--- /dev/null
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(C) 2022 Marvell.
+ */
+
+#include "roc_api.h"
+#include "roc_priv.h"
+
+static const uint8_t y_mask_val[ROC_NIX_TM_MARK_MAX][2] = {
+ [ROC_NIX_TM_MARK_VLAN_DEI] = {0x0, 0x8},
+ [ROC_NIX_TM_MARK_IPV4_DSCP] = {0x1, 0x2},
+ [ROC_NIX_TM_MARK_IPV4_ECN] = {0x0, 0xc},
+ [ROC_NIX_TM_MARK_IPV6_DSCP] = {0x1, 0x2},
+ [ROC_NIX_TM_MARK_IPV6_ECN] = {0x0, 0x3},
+};
+
+static const uint8_t r_mask_val[ROC_NIX_TM_MARK_MAX][2] = {
+ [ROC_NIX_TM_MARK_VLAN_DEI] = {0x0, 0x8},
+ [ROC_NIX_TM_MARK_IPV4_DSCP] = {0x0, 0x3},
+ [ROC_NIX_TM_MARK_IPV4_ECN] = {0x0, 0xc},
+ [ROC_NIX_TM_MARK_IPV6_DSCP] = {0x0, 0x3},
+ [ROC_NIX_TM_MARK_IPV6_ECN] = {0x0, 0x3},
+};
+
+static const uint8_t mark_off[ROC_NIX_TM_MARK_MAX] = {
+ [ROC_NIX_TM_MARK_VLAN_DEI] = 0x3, /* Byte 14 Bit[4:1] */
+ [ROC_NIX_TM_MARK_IPV4_DSCP] = 0x1, /* Byte 1 Bit[6:3] */
+ [ROC_NIX_TM_MARK_IPV4_ECN] = 0x6, /* Byte 1 Bit[1:0], Byte 2 Bit[7:6] */
+ [ROC_NIX_TM_MARK_IPV6_DSCP] = 0x5, /* Byte 0 Bit[2:0], Byte 1 Bit[7] */
+ [ROC_NIX_TM_MARK_IPV6_ECN] = 0x0, /* Byte 1 Bit[7:4] */
+};
+
+static const uint64_t mark_flag[ROC_NIX_TM_MARK_MAX] = {
+ [ROC_NIX_TM_MARK_VLAN_DEI] = NIX_TM_MARK_VLAN_DEI_EN,
+ [ROC_NIX_TM_MARK_IPV4_DSCP] = NIX_TM_MARK_IP_DSCP_EN,
+ [ROC_NIX_TM_MARK_IPV4_ECN] = NIX_TM_MARK_IP_ECN_EN,
+ [ROC_NIX_TM_MARK_IPV6_DSCP] = NIX_TM_MARK_IP_DSCP_EN,
+ [ROC_NIX_TM_MARK_IPV6_ECN] = NIX_TM_MARK_IP_ECN_EN,
+};
+
+static uint8_t
+prepare_tm_shaper_red_algo(struct nix_tm_node *tm_node, volatile uint64_t *reg,
+ volatile uint64_t *regval,
+ volatile uint64_t *regval_mask)
+{
+ uint32_t schq = tm_node->hw_id;
+ uint8_t k = 0;
+
+ plt_tm_dbg("Shaper read alg node %s(%u) lvl %u id %u, red_alg %x (%p)",
+ nix_tm_hwlvl2str(tm_node->hw_lvl), schq, tm_node->lvl,
+ tm_node->id, tm_node->red_algo, tm_node);
+
+ /* Configure just RED algo */
+ regval[k] = ((uint64_t)tm_node->red_algo << 9);
+ regval_mask[k] = ~(BIT_ULL(10) | BIT_ULL(9));
+
+ switch (tm_node->hw_lvl) {
+ case NIX_TXSCH_LVL_SMQ:
+ reg[k] = NIX_AF_MDQX_SHAPE(schq);
+ k++;
+ break;
+ case NIX_TXSCH_LVL_TL4:
+ reg[k] = NIX_AF_TL4X_SHAPE(schq);
+ k++;
+ break;
+ case NIX_TXSCH_LVL_TL3:
+ reg[k] = NIX_AF_TL3X_SHAPE(schq);
+ k++;
+ break;
+ case NIX_TXSCH_LVL_TL2:
+ reg[k] = NIX_AF_TL2X_SHAPE(schq);
+ k++;
+ break;
+ default:
+ break;
+ }
+
+ return k;
+}
+
+/* Only called while device is stopped */
+static int
+nix_tm_update_red_algo(struct nix *nix, bool red_send)
+{
+ struct mbox *mbox = (&nix->dev)->mbox;
+ struct nix_txschq_config *req;
+ struct nix_tm_node_list *list;
+ struct nix_tm_node *tm_node;
+ uint8_t k;
+ int rc;
+
+ list = nix_tm_node_list(nix, nix->tm_tree);
