--- /dev/null
+/*
+ * Copyright 2008-2013 Freescale Semiconductor, Inc.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause or GPL-2.0+
+ */
+
+#ifndef __DESC_PDCP_H__
+#define __DESC_PDCP_H__
+
+#include "hw/rta.h"
+#include "common.h"
+
+/**
+ * DOC: PDCP Shared Descriptor Constructors
+ *
+ * Shared descriptors for PDCP protocol.
+ */
+
+/**
+ * PDCP_NULL_MAX_FRAME_LEN - The maximum frame frame length that is supported by
+ * PDCP NULL protocol.
+ */
+#define PDCP_NULL_MAX_FRAME_LEN 0x00002FFF
+
+/**
+ * PDCP_MAC_I_LEN - The length of the MAC-I for PDCP protocol operation
+ */
+#define PDCP_MAC_I_LEN 0x00000004
+
+/**
+ * PDCP_MAX_FRAME_LEN_STATUS - The status returned in FD status/command field in
+ * case the input frame is larger than
+ * PDCP_NULL_MAX_FRAME_LEN.
+ */
+#define PDCP_MAX_FRAME_LEN_STATUS 0xF1
+
+/**
+ * PDCP_C_PLANE_SN_MASK - This mask is used in the PDCP descriptors for
+ * extracting the sequence number (SN) from the PDCP
+ * Control Plane header. For PDCP Control Plane, the SN
+ * is constant (5 bits) as opposed to PDCP Data Plane
+ * (7/12/15 bits).
+ */
+#define PDCP_C_PLANE_SN_MASK 0x1F000000
+#define PDCP_C_PLANE_SN_MASK_BE 0x0000001F
+
+/**
+ * PDCP_U_PLANE_15BIT_SN_MASK - This mask is used in the PDCP descriptors for
+ * extracting the sequence number (SN) from the
+ * PDCP User Plane header. For PDCP Control Plane,
+ * the SN is constant (5 bits) as opposed to PDCP
+ * Data Plane (7/12/15 bits).
+ */
+#define PDCP_U_PLANE_15BIT_SN_MASK 0xFF7F0000
+#define PDCP_U_PLANE_15BIT_SN_MASK_BE 0x00007FFF
+
+/**
+ * PDCP_BEARER_MASK - This mask is used masking out the bearer for PDCP
+ * processing with SNOW f9 in LTE.
+ *
+ * The value on which this mask is applied is formatted as below:
+ * Count-C (32 bit) | Bearer (5 bit) | Direction (1 bit) | 0 (26 bits)
+ *
+ * Applying this mask is done for creating the upper 64 bits of the IV needed
+ * for SNOW f9.
+ *
+ * The lower 32 bits of the mask are used for masking the direction for AES
+ * CMAC IV.
+ */
+#define PDCP_BEARER_MASK 0x00000004FFFFFFFFull
+#define PDCP_BEARER_MASK_BE 0xFFFFFFFF04000000ull
+
+/**
+ * PDCP_DIR_MASK - This mask is used masking out the direction for PDCP
+ * processing with SNOW f9 in LTE.
+ *
+ * The value on which this mask is applied is formatted as below:
+ * Bearer (5 bit) | Direction (1 bit) | 0 (26 bits)
+ *
+ * Applying this mask is done for creating the lower 32 bits of the IV needed
+ * for SNOW f9.
+ *
+ * The upper 32 bits of the mask are used for masking the direction for AES
+ * CMAC IV.
+ */
+#define PDCP_DIR_MASK 0x00000000000000F8ull
+#define PDCP_DIR_MASK_BE 0xF800000000000000ull
+
+/**
+ * PDCP_NULL_INT_MAC_I_VAL - The value of the PDCP PDU MAC-I in case NULL
+ * integrity is used.
+ */
+
+#define PDCP_NULL_INT_MAC_I_VAL 0x00000000
+
+/**
+ * PDCP_NULL_INT_ICV_CHECK_FAILED_STATUS - The status used to report ICV check
+ * failed in case of NULL integrity
+ * Control Plane processing.
+ */
+#define PDCP_NULL_INT_ICV_CHECK_FAILED_STATUS 0x0A
+/**
+ * PDCP_DPOVRD_HFN_OV_EN - Value to be used in the FD status/cmd field to
+ * indicate the HFN override mechanism is active for the
+ * frame.
+ */
+#define PDCP_DPOVRD_HFN_OV_EN 0x80000000
+
+/**
+ * PDCP_P4080REV2_HFN_OV_BUFLEN - The length in bytes of the supplementary space
+ * that must be provided by the user at the
+ * beginning of the input frame buffer for
+ * P4080 REV 2.
+ *
+ * The format of the frame buffer is the following:
+ *
+ * |<---PDCP_P4080REV2_HFN_OV_BUFLEN-->|
+ * //===================================||============||==============\\
+ * || PDCP_DPOVRD_HFN_OV_EN | HFN value || PDCP Header|| PDCP Payload ||
+ * \\===================================||============||==============//
+ *
+ * If HFN override mechanism is not desired, then the MSB of the first 4 bytes
+ * must be set to 0b.
+ */
+#define PDCP_P4080REV2_HFN_OV_BUFLEN 4
+
+/**
+ * enum cipher_type_pdcp - Type selectors for cipher types in PDCP protocol OP
+ * instructions.
+ * @PDCP_CIPHER_TYPE_NULL: NULL
+ * @PDCP_CIPHER_TYPE_SNOW: SNOW F8
+ * @PDCP_CIPHER_TYPE_AES: AES
+ * @PDCP_CIPHER_TYPE_ZUC: ZUCE
+ * @PDCP_CIPHER_TYPE_INVALID: invalid option
+ */
+enum cipher_type_pdcp {
+ PDCP_CIPHER_TYPE_NULL,
+ PDCP_CIPHER_TYPE_SNOW,
+ PDCP_CIPHER_TYPE_AES,
+ PDCP_CIPHER_TYPE_ZUC,
+ PDCP_CIPHER_TYPE_INVALID
+};
+
+/**
+ * enum auth_type_pdcp - Type selectors for integrity types in PDCP protocol OP
+ * instructions.
+ * @PDCP_AUTH_TYPE_NULL: NULL
+ * @PDCP_AUTH_TYPE_SNOW: SNOW F9
+ * @PDCP_AUTH_TYPE_AES: AES CMAC
+ * @PDCP_AUTH_TYPE_ZUC: ZUCA
+ * @PDCP_AUTH_TYPE_INVALID: invalid option
+ */
+enum auth_type_pdcp {
+ PDCP_AUTH_TYPE_NULL,
+ PDCP_AUTH_TYPE_SNOW,
+ PDCP_AUTH_TYPE_AES,
+ PDCP_AUTH_TYPE_ZUC,
+ PDCP_AUTH_TYPE_INVALID
+};
+
+/**
+ * enum pdcp_dir - Type selectors for direction for PDCP protocol
+ * @PDCP_DIR_UPLINK: uplink direction
+ * @PDCP_DIR_DOWNLINK: downlink direction
+ * @PDCP_DIR_INVALID: invalid option
+ */
+enum pdcp_dir {
+ PDCP_DIR_UPLINK = 0,
+ PDCP_DIR_DOWNLINK = 1,
+ PDCP_DIR_INVALID
+};
+
+/**
+ * enum pdcp_plane - PDCP domain selectors
+ * @PDCP_CONTROL_PLANE: Control Plane
+ * @PDCP_DATA_PLANE: Data Plane
+ * @PDCP_SHORT_MAC: Short MAC
+ */
+enum pdcp_plane {
+ PDCP_CONTROL_PLANE,
+ PDCP_DATA_PLANE,
+ PDCP_SHORT_MAC
+};
+
+/**
+ * enum pdcp_sn_size - Sequence Number Size selectors for PDCP protocol
+ * @PDCP_SN_SIZE_5: 5bit sequence number
+ * @PDCP_SN_SIZE_7: 7bit sequence number
+ * @PDCP_SN_SIZE_12: 12bit sequence number
+ * @PDCP_SN_SIZE_15: 15bit sequence number
+ * @PDCP_SN_SIZE_18: 18bit sequence number
+ */
+enum pdcp_sn_size {
+ PDCP_SN_SIZE_5 = 5,
+ PDCP_SN_SIZE_7 = 7,
+ PDCP_SN_SIZE_12 = 12,
+ PDCP_SN_SIZE_15 = 15
+};
+
+/*
+ * PDCP Control Plane Protocol Data Blocks
+ */
+#define PDCP_C_PLANE_PDB_HFN_SHIFT 5
+#define PDCP_C_PLANE_PDB_BEARER_SHIFT 27
+#define PDCP_C_PLANE_PDB_DIR_SHIFT 26
+#define PDCP_C_PLANE_PDB_HFN_THR_SHIFT 5
+
+#define PDCP_U_PLANE_PDB_OPT_SHORT_SN 0x2
+#define PDCP_U_PLANE_PDB_OPT_15B_SN 0x4
+#define PDCP_U_PLANE_PDB_SHORT_SN_HFN_SHIFT 7
+#define PDCP_U_PLANE_PDB_LONG_SN_HFN_SHIFT 12
+#define PDCP_U_PLANE_PDB_15BIT_SN_HFN_SHIFT 15
+#define PDCP_U_PLANE_PDB_BEARER_SHIFT 27
+#define PDCP_U_PLANE_PDB_DIR_SHIFT 26
+#define PDCP_U_PLANE_PDB_SHORT_SN_HFN_THR_SHIFT 7
+#define PDCP_U_PLANE_PDB_LONG_SN_HFN_THR_SHIFT 12
+#define PDCP_U_PLANE_PDB_15BIT_SN_HFN_THR_SHIFT 15
+
+struct pdcp_pdb {
+ union {
+ uint32_t opt;
+ uint32_t rsvd;
+ } opt_res;
+ uint32_t hfn_res; /* HyperFrame number,(27, 25 or 21 bits),
+ * left aligned & right-padded with zeros.
