net: atlantic: MACSec egress offload HW bindings

This patch adds the Atlantic HW-specific bindings for MACSec egress, e.g.
register addresses / structs, helper function, etc, which will be used by
actual callback implementations.

Signed-off-by: Dmitry Bogdanov <dbogdanov@marvell.com>
Signed-off-by: Mark Starovoytov <mstarovoitov@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Dmitry Bogdanov 2020-03-25 15:52:40 +03:00 committed by David S. Miller
parent 62c1c2e606
commit 9d106c6dd8
5 changed files with 1451 additions and 1 deletions

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@ -24,7 +24,8 @@ atlantic-objs := aq_main.o \
hw_atl/hw_atl_b0.o \
hw_atl/hw_atl_utils.o \
hw_atl/hw_atl_utils_fw2x.o \
hw_atl/hw_atl_llh.o
hw_atl/hw_atl_llh.o \
macsec/macsec_api.o
atlantic-$(CONFIG_MACSEC) += aq_macsec.o

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@ -0,0 +1,73 @@
/* SPDX-License-Identifier: GPL-2.0-only */
/* Atlantic Network Driver
* Copyright (C) 2020 Marvell International Ltd.
*/
#ifndef MSS_EGRESS_REGS_HEADER
#define MSS_EGRESS_REGS_HEADER
#define MSS_EGRESS_CTL_REGISTER_ADDR 0x00005002
#define MSS_EGRESS_SA_EXPIRED_STATUS_REGISTER_ADDR 0x00005060
#define MSS_EGRESS_SA_THRESHOLD_EXPIRED_STATUS_REGISTER_ADDR 0x00005062
#define MSS_EGRESS_LUT_ADDR_CTL_REGISTER_ADDR 0x00005080
#define MSS_EGRESS_LUT_CTL_REGISTER_ADDR 0x00005081
#define MSS_EGRESS_LUT_DATA_CTL_REGISTER_ADDR 0x000050A0
struct mss_egress_ctl_register {
union {
struct {
unsigned int soft_reset : 1;
unsigned int drop_kay_packet : 1;
unsigned int drop_egprc_lut_miss : 1;
unsigned int gcm_start : 1;
unsigned int gcm_test_mode : 1;
unsigned int unmatched_use_sc_0 : 1;
unsigned int drop_invalid_sa_sc_packets : 1;
unsigned int reserved0 : 1;
/* Should always be set to 0. */
unsigned int external_classification_enable : 1;
unsigned int icv_lsb_8bytes_enable : 1;
unsigned int high_prio : 1;
unsigned int clear_counter : 1;
unsigned int clear_global_time : 1;
unsigned int ethertype_explicit_sectag_lsb : 3;
} bits_0;
unsigned short word_0;
};
union {
struct {
unsigned int ethertype_explicit_sectag_msb : 13;
unsigned int reserved0 : 3;
} bits_1;
unsigned short word_1;
};
};
struct mss_egress_lut_addr_ctl_register {
union {
struct {
unsigned int lut_addr : 9;
unsigned int reserved0 : 3;
/* 0x0 : Egress MAC Control FIlter (CTLF) LUT
* 0x1 : Egress Classification LUT
* 0x2 : Egress SC/SA LUT
* 0x3 : Egress SMIB
*/
unsigned int lut_select : 4;
} bits_0;
unsigned short word_0;
};
};
struct mss_egress_lut_ctl_register {
union {
struct {
unsigned int reserved0 : 14;
unsigned int lut_read : 1;
unsigned int lut_write : 1;
} bits_0;
unsigned short word_0;
};
};
#endif /* MSS_EGRESS_REGS_HEADER */

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@ -0,0 +1,931 @@
// 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);
}

