static struct octeontx_pko_vf_ctl_s pko_vf_ctl;
+static void *
+octeontx_pko_dq_vf_bar0(uint16_t txq)
+{
+ int vf_ix;
+
+ vf_ix = txq / PKO_VF_NUM_DQ;
+ return pko_vf_ctl.pko[vf_ix].bar0;
+}
+
+static int
+octeontx_pko_dq_gdq(uint16_t txq)
+{
+ return txq % PKO_VF_NUM_DQ;
+}
+
+/**
+ * Open a PKO DQ.
+ */
+static inline
+int octeontx_pko_dq_open(uint16_t txq)
+{
+ unsigned int reg_off;
+ uint8_t *vf_bar0;
+ uint64_t rtn;
+ int gdq;
+
+ vf_bar0 = octeontx_pko_dq_vf_bar0(txq);
+ gdq = octeontx_pko_dq_gdq(txq);
+
+ if (unlikely(gdq < 0 || vf_bar0 == NULL))
+ return -EINVAL;
+ *(volatile int64_t*)(pko_vf_ctl.fc_ctl + txq) =
+ PKO_DQ_FC_DEPTH_PAGES - PKO_DQ_FC_SKID;
+
+ rte_wmb();
+
+ octeontx_write64(PKO_DQ_FC_DEPTH_PAGES,
+ vf_bar0 + PKO_VF_DQ_FC_STATUS(gdq));
+
+ /* Set the register to return descriptor (packet) count as DEPTH */
+ /* KIND=1, NCB_QUERY_RSP=0 */
+ octeontx_write64(1ull << PKO_DQ_KIND_BIT,
+ vf_bar0 + PKO_VF_DQ_WM_CTL(gdq));
+ reg_off = PKO_VF_DQ_OP_OPEN(gdq);
+
+ rtn = octeontx_reg_ldadd_u64(vf_bar0 + reg_off, 0);
+
+ /* PKO_DQOP_E::OPEN */
+ if (((rtn >> PKO_DQ_OP_BIT) & 0x3) != 0x1)
+ return -EIO;
+
+ switch (rtn >> PKO_DQ_STATUS_BIT) {
+ case 0xC: /* DQALREADYCREATED */
+ case 0x0: /* PASS */
+ break;
+ default:
+ return -EIO;
+ }
+
+ /* DRAIN=0, DRAIN_NULL_LINK=0, SW_XOFF=0 */
+ octeontx_write64(0, vf_bar0 + PKO_VF_DQ_SW_XOFF(gdq));
+
+ return rtn & ((1ull << PKO_DQ_OP_BIT) - 1);
+}
+
+/**
+ * Close a PKO DQ
+ * Flush all packets pending.
+ */
+static inline
+int octeontx_pko_dq_close(uint16_t txq)
+{
+ unsigned int reg_off;
+ uint8_t *vf_bar0;
+ uint64_t rtn;
+ int res;
+
+ vf_bar0 = octeontx_pko_dq_vf_bar0(txq);
+ res = octeontx_pko_dq_gdq(txq);
+
+ if (unlikely(res < 0 || vf_bar0 == NULL))
+ return -EINVAL;
+
+ reg_off = PKO_VF_DQ_OP_CLOSE(res);
+
+ rtn = octeontx_reg_ldadd_u64(vf_bar0 + reg_off, 0);
+
+ /* PKO_DQOP_E::CLOSE */
+ if (((rtn >> PKO_DQ_OP_BIT) & 0x3) != 0x2)
+ return -EIO;
+
+ switch (rtn >> PKO_DQ_STATUS_BIT) {
+ case 0xD: /* DQNOTCREATED */
+ case 0x0: /* PASS */
+ break;
+ default:
+ return -EIO;
+ }
+
+ res = rtn & ((1ull << PKO_DQ_OP_BIT) - 1); /* DEPTH */
+ return res;
+}
+
+/* Flush all packets pending on a DQ */
+static inline
+int octeontx_pko_dq_drain(uint16_t txq)
+{
+ unsigned int gdq;
+ uint8_t *vf_bar0;
+ uint64_t reg;
+ int res, timo = PKO_DQ_DRAIN_TO;
+
+ vf_bar0 = octeontx_pko_dq_vf_bar0(txq);
+ res = octeontx_pko_dq_gdq(txq);
+ gdq = res;
+
+ /* DRAIN=1, DRAIN_NULL_LINK=0, SW_XOFF=1 */
+ octeontx_write64(0x3, vf_bar0 + PKO_VF_DQ_SW_XOFF(gdq));
+ /* Wait until buffers leave DQs */
+ reg = octeontx_read64(vf_bar0 + PKO_VF_DQ_WM_CNT(gdq));
+ while (reg && timo > 0) {
+ rte_delay_us(100);
+ timo--;
+ reg = octeontx_read64(vf_bar0 + PKO_VF_DQ_WM_CNT(gdq));
+ }
+ /* DRAIN=0, DRAIN_NULL_LINK=0, SW_XOFF=0 */
+ octeontx_write64(0, vf_bar0 + PKO_VF_DQ_SW_XOFF(gdq));
+
+ return reg;
+}
+
+static inline int
+octeontx_pko_dq_range_lookup(struct octeontx_pko_vf_ctl_s *ctl, uint64_t chanid,
+ unsigned int dq_num, unsigned int dq_from)
+{
+ unsigned int dq, dq_cnt;
+ unsigned int dq_base;
+
+ dq_cnt = 0;
+ dq = dq_from;
+ while (dq < RTE_DIM(ctl->dq_map)) {
+ dq_base = dq;
+ dq_cnt = 0;
+ while (ctl->dq_map[dq].chanid == ~chanid &&
+ dq < RTE_DIM(ctl->dq_map)) {
+ dq_cnt++;
+ if (dq_cnt == dq_num)
+ return dq_base;
+ dq++;
+ }
+ dq++;
+ }
+ return -1;
+}
+