+ */
+ uint32_t bearer_dir_res;/* Bearer(5 bits), packet direction (1 bit),
+ * left aligned & right-padded with zeros.
+ */
+ uint32_t hfn_thr_res; /* HyperFrame number threshold (27, 25 or 21
+ * bits), left aligned & right-padded with
+ * zeros.
+ */
+};
+
+/*
+ * PDCP internal PDB types
+ */
+enum pdb_type_e {
+ PDCP_PDB_TYPE_NO_PDB,
+ PDCP_PDB_TYPE_FULL_PDB,
+ PDCP_PDB_TYPE_REDUCED_PDB,
+ PDCP_PDB_TYPE_INVALID
+};
+
+/*
+ * Function for appending the portion of a PDCP Control Plane shared descriptor
+ * which performs NULL encryption and integrity (i.e. copies the input frame
+ * to the output frame, appending 32 bits of zeros at the end (MAC-I for
+ * NULL integrity).
+ */
+static inline int
+pdcp_insert_cplane_null_op(struct program *p,
+ bool swap __maybe_unused,
+ struct alginfo *cipherdata __maybe_unused,
+ struct alginfo *authdata __maybe_unused,
+ unsigned int dir,
+ unsigned char era_2_sw_hfn_ovrd __maybe_unused)
+{
+ LABEL(local_offset);
+ REFERENCE(move_cmd_read_descbuf);
+ REFERENCE(move_cmd_write_descbuf);
+
+ if (rta_sec_era > RTA_SEC_ERA_2) {
+ MATHB(p, SEQINSZ, ADD, ZERO, VSEQINSZ, 4, 0);
+ if (dir == OP_TYPE_ENCAP_PROTOCOL)
+ MATHB(p, SEQINSZ, ADD, PDCP_MAC_I_LEN, VSEQOUTSZ, 4,
+ IMMED2);
+ else
+ MATHB(p, SEQINSZ, SUB, PDCP_MAC_I_LEN, VSEQOUTSZ, 4,
+ IMMED2);
+ } else {
+ MATHB(p, SEQINSZ, ADD, ONE, VSEQINSZ, 4, 0);
+ MATHB(p, VSEQINSZ, SUB, ONE, VSEQINSZ, 4, 0);
+
+ if (dir == OP_TYPE_ENCAP_PROTOCOL) {
+ MATHB(p, SEQINSZ, ADD, PDCP_MAC_I_LEN, VSEQOUTSZ, 4,
+ IMMED2);
+ MATHB(p, VSEQINSZ, SUB, ONE, MATH0, 4, 0);
+ } else {
+ MATHB(p, VSEQINSZ, SUB, PDCP_MAC_I_LEN, VSEQINSZ, 4,
+ IMMED2);
+ MATHB(p, SEQINSZ, SUB, PDCP_MAC_I_LEN, VSEQOUTSZ, 4,
+ IMMED2);
+ MATHB(p, VSEQOUTSZ, SUB, ONE, MATH0, 4, 0);
+ }
+
+ MATHB(p, MATH0, ADD, ONE, MATH0, 4, 0);
+
+ /*
+ * Since MOVELEN is available only starting with
+ * SEC ERA 3, use poor man's MOVELEN: create a MOVE
+ * command dynamically by writing the length from M1 by
+ * OR-ing the command in the M1 register and MOVE the
+ * result into the descriptor buffer. Care must be taken
+ * wrt. the location of the command because of SEC
+ * pipelining. The actual MOVEs are written at the end
+ * of the descriptor due to calculations needed on the
+ * offset in the descriptor for the MOVE command.
+ */
+ move_cmd_read_descbuf = MOVE(p, DESCBUF, 0, MATH0, 0, 6,
+ IMMED);
+ move_cmd_write_descbuf = MOVE(p, MATH0, 0, DESCBUF, 0, 8,
+ WAITCOMP | IMMED);
+ }
+ MATHB(p, VSEQINSZ, SUB, PDCP_NULL_MAX_FRAME_LEN, NONE, 4,
+ IMMED2);
+ JUMP(p, PDCP_MAX_FRAME_LEN_STATUS, HALT_STATUS, ALL_FALSE, MATH_N);
+
+ if (rta_sec_era > RTA_SEC_ERA_2) {
+ if (dir == OP_TYPE_ENCAP_PROTOCOL)
+ MATHB(p, VSEQINSZ, ADD, ZERO, MATH0, 4, 0);
+ else
+ MATHB(p, VSEQOUTSZ, ADD, ZERO, MATH0, 4, 0);
+ }
+ SEQFIFOSTORE(p, MSG, 0, 0, VLF);
+ SEQFIFOLOAD(p, MSG1, 0, VLF | LAST1 | FLUSH1);
+
+ if (rta_sec_era > RTA_SEC_ERA_2) {
+ MOVE(p, AB1, 0, OFIFO, 0, MATH0, 0);
+ } else {
+ SET_LABEL(p, local_offset);
+
+ /* Shut off automatic Info FIFO entries */
+ LOAD(p, 0, DCTRL, LDOFF_DISABLE_AUTO_NFIFO, 0, IMMED);
+ /* Placeholder for MOVE command with length from M1 register */
+ MOVE(p, IFIFOAB1, 0, OFIFO, 0, 0, IMMED);
+ /* Enable automatic Info FIFO entries */
+ LOAD(p, 0, DCTRL, LDOFF_ENABLE_AUTO_NFIFO, 0, IMMED);
+ }
+
+ if (dir == OP_TYPE_ENCAP_PROTOCOL) {
+ MATHB(p, MATH1, XOR, MATH1, MATH0, 8, 0);
+ MOVE(p, MATH0, 0, OFIFO, 0, 4, IMMED);
+ }
+
+ if (rta_sec_era < RTA_SEC_ERA_3) {
+ PATCH_MOVE(p, move_cmd_read_descbuf, local_offset);
+ PATCH_MOVE(p, move_cmd_write_descbuf, local_offset);
+ }
+
+ return 0;
+}
+
+static inline int
+insert_copy_frame_op(struct program *p,
+ struct alginfo *cipherdata __maybe_unused,
+ unsigned int dir __maybe_unused)
+{
+ LABEL(local_offset);
+ REFERENCE(move_cmd_read_descbuf);
+ REFERENCE(move_cmd_write_descbuf);
+
+ if (rta_sec_era > RTA_SEC_ERA_2) {
+ MATHB(p, SEQINSZ, ADD, ZERO, VSEQINSZ, 4, 0);
+ MATHB(p, SEQINSZ, ADD, ZERO, VSEQOUTSZ, 4, 0);
+ } else {
+ MATHB(p, SEQINSZ, ADD, ONE, VSEQINSZ, 4, 0);
+ MATHB(p, VSEQINSZ, SUB, ONE, VSEQINSZ, 4, 0);
+ MATHB(p, SEQINSZ, ADD, ONE, VSEQOUTSZ, 4, 0);
+ MATHB(p, VSEQOUTSZ, SUB, ONE, VSEQOUTSZ, 4, 0);
+ MATHB(p, VSEQINSZ, SUB, ONE, MATH0, 4, 0);
+ MATHB(p, MATH0, ADD, ONE, MATH0, 4, 0);
+
+ /*
+ * Since MOVELEN is available only starting with
+ * SEC ERA 3, use poor man's MOVELEN: create a MOVE
+ * command dynamically by writing the length from M1 by
+ * OR-ing the command in the M1 register and MOVE the
+ * result into the descriptor buffer. Care must be taken
+ * wrt. the location of the command because of SEC
+ * pipelining. The actual MOVEs are written at the end
+ * of the descriptor due to calculations needed on the
+ * offset in the descriptor for the MOVE command.
