1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(C) 2021 Marvell.
8 /* Private functions. */
10 sso_lf_alloc(struct roc_sso *roc_sso, enum sso_lf_type lf_type, uint16_t nb_lf,
13 struct dev *dev = &roc_sso_to_sso_priv(roc_sso)->dev;
17 case SSO_LF_TYPE_HWS: {
18 struct ssow_lf_alloc_req *req;
20 req = mbox_alloc_msg_ssow_lf_alloc(dev->mbox);
25 case SSO_LF_TYPE_HWGRP: {
26 struct sso_lf_alloc_req *req;
28 req = mbox_alloc_msg_sso_lf_alloc(dev->mbox);
37 rc = mbox_process_msg(dev->mbox, rsp);
45 sso_lf_free(struct roc_sso *roc_sso, enum sso_lf_type lf_type, uint16_t nb_lf)
47 struct dev *dev = &roc_sso_to_sso_priv(roc_sso)->dev;
51 case SSO_LF_TYPE_HWS: {
52 struct ssow_lf_free_req *req;
54 req = mbox_alloc_msg_ssow_lf_free(dev->mbox);
59 case SSO_LF_TYPE_HWGRP: {
60 struct sso_lf_free_req *req;
62 req = mbox_alloc_msg_sso_lf_free(dev->mbox);
71 rc = mbox_process(dev->mbox);
79 sso_rsrc_attach(struct roc_sso *roc_sso, enum sso_lf_type lf_type,
82 struct dev *dev = &roc_sso_to_sso_priv(roc_sso)->dev;
83 struct rsrc_attach_req *req;
86 req = mbox_alloc_msg_attach_resources(dev->mbox);
93 case SSO_LF_TYPE_HWGRP:
101 if (mbox_process(dev->mbox) < 0)
108 sso_rsrc_detach(struct roc_sso *roc_sso, enum sso_lf_type lf_type)
110 struct dev *dev = &roc_sso_to_sso_priv(roc_sso)->dev;
111 struct rsrc_detach_req *req;
114 req = mbox_alloc_msg_detach_resources(dev->mbox);
118 case SSO_LF_TYPE_HWS:
121 case SSO_LF_TYPE_HWGRP:
125 return SSO_ERR_PARAM;
129 if (mbox_process(dev->mbox) < 0)
136 sso_rsrc_get(struct roc_sso *roc_sso)
138 struct dev *dev = &roc_sso_to_sso_priv(roc_sso)->dev;
139 struct free_rsrcs_rsp *rsrc_cnt;
142 mbox_alloc_msg_free_rsrc_cnt(dev->mbox);
143 rc = mbox_process_msg(dev->mbox, (void **)&rsrc_cnt);
145 plt_err("Failed to get free resource count\n");
149 roc_sso->max_hwgrp = rsrc_cnt->sso;
150 roc_sso->max_hws = rsrc_cnt->ssow;
156 sso_hws_link_modify(uint8_t hws, uintptr_t base, struct plt_bitmap *bmp,
157 uint16_t hwgrp[], uint16_t n, uint16_t enable)
173 for (j = 0; j < k; j++) {
174 mask[j] = hwgrp[i + j] | enable << 14;
175 enable ? plt_bitmap_set(bmp, hwgrp[i + j]) :
176 plt_bitmap_clear(bmp, hwgrp[i + j]);
177 plt_sso_dbg("HWS %d Linked to HWGRP %d", hws,
183 reg = mask[0] | mask[1] << 16 | mask[2] << 32 | mask[3] << 48;
184 plt_write64(reg, base + SSOW_LF_GWS_GRPMSK_CHG);
188 /* Public Functions. */
190 roc_sso_hws_base_get(struct roc_sso *roc_sso, uint8_t hws)
192 struct dev *dev = &roc_sso_to_sso_priv(roc_sso)->dev;
194 return dev->bar2 + (RVU_BLOCK_ADDR_SSOW << 20 | hws << 12);
198 roc_sso_ns_to_gw(struct roc_sso *roc_sso, uint64_t ns)
200 struct dev *dev = &roc_sso_to_sso_priv(roc_sso)->dev;
201 uint64_t current_us, current_ns, new_ns;
204 base = dev->bar2 + (RVU_BLOCK_ADDR_SSOW << 20);
205 current_us = plt_read64(base + SSOW_LF_GWS_NW_TIM);
206 /* From HRM, table 14-19:
207 * The SSOW_LF_GWS_NW_TIM[NW_TIM] period is specified in n-1 notation.
211 /* From HRM, table 14-1:
212 * SSOW_LF_GWS_NW_TIM[NW_TIM] specifies the minimum timeout. The SSO
213 * hardware times out a GET_WORK request within 2 usec of the minimum
214 * timeout specified by SSOW_LF_GWS_NW_TIM[NW_TIM].
