1283514Sarybchik/*- 2283514Sarybchik * Copyright (c) 2012-2015 Solarflare Communications Inc. 3283514Sarybchik * All rights reserved. 4283514Sarybchik * 5283514Sarybchik * Redistribution and use in source and binary forms, with or without 6283514Sarybchik * modification, are permitted provided that the following conditions are met: 7283514Sarybchik * 8283514Sarybchik * 1. Redistributions of source code must retain the above copyright notice, 9283514Sarybchik * this list of conditions and the following disclaimer. 10283514Sarybchik * 2. Redistributions in binary form must reproduce the above copyright notice, 11283514Sarybchik * this list of conditions and the following disclaimer in the documentation 12283514Sarybchik * and/or other materials provided with the distribution. 13283514Sarybchik * 14283514Sarybchik * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 15283514Sarybchik * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 16283514Sarybchik * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 17283514Sarybchik * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR 18283514Sarybchik * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 19283514Sarybchik * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 20283514Sarybchik * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 21283514Sarybchik * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 22283514Sarybchik * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 23283514Sarybchik * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, 24283514Sarybchik * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25283514Sarybchik * 26283514Sarybchik * The views and conclusions contained in the software and documentation are 27283514Sarybchik * those of the authors and should not be interpreted as representing official 28283514Sarybchik * policies, either expressed or implied, of the FreeBSD Project. 29283514Sarybchik */ 30283514Sarybchik 31283514Sarybchik#include <sys/cdefs.h> 32283514Sarybchik__FBSDID("$FreeBSD: releng/10.3/sys/dev/sfxge/common/hunt_tx.c 294381 2016-01-20 07:51:23Z arybchik $"); 33283514Sarybchik 34283514Sarybchik#include "efx.h" 35283514Sarybchik#include "efx_impl.h" 36283514Sarybchik 37283514Sarybchik 38283514Sarybchik#if EFSYS_OPT_HUNTINGTON 39283514Sarybchik 40283514Sarybchik#if EFSYS_OPT_QSTATS 41283514Sarybchik#define EFX_TX_QSTAT_INCR(_etp, _stat) \ 42283514Sarybchik do { \ 43283514Sarybchik (_etp)->et_stat[_stat]++; \ 44283514Sarybchik _NOTE(CONSTANTCONDITION) \ 45283514Sarybchik } while (B_FALSE) 46283514Sarybchik#else 47283514Sarybchik#define EFX_TX_QSTAT_INCR(_etp, _stat) 48283514Sarybchik#endif 49283514Sarybchik 50293927Sarybchikstatic __checkReturn efx_rc_t 51283514Sarybchikefx_mcdi_init_txq( 52283514Sarybchik __in efx_nic_t *enp, 53283514Sarybchik __in uint32_t size, 54283514Sarybchik __in uint32_t target_evq, 55283514Sarybchik __in uint32_t label, 56283514Sarybchik __in uint32_t instance, 57283514Sarybchik __in uint16_t flags, 58283514Sarybchik __in efsys_mem_t *esmp) 59283514Sarybchik{ 60283514Sarybchik efx_mcdi_req_t req; 61283514Sarybchik uint8_t payload[MAX(MC_CMD_INIT_TXQ_IN_LEN(EFX_TXQ_MAX_BUFS), 62283514Sarybchik MC_CMD_INIT_TXQ_OUT_LEN)]; 63283514Sarybchik efx_qword_t *dma_addr; 64283514Sarybchik uint64_t addr; 65283514Sarybchik int npages; 66283514Sarybchik int i; 67293927Sarybchik efx_rc_t rc; 68283514Sarybchik 69283514Sarybchik EFSYS_ASSERT(EFX_TXQ_MAX_BUFS >= 70283514Sarybchik EFX_TXQ_NBUFS(EFX_TXQ_MAXNDESCS(&enp->en_nic_cfg))); 71283514Sarybchik 72283514Sarybchik npages = EFX_TXQ_NBUFS(size); 