+ */
+ move_cmd_read_descbuf = MOVE(p, DESCBUF, 0, MATH0, 0, 6,
+ IMMED);
+ move_cmd_write_descbuf = MOVE(p, MATH0, 0, DESCBUF, 0, 8,
+ WAITCOMP | IMMED);
+ }
+ MATHB(p, SEQINSZ, SUB, PDCP_NULL_MAX_FRAME_LEN, NONE, 4,
+ IFB | IMMED2);
+ JUMP(p, PDCP_MAX_FRAME_LEN_STATUS, HALT_STATUS, ALL_FALSE, MATH_N);
+
+ if (rta_sec_era > RTA_SEC_ERA_2)
+ MATHB(p, VSEQINSZ, ADD, ZERO, MATH0, 4, 0);
+
+ SEQFIFOLOAD(p, MSG1, 0, VLF | LAST1 | FLUSH1);
+ if (rta_sec_era > RTA_SEC_ERA_2) {
+ MOVE(p, AB1, 0, OFIFO, 0, MATH0, 0);
+ } else {
+ SET_LABEL(p, local_offset);
+
+ /* Shut off automatic Info FIFO entries */
+ LOAD(p, 0, DCTRL, LDOFF_DISABLE_AUTO_NFIFO, 0, IMMED);
+
+ /* Placeholder for MOVE command with length from M0 register */
+ MOVE(p, IFIFOAB1, 0, OFIFO, 0, 0, IMMED);
+
+ /* Enable automatic Info FIFO entries */
+ LOAD(p, 0, DCTRL, LDOFF_ENABLE_AUTO_NFIFO, 0, IMMED);
+ }
+
+ SEQFIFOSTORE(p, MSG, 0, 0, VLF);
+
+ if (rta_sec_era < RTA_SEC_ERA_3) {
+ PATCH_MOVE(p, move_cmd_read_descbuf, local_offset);
+ PATCH_MOVE(p, move_cmd_write_descbuf, local_offset);
+ }
+ return 0;
+}
+
+static inline int
+pdcp_insert_cplane_int_only_op(struct program *p,
+ bool swap __maybe_unused,
+ struct alginfo *cipherdata __maybe_unused,
+ struct alginfo *authdata, unsigned int dir,
+ unsigned char era_2_sw_hfn_ovrd)
+{
+ LABEL(local_offset);
+ REFERENCE(move_cmd_read_descbuf);
+ REFERENCE(move_cmd_write_descbuf);
+
+ switch (authdata->algtype) {
+ case PDCP_AUTH_TYPE_SNOW:
+ /* Insert Auth Key */
+ KEY(p, KEY2, authdata->key_enc_flags, authdata->key,
+ authdata->keylen, INLINE_KEY(authdata));
+ SEQLOAD(p, MATH0, 7, 1, 0);
+ JUMP(p, 1, LOCAL_JUMP, ALL_TRUE, CALM);
+
+ if (rta_sec_era > RTA_SEC_ERA_2 ||
+ (rta_sec_era == RTA_SEC_ERA_2 &&
+ era_2_sw_hfn_ovrd == 0)) {
+ SEQINPTR(p, 0, 1, RTO);
+ } else {
+ SEQINPTR(p, 0, 5, RTO);
+ SEQFIFOLOAD(p, SKIP, 4, 0);
+ }
+
+ if (swap == false) {
+ MATHB(p, MATH0, AND, PDCP_C_PLANE_SN_MASK, MATH1, 8,
+ IFB | IMMED2);
+ MATHB(p, MATH1, SHLD, MATH1, MATH1, 8, 0);
+
+ MOVEB(p, DESCBUF, 8, MATH2, 0, 8, WAITCOMP | IMMED);
+
+ MATHB(p, MATH2, AND, PDCP_BEARER_MASK, MATH2, 8,
+ IMMED2);
+ MOVEB(p, DESCBUF, 0x0C, MATH3, 0, 4, WAITCOMP | IMMED);
+ MATHB(p, MATH3, AND, PDCP_DIR_MASK, MATH3, 8, IMMED2);
+ MATHB(p, MATH1, OR, MATH2, MATH2, 8, 0);
+ MOVEB(p, MATH2, 0, CONTEXT2, 0, 0x0C, WAITCOMP | IMMED);
+ } else {
+ MATHB(p, MATH0, AND, PDCP_C_PLANE_SN_MASK_BE, MATH1, 8,
+ IFB | IMMED2);
+ MATHB(p, MATH1, SHLD, MATH1, MATH1, 8, 0);
+
+ MOVE(p, DESCBUF, 8, MATH2, 0, 8, WAITCOMP | IMMED);
+ MATHB(p, MATH2, AND, PDCP_BEARER_MASK_BE, MATH2, 8,
+ IMMED2);
+
+ MOVE(p, DESCBUF, 0x0C, MATH3, 0, 4, WAITCOMP | IMMED);
+ MATHB(p, MATH3, AND, PDCP_DIR_MASK_BE, MATH3, 8,
+ IMMED2);
+ MATHB(p, MATH1, OR, MATH2, MATH2, 8, 0);
+ MOVE(p, MATH2, 0, CONTEXT2, 0, 0x0C, WAITCOMP | IMMED);
+ }
+
+ if (dir == OP_TYPE_DECAP_PROTOCOL) {
+ MATHB(p, SEQINSZ, SUB, PDCP_MAC_I_LEN, MATH1, 4,
+ IMMED2);
+ } else {
+ if (rta_sec_era > RTA_SEC_ERA_2) {
+ MATHB(p, SEQINSZ, SUB, ZERO, MATH1, 4,
+ 0);
+ } else {
+ MATHB(p, SEQINSZ, ADD, ONE, MATH1, 4,
+ 0);
+ MATHB(p, MATH1, SUB, ONE, MATH1, 4,
+ 0);
+ }
+ }
+
+ if (rta_sec_era > RTA_SEC_ERA_2) {
+ MATHB(p, MATH1, SUB, ZERO, VSEQINSZ, 4, 0);
+ MATHB(p, MATH1, SUB, ZERO, VSEQOUTSZ, 4, 0);
+ } else {
+ MATHB(p, ZERO, ADD, MATH1, VSEQINSZ, 4, 0);
+ MATHB(p, ZERO, ADD, MATH1, VSEQOUTSZ, 4, 0);
+
+ /*
+ * Since MOVELEN is available only starting with
+ * SEC ERA 3, use poor man's MOVELEN: create a MOVE
+ * command dynamically by writing the length from M1 by
+ * OR-ing the command in the M1 register and MOVE the
+ * result into the descriptor buffer. Care must be taken
+ * wrt. the location of the command because of SEC
+ * pipelining. The actual MOVEs are written at the end
+ * of the descriptor due to calculations needed on the
+ * offset in the descriptor for the MOVE command.
