diff options
author | Luca Boccassi <luca.boccassi@gmail.com> | 2017-11-08 14:15:11 +0000 |
---|---|---|
committer | Luca Boccassi <luca.boccassi@gmail.com> | 2017-11-08 14:45:54 +0000 |
commit | 055c52583a2794da8ba1e85a48cce3832372b12f (patch) | |
tree | 8ceb1cb78fbb46a0f341f8ee24feb3c6b5540013 /drivers/bus/fslmc/qbman/qbman_portal.c | |
parent | f239aed5e674965691846e8ce3f187dd47523689 (diff) |
New upstream version 17.11-rc3
Change-Id: I6a5baa40612fe0c20f30b5fa773a6cbbac63a685
Signed-off-by: Luca Boccassi <luca.boccassi@gmail.com>
Diffstat (limited to 'drivers/bus/fslmc/qbman/qbman_portal.c')
-rw-r--r-- | drivers/bus/fslmc/qbman/qbman_portal.c | 973 |
1 files changed, 405 insertions, 568 deletions
diff --git a/drivers/bus/fslmc/qbman/qbman_portal.c b/drivers/bus/fslmc/qbman/qbman_portal.c index dd62e9af..809770c7 100644 --- a/drivers/bus/fslmc/qbman/qbman_portal.c +++ b/drivers/bus/fslmc/qbman/qbman_portal.c @@ -69,21 +69,23 @@ /* Pre-defined attribute codes */ /*******************************/ -struct qb_attr_code code_generic_verb = QB_CODE(0, 0, 7); -struct qb_attr_code code_generic_rslt = QB_CODE(0, 8, 8); +#define QBMAN_RESPONSE_VERB_MASK 0x7f /*************************/ /* SDQCR attribute codes */ /*************************/ +#define QB_SDQCR_FC_SHIFT 29 +#define QB_SDQCR_FC_MASK 0x1 +#define QB_SDQCR_DCT_SHIFT 24 +#define QB_SDQCR_DCT_MASK 0x3 +#define QB_SDQCR_TOK_SHIFT 16 +#define QB_SDQCR_TOK_MASK 0xff +#define QB_SDQCR_SRC_SHIFT 0 +#define QB_SDQCR_SRC_MASK 0xffff + +/* opaque token for static dequeues */ +#define QMAN_SDQCR_TOKEN 0xbb -/* we put these here because at least some of them are required by - * qbman_swp_init() - */ -struct qb_attr_code code_sdqcr_dct = QB_CODE(0, 24, 2); -struct qb_attr_code code_sdqcr_fc = QB_CODE(0, 29, 1); -struct qb_attr_code code_sdqcr_tok = QB_CODE(0, 16, 8); -static struct qb_attr_code code_eq_dca_idx; -#define CODE_SDQCR_DQSRC(n) QB_CODE(0, n, 1) enum qbman_sdqcr_dct { qbman_sdqcr_dct_null = 0, qbman_sdqcr_dct_prio_ics, @@ -96,17 +98,13 @@ enum qbman_sdqcr_fc { qbman_sdqcr_fc_up_to_3 = 1 }; -struct qb_attr_code code_sdqcr_dqsrc = QB_CODE(0, 0, 16); - /* We need to keep track of which SWP triggered a pull command * so keep an array of portal IDs and use the token field to * be able to find the proper portal */ -#define MAX_QBMAN_PORTALS 35 +#define MAX_QBMAN_PORTALS 64 static struct qbman_swp *portal_idx_map[MAX_QBMAN_PORTALS]; -uint32_t qman_version; - /*********************************/ /* Portal constructor/destructor */ /*********************************/ @@ -128,7 +126,7 @@ struct qbman_swp *qbman_swp_init(const struct qbman_swp_desc *d) { int ret; uint32_t eqcr_pi; - struct qbman_swp *p = kmalloc(sizeof(*p), GFP_KERNEL); + struct qbman_swp *p = malloc(sizeof(*p)); if (!p) return NULL; @@ -138,9 +136,10 @@ struct qbman_swp *qbman_swp_init(const struct qbman_swp_desc *d) #endif p->mc.valid_bit = QB_VALID_BIT; p->sdq = 0; - qb_attr_code_encode(&code_sdqcr_dct, &p->sdq, qbman_sdqcr_dct_prio_ics); - qb_attr_code_encode(&code_sdqcr_fc, &p->sdq, qbman_sdqcr_fc_up_to_3); - qb_attr_code_encode(&code_sdqcr_tok, &p->sdq, 0xbb); + p->sdq |= qbman_sdqcr_dct_prio_ics << QB_SDQCR_DCT_SHIFT; + p->sdq |= qbman_sdqcr_fc_up_to_3 << QB_SDQCR_FC_SHIFT; + p->sdq |= QMAN_SDQCR_TOKEN << QB_SDQCR_TOK_SHIFT; + atomic_set(&p->vdq.busy, 1); p->vdq.valid_bit = QB_VALID_BIT; p->dqrr.next_idx = 0; @@ -149,25 +148,21 @@ struct qbman_swp *qbman_swp_init(const struct qbman_swp_desc *d) if ((qman_version & 0xFFFF0000) < QMAN_REV_4100) { p->dqrr.dqrr_size = 4; p->dqrr.reset_bug = 1; - /* Set size of DQRR to 4, encoded in 2 bits */ - code_eq_dca_idx = (struct qb_attr_code)QB_CODE(0, 8, 2); } else { p->dqrr.dqrr_size = 8; p->dqrr.reset_bug = 0; - /* Set size of DQRR to 8, encoded in 3 bits */ - code_eq_dca_idx = (struct qb_attr_code)QB_CODE(0, 8, 3); } ret = qbman_swp_sys_init(&p->sys, d, p->dqrr.dqrr_size); if (ret) { - kfree(p); + free(p); pr_err("qbman_swp_sys_init() failed %d\n", ret); return NULL; } /* SDQCR needs to be initialized to 0 when no channels are * being dequeued from or else the QMan HW will indicate an * error. The values that were calculated above will be - * applied when dequeues from a specific channel are enabled + * applied when dequeues from a specific channel are enabled. */ qbman_cinh_write(&p->sys, QBMAN_CINH_SWP_SDQCR, 0); eqcr_pi = qbman_cinh_read(&p->sys, QBMAN_CINH_SWP_EQCR_PI); @@ -188,7 +183,7 @@ void qbman_swp_finish(struct qbman_swp *p) #endif qbman_swp_sys_finish(&p->sys); portal_idx_map[p->desc.idx] = NULL; - kfree(p); + free(p); } const struct qbman_swp_desc *qbman_swp_get_desc(struct qbman_swp *p) @@ -282,9 +277,9 @@ void *qbman_swp_mc_start(struct qbman_swp *p) return ret; } -void qbman_swp_mc_submit(struct qbman_swp *p, void *cmd, uint32_t cmd_verb) +void qbman_swp_mc_submit(struct qbman_swp *p, void *cmd, uint8_t cmd_verb) { - uint32_t *v = cmd; + uint8_t *v = cmd; #ifdef QBMAN_CHECKING QBMAN_BUG_ON(!(p->mc.check != swp_mc_can_submit)); #endif @@ -325,35 +320,22 @@ void *qbman_swp_mc_result(struct qbman_swp *p) /* Enqueue */ /***********/ -/* These should be const, eventually */ -static struct qb_attr_code code_eq_cmd = QB_CODE(0, 0, 2); -static struct qb_attr_code code_eq_eqdi = QB_CODE(0, 3, 1); -static struct qb_attr_code code_eq_dca_en = QB_CODE(0, 15, 1); -static struct qb_attr_code code_eq_dca_pk = QB_CODE(0, 14, 1); -/* Can't set code_eq_dca_idx width. Need qman version. Read at runtime */ -static struct qb_attr_code code_eq_orp_en = QB_CODE(0, 2, 1); -static struct qb_attr_code code_eq_orp_is_nesn = QB_CODE(0, 31, 1); -static struct qb_attr_code code_eq_orp_nlis = QB_CODE(0, 30, 1); -static struct qb_attr_code code_eq_orp_seqnum = QB_CODE(0, 16, 14); -static struct qb_attr_code code_eq_opr_id = QB_CODE(1, 0, 16); -static struct qb_attr_code code_eq_tgt_id = QB_CODE(2, 0, 24); -/* static struct qb_attr_code code_eq_tag = QB_CODE(3, 0, 32); */ -static struct qb_attr_code code_eq_qd_en = QB_CODE(0, 4, 1); -static struct qb_attr_code code_eq_qd_bin = QB_CODE(4, 0, 16); -static struct qb_attr_code code_eq_qd_pri = QB_CODE(4, 16, 4); -static struct qb_attr_code code_eq_rsp_stash = QB_CODE(5, 16, 1); -static struct qb_attr_code