--- /dev/null
+// SPDX-License-Identifier: GPL-2.0-only
+/* Atlantic Network Driver
+ * Copyright (C) 2020 Marvell International Ltd.
+ */
+
+#include "macsec_api.h"
+#include <linux/mdio.h>
+#include "MSS_Egress_registers.h"
+#include "aq_phy.h"
+
+#define AQ_API_CALL_SAFE(func, ...) \
+({ \
+ int ret; \
+ do { \
+ ret = aq_mss_mdio_sem_get(hw); \
+ if (unlikely(ret)) \
+ break; \
+ \
+ ret = func(__VA_ARGS__); \
+ \
+ aq_mss_mdio_sem_put(hw); \
+ } while (0); \
+ ret; \
+})
+
+/*******************************************************************************
+ * MDIO wrappers
+ ******************************************************************************/
+static int aq_mss_mdio_sem_get(struct aq_hw_s *hw)
+{
+ u32 val;
+
+ return readx_poll_timeout_atomic(hw_atl_sem_mdio_get, hw, val,
+ val == 1U, 10U, 100000U);
+}
+
+static void aq_mss_mdio_sem_put(struct aq_hw_s *hw)
+{
+ hw_atl_reg_glb_cpu_sem_set(hw, 1U, HW_ATL_FW_SM_MDIO);
+}
+
+static int aq_mss_mdio_read(struct aq_hw_s *hw, u16 mmd, u16 addr, u16 *data)
+{
+ *data = aq_mdio_read_word(hw, mmd, addr);
+ return (*data != 0xffff) ? 0 : -ETIME;
+}
+
+static int aq_mss_mdio_write(struct aq_hw_s *hw, u16 mmd, u16 addr, u16 data)
+{
+ aq_mdio_write_word(hw, mmd, addr, data);
+ return 0;
+}
+
+/*******************************************************************************
+ * MACSEC config and status
+ ******************************************************************************/
+
+/*! Write packed_record to the specified Egress LUT table row. */
+static int set_raw_egress_record(struct aq_hw_s *hw, u16 *packed_record,
+ u8 num_words, u8 table_id,
+ u16 table_index)
+{
+ struct mss_egress_lut_addr_ctl_register lut_sel_reg;
+ struct mss_egress_lut_ctl_register lut_op_reg;
+
+ unsigned int i;
+
+ /* Write the packed record words to the data buffer registers. */
+ for (i = 0; i < num_words; i += 2) {
+ aq_mss_mdio_write(hw, MDIO_MMD_VEND1,
+ MSS_EGRESS_LUT_DATA_CTL_REGISTER_ADDR + i,
+ packed_record[i]);
+ aq_mss_mdio_write(hw, MDIO_MMD_VEND1,
+ MSS_EGRESS_LUT_DATA_CTL_REGISTER_ADDR + i + 1,
+ packed_record[i + 1]);
+ }
+
+ /* Clear out the unused data buffer registers. */
+ for (i = num_words; i < 28; i += 2) {
+ aq_mss_mdio_write(hw, MDIO_MMD_VEND1,
+ MSS_EGRESS_LUT_DATA_CTL_REGISTER_ADDR + i, 0);
+ aq_mss_mdio_write(hw, MDIO_MMD_VEND1,
+ MSS_EGRESS_LUT_DATA_CTL_REGISTER_ADDR + i + 1,
+ 0);
+ }
+
+ /* Select the table and row index to write to */
+ lut_sel_reg.bits_0.lut_select = table_id;
+ lut_sel_reg.bits_0.lut_addr = table_index;
+
+ lut_op_reg.bits_0.lut_read = 0;
+ lut_op_reg.bits_0.lut_write = 1;
+
+ aq_mss_mdio_write(hw, MDIO_MMD_VEND1,
+ MSS_EGRESS_LUT_ADDR_CTL_REGISTER_ADDR,
+ lut_sel_reg.word_0);
+ aq_mss_mdio_write(hw, MDIO_MMD_VEND1, MSS_EGRESS_LUT_CTL_REGISTER_ADDR,
+ lut_op_reg.word_0);
+
+ return 0;
+}
+
+static int get_raw_egress_record(struct aq_hw_s *hw, u16 *packed_record,
+ u8 num_words, u8 table_id,
+ u16 table_index)
+{
+ struct mss_egress_lut_addr_ctl_register lut_sel_reg;
+ struct mss_egress_lut_ctl_register lut_op_reg;
+ int ret;
+
+ unsigned int i;
+
+ /* Select the table and row index to read */
+ lut_sel_reg.bits_0.lut_select = table_id;
+ lut_sel_reg.bits_0.lut_addr = table_index;
+
+ lut_op_reg.bits_0.lut_read = 1;
+ lut_op_reg.bits_0.lut_write = 0;
+
+ ret = aq_mss_mdio_write(hw, MDIO_MMD_VEND1,
+ MSS_EGRESS_LUT_ADDR_CTL_REGISTER_ADDR,
+ lut_sel_reg.word_0);
+ if (unlikely(ret))
+ return ret;
+ ret = aq_mss_mdio_write(hw, MDIO_MMD_VEND1,
+ MSS_EGRESS_LUT_CTL_REGISTER_ADDR,
+ lut_op_reg.word_0);
+ if (unlikely(ret))
+ return ret;
+
+ memset(packed_record, 0, sizeof(u16) * num_words);
+
+ for (i = 0; i < num_words; i += 2) {
+ ret = aq_mss_mdio_read(hw, MDIO_MMD_VEND1,
+ MSS_EGRESS_LUT_DATA_CTL_REGISTER_ADDR +
+ i,
+ &packed_record[i]);
+ if (unlikely(ret))
+ return ret;
+ ret = aq_mss_mdio_read(hw, MDIO_MMD_VEND1,
+ MSS_EGRESS_LUT_DATA_CTL_REGISTER_ADDR +
+ i + 1,
+ &packed_record[i + 1]);
+ if (unlikely(ret))
+ return ret;
+ }
+
+ return 0;
+}
+
+static int set_egress_ctlf_record(struct aq_hw_s *hw,
+ const struct aq_mss_egress_ctlf_record *rec,
+ u16 table_index)
+{
+ u16 packed_record[6];
+
+ if (table_index >= NUMROWS_EGRESSCTLFRECORD)
+ return -EINVAL;
+
+ memset(packed_record, 0, sizeof(u16) * 6);
+
+ packed_record[0] = rec->sa_da[0] & 0xFFFF;
+ packed_record[1] = (rec->sa_da[0] >> 16) & 0xFFFF;
+ packed_record[2] = rec->sa_da[1] & 0xFFFF;
+
+ packed_record[3] = rec->eth_type & 0xFFFF;
+
+ packed_record[4] = rec->match_mask & 0xFFFF;
+
+ packed_record[5] = rec->match_type & 0xF;
+
+ packed_record[5] |= (rec->action & 0x1) << 4;
+
+ return set_raw_egress_record(hw, packed_record, 6, 0,
+ ROWOFFSET_EGRESSCTLFRECORD + table_index);
+}
+
+int aq_mss_set_egress_ctlf_record(struct aq_hw_s *hw,
+ const struct aq_mss_egress_ctlf_record *rec,
+ u16 table_index)
+{
+ return AQ_API_CALL_SAFE(set_egress_ctlf_record, hw, rec, table_index);
+}
+
+static int get_egress_ctlf_record(struct aq_hw_s *hw,
+ struct aq_mss_egress_ctlf_record *rec,
+ u16 table_index)
+{
+ u16 packed_record[6];
+ int ret;
+
+ if (table_index >= NUMROWS_EGRESSCTLFRECORD)
+ return -EINVAL;
+
+ /* If the row that we want to read is odd, first read the previous even
+ * row, throw that value away, and finally read the desired row.