73283514Sarybchik if (npages > MC_CMD_INIT_TXQ_IN_DMA_ADDR_MAXNUM) { 74283514Sarybchik rc = EINVAL; 75283514Sarybchik goto fail1; 76283514Sarybchik } 77283514Sarybchik 78283514Sarybchik (void) memset(payload, 0, sizeof (payload)); 79283514Sarybchik req.emr_cmd = MC_CMD_INIT_TXQ; 80283514Sarybchik req.emr_in_buf = payload; 81283514Sarybchik req.emr_in_length = MC_CMD_INIT_TXQ_IN_LEN(npages); 82283514Sarybchik req.emr_out_buf = payload; 83283514Sarybchik req.emr_out_length = MC_CMD_INIT_TXQ_OUT_LEN; 84283514Sarybchik 85283514Sarybchik MCDI_IN_SET_DWORD(req, INIT_TXQ_IN_SIZE, size); 86283514Sarybchik MCDI_IN_SET_DWORD(req, INIT_TXQ_IN_TARGET_EVQ, target_evq); 87283514Sarybchik MCDI_IN_SET_DWORD(req, INIT_TXQ_IN_LABEL, label); 88283514Sarybchik MCDI_IN_SET_DWORD(req, INIT_TXQ_IN_INSTANCE, instance); 89283514Sarybchik 90294381Sarybchik MCDI_IN_POPULATE_DWORD_7(req, INIT_TXQ_IN_FLAGS, 91283514Sarybchik INIT_TXQ_IN_FLAG_BUFF_MODE, 0, 92293955Sarybchik INIT_TXQ_IN_FLAG_IP_CSUM_DIS, 93293955Sarybchik (flags & EFX_TXQ_CKSUM_IPV4) ? 0 : 1, 94293955Sarybchik INIT_TXQ_IN_FLAG_TCP_CSUM_DIS, 95293955Sarybchik (flags & EFX_TXQ_CKSUM_TCPUDP) ? 0 : 1, 96294381Sarybchik INIT_TXQ_EXT_IN_FLAG_TSOV2_EN, (flags & EFX_TXQ_FATSOV2) ? 1 : 0, 97283514Sarybchik INIT_TXQ_IN_FLAG_TCP_UDP_ONLY, 0, 98283514Sarybchik INIT_TXQ_IN_CRC_MODE, 0, 99283514Sarybchik INIT_TXQ_IN_FLAG_TIMESTAMP, 0); 100283514Sarybchik 101283514Sarybchik MCDI_IN_SET_DWORD(req, INIT_TXQ_IN_OWNER_ID, 0); 102283514Sarybchik MCDI_IN_SET_DWORD(req, INIT_TXQ_IN_PORT_ID, EVB_PORT_ID_ASSIGNED); 103283514Sarybchik 104283514Sarybchik dma_addr = MCDI_IN2(req, efx_qword_t, INIT_TXQ_IN_DMA_ADDR); 105283514Sarybchik addr = EFSYS_MEM_ADDR(esmp); 106283514Sarybchik 107283514Sarybchik for (i = 0; i < npages; i++) { 108283514Sarybchik EFX_POPULATE_QWORD_2(*dma_addr, 109283514Sarybchik EFX_DWORD_1, (uint32_t)(addr >> 32), 110283514Sarybchik EFX_DWORD_0, (uint32_t)(addr & 0xffffffff)); 111283514Sarybchik 112283514Sarybchik dma_addr++; 113283514Sarybchik addr += EFX_BUF_SIZE; 114283514Sarybchik } 115283514Sarybchik 116283514Sarybchik efx_mcdi_execute(enp, &req); 117283514Sarybchik 118283514Sarybchik if (req.emr_rc != 0) { 119283514Sarybchik rc = req.emr_rc; 120283514Sarybchik goto fail2; 121283514Sarybchik } 122283514Sarybchik 123283514Sarybchik return (0); 124283514Sarybchik 125283514Sarybchikfail2: 126283514Sarybchik EFSYS_PROBE(fail2); 127283514Sarybchikfail1: 128293927Sarybchik EFSYS_PROBE1(fail1, efx_rc_t, rc); 129283514Sarybchik 130283514Sarybchik return (rc); 131283514Sarybchik} 132283514Sarybchik 133293927Sarybchikstatic __checkReturn efx_rc_t 134283514Sarybchikefx_mcdi_fini_txq( 135283514Sarybchik __in efx_nic_t *enp, 136283514Sarybchik __in uint32_t instance) 137283514Sarybchik{ 138283514Sarybchik efx_mcdi_req_t req; 139283514Sarybchik uint8_t payload[MAX(MC_CMD_FINI_TXQ_IN_LEN, 140283514Sarybchik MC_CMD_FINI_TXQ_OUT_LEN)]; 141293927Sarybchik efx_rc_t rc; 142283514Sarybchik 143283514Sarybchik (void) memset(payload, 0, sizeof (payload)); 144283514Sarybchik req.emr_cmd = MC_CMD_FINI_TXQ; 145283514Sarybchik req.emr_in_buf = payload; 146283514Sarybchik req.emr_in_length = MC_CMD_FINI_TXQ_IN_LEN; 147283514Sarybchik req.emr_out_buf = payload; 148283514Sarybchik req.emr_out_length = MC_CMD_FINI_TXQ_OUT_LEN; 149283514Sarybchik 150283514Sarybchik MCDI_IN_SET_DWORD(req, FINI_TXQ_IN_INSTANCE, instance); 151283514Sarybchik 152283514Sarybchik efx_mcdi_execute(enp, &req); 153283514Sarybchik 154283514Sarybchik if ((req.emr_rc != 0) && (req.emr_rc != MC_CMD_ERR_EALREADY)) { 155283514Sarybchik rc = req.emr_rc; 