code_eq_rsp_id = QB_CODE(5, 24, 8); -static struct qb_attr_code code_eq_rsp_lo = QB_CODE(6, 0, 32); - -enum qbman_eq_cmd_e { - /* No enqueue, primarily for plugging ORP gaps for dropped frames */ - qbman_eq_cmd_empty, - /* DMA an enqueue response once complete */ - qbman_eq_cmd_respond, - /* DMA an enqueue response only if the enqueue fails */ - qbman_eq_cmd_respond_reject +#define QB_ENQUEUE_CMD_OPTIONS_SHIFT 0 +enum qb_enqueue_commands { + enqueue_empty = 0, + enqueue_response_always = 1, + enqueue_rejects_to_fq = 2 }; +#define QB_ENQUEUE_CMD_EC_OPTION_MASK 0x3 +#define QB_ENQUEUE_CMD_ORP_ENABLE_SHIFT 2 +#define QB_ENQUEUE_CMD_IRQ_ON_DISPATCH_SHIFT 3 +#define QB_ENQUEUE_CMD_TARGET_TYPE_SHIFT 4 +#define QB_ENQUEUE_CMD_DCA_PK_SHIFT 6 +#define QB_ENQUEUE_CMD_DCA_EN_SHIFT 7 +#define QB_ENQUEUE_CMD_NLIS_SHIFT 14 +#define QB_ENQUEUE_CMD_IS_NESN_SHIFT 15 + void qbman_eq_desc_clear(struct qbman_eq_desc *d) { memset(d, 0, sizeof(*d)); @@ -361,115 +343,110 @@ void qbman_eq_desc_clear(struct qbman_eq_desc *d) void qbman_eq_desc_set_no_orp(struct qbman_eq_desc *d, int respond_success) { - uint32_t *cl = qb_cl(d); - - qb_attr_code_encode(&code_eq_orp_en, cl, 0); - qb_attr_code_encode(&code_eq_cmd, cl, - respond_success ? qbman_eq_cmd_respond : - qbman_eq_cmd_respond_reject); + d->eq.verb &= ~(1 << QB_ENQUEUE_CMD_ORP_ENABLE_SHIFT); + if (respond_success) + d->eq.verb |= enqueue_response_always; + else + d->eq.verb |= enqueue_rejects_to_fq; } void qbman_eq_desc_set_orp(struct qbman_eq_desc *d, int respond_success, - uint32_t opr_id, uint32_t seqnum, int incomplete) + uint16_t opr_id, uint16_t seqnum, int incomplete) { - uint32_t *cl = qb_cl(d); + d->eq.verb |= 1 << QB_ENQUEUE_CMD_ORP_ENABLE_SHIFT; + if (respond_success) + d->eq.verb |= enqueue_response_always; + else + d->eq.verb |= enqueue_rejects_to_fq; - qb_attr_code_encode(&code_eq_orp_en, cl, 1); - qb_attr_code_encode(&code_eq_cmd, cl, - respond_success ? qbman_eq_cmd_respond : - qbman_eq_cmd_respond_reject); - qb_attr_code_encode(&code_eq_opr_id, cl, opr_id); - qb_attr_code_encode(&code_eq_orp_seqnum, cl, seqnum); - qb_attr_code_encode(&code_eq_orp_nlis, cl, !!incomplete); + d->eq.orpid = opr_id; + d->eq.seqnum = seqnum; + if (incomplete) + d->eq.seqnum |= 1 << QB_ENQUEUE_CMD_NLIS_SHIFT; + else + d->eq.seqnum &= ~(1 << QB_ENQUEUE_CMD_NLIS_SHIFT); } -void qbman_eq_desc_set_orp_hole(struct qbman_eq_desc *d, uint32_t opr_id, - uint32_t seqnum) +void qbman_eq_desc_set_orp_hole(struct qbman_eq_desc *d, uint16_t opr_id, + uint16_t seqnum) { - uint32_t *cl = qb_cl(d); - - qb_attr_code_encode(&code_eq_orp_en, cl, 1); - qb_attr_code_encode(&code_eq_cmd, cl, qbman_eq_cmd_empty); - qb_attr_code_encode(&code_eq_opr_id, cl, opr_id); - qb_attr_code_encode(&code_eq_orp_seqnum, cl, seqnum); - qb_attr_code_encode(&code_eq_orp_nlis, cl, 0); - qb_attr_code_encode(&code_eq_orp_is_nesn, cl, 0); + d->eq.verb |= 1 << QB_ENQUEUE_CMD_ORP_ENABLE_SHIFT; + d->eq.verb &= ~QB_ENQUEUE_CMD_EC_OPTION_MASK; + d->eq.orpid = opr_id; + d->eq.seqnum = seqnum; + d->eq.seqnum &= ~(1 << QB_ENQUEUE_CMD_NLIS_SHIFT); + d->eq.seqnum &= ~(1 << QB_ENQUEUE_CMD_IS_NESN_SHIFT); } -void qbman_eq_desc_set_orp_nesn(struct qbman_eq_desc *d, uint32_t opr_id, - uint32_t seqnum) +void qbman_eq_desc_set_orp_nesn(struct qbman_eq_desc *d, uint16_t opr_id, + uint16_t seqnum) { - uint32_t *cl = qb_cl(d); - - qb_attr_code_encode(&code_eq_orp_en, cl, 1); - qb_attr_code_encode(&code_eq_cmd, cl, qbman_eq_cmd_empty); - qb_attr_code_encode(&code_eq_opr_id, cl, opr_id); - qb_attr_code_encode(&code_eq_orp_seqnum, cl, seqnum); - qb_attr_code_encode(&code_eq_orp_nlis, cl, 0); - qb_attr_code_encode(&code_eq_orp_is_nesn, cl, 1); + d->eq.verb |= 1 << QB_ENQUEUE_CMD_ORP_ENABLE_SHIFT; + d->eq.verb &= ~QB_ENQUEUE_CMD_EC_OPTION_MASK; + d->eq.orpid = opr_id; + d->eq.seqnum = seqnum; + d->eq.seqnum &= ~(1 << QB_ENQUEUE_CMD_NLIS_SHIFT); + d->eq.seqnum |= 1 << QB_ENQUEUE_CMD_IS_NESN_SHIFT; } void qbman_eq_desc_set_response(struct qbman_eq_desc *d, dma_addr_t storage_phys, int stash) { - uint32_t *cl = qb_cl(d); - - qb_attr_code_encode_64(&code_eq_rsp_lo, (uint64_t *)cl, storage_phys); - qb_attr_code_encode(&code_eq_rsp_stash, cl, !!stash); + d->eq.rsp_addr = storage_phys; + d->eq.wae = stash; } void qbman_eq_desc_set_token(struct qbman_eq_desc *d, uint8_t token) { - uint32_t *cl = qb_cl(d); - - qb_attr_code_encode(&code_eq_rsp_id, cl, (uint32_t)token); + d->eq.rspid = token; } void qbman_eq_desc_set_fq(struct qbman_eq_desc *d, uint32_t fqid) { - uint32_t *cl = qb_cl(d); - - qb_attr_code_encode(&code_eq_qd_en, cl, 0); - qb_attr_code_encode(&code_eq_tgt_id, cl, fqid); + d->eq.verb &= ~(1 << QB_ENQUEUE_CMD_TARGET_TYPE_SHIFT); + d->eq.tgtid = fqid; } void qbman_eq_desc_set_qd(struct qbman_eq_desc *d, uint32_t qdid, - uint32_t qd_bin, uint32_t qd_prio) + uint16_t qd_bin, uint8_t qd_prio) { - uint32_t *cl = qb_cl(d); - - qb_attr_code_encode(&code_eq_qd_en, cl, 1); - qb_attr_code_encode(&code_eq_tgt_id, cl, qdid); - qb_attr_code_encode(&code_eq_qd_bin, cl, qd_bin); - qb_attr_code_encode(&code_eq_qd_pri, cl, qd_prio); + d->eq.verb |= 1 << QB_ENQUEUE_CMD_TARGET_TYPE_SHIFT; + d->eq.tgtid = qdid; + d->eq.qdbin = qd_bin; + d->eq.qpri = qd_prio; } void qbman_eq_desc_set_eqdi(struct qbman_eq_desc *d, int enable) { - uint32_t *cl = qb_cl(d); - - qb_attr_code_encode(&code_eq_eqdi, cl, !!enable); + if (enable) + d->eq.verb |= 1 << QB_ENQUEUE_CMD_IRQ_ON_DISPATCH_SHIFT; + else + d->eq.verb &= ~(1 << QB_ENQUEUE_CMD_IRQ_ON_DISPATCH_SHIFT); } void qbman_eq_desc_set_dca(struct qbman_eq_desc *d, int enable, - uint32_t dqrr_idx, int park) + uint8_t dqrr_idx, int park) { - uint32_t *cl = qb_cl(d); - - qb_attr_code_encode(&code_eq_dca_en, cl, !!enable); if (enable) { - qb_attr_code_encode(&code_eq_dca_pk, cl, !!park); - qb_attr_code_encode(&code_eq_dca_idx, cl, dqrr_idx); + d->eq.dca = dqrr_idx; + if (park) + d->eq.dca |= 1 << QB_ENQUEUE_CMD_DCA_PK_SHIFT; + else + d->eq.dca &= ~(1 << QB_ENQUEUE_CMD_DCA_PK_SHIFT); + d->eq.dca |= 1 << QB_ENQUEUE_CMD_DCA_EN_SHIFT; + } else { + d->eq.dca &= ~(1 << QB_ENQUEUE_CMD_DCA_EN_SHIFT); } } #define EQAR_IDX(eqar) ((eqar) & 0x7) #define EQAR_VB(eqar) ((eqar) & 0x80) #define EQAR_SUCCESS(eqar) ((eqar) & 0x100) + static int