+ */
+ if ((table_index % 2) > 0) {
+ ret = get_raw_egress_record(hw, packed_record, 6, 0,
+ ROWOFFSET_EGRESSCTLFRECORD +
+ table_index - 1);
+ if (unlikely(ret))
+ return ret;
+ }
+
+ ret = get_raw_egress_record(hw, packed_record, 6, 0,
+ ROWOFFSET_EGRESSCTLFRECORD + table_index);
+ if (unlikely(ret))
+ return ret;
+
+ rec->sa_da[0] = packed_record[0];
+ rec->sa_da[0] |= packed_record[1] << 16;
+
+ rec->sa_da[1] = packed_record[2];
+
+ rec->eth_type = packed_record[3];
+
+ rec->match_mask = packed_record[4];
+
+ rec->match_type = packed_record[5] & 0xF;
+
+ rec->action = (packed_record[5] >> 4) & 0x1;
+
+ return 0;
+}
+
+int aq_mss_get_egress_ctlf_record(struct aq_hw_s *hw,
+ struct aq_mss_egress_ctlf_record *rec,
+ u16 table_index)
+{
+ memset(rec, 0, sizeof(*rec));
+
+ return AQ_API_CALL_SAFE(get_egress_ctlf_record, hw, rec, table_index);
+}
+
+static int set_egress_class_record(struct aq_hw_s *hw,
+ const struct aq_mss_egress_class_record *rec,
+ u16 table_index)
+{
+ u16 packed_record[28];
+
+ if (table_index >= NUMROWS_EGRESSCLASSRECORD)
+ return -EINVAL;
+
+ memset(packed_record, 0, sizeof(u16) * 28);
+
+ packed_record[0] = rec->vlan_id & 0xFFF;
+
+ packed_record[0] |= (rec->vlan_up & 0x7) << 12;
+
+ packed_record[0] |= (rec->vlan_valid & 0x1) << 15;
+
+ packed_record[1] = rec->byte3 & 0xFF;
+
+ packed_record[1] |= (rec->byte2 & 0xFF) << 8;
+
+ packed_record[2] = rec->byte1 & 0xFF;
+
+ packed_record[2] |= (rec->byte0 & 0xFF) << 8;
+
+ packed_record[3] = rec->tci & 0xFF;
+
+ packed_record[3] |= (rec->sci[0] & 0xFF) << 8;
+ packed_record[4] = (rec->sci[0] >> 8) & 0xFFFF;
+ packed_record[5] = (rec->sci[0] >> 24) & 0xFF;
+
+ packed_record[5] |= (rec->sci[1] & 0xFF) << 8;
+ packed_record[6] = (rec->sci[1] >> 8) & 0xFFFF;
+ packed_record[7] = (rec->sci[1] >> 24) & 0xFF;
+
+ packed_record[7] |= (rec->eth_type & 0xFF) << 8;
+ packed_record[8] = (rec->eth_type >> 8) & 0xFF;
+
+ packed_record[8] |= (rec->snap[0] & 0xFF) << 8;
+ packed_record[9] = (rec->snap[0] >> 8) & 0xFFFF;
+ packed_record[10] = (rec->snap[0] >> 24) & 0xFF;
+
+ packed_record[10] |= (rec->snap[1] & 0xFF) << 8;
+
+ packed_record[11] = rec->llc & 0xFFFF;
+ packed_record[12] = (rec->llc >> 16) & 0xFF;
+
+ packed_record[12] |= (rec->mac_sa[0] & 0xFF) << 8;
+ packed_record[13] = (rec->mac_sa[0] >> 8) & 0xFFFF;
+ packed_record[14] = (rec->mac_sa[0] >> 24) & 0xFF;
+
+ packed_record[14] |= (rec->mac_sa[1] & 0xFF) << 8;
+ packed_record[15] = (rec->mac_sa[1] >> 8) & 0xFF;
+
+ packed_record[15] |= (rec->mac_da[0] & 0xFF) << 8;
+ packed_record[16] = (rec->mac_da[0] >> 8) & 0xFFFF;
+ packed_record[17] = (rec->mac_da[0] >> 24) & 0xFF;
+
+ packed_record[17] |= (rec->mac_da[1] & 0xFF) << 8;
+ packed_record[18] = (rec->mac_da[1] >> 8) & 0xFF;
+
+ packed_record[18] |= (rec->pn & 0xFF) << 8;
+ packed_record[19] = (rec->pn >> 8) & 0xFFFF;
+ packed_record[20] = (rec->pn >> 24) & 0xFF;
+
+ packed_record[20] |= (rec->byte3_location & 0x3F) << 8;
+
+ packed_record[20] |= (rec->byte3_mask & 0x1) << 14;
+
+ packed_record[20] |= (rec->byte2_location & 0x1) << 15;
+ packed_record[21] = (rec->byte2_location >> 1) & 0x1F;
+
+ packed_record[21] |= (rec->byte2_mask & 0x1) << 5;
+
+ packed_record[21] |= (rec->byte1_location & 0x3F) << 6;
+
+ packed_record[21] |= (rec->byte1_mask & 0x1) << 12;
+
+ packed_record[21] |= (rec->byte0_location & 0x7) << 13;
+ packed_record[22] = (rec->byte0_location >> 3) & 0x7;
+
+ packed_record[22] |= (rec->byte0_mask & 0x1) << 3;
+
+ packed_record[22] |= (rec->vlan_id_mask & 0x3) << 4;
+
+ packed_record[22] |= (rec->vlan_up_mask & 0x1) << 6;
+
+ packed_record[22] |= (rec->vlan_valid_mask & 0x1) << 7;
+
+ packed_record[22] |= (rec->tci_mask & 0xFF) << 8;
+
+ packed_record[23] = rec->sci_mask & 0xFF;
+
+ packed_record[23] |= (rec->eth_type_mask & 0x3) << 8;
+
+ packed_record[23] |= (rec->snap_mask & 0x1F) << 10;
+
+ packed_record[23] |= (rec->llc_mask & 0x1) << 15;