156283514Sarybchik goto fail1; 157283514Sarybchik } 158283514Sarybchik 159283514Sarybchik return (0); 160283514Sarybchik 161283514Sarybchikfail1: 162293927Sarybchik EFSYS_PROBE1(fail1, efx_rc_t, rc); 163283514Sarybchik 164283514Sarybchik return (rc); 165283514Sarybchik} 166283514Sarybchik 167293927Sarybchik __checkReturn efx_rc_t 168293987Sarybchikef10_tx_init( 169283514Sarybchik __in efx_nic_t *enp) 170283514Sarybchik{ 171283514Sarybchik _NOTE(ARGUNUSED(enp)) 172283514Sarybchik return (0); 173283514Sarybchik} 174283514Sarybchik 175283514Sarybchik void 176293987Sarybchikef10_tx_fini( 177283514Sarybchik __in efx_nic_t *enp) 178283514Sarybchik{ 179283514Sarybchik _NOTE(ARGUNUSED(enp)) 180283514Sarybchik} 181283514Sarybchik 182293927Sarybchik __checkReturn efx_rc_t 183293987Sarybchikef10_tx_qcreate( 184283514Sarybchik __in efx_nic_t *enp, 185283514Sarybchik __in unsigned int index, 186283514Sarybchik __in unsigned int label, 187283514Sarybchik __in efsys_mem_t *esmp, 188283514Sarybchik __in size_t n, 189283514Sarybchik __in uint32_t id, 190283514Sarybchik __in uint16_t flags, 191283514Sarybchik __in efx_evq_t *eep, 192283514Sarybchik __in efx_txq_t *etp, 193283514Sarybchik __out unsigned int *addedp) 194283514Sarybchik{ 195283514Sarybchik efx_qword_t desc; 196293927Sarybchik efx_rc_t rc; 197283514Sarybchik 198283514Sarybchik 199283514Sarybchik if ((rc = efx_mcdi_init_txq(enp, n, eep->ee_index, label, index, flags, 200283514Sarybchik esmp)) != 0) 201283514Sarybchik goto fail1; 202283514Sarybchik 203283514Sarybchik /* 204283514Sarybchik * A previous user of this TX queue may have written a descriptor to the 205283514Sarybchik * TX push collector, but not pushed the doorbell (e.g. after a crash). 206283514Sarybchik * The next doorbell write would then push the stale descriptor. 207283514Sarybchik * 208283514Sarybchik * Ensure the (per network port) TX push collector is cleared by writing 209283514Sarybchik * a no-op TX option descriptor. See bug29981 for details. 210283514Sarybchik */ 211283514Sarybchik *addedp = 1; 212283514Sarybchik EFX_POPULATE_QWORD_4(desc, 213283514Sarybchik ESF_DZ_TX_DESC_IS_OPT, 1, 214283514Sarybchik ESF_DZ_TX_OPTION_TYPE, ESE_DZ_TX_OPTION_DESC_CRC_CSUM, 215293955Sarybchik ESF_DZ_TX_OPTION_UDP_TCP_CSUM, 216293955Sarybchik (flags & EFX_TXQ_CKSUM_TCPUDP) ? 1 : 0, 217293955Sarybchik ESF_DZ_TX_OPTION_IP_CSUM, 218293955Sarybchik (flags & EFX_TXQ_CKSUM_IPV4) ? 1 : 0); 219283514Sarybchik 220283514Sarybchik EFSYS_MEM_WRITEQ(etp->et_esmp, 0, &desc); 221293987Sarybchik ef10_tx_qpush(etp, *addedp, 0); 222283514Sarybchik 223283514Sarybchik return (0); 224283514Sarybchik 225283514Sarybchikfail1: 226293927Sarybchik EFSYS_PROBE1(fail1, efx_rc_t, rc); 227283514Sarybchik 228283514Sarybchik return (rc); 229283514Sarybchik} 230283514Sarybchik 231283514Sarybchik void 232293987Sarybchikef10_tx_qdestroy( 233283514Sarybchik __in efx_txq_t *etp) 234283514Sarybchik{ 235283514Sarybchik /* FIXME */ 236283514Sarybchik _NOTE(ARGUNUSED(etp)) 237283514Sarybchik /* FIXME */ 238283514Sarybchik} 239283514Sarybchik 240293927Sarybchik __checkReturn efx_rc_t 241293987Sarybchikef10_tx_qpio_enable( 242283514Sarybchik __in efx_txq_t *etp) 243283514Sarybchik{ 244283514Sarybchik efx_nic_t *enp = etp->et_enp; 245283514Sarybchik efx_piobuf_handle_t handle; 246293927Sarybchik efx_rc_t rc; 247283514Sarybchik 248283514Sarybchik if (etp->et_pio_size != 0) { 249283514Sarybchik rc = EALREADY; 250283514Sarybchik goto fail1; 251283514Sarybchik } 252283514Sarybchik 253283514Sarybchik /* Sub-allocate a PIO block from a piobuf */ 254294006Sarybchik if ((rc = ef10_nic_pio_alloc(enp, 255283514Sarybchik &etp->et_pio_bufnum, 256283514Sarybchik &handle, 257283514Sarybchik &etp->et_pio_blknum, 258283514Sarybchik &etp->et_pio_offset, 259283514Sarybchik &etp->et_pio_size)) != 0) { 260283514Sarybchik goto fail2; 261283514Sarybchik } 262283514Sarybchik EFSYS_ASSERT3U(etp->et_pio_size, !