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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
committed by
David S. Miller
David S. Miller
parent
62c1c2e606
commit
9d106c6dd8
@@ -24,7 +24,8 @@ atlantic-objs := aq_main.o \
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hw_atl/hw_atl_b0.o \
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hw_atl/hw_atl_utils.o \
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hw_atl/hw_atl_utils_fw2x.o \
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hw_atl/hw_atl_llh.o
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hw_atl/hw_atl_llh.o \
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macsec/macsec_api.o
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atlantic-$(CONFIG_MACSEC) += aq_macsec.o
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@@ -0,0 +1,73 @@
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/* SPDX-License-Identifier: GPL-2.0-only */
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/* Atlantic Network Driver
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* Copyright (C) 2020 Marvell International Ltd.
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*/
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#ifndef MSS_EGRESS_REGS_HEADER
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#define MSS_EGRESS_REGS_HEADER
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#define MSS_EGRESS_CTL_REGISTER_ADDR 0x00005002
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#define MSS_EGRESS_SA_EXPIRED_STATUS_REGISTER_ADDR 0x00005060
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#define MSS_EGRESS_SA_THRESHOLD_EXPIRED_STATUS_REGISTER_ADDR 0x00005062
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#define MSS_EGRESS_LUT_ADDR_CTL_REGISTER_ADDR 0x00005080
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#define MSS_EGRESS_LUT_CTL_REGISTER_ADDR 0x00005081
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#define MSS_EGRESS_LUT_DATA_CTL_REGISTER_ADDR 0x000050A0
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struct mss_egress_ctl_register {
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union {
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struct {
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unsigned int soft_reset : 1;
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unsigned int drop_kay_packet : 1;
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unsigned int drop_egprc_lut_miss : 1;
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unsigned int gcm_start : 1;
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unsigned int gcm_test_mode : 1;
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unsigned int unmatched_use_sc_0 : 1;
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unsigned int drop_invalid_sa_sc_packets : 1;
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unsigned int reserved0 : 1;
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/* Should always be set to 0. */
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unsigned int external_classification_enable : 1;
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unsigned int icv_lsb_8bytes_enable : 1;
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unsigned int high_prio : 1;
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unsigned int clear_counter : 1;
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unsigned int clear_global_time : 1;
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unsigned int ethertype_explicit_sectag_lsb : 3;
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} bits_0;
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unsigned short word_0;
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};
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union {
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struct {
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unsigned int ethertype_explicit_sectag_msb : 13;
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unsigned int reserved0 : 3;
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} bits_1;
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unsigned short word_1;
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};
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};
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struct mss_egress_lut_addr_ctl_register {
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union {
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struct {
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unsigned int lut_addr : 9;
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unsigned int reserved0 : 3;
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/* 0x0 : Egress MAC Control FIlter (CTLF) LUT
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* 0x1 : Egress Classification LUT
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* 0x2 : Egress SC/SA LUT
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* 0x3 : Egress SMIB
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*/
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unsigned int lut_select : 4;
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} bits_0;
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unsigned short word_0;
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};
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};
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struct mss_egress_lut_ctl_register {
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union {
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struct {
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unsigned int reserved0 : 14;
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unsigned int lut_read : 1;
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unsigned int lut_write : 1;
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} bits_0;
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unsigned short word_0;
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};
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};
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#endif /* MSS_EGRESS_REGS_HEADER */
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931
drivers/net/ethernet/aquantia/atlantic/macsec/macsec_api.c
Normal file
931
drivers/net/ethernet/aquantia/atlantic/macsec/macsec_api.c
Normal file
File diff suppressed because it is too large
Load Diff
128
drivers/net/ethernet/aquantia/atlantic/macsec/macsec_api.h
Normal file
128
drivers/net/ethernet/aquantia/atlantic/macsec/macsec_api.h
Normal file
@@ -0,0 +1,128 @@
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/* SPDX-License-Identifier: GPL-2.0-only */
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/* Atlantic Network Driver
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* Copyright (C) 2020 Marvell International Ltd.