+ packed_record[24] = (rec->llc_mask >> 1) & 0x3;
+
+ packed_record[24] |= (rec->sa_mask & 0x3F) << 2;
+
+ packed_record[24] |= (rec->da_mask & 0x3F) << 8;
+
+ packed_record[24] |= (rec->pn_mask & 0x3) << 14;
+ packed_record[25] = (rec->pn_mask >> 2) & 0x3;
+
+ packed_record[25] |= (rec->eight02dot2 & 0x1) << 2;
+
+ packed_record[25] |= (rec->tci_sc & 0x1) << 3;
+
+ packed_record[25] |= (rec->tci_87543 & 0x1) << 4;
+
+ packed_record[25] |= (rec->exp_sectag_en & 0x1) << 5;
+
+ packed_record[25] |= (rec->sc_idx & 0x1F) << 6;
+
+ packed_record[25] |= (rec->sc_sa & 0x3) << 11;
+
+ packed_record[25] |= (rec->debug & 0x1) << 13;
+
+ packed_record[25] |= (rec->action & 0x3) << 14;
+
+ packed_record[26] = (rec->valid & 0x1) << 3;
+
+ return set_raw_egress_record(hw, packed_record, 28, 1,
+ ROWOFFSET_EGRESSCLASSRECORD + table_index);
+}
+
+int aq_mss_set_egress_class_record(struct aq_hw_s *hw,
+ const struct aq_mss_egress_class_record *rec,
+ u16 table_index)
+{
+ return AQ_API_CALL_SAFE(set_egress_class_record, hw, rec, table_index);
+}
+
+static int get_egress_class_record(struct aq_hw_s *hw,
+ struct aq_mss_egress_class_record *rec,
+ u16 table_index)
+{
+ u16 packed_record[28];
+ int ret;
+
+ if (table_index >= NUMROWS_EGRESSCLASSRECORD)
+ return -EINVAL;
+
+ /* If the row that we want to read is odd, first read the previous even
+ * row, throw that value away, and finally read the desired row.
+ */
+ if ((table_index % 2) > 0) {
+ ret = get_raw_egress_record(hw, packed_record, 28, 1,
+ ROWOFFSET_EGRESSCLASSRECORD +
+ table_index - 1);
+ if (unlikely(ret))
+ return ret;
+ }
+
+ ret = get_raw_egress_record(hw, packed_record, 28, 1,
+ ROWOFFSET_EGRESSCLASSRECORD + table_index);
+ if (unlikely(ret))
+ return ret;
+
+ rec->vlan_id = packed_record[0] & 0xFFF;
+
+ rec->vlan_up = (packed_record[0] >> 12) & 0x7;
+
+ rec->vlan_valid = (packed_record[0] >> 15) & 0x1;
+
+ rec->byte3 = packed_record[1] & 0xFF;
+
+ rec->byte2 = (packed_record[1] >> 8) & 0xFF;
+
+ rec->byte1 = packed_record[2] & 0xFF;
+
+ rec->byte0 = (packed_record[2] >> 8) & 0xFF;
+
+ rec->tci = packed_record[3] & 0xFF;
+
+ rec->sci[0] = (packed_record[3] >> 8) & 0xFF;
+ rec->sci[0] |= packed_record[4] << 8;
+ rec->sci[0] |= (packed_record[5] & 0xFF) << 24;
+
+ rec->sci[1] = (packed_record[5] >> 8) & 0xFF;
+ rec->sci[1] |= packed_record[6] << 8;
+ rec->sci[1] |= (packed_record[7] & 0xFF) << 24;
+
+ rec->eth_type = (packed_record[7] >> 8) & 0xFF;
+ rec->eth_type |= (packed_record[8] & 0xFF) << 8;
+
+ rec->snap[0] = (packed_record[8] >> 8) & 0xFF;
+ rec->snap[0] |= packed_record[9] << 8;
+ rec->snap[0] |= (packed_record[10] & 0xFF) << 24;
+
+ rec->snap[1] = (packed_record[10] >> 8) & 0xFF;
+
+ rec->llc = packed_record[11];
+ rec->llc |= (packed_record[12] & 0xFF) << 16;
+
+ rec->mac_sa[0] = (packed_record[12] >> 8) & 0xFF;
+ rec->mac_sa[0] |= packed_record[13] << 8;
+ rec->mac_sa[0] |= (packed_record[14] & 0xFF) << 24;
+
+ rec->mac_sa[1] = (packed_record[14] >> 8) & 0xFF;
+ rec->mac_sa[1] |= (packed_record[15] & 0xFF) << 8;
+
+ rec->mac_da[0] = (packed_record[15] >> 8) & 0xFF;
+ rec->mac_da[0] |= packed_record[16] << 8;
+ rec->mac_da[0] |= (packed_record[17] & 0xFF) << 24;
+
+ rec->mac_da[1] = (packed_record[17] >> 8) & 0xFF;
+ rec->mac_da[1] |= (packed_record[18] & 0xFF) << 8;
+
+ rec->pn = (packed_record[18] >> 8) & 0xFF;
+ rec->pn |= packed_record[19] << 8;
+ rec->pn |= (packed_record[20] & 0xFF) << 24;
+
+ rec->byte3_location = (packed_record[20] >> 8) & 0x3F;
+
+ rec->byte3_mask = (packed_record[20] >> 14) & 0x1;
+
+ rec->byte2_location = (packed_record[20] >> 15) & 0x1;
+ rec->byte2_location |= (packed_record[21] & 0x1F) << 1;
+
+ rec->byte2_mask = (packed_record[21] >> 5) & 0x1;
+
+ rec->byte1_location = (packed_record[21] >> 6) & 0x3F;
+
+ rec->byte1_mask = (packed_record[21] >> 12) & 0x1;
+
+ rec->byte0_location = (packed_record[21] >> 13) & 0x7;