=, 0); 263283514Sarybchik 264283514Sarybchik /* Link the piobuf to this TXQ */ 265294006Sarybchik if ((rc = ef10_nic_pio_link(enp, etp->et_index, handle)) != 0) { 266283514Sarybchik goto fail3; 267283514Sarybchik } 268283514Sarybchik 269283514Sarybchik /* 270283514Sarybchik * et_pio_offset is the offset of the sub-allocated block within the 271283514Sarybchik * hardware PIO buffer. It is used as the buffer address in the PIO 272283514Sarybchik * option descriptor. 273283514Sarybchik * 274283514Sarybchik * et_pio_write_offset is the offset of the sub-allocated block from the 275283514Sarybchik * start of the write-combined memory mapping, and is used for writing 276283514Sarybchik * data into the PIO buffer. 277283514Sarybchik */ 278283514Sarybchik etp->et_pio_write_offset = 279283514Sarybchik (etp->et_pio_bufnum * ER_DZ_TX_PIOBUF_STEP) + 280283514Sarybchik ER_DZ_TX_PIOBUF_OFST + etp->et_pio_offset; 281283514Sarybchik 282283514Sarybchik return (0); 283283514Sarybchik 284283514Sarybchikfail3: 285283514Sarybchik EFSYS_PROBE(fail3); 286294006Sarybchik ef10_nic_pio_free(enp, etp->et_pio_bufnum, etp->et_pio_blknum); 287283514Sarybchik etp->et_pio_size = 0; 288283514Sarybchikfail2: 289283514Sarybchik EFSYS_PROBE(fail2); 290283514Sarybchikfail1: 291293927Sarybchik EFSYS_PROBE1(fail1, efx_rc_t, rc); 292283514Sarybchik 293283514Sarybchik return (rc); 294283514Sarybchik} 295283514Sarybchik 296283514Sarybchik void 297293987Sarybchikef10_tx_qpio_disable( 298283514Sarybchik __in efx_txq_t *etp) 299283514Sarybchik{ 300283514Sarybchik efx_nic_t *enp = etp->et_enp; 301283514Sarybchik 302283514Sarybchik if (etp->et_pio_size != 0) { 303283514Sarybchik /* Unlink the piobuf from this TXQ */ 304294006Sarybchik ef10_nic_pio_unlink(enp, etp->et_index); 305283514Sarybchik 306283514Sarybchik /* Free the sub-allocated PIO block */ 307294006Sarybchik ef10_nic_pio_free(enp, etp->et_pio_bufnum, etp->et_pio_blknum); 308283514Sarybchik etp->et_pio_size = 0; 309283514Sarybchik etp->et_pio_write_offset = 0; 310283514Sarybchik } 311283514Sarybchik} 312283514Sarybchik 313293927Sarybchik __checkReturn efx_rc_t 314293987Sarybchikef10_tx_qpio_write( 315283514Sarybchik __in efx_txq_t *etp, 316283514Sarybchik __in_ecount(length) uint8_t *buffer, 317283514Sarybchik __in size_t length, 318283514Sarybchik __in size_t offset) 319283514Sarybchik{ 320283514Sarybchik efx_nic_t *enp = etp->et_enp; 321283514Sarybchik efsys_bar_t *esbp = enp->en_esbp; 322283514Sarybchik uint32_t write_offset; 323283514Sarybchik uint32_t write_offset_limit; 324283514Sarybchik efx_qword_t *eqp; 325293927Sarybchik efx_rc_t rc; 326283514Sarybchik 327283514Sarybchik EFSYS_ASSERT(length % sizeof (efx_qword_t) == 0); 328283514Sarybchik 329283514Sarybchik if (etp->et_pio_size == 0) { 330283514Sarybchik rc = ENOENT; 331283514Sarybchik goto fail1; 332283514Sarybchik } 333283514Sarybchik if (offset + length > etp->et_pio_size) { 334283514Sarybchik rc = ENOSPC; 335283514Sarybchik goto fail2; 336283514Sarybchik } 337283514Sarybchik 338283514Sarybchik /* 339283514Sarybchik * Writes to PIO buffers must be 64 bit aligned, and multiples of 340283514Sarybchik * 64 bits. 341283514Sarybchik */ 342283514Sarybchik write_offset = etp->et_pio_write_offset + offset; 343283514Sarybchik