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*/
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#ifndef __MACSEC_API_H__
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#define __MACSEC_API_H__
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#include "aq_hw.h"
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#include "macsec_struct.h"
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#define NUMROWS_EGRESSCTLFRECORD 24
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#define ROWOFFSET_EGRESSCTLFRECORD 0
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#define NUMROWS_EGRESSCLASSRECORD 48
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#define ROWOFFSET_EGRESSCLASSRECORD 0
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#define NUMROWS_EGRESSSCRECORD 32
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#define ROWOFFSET_EGRESSSCRECORD 0
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#define NUMROWS_EGRESSSARECORD 32
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#define ROWOFFSET_EGRESSSARECORD 32
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#define NUMROWS_EGRESSSAKEYRECORD 32
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#define ROWOFFSET_EGRESSSAKEYRECORD 96
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/*! Read the raw table data from the specified row of the Egress CTL
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* Filter table, and unpack it into the fields of rec.
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* rec - [OUT] The raw table row data will be unpacked into the fields of rec.
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* table_index - The table row to read (max 23).
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*/
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int aq_mss_get_egress_ctlf_record(struct aq_hw_s *hw,
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struct aq_mss_egress_ctlf_record *rec,
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u16 table_index);
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/*! Pack the fields of rec, and write the packed data into the
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* specified row of the Egress CTL Filter table.
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* rec - [IN] The bitfield values to write to the table row.
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* table_index - The table row to write(max 23).
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*/
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int aq_mss_set_egress_ctlf_record(struct aq_hw_s *hw,
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const struct aq_mss_egress_ctlf_record *rec,
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u16 table_index);
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/*! Read the raw table data from the specified row of the Egress
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* Packet Classifier table, and unpack it into the fields of rec.
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* rec - [OUT] The raw table row data will be unpacked into the fields of rec.
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* table_index - The table row to read (max 47).
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*/
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int aq_mss_get_egress_class_record(struct aq_hw_s *hw,
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struct aq_mss_egress_class_record *rec,
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u16 table_index);
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/*! Pack the fields of rec, and write the packed data into the
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* specified row of the Egress Packet Classifier table.
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* rec - [IN] The bitfield values to write to the table row.
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* table_index - The table row to write (max 47).
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*/
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int aq_mss_set_egress_class_record(struct aq_hw_s *hw,
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const struct aq_mss_egress_class_record *rec,
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u16 table_index);
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/*! Read the raw table data from the specified row of the Egress SC
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* Lookup table, and unpack it into the fields of rec.
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* rec - [OUT] The raw table row data will be unpacked into the fields of rec.
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* table_index - The table row to read (max 31).
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*/
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int aq_mss_get_egress_sc_record(struct aq_hw_s *hw,
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struct aq_mss_egress_sc_record *rec,
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u16 table_index);
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/*! Pack the fields of rec, and write the packed data into the
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* specified row of the Egress SC Lookup table.
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* rec - [IN] The bitfield values to write to the table row.
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* table_index - The table row to write (max 31).
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*/
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int aq_mss_set_egress_sc_record(struct aq_hw_s *hw,
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const struct aq_mss_egress_sc_record *rec,
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u16 table_index);
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/*! Read the raw table data from the specified row of the Egress SA
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* Lookup table, and unpack it into the fields of rec.
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* rec - [OUT] The raw table row data will be unpacked into the fields of rec.
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* table_index - The table row to read (max 31).
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*/
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int aq_mss_get_egress_sa_record(struct aq_hw_s *hw,
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struct aq_mss_egress_sa_record *rec,
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u16 table_index);
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/*! Pack the fields of rec, and write the packed data into the
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* specified row of the Egress SA Lookup table.
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* rec - [IN] The bitfield values to write to the table row.
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* table_index - The table row to write (max 31).
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*/
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int aq_mss_set_egress_sa_record(struct aq_hw_s *hw,
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const struct aq_mss_egress_sa_record *rec,
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u16 table_index);
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/*! Read the raw table data from the specified row of the Egress SA
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* Key Lookup table, and unpack it into the fields of rec.
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* rec - [OUT] The raw table row data will be unpacked into the fields of rec.
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* table_index - The table row to read (max 31).
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*/
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int aq_mss_get_egress_sakey_record(struct aq_hw_s *hw,
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struct aq_mss_egress_sakey_record *rec,
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u16 table_index);
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/*! Pack the fields of rec, and write the packed data into the
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* specified row of the Egress SA Key Lookup table.
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* rec - [IN] The bitfield values to write to the table row.
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* table_index - The table row to write (max 31).