+ rec->byte0_location |= (packed_record[22] & 0x7) << 3;
+
+ rec->byte0_mask = (packed_record[22] >> 3) & 0x1;
+
+ rec->vlan_id_mask = (packed_record[22] >> 4) & 0x3;
+
+ rec->vlan_up_mask = (packed_record[22] >> 6) & 0x1;
+
+ rec->vlan_valid_mask = (packed_record[22] >> 7) & 0x1;
+
+ rec->tci_mask = (packed_record[22] >> 8) & 0xFF;
+
+ rec->sci_mask = packed_record[23] & 0xFF;
+
+ rec->eth_type_mask = (packed_record[23] >> 8) & 0x3;
+
+ rec->snap_mask = (packed_record[23] >> 10) & 0x1F;
+
+ rec->llc_mask = (packed_record[23] >> 15) & 0x1;
+ rec->llc_mask |= (packed_record[24] & 0x3) << 1;
+
+ rec->sa_mask = (packed_record[24] >> 2) & 0x3F;
+
+ rec->da_mask = (packed_record[24] >> 8) & 0x3F;
+
+ rec->pn_mask = (packed_record[24] >> 14) & 0x3;
+ rec->pn_mask |= (packed_record[25] & 0x3) << 2;
+
+ rec->eight02dot2 = (packed_record[25] >> 2) & 0x1;
+
+ rec->tci_sc = (packed_record[25] >> 3) & 0x1;
+
+ rec->tci_87543 = (packed_record[25] >> 4) & 0x1;
+
+ rec->exp_sectag_en = (packed_record[25] >> 5) & 0x1;
+
+ rec->sc_idx = (packed_record[25] >> 6) & 0x1F;
+
+ rec->sc_sa = (packed_record[25] >> 11) & 0x3;
+
+ rec->debug = (packed_record[25] >> 13) & 0x1;
+
+ rec->action = (packed_record[25] >> 14) & 0x3;
+
+ rec->valid = (packed_record[26] >> 3) & 0x1;
+
+ return 0;
+}
+
+int aq_mss_get_egress_class_record(struct aq_hw_s *hw,
+ struct aq_mss_egress_class_record *rec,
+ u16 table_index)
+{
+ memset(rec, 0, sizeof(*rec));
+
+ return AQ_API_CALL_SAFE(get_egress_class_record, hw, rec, table_index);
+}
+
+static int set_egress_sc_record(struct aq_hw_s *hw,
+ const struct aq_mss_egress_sc_record *rec,
+ u16 table_index)
+{
+ u16 packed_record[8];
+
+ if (table_index >= NUMROWS_EGRESSSCRECORD)
+ return -EINVAL;
+
+ memset(packed_record, 0, sizeof(u16) * 8);
+
+ packed_record[0] = rec->start_time & 0xFFFF;
+ packed_record[1] = (rec->start_time >> 16) & 0xFFFF;
+
+ packed_record[2] = rec->stop_time & 0xFFFF;
+ packed_record[3] = (rec->stop_time >> 16) & 0xFFFF;
+
+ packed_record[4] = rec->curr_an & 0x3;
+
+ packed_record[4] |= (rec->an_roll & 0x1) << 2;
+
+ packed_record[4] |= (rec->tci & 0x3F) << 3;
+
+ packed_record[4] |= (rec->enc_off & 0x7F) << 9;
+ packed_record[5] = (rec->enc_off >> 7) & 0x1;
+
+ packed_record[5] |= (rec->protect & 0x1) << 1;
+
+ packed_record[5] |= (rec->recv & 0x1) << 2;
+
+ packed_record[5] |= (rec->fresh & 0x1) << 3;
+
+ packed_record[5] |= (rec->sak_len & 0x3) << 4;
+
+ packed_record[7] |= (rec->valid & 0x1) << 15;
+
+ return set_raw_egress_record(hw, packed_record, 8, 2,
+ ROWOFFSET_EGRESSSCRECORD + table_index);
+}
+
+int aq_mss_set_egress_sc_record(struct aq_hw_s *hw,
+ const struct aq_mss_egress_sc_record *rec,
+ u16 table_index)
+{
+ return AQ_API_CALL_SAFE(set_egress_sc_record, hw, rec, table_index);
+}
+
+static int get_egress_sc_record(struct aq_hw_s *hw,
+ struct aq_mss_egress_sc_record *rec,
+ u16 table_index)
+{
+ u16 packed_record[8];
+ int ret;
+
+ if (table_index >= NUMROWS_EGRESSSCRECORD)
+ return -EINVAL;
+
+ ret = get_raw_egress_record(hw, packed_record, 8, 2,
+ ROWOFFSET_EGRESSSCRECORD + table_index);
+ if (unlikely(ret))
+ return ret;
+
+ rec->start_time = packed_record[0];
+ rec->start_time |= packed_record[1] << 16;
+
+ rec->stop_time = packed_record[2];
+ rec->stop_time |= packed_record[3] << 16;
+
+ rec->curr_an = packed_record[4] & 0x3;
+
+ rec->an_roll = (packed_record[4] >> 2) & 0x1;
+
+ rec->tci = (packed_record[4] >> 3) & 0x3F;
+
+ rec->enc_off = (packed_record[4] >> 9) & 0x7F;
+ rec->enc_off |= (packed_record[5] & 0x1) << 7;
+
+ rec->protect = (packed_record[5] >> 1) & 0x1;
+
+ rec->recv = (packed_record[5] >> 2) & 0x1;
+
+ rec->fresh = (packed_record[5] >> 3) & 0x1;
+
+ rec->sak_len = (packed_record[5] >> 4) & 0x3;
+
+ rec->valid = (packed_record[7] >> 15) & 0x1;
+
+ return 0;
+}
+
+int aq_mss_get_egress_sc_record(struct aq_hw_s *hw,