write_offset_limit = write_offset + length; 344283514Sarybchik eqp = (efx_qword_t *)buffer; 345283514Sarybchik while (write_offset < write_offset_limit) { 346283514Sarybchik EFSYS_BAR_WC_WRITEQ(esbp, write_offset, eqp); 347283514Sarybchik eqp++; 348283514Sarybchik write_offset += sizeof (efx_qword_t); 349283514Sarybchik } 350283514Sarybchik 351283514Sarybchik return (0); 352283514Sarybchik 353283514Sarybchikfail2: 354283514Sarybchik EFSYS_PROBE(fail2); 355283514Sarybchikfail1: 356293927Sarybchik EFSYS_PROBE1(fail1, efx_rc_t, rc); 357283514Sarybchik 358283514Sarybchik return (rc); 359283514Sarybchik} 360283514Sarybchik 361293927Sarybchik __checkReturn efx_rc_t 362293987Sarybchikef10_tx_qpio_post( 363283514Sarybchik __in efx_txq_t *etp, 364283514Sarybchik __in size_t pkt_length, 365283514Sarybchik __in unsigned int completed, 366283514Sarybchik __inout unsigned int *addedp) 367283514Sarybchik{ 368283514Sarybchik efx_qword_t pio_desc; 369283514Sarybchik unsigned int id; 370283514Sarybchik size_t offset; 371283514Sarybchik unsigned int added = *addedp; 372293927Sarybchik efx_rc_t rc; 373283514Sarybchik 374283514Sarybchik 375283514Sarybchik if (added - completed + 1 > EFX_TXQ_LIMIT(etp->et_mask + 1)) { 376283514Sarybchik rc = ENOSPC; 377283514Sarybchik goto fail1; 378283514Sarybchik } 379283514Sarybchik 380283514Sarybchik if (etp->et_pio_size == 0) { 381283514Sarybchik rc = ENOENT; 382283514Sarybchik goto fail2; 383283514Sarybchik } 384283514Sarybchik 385283514Sarybchik id = added++ & etp->et_mask; 386283514Sarybchik offset = id * sizeof (efx_qword_t); 387283514Sarybchik 388283514Sarybchik EFSYS_PROBE4(tx_pio_post, unsigned int, etp->et_index, 389283514Sarybchik unsigned int, id, uint32_t, etp->et_pio_offset, 390283514Sarybchik size_t, pkt_length); 391283514Sarybchik 392283514Sarybchik EFX_POPULATE_QWORD_5(pio_desc, 393283514Sarybchik ESF_DZ_TX_DESC_IS_OPT, 1, 394283514Sarybchik ESF_DZ_TX_OPTION_TYPE, 1, 395283514Sarybchik ESF_DZ_TX_PIO_CONT, 0, 396283514Sarybchik ESF_DZ_TX_PIO_BYTE_CNT, pkt_length, 397283514Sarybchik ESF_DZ_TX_PIO_BUF_ADDR, etp->et_pio_offset); 398283514Sarybchik 399283514Sarybchik EFSYS_MEM_WRITEQ(etp->et_esmp, offset, &pio_desc); 400283514Sarybchik 401283514Sarybchik EFX_TX_QSTAT_INCR(etp, TX_POST_PIO); 402283514Sarybchik 403283514Sarybchik *addedp = added; 404283514Sarybchik return (0); 405283514Sarybchik 406283514Sarybchikfail2: 407283514Sarybchik EFSYS_PROBE(fail2); 408283514Sarybchikfail1: 409293927Sarybchik EFSYS_PROBE1(fail1, efx_rc_t, rc); 410283514Sarybchik 411283514Sarybchik return (rc); 412283514Sarybchik} 413283514Sarybchik 414293927Sarybchik __checkReturn efx_rc_t 415293987Sarybchikef10_tx_qpost( 416283514Sarybchik __in efx_txq_t *etp, 417283514Sarybchik __in_ecount(n) efx_buffer_t *eb, 418283514Sarybchik __in unsigned int n, 419283514Sarybchik __in unsigned int completed, 420283514Sarybchik __inout unsigned int *addedp) 421283514Sarybchik{ 422283514Sarybchik unsigned int added = *addedp; 423283514Sarybchik unsigned int i; 424293927Sarybchik efx_rc_t rc; 425283514Sarybchik 426283514Sarybchik if (added - completed + n > EFX_TXQ_LIMIT(etp->et_mask + 1)) { 427283514Sarybchik rc = ENOSPC; 428283514Sarybchik goto fail1; 429283514Sarybchik } 430283514Sarybchik 431283514Sarybchik for (i = 0; i < n; i++) { 432283514Sarybchik efx_buffer_t *ebp = &eb[i]; 433283514Sarybchik efsys_dma_addr_t addr = ebp->eb_addr; 434283514Sarybchik size_t size = ebp->eb_size; 435283514Sarybchik boolean_t eop = ebp->eb_eop; 436283514Sarybchik unsigned int id; 437283514Sarybchik size_t offset; 438283514Sarybchik