+static inline void
+octeontx_pko_dq_range_assign(struct octeontx_pko_vf_ctl_s *ctl, uint64_t chanid,
+ unsigned int dq_base, unsigned int dq_num)
+{
+ unsigned int dq, dq_cnt;
+
+ dq_cnt = 0;
+ while (dq_cnt < dq_num) {
+ dq = dq_base + dq_cnt;
+
+ octeontx_log_dbg("DQ# %u assigned to CHAN# %" PRIx64 "", dq,
+ chanid);
+
+ ctl->dq_map[dq].chanid = ~chanid;
+ dq_cnt++;
+ }
+}
+
+static inline int
+octeontx_pko_dq_claim(struct octeontx_pko_vf_ctl_s *ctl, unsigned int dq_base,
+ unsigned int dq_num, uint64_t chanid)
+{
+ const uint64_t null_chanid = ~0ull;
+ int dq;
+
+ rte_spinlock_lock(&ctl->lock);
+
+ dq = octeontx_pko_dq_range_lookup(ctl, null_chanid, dq_num, dq_base);
+ if (dq < 0 || (unsigned int)dq != dq_base) {
+ rte_spinlock_unlock(&ctl->lock);
+ return -1;
+ }
+ octeontx_pko_dq_range_assign(ctl, chanid, dq_base, dq_num);
+
+ rte_spinlock_unlock(&ctl->lock);
+
+ return 0;
+}
+
+static inline int
+octeontx_pko_dq_free(struct octeontx_pko_vf_ctl_s *ctl, uint64_t chanid)
+{
+ const uint64_t null_chanid = ~0ull;
+ unsigned int dq = 0, dq_cnt = 0;
+
+ rte_spinlock_lock(&ctl->lock);
+ while (dq < RTE_DIM(ctl->dq_map)) {
+ if (ctl->dq_map[dq].chanid == ~chanid) {
+ ctl->dq_map[dq].chanid = ~null_chanid;
+ dq_cnt++;
+ }
+ dq++;
+ }
+ rte_spinlock_unlock(&ctl->lock);
+
+ return dq_cnt > 0 ? 0 : -EINVAL;
+}
+
+int
+octeontx_pko_channel_open(int dq_base, int dq_num, int chanid)
+{
+ struct octeontx_pko_vf_ctl_s *ctl = &pko_vf_ctl;
+ int res;
+
+ res = octeontx_pko_dq_claim(ctl, dq_base, dq_num, chanid);
+ if (res < 0)
+ return -1;
+
+ return 0;
+}
+
+int
+octeontx_pko_channel_close(int chanid)
+{
+ struct octeontx_pko_vf_ctl_s *ctl = &pko_vf_ctl;
+ int res;
+
+ res = octeontx_pko_dq_free(ctl, chanid);
+ if (res < 0)
+ return -1;
+
+ return 0;
+}
+
+static inline int
+octeontx_pko_chan_start(struct octeontx_pko_vf_ctl_s *ctl, uint64_t chanid)
+{
+ unsigned int dq_vf;
+ unsigned int dq, dq_cnt;
+
+ dq_cnt = 0;
+ dq = 0;
+ while (dq < RTE_DIM(ctl->dq_map)) {
+ dq_vf = dq / PKO_VF_NUM_DQ;
+
+ if (!ctl->pko[dq_vf].bar0) {
+ dq += PKO_VF_NUM_DQ;
+ continue;
+ }
+
+ if (ctl->dq_map[dq].chanid != ~chanid) {
+ dq++;
+ continue;
+ }
+
+ if (octeontx_pko_dq_open(dq) < 0)
+ break;
+
+ dq_cnt++;
+ dq++;
+ }
+
+ return dq_cnt;
+}
+
+int
+octeontx_pko_channel_start(int chanid)
+{
+ struct octeontx_pko_vf_ctl_s *ctl = &pko_vf_ctl;
+ int dq_cnt;
+
+ dq_cnt = octeontx_pko_chan_start(ctl, chanid);
+ if (dq_cnt < 0)
+ return -1;
+
+ return dq_cnt;
+}
+
+static inline int
+octeontx_pko_chan_stop(struct octeontx_pko_vf_ctl_s *ctl, uint64_t chanid)
+{
+ unsigned int dq, dq_cnt, dq_vf;
+ int res;
+
+ dq_cnt = 0;
+ dq = 0;
+ while (dq < RTE_DIM(ctl->dq_map)) {
+ dq_vf = dq / PKO_VF_NUM_DQ;
+
+ if (!ctl->pko[dq_vf].bar0) {
+ dq += PKO_VF_NUM_DQ;
+ continue;
+ }
+
+ if (ctl->dq_map[dq].chanid != ~chanid) {
+ dq++;
+ continue;
+ }
+
+ res = octeontx_pko_dq_drain(dq);
+ if (res > 0)
+ octeontx_log_err("draining DQ%d, buffers left: %x",
+ dq, res);
+
+ res = octeontx_pko_dq_close(dq);
+ if (res < 0)
+ octeontx_log_err("closing DQ%d failed\n", dq);
+
+ dq_cnt++;
+ dq++;
+ }
+ return dq_cnt;
+}
+
+int
+octeontx_pko_channel_stop(int chanid)
+{
+ struct octeontx_pko_vf_ctl_s *ctl = &pko_vf_ctl;
+
+ octeontx_pko_chan_stop(ctl, chanid);
+ return 0;
+}
+
static void
octeontx_pkovf_setup(void)
{
git.droids-corp.org / dpdk.git / blobdiff