+ */
+ move_cmd_read_descbuf = MOVE(p, DESCBUF, 0, MATH1, 0, 6,
+ IMMED);
+ move_cmd_write_descbuf = MOVE(p, MATH1, 0, DESCBUF, 0,
+ 8, WAITCOMP | IMMED);
+ }
+
+ SEQFIFOSTORE(p, MSG, 0, 0, VLF);
+ ALG_OPERATION(p, OP_ALG_ALGSEL_SNOW_F9, OP_ALG_AAI_F9,
+ OP_ALG_AS_INITFINAL,
+ dir == OP_TYPE_ENCAP_PROTOCOL ?
+ ICV_CHECK_DISABLE : ICV_CHECK_ENABLE,
+ DIR_ENC);
+
+ if (rta_sec_era > RTA_SEC_ERA_2) {
+ SEQFIFOLOAD(p, MSGINSNOOP, 0,
+ VLF | LAST1 | LAST2 | FLUSH1);
+ MOVE(p, AB1, 0, OFIFO, 0, MATH1, 0);
+ } else {
+ SEQFIFOLOAD(p, MSGINSNOOP, 0,
+ VLF | LAST1 | LAST2 | FLUSH1);
+ SET_LABEL(p, local_offset);
+
+ /* Shut off automatic Info FIFO entries */
+ LOAD(p, 0, DCTRL, LDOFF_DISABLE_AUTO_NFIFO, 0, IMMED);
+ /*
+ * Placeholder for MOVE command with length from M1
+ * register
+ */
+ MOVE(p, IFIFOAB1, 0, OFIFO, 0, 0, IMMED);
+ /* Enable automatic Info FIFO entries */
+ LOAD(p, 0, DCTRL, LDOFF_ENABLE_AUTO_NFIFO, 0, IMMED);
+ }
+
+ if (dir == OP_TYPE_DECAP_PROTOCOL)
+ SEQFIFOLOAD(p, ICV2, 4, LAST2);
+ else
+ SEQSTORE(p, CONTEXT2, 0, 4, 0);
+
+ break;
+
+ case PDCP_AUTH_TYPE_AES:
+ /* Insert Auth Key */
+ KEY(p, KEY1, authdata->key_enc_flags, authdata->key,
+ authdata->keylen, INLINE_KEY(authdata));
+ SEQLOAD(p, MATH0, 7, 1, 0);
+ JUMP(p, 1, LOCAL_JUMP, ALL_TRUE, CALM);
+ if (rta_sec_era > RTA_SEC_ERA_2 ||
+ (rta_sec_era == RTA_SEC_ERA_2 &&
+ era_2_sw_hfn_ovrd == 0)) {
+ SEQINPTR(p, 0, 1, RTO);
+ } else {
+ SEQINPTR(p, 0, 5, RTO);
+ SEQFIFOLOAD(p, SKIP, 4, 0);
+ }
+
+ if (swap == false) {
+ MATHB(p, MATH0, AND, PDCP_C_PLANE_SN_MASK, MATH1, 8,
+ IFB | IMMED2);
+ MATHB(p, MATH1, SHLD, MATH1, MATH1, 8, 0);
+
+ MOVEB(p, DESCBUF, 8, MATH2, 0, 8, WAITCOMP | IMMED);
+ MATHB(p, MATH1, OR, MATH2, MATH2, 8, 0);
+ MOVEB(p, MATH2, 0, IFIFOAB1, 0, 8, IMMED);
+ } else {
+ MATHB(p, MATH0, AND, PDCP_C_PLANE_SN_MASK_BE, MATH1, 8,
+ IFB | IMMED2);
+ MATHB(p, MATH1, SHLD, MATH1, MATH1, 8, 0);
+
+ MOVE(p, DESCBUF, 8, MATH2, 0, 8, WAITCOMP | IMMED);
+ MATHB(p, MATH1, OR, MATH2, MATH2, 8, 0);
+ MOVE(p, MATH2, 0, IFIFOAB1, 0, 8, IMMED);
+ }
+
+ if (dir == OP_TYPE_DECAP_PROTOCOL) {
+ MATHB(p, SEQINSZ, SUB, PDCP_MAC_I_LEN, MATH1, 4,
+ IMMED2);
+ } else {
+ if (rta_sec_era > RTA_SEC_ERA_2) {
+ MATHB(p, SEQINSZ, SUB, ZERO, MATH1, 4,
+ 0);
+ } else {
+ MATHB(p, SEQINSZ, ADD, ONE, MATH1, 4,
+ 0);
+ MATHB(p, MATH1, SUB, ONE, MATH1, 4,
+ 0);
+ }
+ }
+
+ if (rta_sec_era > RTA_SEC_ERA_2) {
+ MATHB(p, MATH1, SUB, ZERO, VSEQINSZ, 4, 0);
+ MATHB(p, MATH1, SUB, ZERO, VSEQOUTSZ, 4, 0);
+ } else {
+ MATHB(p, ZERO, ADD, MATH1, VSEQINSZ, 4, 0);
+ MATHB(p, ZERO, ADD, MATH1, VSEQOUTSZ, 4, 0);
+
+ /*
+ * Since MOVELEN is available only starting with
+ * SEC ERA 3, use poor man's MOVELEN: create a MOVE
+ * command dynamically by writing the length from M1 by
+ * OR-ing the command in the M1 register and MOVE the
+ * result into the descriptor buffer. Care must be taken
+ * wrt. the location of the command because of SEC
+ * pipelining. The actual MOVEs are written at the end
+ * of the descriptor due to calculations needed on the
+ * offset in the descriptor for the MOVE command.
+ */
+ move_cmd_read_descbuf = MOVE(p, DESCBUF, 0, MATH1, 0, 6,
+ IMMED);
+ move_cmd_write_descbuf = MOVE(p, MATH1, 0, DESCBUF, 0,
+ 8, WAITCOMP | IMMED);
+ }
+ SEQFIFOSTORE(p, MSG, 0, 0, VLF);
+ ALG_OPERATION(p, OP_ALG_ALGSEL_AES,
+ OP_ALG_AAI_CMAC,
+ OP_ALG_AS_INITFINAL,
+ dir == OP_TYPE_ENCAP_PROTOCOL ?