+ TAILQ_FOREACH(tm_node, list, node) {
+ /* Skip leaf nodes */
+ if (nix_tm_is_leaf(nix, tm_node->lvl))
+ continue;
+
+ if (tm_node->hw_lvl == NIX_TXSCH_LVL_TL1)
+ continue;
+
+ /* Skip if no update of red_algo is needed */
+ if ((red_send && (tm_node->red_algo == NIX_REDALG_SEND)) ||
+ (!red_send && (tm_node->red_algo != NIX_REDALG_SEND)))
+ continue;
+
+ /* Update Red algo */
+ if (red_send)
+ tm_node->red_algo = NIX_REDALG_SEND;
+ else
+ tm_node->red_algo = NIX_REDALG_STD;
+
+ /* Update txschq config */
+ req = mbox_alloc_msg_nix_txschq_cfg(mbox);
+ req->lvl = tm_node->hw_lvl;
+ k = prepare_tm_shaper_red_algo(tm_node, req->reg, req->regval,
+ req->regval_mask);
+ req->num_regs = k;
+
+ rc = mbox_process(mbox);
+ if (rc)
+ return rc;
+ }
+ return 0;
+}
+
+/* Return's true if queue reconfig is needed */
+static bool
+nix_tm_update_markfmt(struct nix *nix, enum roc_nix_tm_mark type,
+ int mark_yellow, int mark_red)
+{
+ uint64_t new_markfmt, old_markfmt;
+ uint8_t *tm_markfmt;
+ uint8_t en_shift;
+ uint64_t mask;
+
+ if (type >= ROC_NIX_TM_MARK_MAX)
+ return false;
+
+ /* Pre-allocated mark formats for type:color combinations */
+ tm_markfmt = nix->tm_markfmt[type];
+
+ if (!mark_yellow && !mark_red) {
+ /* Null format to disable */
+ new_markfmt = nix->tm_markfmt_null;
+ } else {
+ /* Marking enabled with combination of yellow and red */
+ if (mark_yellow && mark_red)
+ new_markfmt = tm_markfmt[ROC_NIX_TM_MARK_COLOR_Y_R];
+ else if (mark_yellow)
+ new_markfmt = tm_markfmt[ROC_NIX_TM_MARK_COLOR_Y];
+ else
+ new_markfmt = tm_markfmt[ROC_NIX_TM_MARK_COLOR_R];
+ }
+
+ mask = 0xFFull;
+ /* Format of fast path markfmt
+ * ipv6_ecn[8]:ipv4_ecn[8]:ipv6_dscp[8]:ipv4_dscp[8]:vlan_dei[16]
+ * fmt[7] = ptr offset for IPv4/IPv6 on l2_len.
+ * fmt[6:0] = markfmt idx.
+ */
+ switch (type) {
+ case ROC_NIX_TM_MARK_VLAN_DEI:
+ en_shift = NIX_TM_MARK_VLAN_DEI_SHIFT;
+ mask = 0xFFFFull;
+ new_markfmt |= new_markfmt << 8;
+ break;
+ case ROC_NIX_TM_MARK_IPV4_DSCP:
+ new_markfmt |= BIT_ULL(7);
+ en_shift = NIX_TM_MARK_IPV4_DSCP_SHIFT;
+ break;
+ case ROC_NIX_TM_MARK_IPV4_ECN:
+ new_markfmt |= BIT_ULL(7);
+ en_shift = NIX_TM_MARK_IPV4_ECN_SHIFT;
+ break;
+ case ROC_NIX_TM_MARK_IPV6_DSCP:
+ en_shift = NIX_TM_MARK_IPV6_DSCP_SHIFT;
+ break;
+ case ROC_NIX_TM_MARK_IPV6_ECN:
+ new_markfmt |= BIT_ULL(7);
+ en_shift = NIX_TM_MARK_IPV6_ECN_SHIFT;
+ break;
+ default:
+ return false;
+ }
+
+ /* Skip if same as old config */
+ old_markfmt = (nix->tm_markfmt_en >> en_shift) & mask;
+ if (old_markfmt == new_markfmt)
+ return false;
+
+ /* Need queue reconfig */
+ nix->tm_markfmt_en &= ~(mask << en_shift);
+ nix->tm_markfmt_en |= (new_markfmt << en_shift);
+
+ return true;
+}
+