qbman_swp_enqueue_array_mode(struct qbman_swp *s, const struct qbman_eq_desc *d, - const struct qbman_fd *fd) + const struct qbman_fd *fd) { uint32_t *p; const uint32_t *cl = qb_cl(d); @@ -479,20 +456,20 @@ static int qbman_swp_enqueue_array_mode(struct qbman_swp *s, if (!EQAR_SUCCESS(eqar)) return -EBUSY; p = qbman_cena_write_start_wo_shadow(&s->sys, - QBMAN_CENA_SWP_EQCR(EQAR_IDX(eqar))); - word_copy(&p[1], &cl[1], 7); - word_copy(&p[8], fd, sizeof(*fd) >> 2); + QBMAN_CENA_SWP_EQCR(EQAR_IDX(eqar))); + memcpy(&p[1], &cl[1], 28); + memcpy(&p[8], fd, sizeof(*fd)); /* Set the verb byte, have to substitute in the valid-bit */ lwsync(); p[0] = cl[0] | EQAR_VB(eqar); qbman_cena_write_complete_wo_shadow(&s->sys, - QBMAN_CENA_SWP_EQCR(EQAR_IDX(eqar))); + QBMAN_CENA_SWP_EQCR(EQAR_IDX(eqar))); return 0; } static int qbman_swp_enqueue_ring_mode(struct qbman_swp *s, const struct qbman_eq_desc *d, - const struct qbman_fd *fd) + const struct qbman_fd *fd) { uint32_t *p; const uint32_t *cl = qb_cl(d); @@ -511,31 +488,44 @@ static int qbman_swp_enqueue_ring_mode(struct qbman_swp *s, } p = qbman_cena_write_start_wo_shadow(&s->sys, - QBMAN_CENA_SWP_EQCR(s->eqcr.pi & 7)); - word_copy(&p[1], &cl[1], 7); - word_copy(&p[8], fd, sizeof(*fd) >> 2); + QBMAN_CENA_SWP_EQCR(s->eqcr.pi & 7)); + memcpy(&p[1], &cl[1], 28); + memcpy(&p[8], fd, sizeof(*fd)); lwsync(); + /* Set the verb byte, have to substitute in the valid-bit */ p[0] = cl[0] | s->eqcr.pi_vb; qbman_cena_write_complete_wo_shadow(&s->sys, - QBMAN_CENA_SWP_EQCR(s->eqcr.pi & 7)); + QBMAN_CENA_SWP_EQCR(s->eqcr.pi & 7)); s->eqcr.pi++; s->eqcr.pi &= 0xF; s->eqcr.available--; if (!(s->eqcr.pi & 7)) s->eqcr.pi_vb ^= QB_VALID_BIT; + return 0; } -int qbman_swp_fill_ring(struct qbman_swp *s, - const struct qbman_eq_desc *d, - const struct qbman_fd *fd, - __attribute__((unused)) uint8_t burst_index) +int qbman_swp_enqueue(struct qbman_swp *s, const struct qbman_eq_desc *d, + const struct qbman_fd *fd) +{ + if (s->sys.eqcr_mode == qman_eqcr_vb_array) + return qbman_swp_enqueue_array_mode(s, d, fd); + else /* Use ring mode by default */ + return qbman_swp_enqueue_ring_mode(s, d, fd); +} + +int qbman_swp_enqueue_multiple(struct qbman_swp *s, + const struct qbman_eq_desc *d, + const struct qbman_fd *fd, + int num_frames) { uint32_t *p; const uint32_t *cl = qb_cl(d); - uint32_t eqcr_ci; + uint32_t eqcr_ci, eqcr_pi; uint8_t diff; + int i, num_enqueued = 0; + uint64_t addr_cena; if (!s->eqcr.available) { eqcr_ci = s->eqcr.ci; @@ -545,64 +535,58 @@ int qbman_swp_fill_ring(struct qbman_swp *s, eqcr_ci, s->eqcr.ci); s->eqcr.available += diff; if (!diff) - return -EBUSY; + return 0; } - p = qbman_cena_write_start_wo_shadow(&s->sys, - QBMAN_CENA_SWP_EQCR((s->eqcr.pi/* +burst_index */) & 7)); - /* word_copy(&p[1], &cl[1], 7); */ - memcpy(&p[1], &cl[1], 7 * 4); - /* word_copy(&p[8], fd, sizeof(*fd) >> 2); */ - memcpy(&p[8], fd, sizeof(struct qbman_fd)); - - /* lwsync(); */ - p[0] = cl[0] | s->eqcr.pi_vb; - - s->eqcr.pi++; - s->eqcr.pi &= 0xF; - s->eqcr.available--; - if (!(s->eqcr.pi & 7)) - s->eqcr.pi_vb ^= QB_VALID_BIT; - - return 0; -} -int qbman_swp_flush_ring(struct qbman_swp *s) -{ - void *ptr = s->sys.addr_cena; + eqcr_pi = s->eqcr.pi; + num_enqueued = (s->eqcr.available < num_frames) ? + s->eqcr.available : num_frames; + s->eqcr.available -= num_enqueued; + /* Fill in the EQCR ring */ + for (i = 0; i < num_enqueued; i++) { + p = qbman_cena_write_start_wo_shadow(&s->sys, + QBMAN_CENA_SWP_EQCR(eqcr_pi & 7)); + memcpy(&p[1], &cl[1], 28); + memcpy(&p[8], &fd[i], sizeof(*fd)); + eqcr_pi++; + eqcr_pi &= 0xF; + } - dcbf((uint64_t)ptr); - dcbf((uint64_t)ptr + 0x40); - dcbf((uint64_t)ptr + 0x80); - dcbf((uint64_t)ptr + 0xc0); - dcbf((uint64_t)ptr + 0x100); - dcbf((uint64_t)ptr + 0x140); - dcbf((uint64_t)ptr + 0x180); - dcbf((uint64_t)ptr + 0x1c0); + lwsync(); - return 0; -} + /* Set the verb byte, have to substitute in the valid-bit */ + eqcr_pi = s->eqcr.pi; + for (i = 0; i < num_enqueued; i++) { + p = qbman_cena_write_start_wo_shadow(&s->sys, + QBMAN_CENA_SWP_EQCR(eqcr_pi & 7)); + p[0] = cl[0] | s->eqcr.pi_vb; + eqcr_pi++; + eqcr_pi &= 0xF; + if (!(eqcr_pi & 7)) + s->eqcr.pi_vb ^= QB_VALID_BIT; + } -void qbman_sync(void) -{ - lwsync(); -} + /* Flush all the cacheline without load/store in between */ + eqcr_pi = s->eqcr.pi; + addr_cena = (uint64_t)s->sys.addr_cena; + for (i = 0; i < num_enqueued; i++) { + dcbf((uint64_t *)(addr_cena + + QBMAN_CENA_SWP_EQCR(eqcr_pi & 7))); + eqcr_pi++; + eqcr_pi &= 0xF; + } + s->eqcr.pi = eqcr_pi; -int qbman_swp_enqueue(struct qbman_swp *s, const struct qbman_eq_desc *d, - const struct qbman_fd *fd) -{ - if (s->sys.eqcr_mode == qman_eqcr_vb_array) - return qbman_swp_enqueue_array_mode(s, d, fd); - else /* Use ring mode by default */ - return qbman_swp_enqueue_ring_mode(s, d, fd); + return num_enqueued; } -int qbman_swp_enqueue_multiple_eqdesc(struct qbman_swp *s, - const struct qbman_eq_desc *d, - const struct qbman_fd *fd, - int num_frames) +int qbman_swp_enqueue_multiple_desc(struct qbman_swp *s, + const struct qbman_eq_desc *d, + const struct qbman_fd *fd, + int num_frames) { uint32_t *p; - const uint32_t *cl = qb_cl(d); + const uint32_t *cl; uint32_t eqcr_ci, eqcr_pi; uint8_t diff; int i, num_enqueued = 0; @@ -627,29 +611,26 @@ int qbman_swp_enqueue_multiple_eqdesc(struct qbman_swp *s, for (i = 0; i < num_enqueued; i++) { p = qbman_cena_write_start_wo_shadow(&s->sys, QBMAN_CENA_SWP_EQCR(eqcr_pi & 7)); + cl = qb_cl(&d[i]); memcpy(&p[1], &cl[1], 28); memcpy(&p[8], &fd[i], sizeof(*fd)); eqcr_pi++; eqcr_pi &= 0xF; - /*Pointing to the next enqueue descriptor*/ - cl += (sizeof(struct qbman_eq_desc) / sizeof(uint32_t)); } lwsync(); /* Set the verb byte, have to substitute in the valid-bit */ eqcr_pi = s->eqcr.pi; - cl = qb_cl(d); for (i = 0; i < num_enqueued; i++) { p = qbman_cena_write_start_wo_shadow(&s->sys, QBMAN_CENA_SWP_EQCR(eqcr_pi & 7)); + cl = qb_cl(&d[i]); p[0] = cl[0] | s->eqcr.pi_vb; eqcr_pi++; eqcr_pi &= 0xF; if (!