+ ICV_CHECK_DISABLE : ICV_CHECK_ENABLE,
+ DIR_ENC);
+
+ if (rta_sec_era > RTA_SEC_ERA_2) {
+ MOVE(p, AB2, 0, OFIFO, 0, MATH1, 0);
+ SEQFIFOLOAD(p, MSGINSNOOP, 0,
+ VLF | LAST1 | LAST2 | FLUSH1);
+ } else {
+ SEQFIFOLOAD(p, MSGINSNOOP, 0,
+ VLF | LAST1 | LAST2 | FLUSH1);
+ SET_LABEL(p, local_offset);
+
+ /* Shut off automatic Info FIFO entries */
+ LOAD(p, 0, DCTRL, LDOFF_DISABLE_AUTO_NFIFO, 0, IMMED);
+
+ /*
+ * Placeholder for MOVE command with length from
+ * M1 register
+ */
+ MOVE(p, IFIFOAB2, 0, OFIFO, 0, 0, IMMED);
+
+ /* Enable automatic Info FIFO entries */
+ LOAD(p, 0, DCTRL, LDOFF_ENABLE_AUTO_NFIFO, 0, IMMED);
+ }
+
+ if (dir == OP_TYPE_DECAP_PROTOCOL)
+ SEQFIFOLOAD(p, ICV1, 4, LAST1 | FLUSH1);
+ else
+ SEQSTORE(p, CONTEXT1, 0, 4, 0);
+
+ break;
+
+ case PDCP_AUTH_TYPE_ZUC:
+ if (rta_sec_era < RTA_SEC_ERA_5) {
+ pr_err("Invalid era for selected algorithm\n");
+ return -ENOTSUP;
+ }
+ /* Insert Auth Key */
+ KEY(p, KEY2, authdata->key_enc_flags, authdata->key,
+ authdata->keylen, INLINE_KEY(authdata));
+ SEQLOAD(p, MATH0, 7, 1, 0);
+ JUMP(p, 1, LOCAL_JUMP, ALL_TRUE, CALM);
+ SEQINPTR(p, 0, 1, RTO);
+ if (swap == false) {
+ MATHB(p, MATH0, AND, PDCP_C_PLANE_SN_MASK, MATH1, 8,
+ IFB | IMMED2);
+ MATHB(p, MATH1, SHLD, MATH1, MATH1, 8, 0);
+
+ MOVEB(p, DESCBUF, 8, MATH2, 0, 8, WAITCOMP | IMMED);
+ MATHB(p, MATH1, OR, MATH2, MATH2, 8, 0);
+ MOVEB(p, MATH2, 0, CONTEXT2, 0, 8, IMMED);
+
+ } else {
+ MATHB(p, MATH0, AND, PDCP_C_PLANE_SN_MASK_BE, MATH1, 8,
+ IFB | IMMED2);
+ MATHB(p, MATH1, SHLD, MATH1, MATH1, 8, 0);
+
+ MOVE(p, DESCBUF, 8, MATH2, 0, 8, WAITCOMP | IMMED);
+ MATHB(p, MATH1, OR, MATH2, MATH2, 8, 0);
+ MOVE(p, MATH2, 0, CONTEXT2, 0, 8, IMMED);
+ }
+ if (dir == OP_TYPE_DECAP_PROTOCOL)
+ MATHB(p, SEQINSZ, SUB, PDCP_MAC_I_LEN, MATH1, 4,
+ IMMED2);
+ else
+ MATHB(p, SEQINSZ, SUB, ZERO, MATH1, 4, 0);
+
+ MATHB(p, MATH1, SUB, ZERO, VSEQINSZ, 4, 0);
+ MATHB(p, MATH1, SUB, ZERO, VSEQOUTSZ, 4, 0);
+ SEQFIFOSTORE(p, MSG, 0, 0, VLF);
+ ALG_OPERATION(p, OP_ALG_ALGSEL_ZUCA,
+ OP_ALG_AAI_F9,
+ OP_ALG_AS_INITFINAL,
+ dir == OP_TYPE_ENCAP_PROTOCOL ?
+ ICV_CHECK_DISABLE : ICV_CHECK_ENABLE,
+ DIR_ENC);
+ SEQFIFOLOAD(p, MSGINSNOOP, 0, VLF | LAST1 | LAST2 | FLUSH1);
+ MOVE(p, AB1, 0, OFIFO, 0, MATH1, 0);
+
+ if (dir == OP_TYPE_DECAP_PROTOCOL)
+ SEQFIFOLOAD(p, ICV2, 4, LAST2);
+ else
+ SEQSTORE(p, CONTEXT2, 0, 4, 0);
+
+ break;
+
+ default:
+ pr_err("%s: Invalid integrity algorithm selected: %d\n",
+ "pdcp_insert_cplane_int_only_op", authdata->algtype);
+ return -EINVAL;
+ }
+
+ if (rta_sec_era < RTA_SEC_ERA_3) {
+ PATCH_MOVE(p, move_cmd_read_descbuf, local_offset);
+ PATCH_MOVE(p, move_cmd_write_descbuf, local_offset);
+ }
+
+ return 0;
+}
+
+static inline int
+pdcp_insert_cplane_enc_only_op(struct program *p,
+ bool swap __maybe_unused,
+ struct alginfo *cipherdata,
+ struct alginfo *authdata __maybe_unused,
+ unsigned int dir,
+ unsigned char era_2_sw_hfn_ovrd __maybe_unused)
+{
+ /* Insert Cipher Key */
+ KEY(p, KEY1, cipherdata->key_enc_flags, cipherdata->key,
+ cipherdata->keylen, INLINE_KEY(cipherdata));
+
+ if (rta_sec_era >= RTA_SEC_ERA_8) {
+ PROTOCOL(p, dir, OP_PCLID_LTE_PDCP_CTRL_MIXED,
+ (uint16_t)cipherdata->algtype << 8);
+ return 0;
+ }
+
+ SEQLOAD(p, MATH0, 7, 1, 0);
+ JUMP(p, 1, LOCAL_JUMP, ALL_TRUE, CALM);
+ if (swap == false)
+ MATHB(p, MATH0, AND, PDCP_C_PLANE_SN_MASK, MATH1, 8,
+ IFB | IMMED2);
+ else
+ MATHB(p, MATH0, AND, PDCP_C_PLANE_SN_MASK_BE, MATH1, 8,
+ IFB | IMMED2);
+ SEQSTORE(p, MATH0, 7, 1, 0);
+ MATHB(p, MATH1, SHLD, MATH1, MATH1, 8, 0);
+ MOVE(p, DESCBUF, 8, MATH2, 0, 8, WAITCOMP | IMMED);
+ MATHB(p, MATH1, OR, MATH2, MATH2, 8, 0);
+
+ switch (cipherdata->algtype) {
+ case PDCP_CIPHER_TYPE_SNOW:
+ MOVE(p, MATH2, 0, CONTEXT1, 0, 8, WAITCOMP | IMMED);
+
+ if (rta_sec_era > RTA_SEC_ERA_2) {
+ MATHB(p, SEQINSZ, SUB, ZERO, VSEQINSZ, 4, 0);
+ } else {
+ MATHB(p, SEQINSZ, SUB, ONE, MATH1, 4, 0);
+ MATHB(p, MATH1, ADD, ONE, VSEQINSZ, 4, 0);
+ }
+
+ if (dir == OP_TYPE_ENCAP_PROTOCOL)
+ MATHB(p, SEQINSZ, ADD, PDCP_MAC_I_LEN, VSEQOUTSZ, 4,
+ IMMED2);
+ else
+ MATHB(p, SEQINSZ, SUB, PDCP_MAC_I_LEN, VSEQOUTSZ, 4,
+ IMMED2);
+ SEQFIFOSTORE(p, MSG, 0, 0, VLF | CONT);
+ ALG_OPERATION(p, OP_ALG_ALGSEL_SNOW_F8,
+ OP_ALG_AAI_F8,
+ OP_ALG_AS_INITFINAL, ICV_CHECK_DISABLE,
+ dir == OP_TYPE_ENCAP_PROTOCOL ?
+ DIR_ENC : DIR_DEC);
+ break;
+
+ case PDCP_CIPHER_TYPE_AES:
+ MOVE(p, MATH2, 0, CONTEXT1, 0x10, 0x10, WAITCOMP | IMMED);
+
+ if (rta_sec_era > RTA_SEC_ERA_2) {
+ MATHB(p, SEQINSZ, SUB, ZERO, VSEQINSZ, 4, 0);
+ } else {
+ MATHB(p, SEQINSZ, SUB, ONE, MATH1, 4, 0);
+ MATHB(p, MATH1, ADD, ONE, VSEQINSZ, 4, 0);
+ }
+
+ if (dir == OP_TYPE_ENCAP_PROTOCOL)
+ MATHB(p, SEQINSZ, ADD, PDCP_MAC_I_LEN, VSEQOUTSZ, 4,
+ IMMED2);
+ else
+ MATHB(p, SEQINSZ, SUB, PDCP_MAC_I_LEN, VSEQOUTSZ, 4,
+ IMMED2);
+
+ SEQFIFOSTORE(p, MSG, 0, 0, VLF | CONT);
+ ALG_OPERATION(p, OP_ALG_ALGSEL_AES,
+ OP_ALG_AAI_CTR,
+ OP_ALG_AS_INITFINAL,
+ ICV_CHECK_DISABLE,
+ dir == OP_TYPE_ENCAP_PROTOCOL ?