efx_qword_t qword; 439283514Sarybchik 440283514Sarybchik /* Fragments must not span 4k boundaries. */ 441283514Sarybchik EFSYS_ASSERT(P2ROUNDUP(addr + 1, 4096) >= (addr + size)); 442283514Sarybchik 443283514Sarybchik id = added++ & etp->et_mask; 444283514Sarybchik offset = id * sizeof (efx_qword_t); 445283514Sarybchik 446283514Sarybchik EFSYS_PROBE5(tx_post, unsigned int, etp->et_index, 447283514Sarybchik unsigned int, id, efsys_dma_addr_t, addr, 448283514Sarybchik size_t, size, boolean_t, eop); 449283514Sarybchik 450283514Sarybchik EFX_POPULATE_QWORD_5(qword, 451283514Sarybchik ESF_DZ_TX_KER_TYPE, 0, 452283514Sarybchik ESF_DZ_TX_KER_CONT, (eop) ? 0 : 1, 453283514Sarybchik ESF_DZ_TX_KER_BYTE_CNT, (uint32_t)(size), 454283514Sarybchik ESF_DZ_TX_KER_BUF_ADDR_DW0, (uint32_t)(addr & 0xffffffff), 455283514Sarybchik ESF_DZ_TX_KER_BUF_ADDR_DW1, (uint32_t)(addr >> 32)); 456283514Sarybchik 457283514Sarybchik EFSYS_MEM_WRITEQ(etp->et_esmp, offset, &qword); 458283514Sarybchik } 459283514Sarybchik 460283514Sarybchik EFX_TX_QSTAT_INCR(etp, TX_POST); 461283514Sarybchik 462283514Sarybchik *addedp = added; 463283514Sarybchik return (0); 464283514Sarybchik 465283514Sarybchikfail1: 466293927Sarybchik EFSYS_PROBE1(fail1, efx_rc_t, rc); 467283514Sarybchik 468283514Sarybchik return (rc); 469283514Sarybchik} 470283514Sarybchik 471283514Sarybchik/* 472283514Sarybchik * This improves performance by pushing a TX descriptor at the same time as the 473283514Sarybchik * doorbell. The descriptor must be added to the TXQ, so that can be used if the 474283514Sarybchik * hardware decides not to use the pushed descriptor. 475283514Sarybchik */ 476283514Sarybchik void 477293987Sarybchikef10_tx_qpush( 478283514Sarybchik __in efx_txq_t *etp, 479283514Sarybchik __in unsigned int added, 480283514Sarybchik __in unsigned int pushed) 481283514Sarybchik{ 482283514Sarybchik efx_nic_t *enp = etp->et_enp; 483283514Sarybchik unsigned int wptr; 484283514Sarybchik unsigned int id; 485283514Sarybchik size_t offset; 486283514Sarybchik efx_qword_t desc; 487283514Sarybchik efx_oword_t oword; 488283514Sarybchik 489283514Sarybchik wptr = added & etp->et_mask; 490283514Sarybchik id = pushed & etp->et_mask; 491283514Sarybchik offset = id * sizeof (efx_qword_t); 492283514Sarybchik 493283514Sarybchik EFSYS_MEM_READQ(etp->et_esmp, offset, &desc); 494283514Sarybchik EFX_POPULATE_OWORD_3(oword, 495283514Sarybchik ERF_DZ_TX_DESC_WPTR, wptr, 496283514Sarybchik ERF_DZ_TX_DESC_HWORD, EFX_QWORD_FIELD(desc, EFX_DWORD_1), 497283514Sarybchik ERF_DZ_TX_DESC_LWORD, EFX_QWORD_FIELD(desc, EFX_DWORD_0)); 498283514Sarybchik 499283514Sarybchik /* Guarantee ordering of memory (descriptors) and PIO (doorbell) */ 500283514Sarybchik EFX_DMA_SYNC_QUEUE_FOR_DEVICE(etp->et_esmp, etp->et_mask + 1, wptr, id); 501283514Sarybchik EFSYS_PIO_WRITE_BARRIER(); 502283514Sarybchik EFX_BAR_TBL_DOORBELL_WRITEO(enp, ER_DZ_TX_DESC_UPD_REG, etp->et_index, 503283514Sarybchik &oword); 504283514Sarybchik} 505283514Sarybchik 506293927Sarybchik __checkReturn efx_rc_t 507293987Sarybchikef10_tx_qdesc_post( 508283514Sarybchik __in efx_txq_t *etp, 509283514Sarybchik __in_ecount(n) efx_desc_t *ed, 510283514Sarybchik __in unsigned int n, 511283514Sarybchik __in unsigned int completed, 512283514Sarybchik __inout unsigned int *addedp) 513283514Sarybchik{ 514283514Sarybchik unsigned int added = *addedp; 515283514Sarybchik unsigned int i; 516293927Sarybchik efx_rc_t rc; 517283514Sarybchik 518283514Sarybchik if (added - completed + n > EFX_TXQ_LIMIT(etp->et_mask + 1)) { 519283514Sarybchik rc = ENOSPC; 520283514Sarybchik goto fail1; 