+ struct aq_mss_egress_sc_record *rec,
+ u16 table_index)
+{
+ memset(rec, 0, sizeof(*rec));
+
+ return AQ_API_CALL_SAFE(get_egress_sc_record, hw, rec, table_index);
+}
+
+static int set_egress_sa_record(struct aq_hw_s *hw,
+ const struct aq_mss_egress_sa_record *rec,
+ u16 table_index)
+{
+ u16 packed_record[8];
+
+ if (table_index >= NUMROWS_EGRESSSARECORD)
+ return -EINVAL;
+
+ memset(packed_record, 0, sizeof(u16) * 8);
+
+ packed_record[0] = rec->start_time & 0xFFFF;
+ packed_record[1] = (rec->start_time >> 16) & 0xFFFF;
+
+ packed_record[2] = rec->stop_time & 0xFFFF;
+ packed_record[3] = (rec->stop_time >> 16) & 0xFFFF;
+
+ packed_record[4] = rec->next_pn & 0xFFFF;
+ packed_record[5] = (rec->next_pn >> 16) & 0xFFFF;
+
+ packed_record[6] = rec->sat_pn & 0x1;
+
+ packed_record[6] |= (rec->fresh & 0x1) << 1;
+
+ packed_record[7] = (rec->valid & 0x1) << 15;
+
+ return set_raw_egress_record(hw, packed_record, 8, 2,
+ ROWOFFSET_EGRESSSARECORD + table_index);
+}
+
+int aq_mss_set_egress_sa_record(struct aq_hw_s *hw,
+ const struct aq_mss_egress_sa_record *rec,
+ u16 table_index)
+{
+ int err = AQ_API_CALL_SAFE(set_egress_sa_record, hw, rec, table_index);
+
+ WARN_ONCE(err, "%s failed with %d\n", __func__, err);
+
+ return err;
+}
+
+static int get_egress_sa_record(struct aq_hw_s *hw,
+ struct aq_mss_egress_sa_record *rec,
+ u16 table_index)
+{
+ u16 packed_record[8];
+ int ret;
+
+ if (table_index >= NUMROWS_EGRESSSARECORD)
+ return -EINVAL;
+
+ ret = get_raw_egress_record(hw, packed_record, 8, 2,
+ ROWOFFSET_EGRESSSARECORD + table_index);
+ if (unlikely(ret))
+ return ret;
+
+ rec->start_time = packed_record[0];
+ rec->start_time |= packed_record[1] << 16;
+
+ rec->stop_time = packed_record[2];
+ rec->stop_time |= packed_record[3] << 16;
+
+ rec->next_pn = packed_record[4];
+ rec->next_pn |= packed_record[5] << 16;
+
+ rec->sat_pn = packed_record[6] & 0x1;
+
+ rec->fresh = (packed_record[6] >> 1) & 0x1;
+
+ rec->valid = (packed_record[7] >> 15) & 0x1;
+
+ return 0;
+}
+
+int aq_mss_get_egress_sa_record(struct aq_hw_s *hw,
+ struct aq_mss_egress_sa_record *rec,
+ u16 table_index)
+{
+ memset(rec, 0, sizeof(*rec));
+
+ return AQ_API_CALL_SAFE(get_egress_sa_record, hw, rec, table_index);
+}
+
+static int set_egress_sakey_record(struct aq_hw_s *hw,
+ const struct aq_mss_egress_sakey_record *rec,
+ u16 table_index)
+{
+ u16 packed_record[16];
+ int ret;
+
+ if (table_index >= NUMROWS_EGRESSSAKEYRECORD)
+ return -EINVAL;
+
+ memset(packed_record, 0, sizeof(u16) * 16);
+
+ packed_record[0] = rec->key[0] & 0xFFFF;
+ packed_record[1] = (rec->key[0] >> 16) & 0xFFFF;
+
+ packed_record[2] = rec->key[1] & 0xFFFF;
+ packed_record[3] = (rec->key[1] >> 16) & 0xFFFF;
+
+ packed_record[4] = rec->key[2] & 0xFFFF;
+ packed_record[5] = (rec->key[2] >> 16) & 0xFFFF;
+
+ packed_record[6] = rec->key[3] & 0xFFFF;
+ packed_record[7] = (rec->key[3] >> 16) & 0xFFFF;
+
+ packed_record[8] = rec->key[4] & 0xFFFF;
+ packed_record[9] = (rec->key[4] >> 16) & 0xFFFF;
+
+ packed_record[10] = rec->key[5] & 0xFFFF;
+ packed_record[11] = (rec->key[5] >> 16) & 0xFFFF;
+
+ packed_record[12] = rec->key[6] & 0xFFFF;
+ packed_record[13] = (rec->key[6] >> 16) & 0xFFFF;
+
+ packed_record[14] = rec->key[7] & 0xFFFF;
+ packed_record[15] = (rec->key[7] >> 16) & 0xFFFF;
+
+ ret = set_raw_egress_record(hw, packed_record, 8, 2,
+ ROWOFFSET_EGRESSSAKEYRECORD + table_index);
+ if (unlikely(ret))
+ return ret;
+ ret = set_raw_egress_record(hw, packed_record + 8, 8, 2,
+ ROWOFFSET_EGRESSSAKEYRECORD + table_index -
+ 32);
+ if (unlikely(ret))
+ return ret;
+
+ return 0;
+}
+
+int aq_mss_set_egress_sakey_record(struct aq_hw_s *hw,
+ const struct aq_mss_egress_sakey_record *rec,
+ u16 table_index)
+{
+ int err = AQ_API_CALL_SAFE(set_egress_sakey_record, hw, rec,
+ table_index);
+
+ WARN_ONCE(err, "%s failed with %d\n", __func__, err);
+
+ return err;
+}
+