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*/
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int aq_mss_set_egress_sakey_record(struct aq_hw_s *hw,
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const struct aq_mss_egress_sakey_record *rec,
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u16 table_index);
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/*! Get Egress SA expired. */
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int aq_mss_get_egress_sa_expired(struct aq_hw_s *hw, u32 *expired);
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/*! Get Egress SA threshold expired. */
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int aq_mss_get_egress_sa_threshold_expired(struct aq_hw_s *hw,
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u32 *expired);
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/*! Set Egress SA expired. */
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int aq_mss_set_egress_sa_expired(struct aq_hw_s *hw, u32 expired);
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/*! Set Egress SA threshold expired. */
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int aq_mss_set_egress_sa_threshold_expired(struct aq_hw_s *hw,
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u32 expired);
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#endif /* __MACSEC_API_H__ */
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317
drivers/net/ethernet/aquantia/atlantic/macsec/macsec_struct.h
Normal file
317
drivers/net/ethernet/aquantia/atlantic/macsec/macsec_struct.h
Normal file
@@ -0,0 +1,317 @@
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/* SPDX-License-Identifier: GPL-2.0-only */
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/* Atlantic Network Driver
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* Copyright (C) 2020 Marvell International Ltd.
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*/
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#ifndef _MACSEC_STRUCT_H_
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#define _MACSEC_STRUCT_H_
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/*! Represents the bitfields of a single row in the Egress CTL Filter
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* table.
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*/
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struct aq_mss_egress_ctlf_record {
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/*! This is used to store the 48 bit value used to compare SA, DA or
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* halfDA+half SA value.
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*/
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u32 sa_da[2];
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/*! This is used to store the 16 bit ethertype value used for
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* comparison.
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*/
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u32 eth_type;
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/*! The match mask is per-nibble. 0 means don't care, i.e. every value
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* will match successfully. The total data is 64 bit, i.e. 16 nibbles
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* masks.
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*/
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u32 match_mask;
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/*! 0: No compare, i.e. This entry is not used
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* 1: compare DA only
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* 2: compare SA only
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* 3: compare half DA + half SA
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* 4: compare ether type only
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* 5: compare DA + ethertype
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* 6: compare SA + ethertype
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* 7: compare DA+ range.
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*/
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u32 match_type;
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/*! 0: Bypass the remaining modules if matched.
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* 1: Forward to next module for more classifications.
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*/
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u32 action;
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};
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/*! Represents the bitfields of a single row in the Egress Packet
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* Classifier table.
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*/
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struct aq_mss_egress_class_record {
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/*! VLAN ID field. */
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u32 vlan_id;
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/*! VLAN UP field. */
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u32 vlan_up;
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/*! VLAN Present in the Packet. */
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u32 vlan_valid;
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/*! The 8 bit value used to compare with extracted value for byte 3. */
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u32 byte3;
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/*! The 8 bit value used to compare with extracted value for byte 2. */
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u32 byte2;
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/*! The 8 bit value used to compare with extracted value for byte 1. */
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u32 byte1;
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/*! The 8 bit value used to compare with extracted value for byte 0. */
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u32 byte0;
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/*! The 8 bit TCI field used to compare with extracted value. */
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u32 tci;
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/*! The 64 bit SCI field in the SecTAG. */
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u32 sci[2];
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/*! The 16 bit Ethertype (in the clear) field used to compare with
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* extracted value.
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*/
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u32 eth_type;
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/*! This is to specify the 40bit SNAP header if the SNAP header's mask
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* is enabled.
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*/
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u32 snap[2];
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/*! This is to specify the 24bit LLC header if the LLC header's mask is
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* enabled.
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*/
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u32 llc;
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/*! The 48 bit MAC_SA field used to compare with extracted value. */
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u32 mac_sa[2];
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/*! The 48 bit MAC_DA field used to compare with extracted value. */
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u32 mac_da[2];
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/*! The 32 bit Packet number used to compare with extracted value. */
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u32 pn;
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/*! 0~63: byte location used extracted by packets comparator, which
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* can be anything from the first 64 bytes of the MAC packets.
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* This byte location counted from MAC' DA address. i.e. set to 0
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* will point to byte 0 of DA address.
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*/
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u32 byte3_location;
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/*! 0: don't care
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* 1: enable comparison of extracted byte pointed by byte 3 location.
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*/
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u32 byte3_mask;
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/*! 0~63: byte location used extracted by packets comparator, which
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* can be anything from the first 64 bytes of the MAC packets.