(eqcr_pi & 7)) s->eqcr.pi_vb ^= QB_VALID_BIT; - /*Pointing to the next enqueue descriptor*/ - cl += (sizeof(struct qbman_eq_desc) / sizeof(uint32_t)); } /* Flush all the cacheline without load/store in between */ @@ -672,23 +653,26 @@ int qbman_swp_enqueue_multiple_eqdesc(struct qbman_swp *s, void qbman_swp_push_get(struct qbman_swp *s, uint8_t channel_idx, int *enabled) { - struct qb_attr_code code = CODE_SDQCR_DQSRC(channel_idx); + uint16_t src = (s->sdq >> QB_SDQCR_SRC_SHIFT) & QB_SDQCR_SRC_MASK; QBMAN_BUG_ON(channel_idx > 15); - *enabled = (int)qb_attr_code_decode(&code, &s->sdq); + *enabled = src | (1 << channel_idx); } void qbman_swp_push_set(struct qbman_swp *s, uint8_t channel_idx, int enable) { uint16_t dqsrc; - struct qb_attr_code code = CODE_SDQCR_DQSRC(channel_idx); QBMAN_BUG_ON(channel_idx > 15); - qb_attr_code_encode(&code, &s->sdq, !!enable); + if (enable) + s->sdq |= 1 << channel_idx; + else + s->sdq &= ~(1 << channel_idx); + /* Read make the complete src map. If no channels are enabled * the SDQCR must be 0 or else QMan will assert errors */ - dqsrc = (uint16_t)qb_attr_code_decode(&code_sdqcr_dqsrc, &s->sdq); + dqsrc = (s->sdq >> QB_SDQCR_SRC_SHIFT) & QB_SDQCR_SRC_MASK; if (dqsrc != 0) qbman_cinh_write(&s->sys, QBMAN_CINH_SWP_SDQCR, s->sdq); else @@ -700,14 +684,10 @@ void qbman_swp_push_set(struct qbman_swp *s, uint8_t channel_idx, int enable) /***************************/ /* These should be const, eventually */ -static struct qb_attr_code code_pull_dct = QB_CODE(0, 0, 2); -static struct qb_attr_code code_pull_dt = QB_CODE(0, 2, 2); -static struct qb_attr_code code_pull_rls = QB_CODE(0, 4, 1); -static struct qb_attr_code code_pull_stash = QB_CODE(0, 5, 1); -static struct qb_attr_code code_pull_numframes = QB_CODE(0, 8, 4); -static struct qb_attr_code code_pull_token = QB_CODE(0, 16, 8); -static struct qb_attr_code code_pull_dqsource = QB_CODE(1, 0, 24); -static struct qb_attr_code code_pull_rsp_lo = QB_CODE(2, 0, 32); +#define QB_VDQCR_VERB_DCT_SHIFT 0 +#define QB_VDQCR_VERB_DT_SHIFT 2 +#define QB_VDQCR_VERB_RLS_SHIFT 4 +#define QB_VDQCR_VERB_WAE_SHIFT 5 enum qb_pull_dt_e { qb_pull_dt_channel, @@ -725,63 +705,52 @@ void qbman_pull_desc_set_storage(struct qbman_pull_desc *d, dma_addr_t storage_phys, int stash) { - uint32_t *cl = qb_cl(d); - /* Squiggle the pointer 'storage' into the extra 2 words of the - * descriptor (which aren't copied to the hw command) - */ - *(void **)&cl[4] = storage; + d->pull.rsp_addr_virt = (uint64_t)storage; + if (!storage) { - qb_attr_code_encode(&code_pull_rls, cl, 0); + d->pull.verb &= ~(1 << QB_VDQCR_VERB_RLS_SHIFT); return; } - qb_attr_code_encode(&code_pull_rls, cl, 1); - qb_attr_code_encode(&code_pull_stash, cl, !!stash); - qb_attr_code_encode_64(&code_pull_rsp_lo, (uint64_t *)cl, storage_phys); + d->pull.verb |= 1 << QB_VDQCR_VERB_RLS_SHIFT; + if (stash) + d->pull.verb |= 1 << QB_VDQCR_VERB_WAE_SHIFT; + else + d->pull.verb &= ~(1 << QB_VDQCR_VERB_WAE_SHIFT); + + d->pull.rsp_addr = storage_phys; } void qbman_pull_desc_set_numframes(struct qbman_pull_desc *d, uint8_t numframes) { - uint32_t *cl = qb_cl(d); - - QBMAN_BUG_ON(!numframes || (numframes > 16)); - qb_attr_code_encode(&code_pull_numframes, cl, - (uint32_t)(numframes - 1)); + d->pull.numf = numframes - 1; } void qbman_pull_desc_set_token(struct qbman_pull_desc *d, uint8_t token) { - uint32_t *cl = qb_cl(d); - - qb_attr_code_encode(&code_pull_token, cl, token); + d->pull.tok = token; } void qbman_pull_desc_set_fq(struct qbman_pull_desc *d, uint32_t fqid) { - uint32_t *cl = qb_cl(d); - - qb_attr_code_encode(&code_pull_dct, cl, 1); - qb_attr_code_encode(&code_pull_dt, cl, qb_pull_dt_framequeue); - qb_attr_code_encode(&code_pull_dqsource, cl, fqid); + d->pull.verb |= 1 << QB_VDQCR_VERB_DCT_SHIFT; + d->pull.verb |= qb_pull_dt_framequeue << QB_VDQCR_VERB_DT_SHIFT; + d->pull.dq_src = fqid; } void qbman_pull_desc_set_wq(struct qbman_pull_desc *d, uint32_t wqid, enum qbman_pull_type_e dct) { - uint32_t *cl = qb_cl(d); - - qb_attr_code_encode(&code_pull_dct, cl, dct); - qb_attr_code_encode(&code_pull_dt, cl, qb_pull_dt_workqueue); - qb_attr_code_encode(&code_pull_dqsource, cl, wqid); + d->pull.verb |= dct << QB_VDQCR_VERB_DCT_SHIFT; + d->pull.verb |= qb_pull_dt_workqueue << QB_VDQCR_VERB_DT_SHIFT; + d->pull.dq_src = wqid; } void qbman_pull_desc_set_channel(struct qbman_pull_desc *d, uint32_t chid, enum qbman_pull_type_e dct) { - uint32_t *cl = qb_cl(d); - - qb_attr_code_encode(&code_pull_dct, cl, dct); - qb_attr_code_encode(&code_pull_dt, cl, qb_pull_dt_channel); - qb_attr_code_encode(&code_pull_dqsource, cl, chid); + d->pull.verb |= dct << QB_VDQCR_VERB_DCT_SHIFT; + d->pull.verb |= qb_pull_dt_channel << QB_VDQCR_VERB_DT_SHIFT; + d->pull.dq_src = chid; } int qbman_swp_pull(struct qbman_swp *s, struct qbman_pull_desc *d) @@ -793,18 +762,18 @@ int qbman_swp_pull(struct qbman_swp *s, struct qbman_pull_desc *d) atomic_inc(&s->vdq.busy); return -EBUSY; } - s->vdq.storage = *(void **)&cl[4]; - /* We use portal index +1 as token so that 0 still indicates - * that the result isn't valid yet. - */ - qb_attr_code_encode(&code_pull_token, cl, s->desc.idx + 1); + + d->pull.tok = s->sys.idx + 1; + s->vdq.storage = (void *)d->pull.rsp_addr_virt; p = qbman_cena_write_start_wo_shadow(&s->sys, QBMAN_CENA_SWP_VDQCR); - word_copy(&p[1], &cl[1], 3); + memcpy(&p[1], &cl[1], 12); + /* Set the verb byte, have to substitute in the valid-bit */ lwsync(); p[0] = cl[0] | s->vdq.valid_bit; s->vdq.valid_bit ^= QB_VALID_BIT; qbman_cena_write_complete_wo_shadow(&s->sys, QBMAN_CENA_SWP_VDQCR); + return 0; } @@ -812,16 +781,7 @@ int qbman_swp_pull(struct qbman_swp *s, struct qbman_pull_desc *d) /* Polling DQRR */ /****************/ -static struct qb_attr_code code_dqrr_verb = QB_CODE(0, 0, 8); -static struct qb_attr_code code_dqrr_response = QB_CODE(0, 0, 7); -static struct qb_attr_code code_dqrr_stat = QB_CODE(0, 8, 8); -static struct qb_attr_code code_dqrr_seqnum = QB_CODE(0, 16, 14); -static struct qb_attr_code code_dqrr_odpid = QB_CODE(1, 0, 16); -/* static struct qb_attr_code code_dqrr_tok = QB_CODE(1, 24, 8); */ -static struct qb_attr_code code_dqrr_fqid = QB_CODE(2, 0, 24); -static struct qb_attr_code code_dqrr_byte_count = QB_CODE(4, 0, 32); -static struct qb_attr_code code_dqrr_frame_count = QB_CODE(5, 0, 24); -static struct qb_attr_code code_dqrr_ctx_lo = QB_CODE(6, 0, 32); +#define QMAN_DQRR_PI_MASK 0xf #define QBMAN_RESULT_DQ 0x60 #define