521283514Sarybchik } 522283514Sarybchik 523283514Sarybchik for (i = 0; i < n; i++) { 524283514Sarybchik efx_desc_t *edp = &ed[i]; 525283514Sarybchik unsigned int id; 526283514Sarybchik size_t offset; 527283514Sarybchik 528283514Sarybchik id = added++ & etp->et_mask; 529283514Sarybchik offset = id * sizeof (efx_desc_t); 530283514Sarybchik 531283514Sarybchik EFSYS_MEM_WRITEQ(etp->et_esmp, offset, &edp->ed_eq); 532283514Sarybchik } 533283514Sarybchik 534283514Sarybchik EFSYS_PROBE3(tx_desc_post, unsigned int, etp->et_index, 535283514Sarybchik unsigned int, added, unsigned int, n); 536283514Sarybchik 537283514Sarybchik EFX_TX_QSTAT_INCR(etp, TX_POST); 538283514Sarybchik 539283514Sarybchik *addedp = added; 540283514Sarybchik return (0); 541283514Sarybchik 542283514Sarybchikfail1: 543293927Sarybchik EFSYS_PROBE1(fail1, efx_rc_t, rc); 544283514Sarybchik 545283514Sarybchik return (rc); 546283514Sarybchik} 547283514Sarybchik 548283514Sarybchik void 549293987Sarybchikef10_tx_qdesc_dma_create( 550283514Sarybchik __in efx_txq_t *etp, 551283514Sarybchik __in efsys_dma_addr_t addr, 552283514Sarybchik __in size_t size, 553283514Sarybchik __in boolean_t eop, 554283514Sarybchik __out efx_desc_t *edp) 555283514Sarybchik{ 556283514Sarybchik /* Fragments must not span 4k boundaries. */ 557283514Sarybchik EFSYS_ASSERT(P2ROUNDUP(addr + 1, 4096) >= addr + size); 558283514Sarybchik 559283514Sarybchik EFSYS_PROBE4(tx_desc_dma_create, unsigned int, etp->et_index, 560283514Sarybchik efsys_dma_addr_t, addr, 561283514Sarybchik size_t, size, boolean_t, eop); 562283514Sarybchik 563283514Sarybchik EFX_POPULATE_QWORD_5(edp->ed_eq, 564283514Sarybchik ESF_DZ_TX_KER_TYPE, 0, 565283514Sarybchik ESF_DZ_TX_KER_CONT, (eop) ? 0 : 1, 566283514Sarybchik ESF_DZ_TX_KER_BYTE_CNT, (uint32_t)(size), 567283514Sarybchik ESF_DZ_TX_KER_BUF_ADDR_DW0, (uint32_t)(addr & 0xffffffff), 568283514Sarybchik ESF_DZ_TX_KER_BUF_ADDR_DW1, (uint32_t)(addr >> 32)); 569283514Sarybchik} 570283514Sarybchik 571283514Sarybchik void 572283514Sarybchikhunt_tx_qdesc_tso_create( 573283514Sarybchik __in efx_txq_t *etp, 574283514Sarybchik __in uint16_t ipv4_id, 575283514Sarybchik __in uint32_t tcp_seq, 576283514Sarybchik __in uint8_t tcp_flags, 577283514Sarybchik __out efx_desc_t *edp) 578283514Sarybchik{ 579283514Sarybchik EFSYS_PROBE4(tx_desc_tso_create, unsigned int, etp->et_index, 580283514Sarybchik uint16_t, ipv4_id, uint32_t, tcp_seq, 581283514Sarybchik uint8_t, tcp_flags); 582283514Sarybchik 583283514Sarybchik EFX_POPULATE_QWORD_5(edp->ed_eq, 584283514Sarybchik ESF_DZ_TX_DESC_IS_OPT, 1, 585283514Sarybchik ESF_DZ_TX_OPTION_TYPE, 586283514Sarybchik ESE_DZ_TX_OPTION_DESC_TSO, 587283514Sarybchik ESF_DZ_TX_TSO_TCP_FLAGS, tcp_flags, 588283514Sarybchik ESF_DZ_TX_TSO_IP_ID, ipv4_id, 589283514Sarybchik ESF_DZ_TX_TSO_TCP_SEQNO, tcp_seq); 590283514Sarybchik} 591283514Sarybchik 592283514Sarybchik void 593294381Sarybchikef10_tx_qdesc_tso2_create( 594294381Sarybchik __in efx_txq_t *etp, 595294381Sarybchik __in uint16_t ipv4_id, 596294381Sarybchik __in uint32_t tcp_seq, 597294381Sarybchik __in uint16_t tcp_mss, 598294381Sarybchik __out_ecount(count) efx_desc_t *edp, 599294381Sarybchik __in int count) 600294381Sarybchik{ 601294381Sarybchik EFSYS_PROBE4(tx_desc_tso2_create, unsigned int, etp->et_index, 602294381Sarybchik uint16_t, ipv4_id, uint32_t, tcp_seq, 603294381Sarybchik uint16_t, tcp_mss); 604294381Sarybchik 605294381Sarybchik EFSYS_ASSERT(count >= EFX_TX_FATSOV2_OPT_NDESCS); 606294381Sarybchik 607294381Sarybchik EFX_POPULATE_QWORD_5(edp[0].ed_eq, 608294381Sarybchik ESF_DZ_TX_DESC_IS_OPT, 1, 