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* This byte location counted from MAC' DA address. i.e. set to 0
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* will point to byte 0 of DA address.
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*/
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u32 byte2_location;
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/*! 0: don't care
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* 1: enable comparison of extracted byte pointed by byte 2 location.
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*/
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u32 byte2_mask;
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/*! 0~63: byte location used extracted by packets comparator, which
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* can be anything from the first 64 bytes of the MAC packets.
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* This byte location counted from MAC' DA address. i.e. set to 0
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* will point to byte 0 of DA address.
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*/
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u32 byte1_location;
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/*! 0: don't care
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* 1: enable comparison of extracted byte pointed by byte 1 location.
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*/
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u32 byte1_mask;
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/*! 0~63: byte location used extracted by packets comparator, which
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* can be anything from the first 64 bytes of the MAC packets.
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* This byte location counted from MAC' DA address. i.e. set to 0
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* will point to byte 0 of DA address.
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*/
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u32 byte0_location;
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/*! 0: don't care
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* 1: enable comparison of extracted byte pointed by byte 0 location.
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*/
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u32 byte0_mask;
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/*! Mask is per-byte.
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* 0: don't care
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* 1: enable comparison of extracted VLAN ID field.
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*/
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u32 vlan_id_mask;
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/*! 0: don't care
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* 1: enable comparison of extracted VLAN UP field.
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*/
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u32 vlan_up_mask;
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/*! 0: don't care
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* 1: enable comparison of extracted VLAN Valid field.
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*/
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u32 vlan_valid_mask;
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/*! This is bit mask to enable comparison the 8 bit TCI field,
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* including the AN field.
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* For explicit SECTAG, AN is hardware controlled. For sending
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* packet w/ explicit SECTAG, rest of the TCI fields are directly
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* from the SECTAG.
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*/
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u32 tci_mask;
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/*! Mask is per-byte.
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* 0: don't care
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* 1: enable comparison of SCI
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* Note: If this field is not 0, this means the input packet's
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* SECTAG is explicitly tagged and MACSEC module will only update
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* the MSDU.
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* PN number is hardware controlled.
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*/
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u32 sci_mask;
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/*! Mask is per-byte.
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* 0: don't care
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* 1: enable comparison of Ethertype.
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*/
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u32 eth_type_mask;
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/*! Mask is per-byte.
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* 0: don't care and no SNAP header exist.
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* 1: compare the SNAP header.
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* If this bit is set to 1, the extracted filed will assume the
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* SNAP header exist as encapsulated in 802.3 (RFC 1042). I.E. the
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* next 5 bytes after the the LLC header is SNAP header.
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*/
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u32 snap_mask;
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/*! 0: don't care and no LLC header exist.
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* 1: compare the LLC header.
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* If this bit is set to 1, the extracted filed will assume the
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* LLC header exist as encapsulated in 802.3 (RFC 1042). I.E. the
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* next three bytes after the 802.3MAC header is LLC header.
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*/
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u32 llc_mask;
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/*! Mask is per-byte.
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* 0: don't care
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* 1: enable comparison of MAC_SA.
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*/
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u32 sa_mask;
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/*! Mask is per-byte.
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* 0: don't care
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* 1: enable comparison of MAC_DA.
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*/
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u32 da_mask;
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/*! Mask is per-byte. */
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u32 pn_mask;
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/*! Reserved. This bit should be always 0. */
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u32 eight02dot2;
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/*! 1: For explicit sectag case use TCI_SC from table
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* 0: use TCI_SC from explicit sectag.
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*/
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u32 tci_sc;
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/*! 1: For explicit sectag case,use TCI_V,ES,SCB,E,C from table
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* 0: use TCI_V,ES,SCB,E,C from explicit sectag.
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*/
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u32 tci_87543;
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/*! 1: indicates that incoming packet has explicit sectag. */
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u32 exp_sectag_en;
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/*! If packet matches and tagged as controlled-packet, this SC/SA
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* index is used for later SC and SA table lookup.
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*/
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u32 sc_idx;
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/*! This field is used to specify how many SA entries are
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* associated with 1 SC entry.
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* 2'b00: 1 SC has 4 SA.
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* SC index is equivalent to {SC_Index[4:2], 1'b0}.
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* 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
|
||||
Reference in New Issue
Block a user