QBMAN_RESULT_FQRN 0x21 @@ -834,8 +794,6 @@ static struct qb_attr_code code_dqrr_ctx_lo = QB_CODE(6, 0, 32); #define QBMAN_RESULT_BPSCN 0x29 #define QBMAN_RESULT_CSCN_WQ 0x2a -static struct qb_attr_code code_dqpi_pi = QB_CODE(0, 0, 4); - /* NULL return if there are no unconsumed DQRR entries. Returns a DQRR entry * only once, so repeated calls can return a sequence of DQRR entries, without * requiring they be consumed immediately or in any particular order. @@ -845,8 +803,7 @@ const struct qbman_result *qbman_swp_dqrr_next(struct qbman_swp *s) uint32_t verb; uint32_t response_verb; uint32_t flags; - const struct qbman_result *dq; - const uint32_t *p; + const struct qbman_result *p; /* Before using valid-bit to detect if something is there, we have to * handle the case of the DQRR reset bug... @@ -859,11 +816,13 @@ const struct qbman_result *qbman_swp_dqrr_next(struct qbman_swp *s) * will be much less efficient than all subsequent trips around * it... */ - uint32_t dqpi = qbman_cinh_read(&s->sys, QBMAN_CINH_SWP_DQPI); - uint32_t pi = qb_attr_code_decode(&code_dqpi_pi, &dqpi); + uint8_t pi = qbman_cinh_read(&s->sys, QBMAN_CINH_SWP_DQPI) & + QMAN_DQRR_PI_MASK; + /* there are new entries if pi != next_idx */ if (pi == s->dqrr.next_idx) return NULL; + /* if next_idx is/was the last ring index, and 'pi' is * different, we can disable the workaround as all the ring * entries have now been DMA'd to so valid-bit checking is @@ -878,12 +837,12 @@ const struct qbman_result *qbman_swp_dqrr_next(struct qbman_swp *s) s->dqrr.reset_bug = 0; } qbman_cena_invalidate_prefetch(&s->sys, - QBMAN_CENA_SWP_DQRR(s->dqrr.next_idx)); + QBMAN_CENA_SWP_DQRR(s->dqrr.next_idx)); } - dq = qbman_cena_read_wo_shadow(&s->sys, - QBMAN_CENA_SWP_DQRR(s->dqrr.next_idx)); - p = qb_cl(dq); - verb = qb_attr_code_decode(&code_dqrr_verb, p); + p = qbman_cena_read_wo_shadow(&s->sys, + QBMAN_CENA_SWP_DQRR(s->dqrr.next_idx)); + verb = p->dq.verb; + /* If the valid-bit isn't of the expected polarity, nothing there. Note, * in the DQRR reset bug workaround, we shouldn't need to skip these * check, because we've already determined that a new entry is available @@ -903,16 +862,16 @@ const struct qbman_result *qbman_swp_dqrr_next(struct qbman_swp *s) s->dqrr.valid_bit ^= QB_VALID_BIT; } /* If this is the final response to a volatile dequeue command - * indicate that the vdq is no longer busy. + * indicate that the vdq is no longer busy */ - flags = qbman_result_DQ_flags(dq); - response_verb = qb_attr_code_decode(&code_dqrr_response, &verb); + flags = p->dq.stat; + response_verb = verb & QBMAN_RESPONSE_VERB_MASK; if ((response_verb == QBMAN_RESULT_DQ) && (flags & QBMAN_DQ_STAT_VOLATILE) && (flags & QBMAN_DQ_STAT_EXPIRED)) atomic_inc(&s->vdq.busy); - return dq; + return p; } /* Consume DQRR entries previously returned from qbman_swp_dqrr_next(). */ @@ -925,80 +884,69 @@ void qbman_swp_dqrr_consume(struct qbman_swp *s, /*********************************/ /* Polling user-provided storage */ /*********************************/ - -int qbman_result_has_new_result(__attribute__((unused)) struct qbman_swp *s, - const struct qbman_result *dq) +int qbman_result_has_new_result(struct qbman_swp *s, + struct qbman_result *dq) { - /* To avoid converting the little-endian DQ entry to host-endian prior - * to us knowing whether there is a valid entry or not (and run the - * risk of corrupting the incoming hardware LE write), we detect in - * hardware endianness rather than host. This means we need a different - * "code" depending on whether we are BE or LE in software, which is - * where DQRR_TOK_OFFSET comes in... + if (dq->dq.tok == 0) + return 0; + + /* + * Set token to be 0 so we will detect change back to 1 + * next time the looping is traversed. Const is cast away here + * as we want users to treat the dequeue responses as read only. */ - static struct qb_attr_code code_dqrr_tok_detect = - QB_CODE(0, DQRR_TOK_OFFSET, 8); - /* The user trying to poll for a result treats "dq" as const. It is - * however the same address that was provided to us non-const in the - * first place, for directing hardware DMA to. So we can cast away the - * const because it is mutable from our perspective. + ((struct qbman_result *)dq)->dq.tok = 0; + + /* + * VDQCR "no longer busy" hook - not quite the same as DQRR, because the + * fact "VDQCR" shows busy doesn't mean that we hold the result that + * makes it available. Eg. we may be looking at our 10th dequeue result, + * having released VDQCR after the 1st result and it is now busy due to + * some other command! */ - uint32_t *p = (uint32_t *)(unsigned long)qb_cl(dq); - uint32_t token; + if (s->vdq.storage == dq) { + s->vdq.storage = NULL; + atomic_inc(&s->vdq.busy); + } + + return 1; +} - token = qb_attr_code_decode(&code_dqrr_tok_detect, &p[1]); - if (token == 0) +int qbman_check_new_result(struct qbman_result *dq) +{ + if (dq->dq.tok == 0) return 0; - /* Entry is valid - overwrite token back to 0 so - * a) If this memory is reused tokesn will be 0 - * b) If someone calls "has_new_result()" again on this entry it - * will not appear to be new - */ - qb_attr_code_encode(&code_dqrr_tok_detect, &p[1], 0); - /* Only now do we convert from hardware to host endianness. Also, as we - * are returning success, the user has promised not to call us again, so - * there's no risk of us converting the endianness twice... + /* + * Set token to be 0 so we will detect change back to 1 + * next time the looping is traversed. Const is cast away here + * as we want users to treat the dequeue responses as read only. */ - make_le32_n(p, 16); + ((struct qbman_result *)dq)->dq.tok = 0; + return 1; } -int qbman_check_command_complete(struct qbman_swp *s, - const struct qbman_result *dq) +int qbman_check_command_complete(struct qbman_result *dq) { - /* To avoid converting the little-endian DQ entry to host-endian prior - * to us knowing whether there is a valid entry or not (and run the - * risk of corrupting the incoming hardware LE write), we detect in - * hardware endianness rather than host. This means we need a different - * "code" depending on whether we are BE or LE in software, which is - * where DQRR_TOK_OFFSET comes in... - */ - static struct qb_attr_code