550 "rx_data_fifo_sec")); 3551 } 3552 3553 if (stat.bits.rx_data_fifo_ded) { 3554 /* Global fatal error encountered */ 3555 statsp->data_fifo_ded++; 3556 HXGE_FM_REPORT_ERROR(hxgep, NULL, 3557 HXGE_FM_EREPORT_RDMC_DATA_FIFO_DED); 3558 HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL, 3559 "==> hxge_rxdma_handle_sys_errors: " 3560 "fatal error: rx_data_fifo_ded error")); 3561 } 3562 3563 if (stat.bits.rx_ctrl_fifo_ded || stat.bits.rx_data_fifo_ded) { 3564 HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL, 3565 " hxge_rxdma_handle_sys_errors: fatal error\n")); 3566 status = hxge_rx_port_fatal_err_recover(hxgep); 3567 if (status == HXGE_OK) { 3568 FM_SERVICE_RESTORED(hxgep); 3569 } 3570 } 3571 3572 return (HXGE_OK); 3573 } 3574 3575 static hxge_status_t 3576 hxge_rxdma_fatal_err_recover(p_hxge_t hxgep, uint16_t channel) 3577 { 3578 hpi_handle_t handle; 3579 hpi_status_t rs = HPI_SUCCESS; 3580 p_rx_rbr_ring_t rbrp; 3581 p_rx_rcr_ring_t rcrp; 3582 p_rx_mbox_t mboxp; 3583 rdc_int_mask_t ent_mask; 3584 p_hxge_dma_common_t dmap; 3585 p_rx_msg_t rx_msg_p; 3586 int i; 3587 uint32_t hxge_port_rcr_size; 3588 uint64_t tmp; 3589 int n_init_kick = 0; 3590 3591 HXGE_DEBUG_MSG((hxgep, RX_CTL, "==> hxge_rxdma_fatal_err_recover")); 3592 3593 /* 3594 * Stop the dma channel waits for the stop done. If the stop done bit 3595 * is not set, then create an error. 3596 */ 3597 3598 handle = HXGE_DEV_HPI_HANDLE(hxgep); 3599 3600 HXGE_DEBUG_MSG((hxgep, RX_CTL, "Rx DMA stop...")); 3601 3602 rbrp = (p_rx_rbr_ring_t)hxgep->rx_rbr_rings->rbr_rings[channel]; 3603 rcrp = (p_rx_rcr_ring_t)hxgep->rx_rcr_rings->rcr_rings[channel]; 3604 3605 MUTEX_ENTER(&rcrp->lock); 3606 MUTEX_ENTER(&rbrp->lock); 3607 3608 HXGE_DEBUG_MSG((hxgep, RX_CTL, "Disable RxDMA channel...")); 3609 3610 rs = hpi_rxdma_cfg_rdc_disable(handle, channel); 3611 if (rs != HPI_SUCCESS) { 3612 HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL, 3613 "hxge_disable_rxdma_channel:failed")); 3614 goto fail; 3615 } 3616 HXGE_DEBUG_MSG((hxgep, RX_CTL, "Disable RxDMA interrupt...")); 3617 3618 /* Disable interrupt */ 3619 ent_mask.value = RDC_INT_MASK_ALL; 3620 rs = hpi_rxdma_event_mask(handle, OP_SET, channel, &ent_mask); 3621 if (rs != HPI_SUCCESS) { 3622 HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL, 3623 "Set rxdma event masks failed (channel %d)", channel)); 3624 } 3625 HXGE_DEBUG_MSG((hxgep, RX_CTL, "RxDMA channel reset...")); 3626 3627 /* Reset RXDMA channel */ 3628 rs = hpi_rxdma_cfg_rdc_reset(handle, channel); 3629 if (rs != HPI_SUCCESS) { 3630 HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL, 3631 "Reset rxdma failed (channel %d)", channel)); 3632 goto fail; 3633 } 3634 hxge_port_rcr_size = hxgep->hxge_port_rcr_size; 3635 mboxp = (p_rx_mbox_t)hxgep->rx_mbox_areas_p->rxmbox_areas[channel]; 3636 3637 rbrp->rbr_wr_index = (rbrp->rbb_max - 1); 3638 rbrp->rbr_rd_index = 0; 3639 3640 rcrp->comp_rd_index = 0; 3641 rcrp->comp_wt_index = 0; 3642 rcrp->rcr_desc_rd_head_p = rcrp->rcr_desc_first_p = 3643 (p_rcr_entry_t)DMA_COMMON_VPTR(rcrp->rcr_desc); 3644 #if defined(__i386) 3645 rcrp->rcr_desc_rd_head_pp = rcrp->rcr_desc_first_pp = 3646 (p_rcr_entry_t)(uint32_t)DMA_COMMON_IOADDR(rcrp->rcr_desc); 3647 #else 3648 rcrp->rcr_desc_rd_head_pp = rcrp->rcr_desc_first_pp = 3649 (p_rcr_entry_t)DMA_COMMON_IOADDR(rcrp->rcr_desc); 3650 #endif 3651 3652 rcrp->rcr_desc_last_p = rcrp->rcr_desc_rd_head_p + 3653 (hxge_port_rcr_size - 1); 3654 rcrp->rcr_desc_last_pp = rcrp->rcr_desc_rd_head_pp + 3655 (hxge_port_rcr_size - 1); 3656 3657 rcrp->rcr_tail_begin = DMA_COMMON_IOADDR(rcrp->rcr_desc); 3658 rcrp->rcr_tail_begin = (rcrp->rcr_tail_begin & 0x7ffffULL) >> 3; 3659 3660 dmap = (p_hxge_dma_common_t)&rcrp->rcr_desc; 3661 bzero((caddr_t)dmap->kaddrp, dmap->alength); 3662 3663 HXGE_DEBUG_MSG((hxgep, RX_CTL, "rbr entries = %d\n", 3664 rbrp->rbr_max_size)); 3665 3666 /* Count the number of buffers owned by the hardware at this moment */ 3667 for (i = 0; i < rbrp->rbr_max_size; i++) { 3668 rx_msg_p = rbrp->rx_msg_ring[i]; 3669 if (rx_msg_p->ref_cnt == 1) { 3670 n_init_kick++; 3671 } 3672 } 3673 3674 HXGE_DEBUG_MSG((hxgep, RX_CTL, "RxDMA channel re-start...")); 3675 3676 /* 3677 * This is error recover! Some buffers are owned by the hardware and 3678 * the rest are owned by the apps. We should only kick in those 3679 * owned by the hardware initially. The apps will post theirs 3680 * eventually. 3681 */ 3682 (void) hxge_rxdma_start_channel(hxgep, channel, rbrp, rcrp, mboxp, 3683 n_init_kick); 3684 3685 /* 3686 * The DMA channel may disable itself automatically. 3687 * The following is a work-around. 3688 */ 3689 HXGE_REG_RD64(handle, RDC_RX_CFG1, &tmp); 3690 rs = hpi_rxdma_cfg_rdc_enable(handle, channel); 3691 if (rs != HPI_SUCCESS) { 3692 HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL, 3693 "hpi_rxdma_cfg_rdc_enable (channel %d)", channel)); 3694 } 3695 3696 /* 3697 * Delay a bit of time by doing reads. 3698 */ 3699 for (i = 0; i < 1024; i++) { 3700 uint64_t value; 3701 RXDMA_REG_READ64(HXGE_DEV_HPI_HANDLE(hxgep), 3702 RDC_INT_MASK, i & 3, &value); 3703 } 3704 3705 MUTEX_EXIT(&rbrp->lock); 3706 MUTEX_EXIT(&rcrp->lock); 3707 3708 HXGE_DEBUG_MSG((hxgep, RX_CTL, "<== hxge_rxdma_fatal_err_recover")); 3709 return (HXGE_OK); 3710 3711 fail: 3712 MUTEX_EXIT(&rbrp->lock); 3713 MUTEX_EXIT(&rcrp->lock); 3714 HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL, 3715 "Error Recovery failed for channel(%d)", channel)); 3716 return (HXGE_ERROR | rs); 3717 } 3718 3719 static hxge_status_t 3720 hxge_rx_port_fatal_err_recover(p_hxge_t hxgep) 3721 { 3722 hxge_status_t status = HXGE_OK; 3723 p_hxge_dma_common_t *dma_buf_p; 3724 uint16_t channel; 3725 int ndmas; 3726 int i; 3727 block_reset_t reset_reg; 3728 p_rx_rcr_ring_t rcrp; 3729 p_rx_rbr_ring_t rbrp; 3730 3731 HXGE_DEBUG_MSG((hxgep, RX_CTL, "==> hxge_rx_port_fatal_err_recover")); 3732 HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL, "Recovering from RDC error ...")); 3733 3734 /* Disable RxMAC */ 3735 HXGE_DEBUG_MSG((hxgep, RX_CTL, "Disable RxMAC...\n")); 3736 MUTEX_ENTER(&hxgep->vmac_lock); 3737 if (hxge_rx_vmac_disable(hxgep) != HXGE_OK) 3738 goto fail; 3739 3740 HXGE_DELAY(1000); 3741 3742 /* 3743 * Reset RDC block from PEU for this fatal error 3744 */ 3745 reset_reg.value = 0; 3746 reset_reg.bits.rdc_rst = 1; 3747 HXGE_REG_WR32(hxgep->hpi_handle, BLOCK_RESET, reset_reg.value); 3748 3749 HXGE_DELAY(1000); 3750 3751 /* Restore any common settings after PEU reset */ 3752 if (hxge_rxdma_hw_start_common(hxgep) != HXGE_OK) 3753 goto fail; 3754 3755 HXGE_DEBUG_MSG((hxgep, RX_CTL, "Stop all RxDMA channels...")); 3756 3757 ndmas = hxgep->rx_buf_pool_p->ndmas; 3758 dma_buf_p = hxgep->rx_buf_pool_p->dma_buf_pool_p; 3759 3760 for (i = 0; i < ndmas; i++) { 3761 channel = ((p_hxge_dma_common_t)dma_buf_p[i])->dma_channel; 3762 rcrp = hxgep->rx_rcr_rings->rcr_rings[channel]; 3763 rbrp = rcrp->rx_rbr_p; 3764 3765 MUTEX_ENTER(&rbrp->post_lock); 