+int
+nix_tm_mark_init(struct nix *nix)
+{
+ struct mbox *mbox = (&nix->dev)->mbox;
+ struct nix_mark_format_cfg_rsp *rsp;
+ struct nix_mark_format_cfg *req;
+ int rc, i, j;
+
+ /* Check for supported revisions */
+ if (roc_model_is_cn96_ax() || roc_model_is_cn95_a0())
+ return 0;
+
+ /* Null mark format */
+ req = mbox_alloc_msg_nix_mark_format_cfg(mbox);
+ rc = mbox_process_msg(mbox, (void *)&rsp);
+ if (rc) {
+ plt_err("TM failed to alloc null mark format, rc=%d", rc);
+ goto exit;
+ }
+
+ nix->tm_markfmt_null = rsp->mark_format_idx;
+
+ /* Alloc vlan, dscp, ecn mark formats */
+ for (i = 0; i < ROC_NIX_TM_MARK_MAX; i++) {
+ for (j = 0; j < ROC_NIX_TM_MARK_COLOR_MAX; j++) {
+ req = mbox_alloc_msg_nix_mark_format_cfg(mbox);
+ req->offset = mark_off[i];
+
+ switch (j) {
+ case ROC_NIX_TM_MARK_COLOR_Y:
+ req->y_mask = y_mask_val[i][0];
+ req->y_val = y_mask_val[i][1];
+ break;
+ case ROC_NIX_TM_MARK_COLOR_R:
+ req->r_mask = r_mask_val[i][0];
+ req->r_val = r_mask_val[i][1];
+ break;
+ case ROC_NIX_TM_MARK_COLOR_Y_R:
+ req->y_mask = y_mask_val[i][0];
+ req->y_val = y_mask_val[i][1];
+ req->r_mask = r_mask_val[i][0];
+ req->r_val = r_mask_val[i][1];
+ break;
+ }
+
+ rc = mbox_process_msg(mbox, (void *)&rsp);
+ if (rc) {
+ plt_err("TM failed to alloc mark fmt "
+ "type %u color %u, rc=%d",
+ i, j, rc);
+ goto exit;
+ }
+
+ nix->tm_markfmt[i][j] = rsp->mark_format_idx;
+ plt_tm_dbg("Mark type: %u, Mark Color:%u, id:%u\n", i,
+ j, nix->tm_markfmt[i][j]);
+ }
+ }
+ /* Update null mark format as default */
+ nix_tm_update_markfmt(nix, ROC_NIX_TM_MARK_VLAN_DEI, 0, 0);
+ nix_tm_update_markfmt(nix, ROC_NIX_TM_MARK_IPV4_DSCP, 0, 0);
+ nix_tm_update_markfmt(nix, ROC_NIX_TM_MARK_IPV4_ECN, 0, 0);
+ nix_tm_update_markfmt(nix, ROC_NIX_TM_MARK_IPV6_DSCP, 0, 0);
+ nix_tm_update_markfmt(nix, ROC_NIX_TM_MARK_IPV6_ECN, 0, 0);
+exit:
+ return rc;
+}
+
+int
+roc_nix_tm_mark_config(struct roc_nix *roc_nix, enum roc_nix_tm_mark type,
+ int mark_yellow, int mark_red)
+{
+ struct nix *nix = roc_nix_to_nix_priv(roc_nix);
+ int rc;
+
+ if (!(nix->tm_flags & NIX_TM_HIERARCHY_ENA))
+ return -EINVAL;
+
+ rc = nix_tm_update_markfmt(nix, type, mark_yellow, mark_red);
+ if (!rc)
+ return 0;
+
+ if (!mark_yellow && !mark_red)
+ nix->tm_flags &= ~mark_flag[type];
+ else
+ nix->tm_flags |= mark_flag[type];
+
+ /* Update red algo for change in mark_red */
+ return nix_tm_update_red_algo(nix, !!mark_red);
+}
+
+uint64_t
+roc_nix_tm_mark_format_get(struct roc_nix *roc_nix, uint64_t *flags)
+{
+ struct nix *nix = roc_nix_to_nix_priv(roc_nix);
+
+ *flags = ((nix->tm_flags & NIX_TM_MARK_EN_MASK) >> 3);
+ return nix->tm_markfmt_en;
+}
git.droids-corp.org / dpdk.git / commitdiff