+ DIR_ENC : DIR_DEC);
+ break;
+
+ case PDCP_CIPHER_TYPE_ZUC:
+ if (rta_sec_era < RTA_SEC_ERA_5) {
+ pr_err("Invalid era for selected algorithm\n");
+ return -ENOTSUP;
+ }
+
+ MOVE(p, MATH2, 0, CONTEXT1, 0, 0x08, IMMED);
+ MOVE(p, MATH2, 0, CONTEXT1, 0x08, 0x08, WAITCOMP | IMMED);
+ MATHB(p, SEQINSZ, SUB, ZERO, VSEQINSZ, 4, 0);
+ if (dir == OP_TYPE_ENCAP_PROTOCOL)
+ MATHB(p, SEQINSZ, ADD, PDCP_MAC_I_LEN, VSEQOUTSZ, 4,
+ IMMED2);
+ else
+ MATHB(p, SEQINSZ, SUB, PDCP_MAC_I_LEN, VSEQOUTSZ, 4,
+ IMMED2);
+
+ SEQFIFOSTORE(p, MSG, 0, 0, VLF | CONT);
+ ALG_OPERATION(p, OP_ALG_ALGSEL_ZUCE,
+ OP_ALG_AAI_F8,
+ OP_ALG_AS_INITFINAL,
+ ICV_CHECK_DISABLE,
+ dir == OP_TYPE_ENCAP_PROTOCOL ?
+ DIR_ENC : DIR_DEC);
+ break;
+
+ default:
+ pr_err("%s: Invalid encrypt algorithm selected: %d\n",
+ "pdcp_insert_cplane_enc_only_op", cipherdata->algtype);
+ return -EINVAL;
+ }
+
+ if (dir == OP_TYPE_ENCAP_PROTOCOL) {
+ SEQFIFOLOAD(p, MSG1, 0, VLF);
+ FIFOLOAD(p, MSG1, PDCP_NULL_INT_MAC_I_VAL, 4,
+ LAST1 | FLUSH1 | IMMED);
+ } else {
+ SEQFIFOLOAD(p, MSG1, 0, VLF | LAST1 | FLUSH1);
+ MOVE(p, OFIFO, 0, MATH1, 4, PDCP_MAC_I_LEN, WAITCOMP | IMMED);
+ MATHB(p, MATH1, XOR, PDCP_NULL_INT_MAC_I_VAL, NONE, 4, IMMED2);
+ JUMP(p, PDCP_NULL_INT_ICV_CHECK_FAILED_STATUS,
+ HALT_STATUS, ALL_FALSE, MATH_Z);
+ }
+
+ return 0;
+}
+
+static inline int
+pdcp_insert_cplane_acc_op(struct program *p,
+ bool swap __maybe_unused,
+ struct alginfo *cipherdata,
+ struct alginfo *authdata,
+ unsigned int dir,
+ unsigned char era_2_hfn_ovrd __maybe_unused)
+{
+ /* Insert Auth Key */
+ KEY(p, KEY2, authdata->key_enc_flags, authdata->key, authdata->keylen,
+ INLINE_KEY(authdata));
+
+ /* Insert Cipher Key */
+ KEY(p, KEY1, cipherdata->key_enc_flags, cipherdata->key,
+ cipherdata->keylen, INLINE_KEY(cipherdata));
+ PROTOCOL(p, dir, OP_PCLID_LTE_PDCP_CTRL, (uint16_t)cipherdata->algtype);
+
+ return 0;
+}
+
+static inline int
+pdcp_insert_cplane_snow_aes_op(struct program *p,
+ bool swap __maybe_unused,
+ struct alginfo *cipherdata,
+ struct alginfo *authdata,
+ unsigned int dir,
+ unsigned char era_2_sw_hfn_ovrd)
+{
+ LABEL(back_to_sd_offset);
+ LABEL(end_desc);
+ LABEL(local_offset);
+ LABEL(jump_to_beginning);
+ LABEL(fifo_load_mac_i_offset);
+ REFERENCE(seqin_ptr_read);
+ REFERENCE(seqin_ptr_write);
+ REFERENCE(seq_out_read);
+ REFERENCE(jump_back_to_sd_cmd);
+ REFERENCE(move_mac_i_to_desc_buf);
+
+ if (rta_sec_era >= RTA_SEC_ERA_8) {
+ KEY(p, KEY1, cipherdata->key_enc_flags, cipherdata->key,
+ cipherdata->keylen, INLINE_KEY(cipherdata));
+ KEY(p, KEY2, authdata->key_enc_flags, authdata->key,
+ authdata->keylen, INLINE_KEY(authdata));
+
+ PROTOCOL(p, dir, OP_PCLID_LTE_PDCP_CTRL_MIXED,
+ ((uint16_t)cipherdata->algtype << 8) |
+ (uint16_t)authdata->algtype);
+
+ return 0;
+ }
+
+ SEQLOAD(p, MATH0, 7, 1, 0);
+ JUMP(p, 1, LOCAL_JUMP, ALL_TRUE, CALM);
+ if (swap == false)
+ MATHB(p, MATH0, AND, PDCP_C_PLANE_SN_MASK, MATH1, 8,
+ IFB | IMMED2);
+ else
+ MATHB(p, MATH0, AND, PDCP_C_PLANE_SN_MASK_BE, MATH1, 8,
+ IFB | IMMED2);
+ MATHB(p, MATH1, SHLD, MATH1, MATH1, 8, 0);
+ MOVE(p, DESCBUF, 4, MATH2, 0, 0x08, WAITCOMP | IMMED);
+ MATHB(p, MATH1, OR, MATH2, MATH2, 8, 0);
+ SEQSTORE(p, MATH0, 7, 1, 0);
+ if (dir == OP_TYPE_ENCAP_PROTOCOL) {
+ if (rta_sec_era > RTA_SEC_ERA_2 ||
+ (rta_sec_era == RTA_SEC_ERA_2 &&
+ era_2_sw_hfn_ovrd == 0)) {
+ SEQINPTR(p, 0, 1, RTO);
+ } else {
+ SEQINPTR(p, 0, 5, RTO);
+ SEQFIFOLOAD(p, SKIP, 4, 0);
+ }
+ KEY(p, KEY1, authdata->key_enc_flags, authdata->key,
+ authdata->keylen, INLINE_KEY(authdata));
+ MOVE(p, MATH2, 0, IFIFOAB1, 0, 0x08, IMMED);
+
+ if (rta_sec_era > RTA_SEC_ERA_2) {
+ MATHB(p, SEQINSZ, SUB, ZERO, VSEQINSZ, 4, 0);
+ MATHB(p, SEQINSZ, SUB, ZERO, MATH1, 4, 0);
+ MATHB(p, VSEQINSZ, ADD, PDCP_MAC_I_LEN - 1, VSEQOUTSZ,
+ 4, IMMED2);
+ } else {
+ MATHB(p, SEQINSZ, SUB, MATH3, VSEQINSZ, 4, 0);
+ MATHB(p, VSEQINSZ, ADD, PDCP_MAC_I_LEN - 1, VSEQOUTSZ,
+ 4, IMMED2);
+ /*
+ * Note: Although the calculations below might seem a
+ * little off, the logic is the following:
+ *
+ * - SEQ IN PTR RTO below needs the full length of the
+ * frame; in case of P4080_REV_2_HFN_OV_WORKAROUND,
+ * this means the length of the frame to be processed
+ * + 4 bytes (the HFN override flag and value).
+ * The length of the frame to be processed minus 1
+ * byte is in the VSIL register (because
+ * VSIL = SIL + 3, due to 1 byte, the header being
+ * already written by the SEQ STORE above). So for
+ * calculating the length to use in RTO, I add one
+ * to the VSIL value in order to obtain the total
+ * frame length. This helps in case of P4080 which
+ * can have the value 0 as an operand in a MATH
+ * command only as SRC1 When the HFN override
+ * workaround is not enabled, the length of the
+ * frame is given by the SIL register; the
+ * calculation is similar to the one in the SEC 4.2
+ * and SEC 5.3 cases.