+static int get_egress_sakey_record(struct aq_hw_s *hw,
+ struct aq_mss_egress_sakey_record *rec,
+ u16 table_index)
+{
+ u16 packed_record[16];
+ int ret;
+
+ if (table_index >= NUMROWS_EGRESSSAKEYRECORD)
+ return -EINVAL;
+
+ ret = get_raw_egress_record(hw, packed_record, 8, 2,
+ ROWOFFSET_EGRESSSAKEYRECORD + table_index);
+ if (unlikely(ret))
+ return ret;
+ ret = get_raw_egress_record(hw, packed_record + 8, 8, 2,
+ ROWOFFSET_EGRESSSAKEYRECORD + table_index -
+ 32);
+ if (unlikely(ret))
+ return ret;
+
+ rec->key[0] = packed_record[0];
+ rec->key[0] |= packed_record[1] << 16;
+
+ rec->key[1] = packed_record[2];
+ rec->key[1] |= packed_record[3] << 16;
+
+ rec->key[2] = packed_record[4];
+ rec->key[2] |= packed_record[5] << 16;
+
+ rec->key[3] = packed_record[6];
+ rec->key[3] |= packed_record[7] << 16;
+
+ rec->key[4] = packed_record[8];
+ rec->key[4] |= packed_record[9] << 16;
+
+ rec->key[5] = packed_record[10];
+ rec->key[5] |= packed_record[11] << 16;
+
+ rec->key[6] = packed_record[12];
+ rec->key[6] |= packed_record[13] << 16;
+
+ rec->key[7] = packed_record[14];
+ rec->key[7] |= packed_record[15] << 16;
+
+ return 0;
+}
+
+int aq_mss_get_egress_sakey_record(struct aq_hw_s *hw,
+ struct aq_mss_egress_sakey_record *rec,
+ u16 table_index)
+{
+ memset(rec, 0, sizeof(*rec));
+
+ return AQ_API_CALL_SAFE(get_egress_sakey_record, hw, rec, table_index);
+}
+
+static int get_egress_sa_expired(struct aq_hw_s *hw, u32 *expired)
+{
+ u16 val;
+ int ret;
+
+ ret = aq_mss_mdio_read(hw, MDIO_MMD_VEND1,
+ MSS_EGRESS_SA_EXPIRED_STATUS_REGISTER_ADDR,
+ &val);
+ if (unlikely(ret))
+ return ret;
+
+ *expired = val;
+
+ ret = aq_mss_mdio_read(hw, MDIO_MMD_VEND1,
+ MSS_EGRESS_SA_EXPIRED_STATUS_REGISTER_ADDR + 1,
+ &val);
+ if (unlikely(ret))
+ return ret;
+
+ *expired |= val << 16;
+
+ return 0;
+}
+
+int aq_mss_get_egress_sa_expired(struct aq_hw_s *hw, u32 *expired)
+{
+ *expired = 0;
+
+ return AQ_API_CALL_SAFE(get_egress_sa_expired, hw, expired);
+}
+
+static int get_egress_sa_threshold_expired(struct aq_hw_s *hw,
+ u32 *expired)
+{
+ u16 val;
+ int ret;
+
+ ret = aq_mss_mdio_read(hw, MDIO_MMD_VEND1,
+ MSS_EGRESS_SA_THRESHOLD_EXPIRED_STATUS_REGISTER_ADDR, &val);
+ if (unlikely(ret))
+ return ret;
+
+ *expired = val;
+
+ ret = aq_mss_mdio_read(hw, MDIO_MMD_VEND1,
+ MSS_EGRESS_SA_THRESHOLD_EXPIRED_STATUS_REGISTER_ADDR + 1, &val);
+ if (unlikely(ret))
+ return ret;
+
+ *expired |= val << 16;
+
+ return 0;
+}
+
+int aq_mss_get_egress_sa_threshold_expired(struct aq_hw_s *hw,
+ u32 *expired)
+{
+ *expired = 0;
+
+ return AQ_API_CALL_SAFE(get_egress_sa_threshold_expired, hw, expired);
+}
+
+static int set_egress_sa_expired(struct aq_hw_s *hw, u32 expired)
+{
+ int ret;
+
+ ret = aq_mss_mdio_write(hw, MDIO_MMD_VEND1,
+ MSS_EGRESS_SA_EXPIRED_STATUS_REGISTER_ADDR,
+ expired & 0xFFFF);
+ if (unlikely(ret))
+ return ret;
+
+ ret = aq_mss_mdio_write(hw, MDIO_MMD_VEND1,
+ MSS_EGRESS_SA_EXPIRED_STATUS_REGISTER_ADDR + 1,
+ expired >> 16);
+ if (unlikely(ret))
+ return ret;
+
+ return 0;
+}
+
+int aq_mss_set_egress_sa_expired(struct aq_hw_s *hw, u32 expired)
+{
+ return AQ_API_CALL_SAFE(set_egress_sa_expired, hw, expired);
+}
+
+static int set_egress_sa_threshold_expired(struct aq_hw_s *hw, u32 expired)
+{
+ int ret;
+
+ ret = aq_mss_mdio_write(hw, MDIO_MMD_VEND1,
+ MSS_EGRESS_SA_THRESHOLD_EXPIRED_STATUS_REGISTER_ADDR,
+ expired & 0xFFFF);
+ if (unlikely(ret))
+ return ret;
+
+ ret = aq_mss_mdio_write(hw, MDIO_MMD_VEND1,
+ MSS_EGRESS_SA_THRESHOLD_EXPIRED_STATUS_REGISTER_ADDR + 1,
+ expired >> 16);
+ if (unlikely(ret))
+ return ret;
+
+ return 0;
+}
+
+int aq_mss_set_egress_sa_threshold_expired(struct aq_hw_s *hw, u32 expired)
+{
+ return AQ_API_CALL_SAFE(set_egress_sa_threshold_expired, hw, expired);
+}
--- /dev/null
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* Atlantic Network Driver
+ * Copyright (C) 2020 Marvell International Ltd.