code_dqrr_tok_detect = - QB_CODE(0, DQRR_TOK_OFFSET, 8); - /* The user trying to poll for a result treats "dq" as const. It is - * however the same address that was provided to us non-const in the - * first place, for directing hardware DMA to. So we can cast away the - * const because it is mutable from our perspective. - */ - uint32_t *p = (uint32_t *)(unsigned long)qb_cl(dq); - uint32_t token; + struct qbman_swp *s; - token = qb_attr_code_decode(&code_dqrr_tok_detect, &p[1]); - if (token == 0) + if (dq->dq.tok == 0) return 0; - /* TODO: Remove qbman_swp from parameters and make it a local - * once we've tested the reserve portal map change - */ - s = portal_idx_map[token - 1]; - /* When token is set it indicates that VDQ command has been fetched - * by qbman and is working on it. It is safe for software to issue - * another VDQ command, so incrementing the busy variable. + + s = portal_idx_map[dq->dq.tok - 1]; + /* + * VDQCR "no longer busy" hook - not quite the same as DQRR, because the + * fact "VDQCR" shows busy doesn't mean that we hold the result that + * makes it available. Eg. we may be looking at our 10th dequeue result, + * having released VDQCR after the 1st result and it is now busy due to + * some other command! */ if (s->vdq.storage == dq) { s->vdq.storage = NULL; atomic_inc(&s->vdq.busy); } + return 1; } @@ -1006,23 +954,10 @@ int qbman_check_command_complete(struct qbman_swp *s, /* Categorising qbman results */ /********************************/ -static struct qb_attr_code code_result_in_mem = - QB_CODE(0, QBMAN_RESULT_VERB_OFFSET_IN_MEM, 7); - static inline int __qbman_result_is_x(const struct qbman_result *dq, - uint32_t x) -{ - const uint32_t *p = qb_cl(dq); - uint32_t response_verb = qb_attr_code_decode(&code_dqrr_response, p); - - return (response_verb == x); -} - -static inline int __qbman_result_is_x_in_mem(const struct qbman_result *dq, - uint32_t x) + uint8_t x) { - const uint32_t *p = qb_cl(dq); - uint32_t response_verb = qb_attr_code_decode(&code_result_in_mem, p); + uint8_t response_verb = dq->dq.verb & QBMAN_RESPONSE_VERB_MASK; return (response_verb == x); } @@ -1044,28 +979,28 @@ int qbman_result_is_CDAN(const struct qbman_result *dq) int qbman_result_is_CSCN(const struct qbman_result *dq) { - return __qbman_result_is_x_in_mem(dq, QBMAN_RESULT_CSCN_MEM) || + return __qbman_result_is_x(dq, QBMAN_RESULT_CSCN_MEM) || __qbman_result_is_x(dq, QBMAN_RESULT_CSCN_WQ); } int qbman_result_is_BPSCN(const struct qbman_result *dq) { - return __qbman_result_is_x_in_mem(dq, QBMAN_RESULT_BPSCN); + return __qbman_result_is_x(dq, QBMAN_RESULT_BPSCN); } int qbman_result_is_CGCU(const struct qbman_result *dq) { - return __qbman_result_is_x_in_mem(dq, QBMAN_RESULT_CGCU); + return __qbman_result_is_x(dq, QBMAN_RESULT_CGCU); } int qbman_result_is_FQRN(const struct qbman_result *dq) { - return __qbman_result_is_x_in_mem(dq, QBMAN_RESULT_FQRN); + return __qbman_result_is_x(dq, QBMAN_RESULT_FQRN); } int qbman_result_is_FQRNI(const struct qbman_result *dq) { - return __qbman_result_is_x_in_mem(dq, QBMAN_RESULT_FQRNI); + return __qbman_result_is_x(dq, QBMAN_RESULT_FQRNI); } int qbman_result_is_FQPN(const struct qbman_result *dq) @@ -1079,109 +1014,62 @@ int qbman_result_is_FQPN(const struct qbman_result *dq) /* These APIs assume qbman_result_is_DQ() is TRUE */ -uint32_t qbman_result_DQ_flags(const struct qbman_result *dq) +uint8_t qbman_result_DQ_flags(const struct qbman_result *dq) { - const uint32_t *p = qb_cl(dq); - - return qb_attr_code_decode(&code_dqrr_stat, p); + return dq->dq.stat; } uint16_t qbman_result_DQ_seqnum(const struct qbman_result *dq) { - const uint32_t *p = qb_cl(dq); - - return (uint16_t)qb_attr_code_decode(&code_dqrr_seqnum, p); + return dq->dq.seqnum; } uint16_t qbman_result_DQ_odpid(const struct qbman_result *dq) { - const uint32_t *p = qb_cl(dq); - - return (uint16_t)qb_attr_code_decode(&code_dqrr_odpid, p); + return dq->dq.oprid; } uint32_t qbman_result_DQ_fqid(const struct qbman_result *dq) { - const uint32_t *p = qb_cl(dq); - - return qb_attr_code_decode(&code_dqrr_fqid, p); + return dq->dq.fqid; } uint32_t qbman_result_DQ_byte_count(const struct qbman_result *dq) { - const uint32_t *p = qb_cl(dq); - - return qb_attr_code_decode(&code_dqrr_byte_count, p); + return dq->dq.fq_byte_cnt; } uint32_t qbman_result_DQ_frame_count(const struct qbman_result *dq) { - const uint32_t *p = qb_cl(dq); - - return qb_attr_code_decode(&code_dqrr_frame_count, p); + return dq->dq.fq_frm_cnt; } uint64_t qbman_result_DQ_fqd_ctx(const struct qbman_result *dq) { - const uint64_t *p = (const uint64_t *)qb_cl(dq); - - return qb_attr_code_decode_64(&code_dqrr_ctx_lo, p); + return dq->dq.fqd_ctx; } const struct qbman_fd *qbman_result_DQ_fd(const struct qbman_result *dq) { - const uint32_t *p = qb_cl(dq); - - return (const struct qbman_fd *)&p[8]; + return (const struct qbman_fd *)&dq->dq.fd[0]; } /**************************************/ /* Parsing state-change notifications */ /**************************************/ - -static struct qb_attr_code code_scn_state = QB_CODE(0, 16, 8); -static struct qb_attr_code code_scn_rid = QB_CODE(1, 0, 24); -static struct qb_attr_code code_scn_state_in_mem = - QB_CODE(0, SCN_STATE_OFFSET_IN_MEM, 8); -static struct qb_attr_code code_scn_rid_in_mem = - QB_CODE(1, SCN_RID_OFFSET_IN_MEM, 24); -static struct qb_attr_code code_scn_ctx_lo = QB_CODE(2, 0, 32); - uint8_t qbman_result_SCN_state(const struct qbman_result *scn) { - const uint32_t *p = qb_cl(scn); - - return (uint8_t)qb_attr_code_decode(&code_scn_state, p); + return scn->scn.state; } uint32_t qbman_result_SCN_rid(const struct qbman_result *scn) { - const uint32_t *p = qb_cl(scn); - - return qb_attr_code_decode(&code_scn_rid, p); + return scn->scn.rid_tok; } uint64_t qbman_result_SCN_ctx(const struct qbman_result *scn) { - const uint64_t *p = (const uint64_t *)qb_cl(scn); - - return qb_attr_code_decode_64(&code_scn_ctx_lo, p); -} - -uint8_t qbman_result_SCN_state_in_mem(const struct qbman_result *scn) -{ - const uint32_t *p = qb_cl(scn); - - return (uint8_t)qb_attr_code_decode(&code_scn_state_in_mem, p); -} - -uint32_t qbman_result_SCN_rid_in_mem(const struct qbman_result *scn) -{ - const uint32_t *p = qb_cl(scn); - uint32_t result_rid; - - result_rid = qb_attr_code_decode(&code_scn_rid_in_mem, p); - return make_le24(result_rid); + return scn->scn.ctx; } /*****************/ @@ -1189,34 +1077,27 @@ uint32_t qbman_result_SCN_rid_in_mem(const struct qbman_result *scn) /*****************/ uint16_t qbman_result_bpscn_bpid(const struct qbman_result *scn) { - return (uint16_t)qbman_result_SCN_rid_in_mem(scn) & 0x3FFF; + return (uint16_t)qbman_result_SCN_rid(scn) & 0x3FFF; } int qbman_result_bpscn_has_free_bufs(const struct qbman_result *scn) { - return !