217 current_ns = current_us * 1E3;
218 new_ns = (ns - PLT_MIN(ns, current_ns));
219 new_ns = !new_ns ? 1 : new_ns;
220 return (new_ns * plt_tsc_hz()) / 1E9;
224 roc_sso_hws_link(struct roc_sso *roc_sso, uint8_t hws, uint16_t hwgrp[],
227 struct dev *dev = &roc_sso_to_sso_priv(roc_sso)->dev;
231 sso = roc_sso_to_sso_priv(roc_sso);
232 base = dev->bar2 + (RVU_BLOCK_ADDR_SSOW << 20 | hws << 12);
233 sso_hws_link_modify(hws, base, sso->link_map[hws], hwgrp, nb_hwgrp, 1);
239 roc_sso_hws_unlink(struct roc_sso *roc_sso, uint8_t hws, uint16_t hwgrp[],
242 struct dev *dev = &roc_sso_to_sso_priv(roc_sso)->dev;
246 sso = roc_sso_to_sso_priv(roc_sso);
247 base = dev->bar2 + (RVU_BLOCK_ADDR_SSOW << 20 | hws << 12);
248 sso_hws_link_modify(hws, base, sso->link_map[hws], hwgrp, nb_hwgrp, 0);
254 roc_sso_rsrc_init(struct roc_sso *roc_sso, uint8_t nb_hws, uint16_t nb_hwgrp)
256 struct sso_lf_alloc_rsp *rsp_hwgrp;
259 if (roc_sso->max_hwgrp < nb_hwgrp)
261 if (roc_sso->max_hws < nb_hws)
264 rc = sso_rsrc_attach(roc_sso, SSO_LF_TYPE_HWS, nb_hws);
266 plt_err("Unable to attach SSO HWS LFs");
270 rc = sso_rsrc_attach(roc_sso, SSO_LF_TYPE_HWGRP, nb_hwgrp);
272 plt_err("Unable to attach SSO HWGRP LFs");
273 goto hwgrp_atch_fail;
276 rc = sso_lf_alloc(roc_sso, SSO_LF_TYPE_HWS, nb_hws, NULL);
278 plt_err("Unable to alloc SSO HWS LFs");
282 rc = sso_lf_alloc(roc_sso, SSO_LF_TYPE_HWGRP, nb_hwgrp,
283 (void **)&rsp_hwgrp);
285 plt_err("Unable to alloc SSO HWGRP Lfs");
286 goto hwgrp_alloc_fail;
289 roc_sso->xaq_buf_size = rsp_hwgrp->xaq_buf_size;
290 roc_sso->xae_waes = rsp_hwgrp->xaq_wq_entries;
291 roc_sso->iue = rsp_hwgrp->in_unit_entries;
293 roc_sso->nb_hwgrp = nb_hwgrp;
294 roc_sso->nb_hws = nb_hws;
298 sso_lf_free(roc_sso, SSO_LF_TYPE_HWS, nb_hws);
300 sso_rsrc_detach(roc_sso, SSO_LF_TYPE_HWGRP);
302 sso_rsrc_detach(roc_sso, SSO_LF_TYPE_HWS);
307 roc_sso_rsrc_fini(struct roc_sso *roc_sso)
309 if (!roc_sso->nb_hws && !roc_sso->nb_hwgrp)
312 sso_lf_free(roc_sso, SSO_LF_TYPE_HWS, roc_sso->nb_hws);
313 sso_lf_free(roc_sso, SSO_LF_TYPE_HWGRP, roc_sso->nb_hwgrp);
315 sso_rsrc_detach(roc_sso, SSO_LF_TYPE_HWS);
316 sso_rsrc_detach(roc_sso, SSO_LF_TYPE_HWGRP);
318 roc_sso->nb_hwgrp = 0;
323 roc_sso_dev_init(struct roc_sso *roc_sso)
325 struct plt_pci_device *pci_dev;
326 uint32_t link_map_sz;
331 if (roc_sso == NULL || roc_sso->pci_dev == NULL)
332 return SSO_ERR_PARAM;
334 PLT_STATIC_ASSERT(sizeof(struct sso) <= ROC_SSO_MEM_SZ);
335 sso = roc_sso_to_sso_priv(roc_sso);
336 memset(sso, 0, sizeof(*sso));
337 pci_dev = roc_sso->pci_dev;
339 rc = dev_init(&sso->dev, pci_dev);
341 plt_err("Failed to init roc device");
345 rc = sso_rsrc_get(roc_sso);
347 plt_err("Failed to get SSO resources");
353 plt_zmalloc(sizeof(struct plt_bitmap *) * roc_sso->max_hws, 0);
354 if (sso->link_map == NULL) {
355 plt_err("Failed to allocate memory for link_map array");
359 link_map_sz = plt_bitmap_get_memory_footprint(roc_sso->max_hwgrp);
360 sso->link_map_mem = plt_zmalloc(link_map_sz * roc_sso->max_hws, 0);
361 if (sso->link_map_mem == NULL) {
362 plt_err("Failed to get link_map memory");
366 link_mem = sso->link_map_mem;
367 for (i = 0; i < roc_sso->max_hws; i++) {
368 sso->link_map[i] = plt_bitmap_init(roc_sso->max_hwgrp, link_mem,
370 if (sso->link_map[i] == NULL) {
371 plt_err("Failed to allocate link map");
374 link_mem = PLT_PTR_ADD(link_mem, link_map_sz);
376 idev_sso_pffunc_set(sso->dev.pf_func);
377 sso->pci_dev = pci_dev;
378 sso->dev.drv_inited = true;
379 roc_sso->lmt_base = sso->dev.lmt_base;
383 plt_free(sso->link_map_mem);
385 rc |= dev_fini(&sso->dev, pci_dev);
391 roc_sso_dev_fini(struct roc_sso *roc_sso)
395 sso = roc_sso_to_sso_priv(roc_sso);
396 sso->dev.drv_inited = false;
398 return dev_fini(&sso->dev, sso->pci_dev);