609294381Sarybchik ESF_DZ_TX_OPTION_TYPE, 610294381Sarybchik ESE_DZ_TX_OPTION_DESC_TSO, 611294381Sarybchik ESF_DZ_TX_TSO_OPTION_TYPE, 612294381Sarybchik ESE_DZ_TX_TSO_OPTION_DESC_FATSO2A, 613294381Sarybchik ESF_DZ_TX_TSO_IP_ID, ipv4_id, 614294381Sarybchik ESF_DZ_TX_TSO_TCP_SEQNO, tcp_seq); 615294381Sarybchik EFX_POPULATE_QWORD_4(edp[1].ed_eq, 616294381Sarybchik ESF_DZ_TX_DESC_IS_OPT, 1, 617294381Sarybchik ESF_DZ_TX_OPTION_TYPE, 618294381Sarybchik ESE_DZ_TX_OPTION_DESC_TSO, 619294381Sarybchik ESF_DZ_TX_TSO_OPTION_TYPE, 620294381Sarybchik ESE_DZ_TX_TSO_OPTION_DESC_FATSO2B, 621294381Sarybchik ESF_DZ_TX_TSO_TCP_MSS, tcp_mss); 622294381Sarybchik} 623294381Sarybchik 624294381Sarybchik void 625293987Sarybchikef10_tx_qdesc_vlantci_create( 626283514Sarybchik __in efx_txq_t *etp, 627283514Sarybchik __in uint16_t tci, 628283514Sarybchik __out efx_desc_t *edp) 629283514Sarybchik{ 630283514Sarybchik EFSYS_PROBE2(tx_desc_vlantci_create, unsigned int, etp->et_index, 631283514Sarybchik uint16_t, tci); 632283514Sarybchik 633283514Sarybchik EFX_POPULATE_QWORD_4(edp->ed_eq, 634283514Sarybchik ESF_DZ_TX_DESC_IS_OPT, 1, 635283514Sarybchik ESF_DZ_TX_OPTION_TYPE, 636283514Sarybchik ESE_DZ_TX_OPTION_DESC_VLAN, 637283514Sarybchik ESF_DZ_TX_VLAN_OP, tci ? 1 : 0, 638283514Sarybchik ESF_DZ_TX_VLAN_TAG1, tci); 639283514Sarybchik} 640283514Sarybchik 641283514Sarybchik 642293927Sarybchik __checkReturn efx_rc_t 643293987Sarybchikef10_tx_qpace( 644283514Sarybchik __in efx_txq_t *etp, 645283514Sarybchik __in unsigned int ns) 646283514Sarybchik{ 647293927Sarybchik efx_rc_t rc; 648283514Sarybchik 649283514Sarybchik /* FIXME */ 650283514Sarybchik _NOTE(ARGUNUSED(etp, ns)) 651283514Sarybchik if (B_FALSE) { 652283514Sarybchik rc = ENOTSUP; 653283514Sarybchik goto fail1; 654283514Sarybchik } 655283514Sarybchik /* FIXME */ 656283514Sarybchik 657283514Sarybchik return (0); 658283514Sarybchik 659283514Sarybchikfail1: 660293927Sarybchik EFSYS_PROBE1(fail1, efx_rc_t, rc); 661283514Sarybchik 662283514Sarybchik return (rc); 663283514Sarybchik} 664283514Sarybchik 665293927Sarybchik __checkReturn efx_rc_t 666293987Sarybchikef10_tx_qflush( 667283514Sarybchik __in efx_txq_t *etp) 668283514Sarybchik{ 669283514Sarybchik efx_nic_t *enp = etp->et_enp; 670293927Sarybchik efx_rc_t rc; 671283514Sarybchik 672283514Sarybchik if ((rc = efx_mcdi_fini_txq(enp, etp->et_index)) != 0) 673283514Sarybchik goto fail1; 674283514Sarybchik 675283514Sarybchik return (0); 676283514Sarybchik 677283514Sarybchikfail1: 678293927Sarybchik EFSYS_PROBE1(fail1, efx_rc_t, rc); 679283514Sarybchik 680283514Sarybchik return (rc); 681283514Sarybchik} 682283514Sarybchik 683283514Sarybchik void 684293987Sarybchikef10_tx_qenable( 685283514Sarybchik __in efx_txq_t *etp) 686283514Sarybchik{ 687283514Sarybchik /* FIXME */ 688283514Sarybchik _NOTE(ARGUNUSED(etp)) 689283514Sarybchik /* FIXME */ 690283514Sarybchik} 691283514Sarybchik 692283514Sarybchik#if EFSYS_OPT_QSTATS 693283514Sarybchik void 694293987Sarybchikef10_tx_qstats_update( 695283514Sarybchik __in efx_txq_t *etp, 696283514Sarybchik __inout_ecount(TX_NQSTATS) efsys_stat_t *stat) 697283514Sarybchik{ 698283514Sarybchik unsigned int id; 699283514Sarybchik 700283514Sarybchik for (id = 0; id < TX_NQSTATS; id++) { 701283514Sarybchik efsys_stat_t *essp = &stat[id]; 702283514Sarybchik 703283514Sarybchik EFSYS_STAT_INCR(essp, etp->et_stat[id]); 704283514Sarybchik etp->et_stat[id] = 0; 705283514Sarybchik } 706283514Sarybchik} 707283514Sarybchik 708283514Sarybchik#endif /* EFSYS_OPT_QSTATS */ 709283514Sarybchik 710283514Sarybchik#endif /* EFSYS_OPT_HUNTINGTON */ 711