2 * Copyright (c) 2012-2016 Solarflare Communications Inc.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
8 * 1. Redistributions of source code must retain the above copyright notice,
9 * this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright notice,
11 * this list of conditions and the following disclaimer in the documentation
12 * and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
15 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
16 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
21 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
22 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
23 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
24 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 * The views and conclusions contained in the software and documentation are
27 * those of the authors and should not be interpreted as representing official
28 * policies, either expressed or implied, of the FreeBSD Project.
35 #if EFSYS_OPT_HUNTINGTON || EFSYS_OPT_MEDFORD
38 static __checkReturn efx_rc_t
42 __in uint32_t target_evq,
44 __in uint32_t instance,
45 __in efsys_mem_t *esmp,
46 __in boolean_t disable_scatter,
47 __in uint32_t ps_bufsize)
50 uint8_t payload[MAX(MC_CMD_INIT_RXQ_EXT_IN_LEN,
51 MC_CMD_INIT_RXQ_EXT_OUT_LEN)];
52 int npages = EFX_RXQ_NBUFS(size);
54 efx_qword_t *dma_addr;
59 /* If this changes, then the payload size might need to change. */
60 EFSYS_ASSERT3U(MC_CMD_INIT_RXQ_OUT_LEN, ==, 0);
61 EFSYS_ASSERT3U(size, <=, EFX_RXQ_MAXNDESCS);
64 dma_mode = MC_CMD_INIT_RXQ_EXT_IN_PACKED_STREAM;
66 dma_mode = MC_CMD_INIT_RXQ_EXT_IN_SINGLE_PACKET;
68 (void) memset(payload, 0, sizeof (payload));
69 req.emr_cmd = MC_CMD_INIT_RXQ;
70 req.emr_in_buf = payload;
71 req.emr_in_length = MC_CMD_INIT_RXQ_EXT_IN_LEN;
72 req.emr_out_buf = payload;
73 req.emr_out_length = MC_CMD_INIT_RXQ_EXT_OUT_LEN;
75 MCDI_IN_SET_DWORD(req, INIT_RXQ_EXT_IN_SIZE, size);
76 MCDI_IN_SET_DWORD(req, INIT_RXQ_EXT_IN_TARGET_EVQ, target_evq);
77 MCDI_IN_SET_DWORD(req, INIT_RXQ_EXT_IN_LABEL, label);
78 MCDI_IN_SET_DWORD(req, INIT_RXQ_EXT_IN_INSTANCE, instance);
79 MCDI_IN_POPULATE_DWORD_8(req, INIT_RXQ_EXT_IN_FLAGS,
80 INIT_RXQ_EXT_IN_FLAG_BUFF_MODE, 0,
81 INIT_RXQ_EXT_IN_FLAG_HDR_SPLIT, 0,
82 INIT_RXQ_EXT_IN_FLAG_TIMESTAMP, 0,
83 INIT_RXQ_EXT_IN_CRC_MODE, 0,
84 INIT_RXQ_EXT_IN_FLAG_PREFIX, 1,
85 INIT_RXQ_EXT_IN_FLAG_DISABLE_SCATTER, disable_scatter,
86 INIT_RXQ_EXT_IN_DMA_MODE,
88 INIT_RXQ_EXT_IN_PACKED_STREAM_BUFF_SIZE, ps_bufsize);
89 MCDI_IN_SET_DWORD(req, INIT_RXQ_EXT_IN_OWNER_ID, 0);
90 MCDI_IN_SET_DWORD(req, INIT_RXQ_EXT_IN_PORT_ID, EVB_PORT_ID_ASSIGNED);
92 dma_addr = MCDI_IN2(req, efx_qword_t, INIT_RXQ_IN_DMA_ADDR);
93 addr = EFSYS_MEM_ADDR(esmp);
95 for (i = 0; i < npages; i++) {
96 EFX_POPULATE_QWORD_2(*dma_addr,
97 EFX_DWORD_1, (uint32_t)(addr >> 32),
98 EFX_DWORD_0, (uint32_t)(addr & 0xffffffff));
101 addr += EFX_BUF_SIZE;
104 efx_mcdi_execute(enp, &req);
106 if (req.emr_rc != 0) {
114 EFSYS_PROBE1(fail1, efx_rc_t, rc);
119 static __checkReturn efx_rc_t
122 __in uint32_t instance)
125 uint8_t payload[MAX(MC_CMD_FINI_RXQ_IN_LEN,
126 MC_CMD_FINI_RXQ_OUT_LEN)];
129 (void) memset(payload, 0, sizeof (payload));
130 req.emr_cmd = MC_CMD_FINI_RXQ;
131 req.emr_in_buf = payload;
132 req.emr_in_length = MC_CMD_FINI_RXQ_IN_LEN;
133 req.emr_out_buf = payload;
134 req.emr_out_length = MC_CMD_FINI_RXQ_OUT_LEN;
136 MCDI_IN_SET_DWORD(req, FINI_RXQ_IN_INSTANCE, instance);
138 efx_mcdi_execute_quiet(enp, &req);
140 if ((req.emr_rc != 0) && (req.emr_rc != MC_CMD_ERR_EALREADY)) {
148 EFSYS_PROBE1(fail1, efx_rc_t, rc);
154 __checkReturn efx_rc_t
164 * EF10 RX pseudo-header
165 * ---------------------
167 * Receive packets are prefixed by an (optional) 14 byte pseudo-header:
169 * +00: Toeplitz hash value.
170 * (32bit little-endian)
171 * +04: Outer VLAN tag. Zero if the packet did not have an outer VLAN tag.
173 * +06: Inner VLAN tag. Zero if the packet did not have an inner VLAN tag.
175 * +08: Packet Length. Zero if the RX datapath was in cut-through mode.