+ */
+ if (era_2_sw_hfn_ovrd)
+ MATHB(p, VSEQOUTSZ, ADD, ONE, MATH1, 4,
+ 0);
+ else
+ MATHB(p, SEQINSZ, ADD, MATH3, MATH1, 4,
+ 0);
+ }
+ /*
+ * Placeholder for filling the length in
+ * SEQIN PTR RTO below
+ */
+ seqin_ptr_read = MOVE(p, DESCBUF, 0, MATH1, 0, 6, IMMED);
+ seqin_ptr_write = MOVE(p, MATH1, 0, DESCBUF, 0, 8,
+ WAITCOMP | IMMED);
+ ALG_OPERATION(p, OP_ALG_ALGSEL_AES,
+ OP_ALG_AAI_CMAC,
+ OP_ALG_AS_INITFINAL,
+ ICV_CHECK_DISABLE,
+ DIR_DEC);
+ SEQFIFOLOAD(p, MSG1, 0, VLF | LAST1 | FLUSH1);
+ MOVE(p, CONTEXT1, 0, MATH3, 0, 4, WAITCOMP | IMMED);
+ if (rta_sec_era <= RTA_SEC_ERA_3)
+ LOAD(p, CLRW_CLR_C1KEY |
+ CLRW_CLR_C1CTX |
+ CLRW_CLR_C1ICV |
+ CLRW_CLR_C1DATAS |
+ CLRW_CLR_C1MODE,
+ CLRW, 0, 4, IMMED);
+ else
+ LOAD(p, CLRW_RESET_CLS1_CHA |
+ CLRW_CLR_C1KEY |
+ CLRW_CLR_C1CTX |
+ CLRW_CLR_C1ICV |
+ CLRW_CLR_C1DATAS |
+ CLRW_CLR_C1MODE,
+ CLRW, 0, 4, IMMED);
+
+ if (rta_sec_era <= RTA_SEC_ERA_3)
+ LOAD(p, CCTRL_RESET_CHA_ALL, CCTRL, 0, 4, IMMED);
+
+ KEY(p, KEY1, cipherdata->key_enc_flags, cipherdata->key,
+ cipherdata->keylen, INLINE_KEY(cipherdata));
+ SET_LABEL(p, local_offset);
+ MOVE(p, MATH2, 0, CONTEXT1, 0, 8, IMMED);
+ SEQINPTR(p, 0, 0, RTO);
+
+ if (rta_sec_era == RTA_SEC_ERA_2 && era_2_sw_hfn_ovrd) {
+ SEQFIFOLOAD(p, SKIP, 5, 0);
+ MATHB(p, SEQINSZ, ADD, ONE, SEQINSZ, 4, 0);
+ }
+
+ MATHB(p, SEQINSZ, SUB, ONE, VSEQINSZ, 4, 0);
+ ALG_OPERATION(p, OP_ALG_ALGSEL_SNOW_F8,
+ OP_ALG_AAI_F8,
+ OP_ALG_AS_INITFINAL,
+ ICV_CHECK_DISABLE,
+ DIR_ENC);
+ SEQFIFOSTORE(p, MSG, 0, 0, VLF);
+
+ if (rta_sec_era > RTA_SEC_ERA_2 ||
+ (rta_sec_era == RTA_SEC_ERA_2 &&
+ era_2_sw_hfn_ovrd == 0))
+ SEQFIFOLOAD(p, SKIP, 1, 0);
+
+ SEQFIFOLOAD(p, MSG1, 0, VLF);
+ MOVE(p, MATH3, 0, IFIFOAB1, 0, 4, LAST1 | FLUSH1 | IMMED);
+ PATCH_MOVE(p, seqin_ptr_read, local_offset);
+ PATCH_MOVE(p, seqin_ptr_write, local_offset);
+ } else {
+ MOVE(p, MATH2, 0, CONTEXT1, 0, 8, IMMED);
+
+ if (rta_sec_era >= RTA_SEC_ERA_5)
+ MOVE(p, CONTEXT1, 0, CONTEXT2, 0, 8, IMMED);
+
+ if (rta_sec_era > RTA_SEC_ERA_2)
+ MATHB(p, SEQINSZ, SUB, ZERO, VSEQINSZ, 4, 0);
+ else
+ MATHB(p, SEQINSZ, SUB, MATH3, VSEQINSZ, 4, 0);
+
+ MATHB(p, SEQINSZ, SUB, PDCP_MAC_I_LEN, VSEQOUTSZ, 4, IMMED2);
+/*
+ * TODO: To be changed when proper support is added in RTA (can't load a
+ * command that is also written by RTA (or patch it for that matter).
+ * Change when proper RTA support is added.
+ */
+ if (p->ps)
+ WORD(p, 0x168B0004);
+ else
+ WORD(p, 0x16880404);
+
+ jump_back_to_sd_cmd = JUMP(p, 0, LOCAL_JUMP, ALL_TRUE, 0);
+ /*
+ * Placeholder for command reading the SEQ OUT command in
+ * JD. Done for rereading the decrypted data and performing
+ * the integrity check
+ */
+/*
+ * TODO: RTA currently doesn't support patching of length of a MOVE command
+ * Thus, it is inserted as a raw word, as per PS setting.
+ */
+ if (p->ps)
+ seq_out_read = MOVE(p, DESCBUF, 0, MATH1, 0, 20,
+ WAITCOMP | IMMED);
+ else
+ seq_out_read = MOVE(p, DESCBUF, 0, MATH1, 0, 16,
+ WAITCOMP | IMMED);
+
+ MATHB(p, MATH1, XOR, CMD_SEQ_IN_PTR ^ CMD_SEQ_OUT_PTR, MATH1, 4,
+ IMMED2);
+ /* Placeholder for overwriting the SEQ IN with SEQ OUT */
+/*
+ * TODO: RTA currently doesn't support patching of length of a MOVE command
+ * Thus, it is inserted as a raw word, as per PS setting.
+ */
+ if (p->ps)
+ MOVE(p, MATH1, 0, DESCBUF, 0, 24, IMMED);
+ else
+ MOVE(p, MATH1, 0, DESCBUF, 0, 20, IMMED);
+
+ KEY(p, KEY1, cipherdata->key_enc_flags, cipherdata->key,
+ cipherdata->keylen, INLINE_KEY(cipherdata));
+
+ if (rta_sec_era >= RTA_SEC_ERA_4)
+ MOVE(p, CONTEXT1, 0, CONTEXT2, 0, 8, IMMED);
+ else
+ MOVE(p, CONTEXT1, 0, MATH3, 0, 8, IMMED);
+
+ ALG_OPERATION(p, OP_ALG_ALGSEL_SNOW_F8,
+ OP_ALG_AAI_F8,
+ OP_ALG_AS_INITFINAL,
+ ICV_CHECK_DISABLE,
+ DIR_DEC);
+ SEQFIFOSTORE(p, MSG, 0, 0, VLF | CONT);
+ SEQFIFOLOAD(p, MSG1, 0, VLF | LAST1 | FLUSH1);
+
+ if (rta_sec_era <= RTA_SEC_ERA_3)
+ move_mac_i_to_desc_buf = MOVE(p, OFIFO, 0, DESCBUF, 0,
+ 4, WAITCOMP | IMMED);
+ else
+ MOVE(p, OFIFO, 0, MATH3, 0, 4, IMMED);
+
+ if (rta_sec_era <= RTA_SEC_ERA_3)
+ LOAD(p, CCTRL_RESET_CHA_ALL, CCTRL, 0, 4, IMMED);
+ else
+ LOAD(p, CLRW_RESET_CLS1_CHA |
+ CLRW_CLR_C1KEY |
+ CLRW_CLR_C1CTX |
+ CLRW_CLR_C1ICV |
+ CLRW_CLR_C1DATAS |
+ CLRW_CLR_C1MODE,
+ CLRW, 0, 4, IMMED);
+
+ KEY(p, KEY1, authdata->key_enc_flags, authdata->key,
+ authdata->keylen, INLINE_KEY(authdata));
+ /*
+ * Placeholder for jump in SD for executing the new SEQ IN PTR
+ * command (which is actually the old SEQ OUT PTR command
+ * copied over from JD.