+ */
+
+#ifndef _MACSEC_STRUCT_H_
+#define _MACSEC_STRUCT_H_
+
+/*! Represents the bitfields of a single row in the Egress CTL Filter
+ * table.
+ */
+struct aq_mss_egress_ctlf_record {
+ /*! This is used to store the 48 bit value used to compare SA, DA or
+ * halfDA+half SA value.
+ */
+ u32 sa_da[2];
+ /*! This is used to store the 16 bit ethertype value used for
+ * comparison.
+ */
+ u32 eth_type;
+ /*! The match mask is per-nibble. 0 means don't care, i.e. every value
+ * will match successfully. The total data is 64 bit, i.e. 16 nibbles
+ * masks.
+ */
+ u32 match_mask;
+ /*! 0: No compare, i.e. This entry is not used
+ * 1: compare DA only
+ * 2: compare SA only
+ * 3: compare half DA + half SA
+ * 4: compare ether type only
+ * 5: compare DA + ethertype
+ * 6: compare SA + ethertype
+ * 7: compare DA+ range.
+ */
+ u32 match_type;
+ /*! 0: Bypass the remaining modules if matched.
+ * 1: Forward to next module for more classifications.
+ */
+ u32 action;
+};
+
+/*! Represents the bitfields of a single row in the Egress Packet
+ * Classifier table.
+ */
+struct aq_mss_egress_class_record {
+ /*! VLAN ID field. */
+ u32 vlan_id;
+ /*! VLAN UP field. */
+ u32 vlan_up;
+ /*! VLAN Present in the Packet. */
+ u32 vlan_valid;
+ /*! The 8 bit value used to compare with extracted value for byte 3. */
+ u32 byte3;
+ /*! The 8 bit value used to compare with extracted value for byte 2. */
+ u32 byte2;
+ /*! The 8 bit value used to compare with extracted value for byte 1. */
+ u32 byte1;
+ /*! The 8 bit value used to compare with extracted value for byte 0. */
+ u32 byte0;
+ /*! The 8 bit TCI field used to compare with extracted value. */
+ u32 tci;
+ /*! The 64 bit SCI field in the SecTAG. */
+ u32 sci[2];
+ /*! The 16 bit Ethertype (in the clear) field used to compare with
+ * extracted value.
+ */
+ u32 eth_type;
+ /*! This is to specify the 40bit SNAP header if the SNAP header's mask
+ * is enabled.
+ */
+ u32 snap[2];
+ /*! This is to specify the 24bit LLC header if the LLC header's mask is
+ * enabled.
+ */
+ u32 llc;
+ /*! The 48 bit MAC_SA field used to compare with extracted value. */
+ u32 mac_sa[2];
+ /*! The 48 bit MAC_DA field used to compare with extracted value. */
+ u32 mac_da[2];
+ /*! The 32 bit Packet number used to compare with extracted value. */
+ u32 pn;
+ /*! 0~63: byte location used extracted by packets comparator, which
+ * can be anything from the first 64 bytes of the MAC packets.
+ * This byte location counted from MAC' DA address. i.e. set to 0
+ * will point to byte 0 of DA address.
+ */
+ u32 byte3_location;
+ /*! 0: don't care
+ * 1: enable comparison of extracted byte pointed by byte 3 location.
+ */
+ u32 byte3_mask;
+ /*! 0~63: byte location used extracted by packets comparator, which
+ * can be anything from the first 64 bytes of the MAC packets.
+ * This byte location counted from MAC' DA address. i.e. set to 0
+ * will point to byte 0 of DA address.
+ */
+ u32 byte2_location;
+ /*! 0: don't care
+ * 1: enable comparison of extracted byte pointed by byte 2 location.
+ */
+ u32 byte2_mask;
+ /*! 0~63: byte location used extracted by packets comparator, which
+ * can be anything from the first 64 bytes of the MAC packets.
+ * This byte location counted from MAC' DA address. i.e. set to 0
+ * will point to byte 0 of DA address.
+ */
+ u32 byte1_location;
+ /*! 0: don't care
+ * 1: enable comparison of extracted byte pointed by byte 1 location.
+ */
+ u32 byte1_mask;
+ /*! 0~63: byte location used extracted by packets comparator, which
+ * can be anything from the first 64 bytes of the MAC packets.
+ * This byte location counted from MAC' DA address. i.e. set to 0
+ * will point to byte 0 of DA address.
+ */
+ u32 byte0_location;
+ /*! 0: don't care
+ * 1: enable comparison of extracted byte pointed by byte 0 location.
+ */
+ u32 byte0_mask;
+ /*! Mask is per-byte.
+ * 0: don't care
+ * 1: enable comparison of extracted VLAN ID field.
+ */
+ u32 vlan_id_mask;
+ /*! 0: don't care
+ * 1: enable comparison of extracted VLAN UP field.
+ */
+ u32 vlan_up_mask;
+ /*! 0: don't care
+ * 1: enable comparison of extracted VLAN Valid field.
+ */
+ u32 vlan_valid_mask;
+ /*! This is bit mask to enable comparison the 8 bit TCI field,
+ * including the AN field.
+ * For explicit SECTAG, AN is hardware controlled. For sending
+ * packet w/ explicit SECTAG, rest of the TCI fields are directly
+ * from the SECTAG.
+ */
+ u32 tci_mask;
+ /*! Mask is per-byte.
+ * 0: don't care
+ * 1: enable comparison of SCI
+ * Note: If this field is not 0, this means the input packet's
+ * SECTAG is explicitly tagged and MACSEC module will only update
+ * the MSDU.
+ * PN number is hardware controlled.
+ */
+ u32 sci_mask;
+ /*! Mask is per-byte.
+ * 0: don't care
+ * 1: enable comparison of Ethertype.
+ */
+ u32 eth_type_mask;
+ /*! Mask is per-byte.
+ * 0: don't care and no SNAP header exist.
+ * 1: compare the SNAP header.