(int)(qbman_result_SCN_state_in_mem(scn) & 0x1); + return !(int)(qbman_result_SCN_state(scn) & 0x1); } int qbman_result_bpscn_is_depleted(const struct qbman_result *scn) { - return (int)(qbman_result_SCN_state_in_mem(scn) & 0x2); + return (int)(qbman_result_SCN_state(scn) & 0x2); } int qbman_result_bpscn_is_surplus(const struct qbman_result *scn) { - return (int)(qbman_result_SCN_state_in_mem(scn) & 0x4); + return (int)(qbman_result_SCN_state(scn) & 0x4); } uint64_t qbman_result_bpscn_ctx(const struct qbman_result *scn) { - uint64_t ctx; - uint32_t ctx_hi, ctx_lo; - - ctx = qbman_result_SCN_ctx(scn); - ctx_hi = upper32(ctx); - ctx_lo = lower32(ctx); - return ((uint64_t)make_le32(ctx_hi) << 32 | - (uint64_t)make_le32(ctx_lo)); + return qbman_result_SCN_ctx(scn); } /*****************/ @@ -1224,52 +1105,37 @@ uint64_t qbman_result_bpscn_ctx(const struct qbman_result *scn) /*****************/ uint16_t qbman_result_cgcu_cgid(const struct qbman_result *scn) { - return (uint16_t)qbman_result_SCN_rid_in_mem(scn) & 0xFFFF; + return (uint16_t)qbman_result_SCN_rid(scn) & 0xFFFF; } uint64_t qbman_result_cgcu_icnt(const struct qbman_result *scn) { - uint64_t ctx; - uint32_t ctx_hi, ctx_lo; - - ctx = qbman_result_SCN_ctx(scn); - ctx_hi = upper32(ctx); - ctx_lo = lower32(ctx); - return ((uint64_t)(make_le32(ctx_hi) & 0xFF) << 32) | - (uint64_t)make_le32(ctx_lo); + return qbman_result_SCN_ctx(scn); } /******************/ /* Buffer release */ /******************/ - -/* These should be const, eventually */ -/* static struct qb_attr_code code_release_num = QB_CODE(0, 0, 3); */ -static struct qb_attr_code code_release_set_me = QB_CODE(0, 5, 1); -static struct qb_attr_code code_release_rcdi = QB_CODE(0, 6, 1); -static struct qb_attr_code code_release_bpid = QB_CODE(0, 16, 16); +#define QB_BR_RC_VALID_SHIFT 5 +#define QB_BR_RCDI_SHIFT 6 void qbman_release_desc_clear(struct qbman_release_desc *d) { - uint32_t *cl; - memset(d, 0, sizeof(*d)); - cl = qb_cl(d); - qb_attr_code_encode(&code_release_set_me, cl, 1); + d->br.verb = 1 << QB_BR_RC_VALID_SHIFT; } -void qbman_release_desc_set_bpid(struct qbman_release_desc *d, uint32_t bpid) +void qbman_release_desc_set_bpid(struct qbman_release_desc *d, uint16_t bpid) { - uint32_t *cl = qb_cl(d); - - qb_attr_code_encode(&code_release_bpid, cl, bpid); + d->br.bpid = bpid; } void qbman_release_desc_set_rcdi(struct qbman_release_desc *d, int enable) { - uint32_t *cl = qb_cl(d); - - qb_attr_code_encode(&code_release_rcdi, cl, !!enable); + if (enable) + d->br.verb |= 1 << QB_BR_RCDI_SHIFT; + else + d->br.verb &= ~(1 << QB_BR_RCDI_SHIFT); } #define RAR_IDX(rar) ((rar) & 0x7) @@ -1286,12 +1152,16 @@ int qbman_swp_release(struct qbman_swp *s, const struct qbman_release_desc *d, pr_debug("RAR=%08x\n", rar); if (!RAR_SUCCESS(rar)) return -EBUSY; + QBMAN_BUG_ON(!num_buffers || (num_buffers > 7)); + /* Start the release command */ p = qbman_cena_write_start_wo_shadow(&s->sys, QBMAN_CENA_SWP_RCR(RAR_IDX(rar))); + /* Copy the caller's buffer pointers to the command */ u64_to_le32_copy(&p[2], buffers, num_buffers); + /* Set the verb byte, have to substitute in the valid-bit and the number * of buffers. */ @@ -1299,25 +1169,38 @@ int qbman_swp_release(struct qbman_swp *s, const struct qbman_release_desc *d, p[0] = cl[0] | RAR_VB(rar) | num_buffers; qbman_cena_write_complete_wo_shadow(&s->sys, QBMAN_CENA_SWP_RCR(RAR_IDX(rar))); + return 0; } /*******************/ /* Buffer acquires */ /*******************/ +struct qbman_acquire_desc { + uint8_t verb; + uint8_t reserved; + uint16_t bpid; + uint8_t num; + uint8_t reserved2[59]; +}; -/* These should be const, eventually */ -static struct qb_attr_code code_acquire_bpid = QB_CODE(0, 16, 16); -static struct qb_attr_code code_acquire_num = QB_CODE(1, 0, 3); -static struct qb_attr_code code_acquire_r_num = QB_CODE(1, 0, 3); +struct qbman_acquire_rslt { + uint8_t verb; + uint8_t rslt; + uint16_t reserved; + uint8_t num; + uint8_t reserved2[3]; + uint64_t buf[7]; +}; -int qbman_swp_acquire(struct qbman_swp *s, uint32_t bpid, uint64_t *buffers, +int qbman_swp_acquire(struct qbman_swp *s, uint16_t bpid, uint64_t *buffers, unsigned int num_buffers) { - uint32_t *p; - uint32_t rslt, num; + struct qbman_acquire_desc *p; + struct qbman_acquire_rslt *r; - QBMAN_BUG_ON(!num_buffers || (num_buffers > 7)); + if (!num_buffers || (num_buffers > 7)) + return -EINVAL; /* Start the management command */ p = qbman_swp_mc_start(s); @@ -1326,59 +1209,81 @@ int qbman_swp_acquire(struct qbman_swp *s, uint32_t bpid, uint64_t *buffers, return -EBUSY; /* Encode the caller-provided attributes */ - qb_attr_code_encode(&code_acquire_bpid, p, bpid); - qb_attr_code_encode(&code_acquire_num, p, num_buffers); + p->bpid = bpid; + p->num = num_buffers; /* Complete the management command */ - p = qbman_swp_mc_complete(s, p, p[0] | QBMAN_MC_ACQUIRE); + r = qbman_swp_mc_complete(s, p, QBMAN_MC_ACQUIRE); + if (unlikely(!r)) { + pr_err("qbman: acquire from BPID %d failed, no response\n", + bpid); + return -EIO; + } /* Decode the outcome */ - rslt = qb_attr_code_decode(&code_generic_rslt, p); - num = qb_attr_code_decode(&code_acquire_r_num, p); - QBMAN_BUG_ON(qb_attr_code_decode(&code_generic_verb, p) != - QBMAN_MC_ACQUIRE); + QBMAN_BUG_ON((r->verb & QBMAN_RESPONSE_VERB_MASK) != QBMAN_MC_ACQUIRE); /* Determine success or failure */ - if (unlikely(rslt != QBMAN_MC_RSLT_OK)) { + if (unlikely(r->rslt != QBMAN_MC_RSLT_OK)) { pr_err("Acquire buffers from BPID 0x%x failed, code=0x%02x\n", - bpid, rslt); + bpid, r->rslt); return -EIO; } - QBMAN_BUG_ON(num > num_buffers); + + QBMAN_BUG_ON(r->num > num_buffers); + /* Copy the acquired buffers to