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/* SPDX-License-Identifier: GPL-2.0-only */
/* Atlantic Network Driver
* Copyright (C) 2020 Marvell International Ltd.
*/
#ifndef __MACSEC_API_H__
#define __MACSEC_API_H__
#include "aq_hw.h"
#include "macsec_struct.h"
#define NUMROWS_EGRESSCTLFRECORD 24
#define ROWOFFSET_EGRESSCTLFRECORD 0
#define NUMROWS_EGRESSCLASSRECORD 48
#define ROWOFFSET_EGRESSCLASSRECORD 0
#define NUMROWS_EGRESSSCRECORD 32
#define ROWOFFSET_EGRESSSCRECORD 0
#define NUMROWS_EGRESSSARECORD 32
#define ROWOFFSET_EGRESSSARECORD 32
#define NUMROWS_EGRESSSAKEYRECORD 32
#define ROWOFFSET_EGRESSSAKEYRECORD 96
/*! Read the raw table data from the specified row of the Egress CTL
* Filter table, and unpack it into the fields of rec.
* rec - [OUT] The raw table row data will be unpacked into the fields of rec.
* table_index - The table row to read (max 23).
*/
int aq_mss_get_egress_ctlf_record(struct aq_hw_s *hw,
struct aq_mss_egress_ctlf_record *rec,
u16 table_index);
/*! Pack the fields of rec, and write the packed data into the
* specified row of the Egress CTL Filter table.
* rec - [IN] The bitfield values to write to the table row.
* table_index - The table row to write(max 23).
*/
int aq_mss_set_egress_ctlf_record(struct aq_hw_s *hw,
const struct aq_mss_egress_ctlf_record *rec,
u16 table_index);
/*! Read the raw table data from the specified row of the Egress
* Packet Classifier table, and unpack it into the fields of rec.
* rec - [OUT] The raw table row data will be unpacked into the fields of rec.
* table_index - The table row to read (max 47).
*/
int aq_mss_get_egress_class_record(struct aq_hw_s *hw,
struct aq_mss_egress_class_record *rec,
u16 table_index);
/*! Pack the fields of rec, and write the packed data into the
* specified row of the Egress Packet Classifier table.
* rec - [IN] The bitfield values to write to the table row.
* table_index - The table row to write (max 47).
*/
int aq_mss_set_egress_class_record(struct aq_hw_s *hw,
const struct aq_mss_egress_class_record *rec,
u16 table_index);
/*! Read the raw table data from the specified row of the Egress SC
* Lookup table, and unpack it into the fields of rec.
* rec - [OUT] The raw table row data will be unpacked into the fields of rec.
* table_index - The table row to read (max 31).
*/
int aq_mss_get_egress_sc_record(struct aq_hw_s *hw,
struct aq_mss_egress_sc_record *rec,
u16 table_index);
/*! Pack the fields of rec, and write the packed data into the
* specified row of the Egress SC Lookup table.
* rec - [IN] The bitfield values to write to the table row.
* table_index - The table row to write (max 31).
*/
int aq_mss_set_egress_sc_record(struct aq_hw_s *hw,
const struct aq_mss_egress_sc_record *rec,
u16 table_index);
/*! Read the raw table data from the specified row of the Egress SA
* Lookup table, and unpack it into the fields of rec.
* rec - [OUT] The raw table row data will be unpacked into the fields of rec.
* table_index - The table row to read (max 31).
*/
int aq_mss_get_egress_sa_record(struct aq_hw_s *hw,
struct aq_mss_egress_sa_record *rec,
u16 table_index);
/*! Pack the fields of rec, and write the packed data into the
* specified row of the Egress SA Lookup table.
* rec - [IN] The bitfield values to write to the table row.
* table_index - The table row to write (max 31).
*/
int aq_mss_set_egress_sa_record(struct aq_hw_s *hw,
const struct aq_mss_egress_sa_record *rec,
u16 table_index);
/*! Read the raw table data from the specified row of the Egress SA
* Key Lookup table, and unpack it into the fields of rec.
* rec - [OUT] The raw table row data will be unpacked into the fields of rec.
* table_index - The table row to read (max 31).
*/
int aq_mss_get_egress_sakey_record(struct aq_hw_s *hw,
struct aq_mss_egress_sakey_record *rec,
u16 table_index);
/*! Pack the fields of rec, and write the packed data into the
* specified row of the Egress SA Key Lookup table.
* rec - [IN] The bitfield values to write to the table row.
* table_index - The table row to write (max 31).
*/
int aq_mss_set_egress_sakey_record(struct aq_hw_s *hw,
const struct aq_mss_egress_sakey_record *rec,
u16 table_index);
/*! Get Egress SA expired. */
int aq_mss_get_egress_sa_expired(struct aq_hw_s *hw, u32 *expired);
/*! Get Egress SA threshold expired. */
int aq_mss_get_egress_sa_threshold_expired(struct aq_hw_s *hw,
u32 *expired);
/*! Set Egress SA expired. */
int aq_mss_set_egress_sa_expired(struct aq_hw_s *hw, u32 expired);
/*! Set Egress SA threshold expired. */
int aq_mss_set_egress_sa_threshold_expired(struct aq_hw_s *hw,
u32 expired);
#endif /* __MACSEC_API_H__ */

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/* 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