+ * If this bit is set to 1, the extracted filed will assume the
+ * SNAP header exist as encapsulated in 802.3 (RFC 1042). I.E. the
+ * next 5 bytes after the the LLC header is SNAP header.
+ */
+ u32 snap_mask;
+ /*! 0: don't care and no LLC header exist.
+ * 1: compare the LLC header.
+ * If this bit is set to 1, the extracted filed will assume the
+ * LLC header exist as encapsulated in 802.3 (RFC 1042). I.E. the
+ * next three bytes after the 802.3MAC header is LLC header.
+ */
+ u32 llc_mask;
+ /*! Mask is per-byte.
+ * 0: don't care
+ * 1: enable comparison of MAC_SA.
+ */
+ u32 sa_mask;
+ /*! Mask is per-byte.
+ * 0: don't care
+ * 1: enable comparison of MAC_DA.
+ */
+ u32 da_mask;
+ /*! Mask is per-byte. */
+ u32 pn_mask;
+ /*! Reserved. This bit should be always 0. */
+ u32 eight02dot2;
+ /*! 1: For explicit sectag case use TCI_SC from table
+ * 0: use TCI_SC from explicit sectag.
+ */
+ u32 tci_sc;
+ /*! 1: For explicit sectag case,use TCI_V,ES,SCB,E,C from table
+ * 0: use TCI_V,ES,SCB,E,C from explicit sectag.
+ */
+ u32 tci_87543;
+ /*! 1: indicates that incoming packet has explicit sectag. */
+ u32 exp_sectag_en;
+ /*! If packet matches and tagged as controlled-packet, this SC/SA
+ * index is used for later SC and SA table lookup.
+ */
+ u32 sc_idx;
+ /*! This field is used to specify how many SA entries are
+ * associated with 1 SC entry.
+ * 2'b00: 1 SC has 4 SA.
+ * SC index is equivalent to {SC_Index[4:2], 1'b0}.
+ * SA index is equivalent to {SC_Index[4:2], SC entry's current AN[1:0]
+ * 2'b10: 1 SC has 2 SA.
+ * SC index is equivalent to SC_Index[4:1]
+ * SA index is equivalent to {SC_Index[4:1], SC entry's current AN[0]}
+ * 2'b11: 1 SC has 1 SA. No SC entry exists for the specific SA.
+ * SA index is equivalent to SC_Index[4:0]
+ * Note: if specified as 2'b11, hardware AN roll over is not
+ * supported.
+ */
+ u32 sc_sa;
+ /*! 0: the packets will be sent to MAC FIFO
+ * 1: The packets will be sent to Debug/Loopback FIFO.
+ * If the above's action is drop, this bit has no meaning.
+ */
+ u32 debug;
+ /*! 0: forward to remaining modules
+ * 1: bypass the next encryption modules. This packet is considered
+ * un-control packet.
+ * 2: drop
+ * 3: Reserved.
+ */
+ u32 action;
+ /*! 0: Not valid entry. This entry is not used
+ * 1: valid entry.
+ */
+ u32 valid;
+};
+
+/*! Represents the bitfields of a single row in the Egress SC Lookup table. */
+struct aq_mss_egress_sc_record {
+ /*! This is to specify when the SC was first used. Set by HW. */
+ u32 start_time;
+ /*! This is to specify when the SC was last used. Set by HW. */
+ u32 stop_time;
+ /*! This is to specify which of the SA entries are used by current HW.
+ * Note: This value need to be set by SW after reset. It will be
+ * automatically updated by HW, if AN roll over is enabled.
+ */
+ u32 curr_an;
+ /*! 0: Clear the SA Valid Bit after PN expiry.
+ * 1: Do not Clear the SA Valid bit after PN expiry of the current SA.
+ * When the Enable AN roll over is set, S/W does not need to
+ * program the new SA's and the H/W will automatically roll over
+ * between the SA's without session expiry.
+ * For normal operation, Enable AN Roll over will be set to '0'
+ * and in which case, the SW needs to program the new SA values
+ * after the current PN expires.
+ */
+ u32 an_roll;
+ /*! This is the TCI field used if packet is not explicitly tagged. */
+ u32 tci;
+ /*! This value indicates the offset where the decryption will start.
+ * [[Values of 0, 4, 8-50].
+ */
+ u32 enc_off;
+ /*! 0: Do not protect frames, all the packets will be forwarded
+ * unchanged. MIB counter (OutPktsUntagged) will be updated.
+ * 1: Protect.
+ */
+ u32 protect;
+ /*! 0: when none of the SA related to SC has inUse set.
+ * 1: when either of the SA related to the SC has inUse set.
+ * This bit is set by HW.
+ */
+ u32 recv;
+ /*! 0: H/W Clears this bit on the first use.
+ * 1: SW updates this entry, when programming the SC Table.
+ */
+ u32 fresh;
+ /*! AES Key size
+ * 00 - 128bits
+ * 01 - 192bits
+ * 10 - 256bits
+ * 11 - Reserved.
+ */
+ u32 sak_len;
+ /*! 0: Invalid SC
+ * 1: Valid SC.
+ */
+ u32 valid;
+};
+
+/*! Represents the bitfields of a single row in the Egress SA Lookup table. */
+struct aq_mss_egress_sa_record {
+ /*! This is to specify when the SC was first used. Set by HW. */
+ u32 start_time;
+ /*! This is to specify when the SC was last used. Set by HW. */
+ u32 stop_time;
+ /*! This is set by SW and updated by HW to store the Next PN number
+ * used for encryption.
+ */
+ u32 next_pn;
+ /*! The Next_PN number is going to wrapped around from 0xFFFF_FFFF
+ * to 0. set by HW.
+ */
+ u32 sat_pn;
+ /*! 0: This SA is in use.
+ * 1: This SA is Fresh and set by SW.
+ */
+ u32 fresh;
+ /*! 0: Invalid SA
+ * 1: Valid SA.
+ */
+ u32 valid;
+};
+
+/*! Represents the bitfields of a single row in the Egress SA Key
+ * Lookup table.
+ */
+struct aq_mss_egress_sakey_record {
+ /*! Key for AES-GCM processing. */
+ u32 key[8];
+};
+
+#endif
OSDN Git Service