the caller's array */ - u64_from_le32_copy(buffers, &p[2], num); - return (int)num; + u64_from_le32_copy(buffers, &r->buf[0], r->num); + + return (int)r->num; } /*****************/ /* FQ management */ /*****************/ +struct qbman_alt_fq_state_desc { + uint8_t verb; + uint8_t reserved[3]; + uint32_t fqid; + uint8_t reserved2[56]; +}; -static struct qb_attr_code code_fqalt_fqid = QB_CODE(1, 0, 32); +struct qbman_alt_fq_state_rslt { + uint8_t verb; + uint8_t rslt; + uint8_t reserved[62]; +}; + +#define ALT_FQ_FQID_MASK 0x00FFFFFF static int qbman_swp_alt_fq_state(struct qbman_swp *s, uint32_t fqid, uint8_t alt_fq_verb) { - uint32_t *p; - uint32_t rslt; + struct qbman_alt_fq_state_desc *p; + struct qbman_alt_fq_state_rslt *r; /* Start the management command */ p = qbman_swp_mc_start(s); if (!p) return -EBUSY; - qb_attr_code_encode(&code_fqalt_fqid, p, fqid); + p->fqid = fqid & ALT_FQ_FQID_MASK; + /* Complete the management command */ - p = qbman_swp_mc_complete(s, p, p[0] | alt_fq_verb); + r = qbman_swp_mc_complete(s, p, alt_fq_verb); + if (unlikely(!r)) { + pr_err("qbman: mgmt cmd failed, no response (verb=0x%x)\n", + alt_fq_verb); + return -EIO; + } /* Decode the outcome */ - rslt = qb_attr_code_decode(&code_generic_rslt, p); - QBMAN_BUG_ON(qb_attr_code_decode(&code_generic_verb, p) != alt_fq_verb); + QBMAN_BUG_ON((r->verb & QBMAN_RESPONSE_VERB_MASK) != alt_fq_verb); /* Determine success or failure */ - if (unlikely(rslt != QBMAN_MC_RSLT_OK)) { + if (unlikely(r->rslt != QBMAN_MC_RSLT_OK)) { pr_err("ALT FQID %d failed: verb = 0x%08x, code = 0x%02x\n", - fqid, alt_fq_verb, rslt); + fqid, alt_fq_verb, r->rslt); return -EIO; } @@ -1409,10 +1314,24 @@ int qbman_swp_fq_xoff(struct qbman_swp *s, uint32_t fqid) /* Channel management */ /**********************/ -static struct qb_attr_code code_cdan_cid = QB_CODE(0, 16, 12); -static struct qb_attr_code code_cdan_we = QB_CODE(1, 0, 8); -static struct qb_attr_code code_cdan_en = QB_CODE(1, 8, 1); -static struct qb_attr_code code_cdan_ctx_lo = QB_CODE(2, 0, 32); +struct qbman_cdan_ctrl_desc { + uint8_t verb; + uint8_t reserved; + uint16_t ch; + uint8_t we; + uint8_t ctrl; + uint16_t reserved2; + uint64_t cdan_ctx; + uint8_t reserved3[48]; + +}; + +struct qbman_cdan_ctrl_rslt { + uint8_t verb; + uint8_t rslt; + uint16_t ch; + uint8_t reserved[60]; +}; /* Hide "ICD" for now as we don't use it, don't set it, and don't test it, so it * would be irresponsible to expose it. @@ -1424,8 +1343,8 @@ static int qbman_swp_CDAN_set(struct qbman_swp *s, uint16_t channelid, uint8_t we_mask, uint8_t cdan_en, uint64_t ctx) { - uint32_t *p; - uint32_t rslt; + struct qbman_cdan_ctrl_desc *p; + struct qbman_cdan_ctrl_rslt *r; /* Start the management command */ p = qbman_swp_mc_start(s); @@ -1433,22 +1352,29 @@ static int qbman_swp_CDAN_set(struct qbman_swp *s, uint16_t channelid, return -EBUSY; /* Encode the caller-provided attributes */ - qb_attr_code_encode(&code_cdan_cid, p, channelid); - qb_attr_code_encode(&code_cdan_we, p, we_mask); - qb_attr_code_encode(&code_cdan_en, p, cdan_en); - qb_attr_code_encode_64(&code_cdan_ctx_lo, (uint64_t *)p, ctx); + p->ch = channelid; + p->we = we_mask; + if (cdan_en) + p->ctrl = 1; + else + p->ctrl = 0; + p->cdan_ctx = ctx; + /* Complete the management command */ - p = qbman_swp_mc_complete(s, p, p[0] | QBMAN_WQCHAN_CONFIGURE); + r = qbman_swp_mc_complete(s, p, QBMAN_WQCHAN_CONFIGURE); + if (unlikely(!r)) { + pr_err("qbman: wqchan config failed, no response\n"); + return -EIO; + } /* Decode the outcome */ - rslt = qb_attr_code_decode(&code_generic_rslt, p); - QBMAN_BUG_ON(qb_attr_code_decode(&code_generic_verb, p) - != QBMAN_WQCHAN_CONFIGURE); + QBMAN_BUG_ON((r->verb & QBMAN_RESPONSE_VERB_MASK) + != QBMAN_WQCHAN_CONFIGURE); /* Determine success or failure */ - if (unlikely(rslt != QBMAN_MC_RSLT_OK)) { + if (unlikely(r->rslt != QBMAN_MC_RSLT_OK)) { pr_err("CDAN cQID %d failed: code = 0x%02x\n", - channelid, rslt); + channelid, r->rslt); return -EIO; } @@ -1497,92 +1423,3 @@ struct qbman_result *qbman_get_dqrr_from_idx(struct qbman_swp *s, uint8_t idx) dq = qbman_cena_read(&s->sys, QBMAN_CENA_SWP_DQRR(idx)); return dq; } - -int qbman_swp_send_multiple(struct qbman_swp *s, - const struct qbman_eq_desc *d, - const struct qbman_fd *fd, - int frames_to_send) -{ - uint32_t *p; - const uint32_t *cl = qb_cl(d); - uint32_t eqcr_ci; - uint8_t diff; - int sent = 0; - int i; - int initial_pi = s->eqcr.pi; - uint64_t start_pointer; - - if (!s->eqcr.available) { - eqcr_ci = s->eqcr.ci; - s->eqcr.ci = qbman_cena_read_reg(&s->sys, - QBMAN_CENA_SWP_EQCR_CI) & 0xF; - diff = qm_cyc_diff(QBMAN_EQCR_SIZE, - eqcr_ci, s->eqcr.ci); - if (!diff) - goto done; - s->eqcr.available += diff; - } - - /* we are trying to send frames_to_send, - * if we have enough space in the ring - */ - while (s->eqcr.available && frames_to_send--) { - p = qbman_cena_write_start_wo_shadow_fast(&s->sys, - QBMAN_CENA_SWP_EQCR((initial_pi) & 7)); - /* Write command (except of first byte) and FD */ - memcpy(&p[1], &cl[1], 7 * 4); - memcpy(&p[8], &fd[sent], sizeof(struct qbman_fd)); - - initial_pi++; - initial_pi &= 0xF; - s->eqcr.available--; - sent++; - } - -done: - initial_pi = s->eqcr.pi; - lwsync(); - - /* in order for flushes to complete faster: - * we use a following trick: we record all lines in 32 bit word - */ - - initial_pi = s->eqcr.pi; - for (i = 0; i < sent; i++) { - p = qbman_cena_write_start_wo_shadow_fast(&s->sys, - QBMAN_CENA_SWP_EQCR((initial_pi) & 7)); - - p[0] = cl[0] | s->eqcr.pi_vb; - initial_pi++; - initial_pi &= 0xF; - - if (!(initial_pi & 7)) - s->eqcr.pi_vb ^= QB_VALID_BIT; - } - - initial_pi = s->eqcr.pi; - - /* We need to flush all the lines but without - * load/store operations between them. - * We assign start_pointer before we start loop so that - * in loop we do not read it from memory - */ - start_pointer = (uint64_t)s->sys.addr_cena; - for (i = 0; i < sent; i++) { - p = (uint32_t *)(start_pointer - + QBMAN_CENA_SWP_EQCR(initial_pi & 7)); - dcbf((uint64_t)p); - initial_pi++; - initial_pi &= 0xF; - } - - /* Update producer index for the next call */ - s->eqcr.pi = initial_pi; - - return sent; -} - -int qbman_get_version(void) -{ - return qman_version; -} |