176 * (16bit little-endian)
177 * +10: MAC timestamp. Zero if timestamping is not enabled.
178 * (32bit little-endian)
180 * See "The RX Pseudo-header" in SF-109306-TC.
183 __checkReturn efx_rc_t
184 ef10_rx_prefix_pktlen(
186 __in uint8_t *buffer,
187 __out uint16_t *lengthp)
189 _NOTE(ARGUNUSED(enp))
192 * The RX pseudo-header contains the packet length, excluding the
193 * pseudo-header. If the hardware receive datapath was operating in
194 * cut-through mode then the length in the RX pseudo-header will be
195 * zero, and the packet length must be obtained from the DMA length
196 * reported in the RX event.
198 *lengthp = buffer[8] | (buffer[9] << 8);
205 __in_ecount(n) efsys_dma_addr_t *addrp,
208 __in unsigned int completed,
209 __in unsigned int added)
216 /* The client driver must not overfill the queue */
217 EFSYS_ASSERT3U(added - completed + n, <=,
218 EFX_RXQ_LIMIT(erp->er_mask + 1));
220 id = added & (erp->er_mask);
221 for (i = 0; i < n; i++) {
222 EFSYS_PROBE4(rx_post, unsigned int, erp->er_index,
223 unsigned int, id, efsys_dma_addr_t, addrp[i],
226 EFX_POPULATE_QWORD_3(qword,
227 ESF_DZ_RX_KER_BYTE_CNT, (uint32_t)(size),
228 ESF_DZ_RX_KER_BUF_ADDR_DW0,
229 (uint32_t)(addrp[i] & 0xffffffff),
230 ESF_DZ_RX_KER_BUF_ADDR_DW1,
231 (uint32_t)(addrp[i] >> 32));
233 offset = id * sizeof (efx_qword_t);
234 EFSYS_MEM_WRITEQ(erp->er_esmp, offset, &qword);
236 id = (id + 1) & (erp->er_mask);
243 __in unsigned int added,
244 __inout unsigned int *pushedp)
246 efx_nic_t *enp = erp->er_enp;
247 unsigned int pushed = *pushedp;
251 /* Hardware has alignment restriction for WPTR */
252 wptr = P2ALIGN(added, EF10_RX_WPTR_ALIGN);
258 /* Push the populated descriptors out */
259 wptr &= erp->er_mask;
261 EFX_POPULATE_DWORD_1(dword, ERF_DZ_RX_DESC_WPTR, wptr);
263 /* Guarantee ordering of memory (descriptors) and PIO (doorbell) */
264 EFX_DMA_SYNC_QUEUE_FOR_DEVICE(erp->er_esmp, erp->er_mask + 1,
265 wptr, pushed & erp->er_mask);
266 EFSYS_PIO_WRITE_BARRIER();
267 EFX_BAR_TBL_WRITED(enp, ER_DZ_RX_DESC_UPD_REG,
268 erp->er_index, &dword, B_FALSE);
271 __checkReturn efx_rc_t
275 efx_nic_t *enp = erp->er_enp;
278 if ((rc = efx_mcdi_fini_rxq(enp, erp->er_index)) != 0)
284 EFSYS_PROBE1(fail1, efx_rc_t, rc);
294 _NOTE(ARGUNUSED(erp))
298 __checkReturn efx_rc_t
301 __in unsigned int index,
302 __in unsigned int label,
303 __in efx_rxq_type_t type,
304 __in efsys_mem_t *esmp,
310 efx_nic_cfg_t *encp = &(enp->en_nic_cfg);
312 boolean_t disable_scatter;
313 unsigned int ps_buf_size;
315 _NOTE(ARGUNUSED(id, erp))
317 EFX_STATIC_ASSERT(EFX_EV_RX_NLABELS == (1 << ESF_DZ_RX_QLABEL_WIDTH));
318 EFSYS_ASSERT3U(label, <, EFX_EV_RX_NLABELS);
319 EFSYS_ASSERT3U(enp->en_rx_qcount + 1, <, encp->enc_rxq_limit);
321 EFX_STATIC_ASSERT(ISP2(EFX_RXQ_MAXNDESCS));
322 EFX_STATIC_ASSERT(ISP2(EFX_RXQ_MINNDESCS));
324 if (!ISP2(n) || (n < EFX_RXQ_MINNDESCS) || (n > EFX_RXQ_MAXNDESCS)) {
328 if (index >= encp->enc_rxq_limit) {
334 case EFX_RXQ_TYPE_DEFAULT:
335 case EFX_RXQ_TYPE_SCATTER:
343 EFSYS_ASSERT(ps_buf_size == 0);
345 /* Scatter can only be disabled if the firmware supports doing so */
346 if (type == EFX_RXQ_TYPE_SCATTER)
347 disable_scatter = B_FALSE;
349 disable_scatter = encp->enc_rx_disable_scatter_supported;
351 if ((rc = efx_mcdi_init_rxq(enp, n, eep->ee_index, label, index,
352 esmp, disable_scatter, ps_buf_size)) != 0)
356 erp->er_label = label;
358 ef10_ev_rxlabel_init(eep, erp, label, ps_buf_size != 0);
369 EFSYS_PROBE1(fail1, efx_rc_t, rc);
378 efx_nic_t *enp = erp->er_enp;
379 efx_evq_t *eep = erp->er_eep;
380 unsigned int label = erp->er_label;
382 ef10_ev_rxlabel_fini(eep, label);
384 EFSYS_ASSERT(enp->en_rx_qcount != 0);
387 EFSYS_KMEM_FREE(enp->en_esip, sizeof (efx_rxq_t), erp);
394 _NOTE(ARGUNUSED(enp))
397 #endif /* EFSYS_OPT_HUNTINGTON || EFSYS_OPT_MEDFORD */