3766 3767 /* 3768 * This function needs to be inside the post_lock 3769 */ 3770 if (hxge_rxdma_fatal_err_recover(hxgep, channel) != HXGE_OK) { 3771 HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL, 3772 "Could not recover channel %d", channel)); 3773 } 3774 MUTEX_EXIT(&rbrp->post_lock); 3775 } 3776 3777 HXGE_DEBUG_MSG((hxgep, RX_CTL, "Reset RxMAC...")); 3778 3779 /* Reset RxMAC */ 3780 if (hxge_rx_vmac_reset(hxgep) != HXGE_OK) { 3781 HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL, 3782 "hxge_rx_port_fatal_err_recover: Failed to reset RxMAC")); 3783 goto fail; 3784 } 3785 3786 HXGE_DEBUG_MSG((hxgep, RX_CTL, "Re-initialize RxMAC...")); 3787 3788 /* Re-Initialize RxMAC */ 3789 if ((status = hxge_rx_vmac_init(hxgep)) != HXGE_OK) { 3790 HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL, 3791 "hxge_rx_port_fatal_err_recover: Failed to reset RxMAC")); 3792 goto fail; 3793 } 3794 HXGE_DEBUG_MSG((hxgep, RX_CTL, "Re-enable RxMAC...")); 3795 3796 /* Re-enable RxMAC */ 3797 if ((status = hxge_rx_vmac_enable(hxgep)) != HXGE_OK) { 3798 HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL, 3799 "hxge_rx_port_fatal_err_recover: Failed to enable RxMAC")); 3800 goto fail; 3801 } 3802 MUTEX_EXIT(&hxgep->vmac_lock); 3803 3804 /* Reset the error mask since PEU reset cleared it */ 3805 HXGE_REG_WR64(hxgep->hpi_handle, RDC_FIFO_ERR_INT_MASK, 0x0); 3806 3807 HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL, 3808 "Recovery Successful, RxPort Restored")); 3809 HXGE_DEBUG_MSG((hxgep, RX_CTL, "<== hxge_rx_port_fatal_err_recover")); 3810 return (HXGE_OK); 3811 3812 fail: 3813 MUTEX_EXIT(&hxgep->vmac_lock); 3814 HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL, 3815 "Error Recovery failed for hxge(%d)", hxgep->instance)); 3816 return (status); 3817 } 3818 3819 static void 3820 hxge_rbr_empty_restore(p_hxge_t hxgep, p_rx_rbr_ring_t rx_rbr_p) 3821 { 3822 hpi_status_t hpi_status; 3823 hxge_status_t status; 3824 rdc_stat_t cs; 3825 p_hxge_rx_ring_stats_t rdc_stats; 3826 3827 rdc_stats = &hxgep->statsp->rdc_stats[rx_rbr_p->rdc]; 3828 3829 /* 3830 * Complete the processing for the RBR Empty by: 3831 * 0) kicking back HXGE_RBR_EMPTY_THRESHOLD 3832 * packets. 3833 * 1) Disable the RX vmac. 3834 * 2) Re-enable the affected DMA channel. 3835 * 3) Re-enable the RX vmac. 3836 */ 3837 3838 /* 3839 * Disable the RX VMAC, but setting the framelength 3840 * to 0, since there is a hardware bug when disabling 3841 * the vmac. 3842 */ 3843 MUTEX_ENTER(&hxgep->vmac_lock); 3844 (void) hxge_rx_vmac_disable(hxgep); 3845 3846 /* 3847 * Re-arm the mex bit for interrupts to be enabled. 3848 */ 3849 cs.value = 0; 3850 cs.bits.mex = 1; 3851 RXDMA_REG_WRITE64(HXGE_DEV_HPI_HANDLE(hxgep), RDC_STAT, 3852 rx_rbr_p->rdc, cs.value); 3853 3854 hpi_status = hpi_rxdma_cfg_rdc_enable( 3855 HXGE_DEV_HPI_HANDLE(hxgep), rx_rbr_p->rdc); 3856 if (hpi_status != HPI_SUCCESS) { 3857 rdc_stats->rbr_empty_fail++; 3858 3859 /* Assume we are already inside the post_lock */ 3860 status = hxge_rxdma_fatal_err_recover(hxgep, rx_rbr_p->rdc); 3861 if (status != HXGE_OK) { 3862 HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL, 3863 "hxge(%d): channel(%d) is empty.", 3864 hxgep->instance, rx_rbr_p->rdc)); 3865 } 3866 } 3867 3868 /* 3869 * Re-enable the RX VMAC. 3870 */ 3871 (void) hxge_rx_vmac_enable(hxgep); 3872 MUTEX_EXIT(&hxgep->vmac_lock); 3873 3874 rdc_stats->rbr_empty_restore++; 3875 rx_rbr_p->rbr_is_empty = B_FALSE; 3876 } 3877