+ */
+ SET_LABEL(p, jump_to_beginning);
+ JUMP(p, 1 - jump_to_beginning, LOCAL_JUMP, ALL_TRUE, 0);
+ SET_LABEL(p, back_to_sd_offset);
+ ALG_OPERATION(p, OP_ALG_ALGSEL_AES,
+ OP_ALG_AAI_CMAC,
+ OP_ALG_AS_INITFINAL,
+ ICV_CHECK_ENABLE,
+ DIR_DEC);
+
+ /* Read the # of bytes written in the output buffer + 1 (HDR) */
+ MATHB(p, VSEQOUTSZ, ADD, ONE, VSEQINSZ, 4, 0);
+
+ if (rta_sec_era <= RTA_SEC_ERA_3)
+ MOVE(p, MATH3, 0, IFIFOAB1, 0, 8, IMMED);
+ else
+ MOVE(p, CONTEXT2, 0, IFIFOAB1, 0, 8, IMMED);
+
+ if (rta_sec_era == RTA_SEC_ERA_2 && era_2_sw_hfn_ovrd)
+ SEQFIFOLOAD(p, SKIP, 4, 0);
+
+ SEQFIFOLOAD(p, MSG1, 0, VLF | LAST1 | FLUSH1);
+
+ if (rta_sec_era >= RTA_SEC_ERA_4) {
+ LOAD(p, NFIFOENTRY_STYPE_ALTSOURCE |
+ NFIFOENTRY_DEST_CLASS1 |
+ NFIFOENTRY_DTYPE_ICV |
+ NFIFOENTRY_LC1 |
+ NFIFOENTRY_FC1 | 4, NFIFO_SZL, 0, 4, IMMED);
+ MOVE(p, MATH3, 0, ALTSOURCE, 0, 4, IMMED);
+ } else {
+ SET_LABEL(p, fifo_load_mac_i_offset);
+ FIFOLOAD(p, ICV1, fifo_load_mac_i_offset, 4,
+ LAST1 | FLUSH1 | IMMED);
+ }
+
+ SET_LABEL(p, end_desc);
+
+ if (!p->ps) {
+ PATCH_MOVE(p, seq_out_read, end_desc + 1);
+ PATCH_JUMP(p, jump_back_to_sd_cmd,
+ back_to_sd_offset + jump_back_to_sd_cmd - 5);
+
+ if (rta_sec_era <= RTA_SEC_ERA_3)
+ PATCH_MOVE(p, move_mac_i_to_desc_buf,
+ fifo_load_mac_i_offset + 1);
+ } else {
+ PATCH_MOVE(p, seq_out_read, end_desc + 2);
+ PATCH_JUMP(p, jump_back_to_sd_cmd,
+ back_to_sd_offset + jump_back_to_sd_cmd - 5);
+
+ if (rta_sec_era <= RTA_SEC_ERA_3)
+ PATCH_MOVE(p, move_mac_i_to_desc_buf,
+ fifo_load_mac_i_offset + 1);
+ }
+ }
+
+ return 0;
+}
+
+static inline int
+pdcp_insert_cplane_aes_snow_op(struct program *p,
+ bool swap __maybe_unused,
+ struct alginfo *cipherdata,
+ struct alginfo *authdata,
+ unsigned int dir,
+ unsigned char era_2_sw_hfn_ovrd __maybe_unused)
+{
+ KEY(p, KEY1, cipherdata->key_enc_flags, cipherdata->key,
+ cipherdata->keylen, INLINE_KEY(cipherdata));
+ KEY(p, KEY2, authdata->key_enc_flags, authdata->key, authdata->keylen,
+ INLINE_KEY(authdata));
+
+ if (rta_sec_era >= RTA_SEC_ERA_8) {
+ PROTOCOL(p, dir, OP_PCLID_LTE_PDCP_CTRL_MIXED,
+ ((uint16_t)cipherdata->algtype << 8) |
+ (uint16_t)authdata->algtype);
+
+ return 0;
+ }
+
+ if (dir == OP_TYPE_ENCAP_PROTOCOL)
+ MATHB(p, SEQINSZ, SUB, ONE, VSEQINSZ, 4, 0);
+
+ SEQLOAD(p, MATH0, 7, 1, 0);
+ JUMP(p, 1, LOCAL_JUMP, ALL_TRUE, CALM);
+ MOVE(p, MATH0, 7, IFIFOAB2, 0, 1, IMMED);
+ if (swap == false)
+ MATHB(p, MATH0, AND, PDCP_C_PLANE_SN_MASK, MATH1, 8,
+ IFB | IMMED2);
+ else
+ MATHB(p, MATH0, AND, PDCP_C_PLANE_SN_MASK_BE, MATH1, 8,
+ IFB | IMMED2);
+
+ SEQSTORE(p, MATH0, 7, 1, 0);
+ MATHB(p, MATH1, SHLD, MATH1, MATH1, 8, 0);
+ MOVE(p, DESCBUF, 4, MATH2, 0, 8, WAITCOMP | IMMED);
+ MATHB(p, MATH1, OR, MATH2, MATH1, 8, 0);
+ MOVE(p, MATH1, 0, CONTEXT1, 16, 8, IMMED);
+ MOVE(p, MATH1, 0, CONTEXT2, 0, 4, IMMED);
+ if (swap == false) {
+ MATHB(p, MATH1, AND, lower_32_bits(PDCP_BEARER_MASK), MATH2, 4,
+ IMMED2);
+ MATHB(p, MATH1, AND, upper_32_bits(PDCP_DIR_MASK), MATH3, 4,
+ IMMED2);
+ } else {
+ MATHB(p, MATH1, AND, lower_32_bits(PDCP_BEARER_MASK_BE), MATH2,
+ 4, IMMED2);
+ MATHB(p, MATH1, AND, upper_32_bits(PDCP_DIR_MASK_BE), MATH3,
+ 4, IMMED2);
+ }
+ MATHB(p, MATH3, SHLD, MATH3, MATH3, 8, 0);
+ MOVE(p, MATH2, 4, OFIFO, 0, 12, IMMED);
+ MOVE(p, OFIFO, 0, CONTEXT2, 4, 12, IMMED);
+ if (dir == OP_TYPE_ENCAP_PROTOCOL) {
+ MATHB(p, SEQINSZ, ADD, PDCP_MAC_I_LEN, VSEQOUTSZ, 4, IMMED2);
+ } else {
+ MATHB(p, SEQINSZ, SUB, PDCP_MAC_I_LEN, MATH1, 4, IMMED2);
+
+ MATHB(p, ZERO, ADD, MATH1, VSEQOUTSZ, 4, 0);
+ MATHB(p, ZERO, ADD, MATH1, VSEQINSZ, 4, 0);
+ }
+
+ if (dir == OP_TYPE_ENCAP_PROTOCOL)
+ SEQFIFOSTORE(p, MSG, 0, 0, VLF);
+ else
+ SEQFIFOSTORE(p, MSG, 0, 0, VLF | CONT);
+
+ ALG_OPERATION(p, OP_ALG_ALGSEL_SNOW_F9,
+ OP_ALG_AAI_F9,
+ OP_ALG_AS_INITFINAL,
+ dir == OP_TYPE_ENCAP_PROTOCOL ?
+ ICV_CHECK_DISABLE : ICV_CHECK_ENABLE,
+ DIR_DEC);
+ ALG_OPERATION(p, OP_ALG_ALGSEL_AES,
+ OP_ALG_AAI_CTR,
+ OP_ALG_AS_INITFINAL,
+ ICV_CHECK_DISABLE,
+ dir == OP_TYPE_ENCAP_PROTOCOL ? DIR_ENC : DIR_DEC);
+
+ if (dir == OP_TYPE_ENCAP_PROTOCOL) {
+ SEQFIFOLOAD(p, MSGINSNOOP, 0, VLF | LAST2);
+ MOVE(p, CONTEXT2, 0, IFIFOAB1, 0, 4, LAST1 | FLUSH1 | IMMED);
+ } else {
+ SEQFIFOLOAD(p, MSGOUTSNOOP, 0, VLF | LAST2);
+ SEQFIFOLOAD(p, MSG1, 4, LAST1 | FLUSH1);
+ JUMP(p, 1, LOCAL_JUMP, ALL_TRUE, CLASS1 | NOP | NIFP);
+
+ if (rta_sec_era >= RTA_SEC_ERA_6)
+ LOAD(p, 0, DCTRL, 0, LDLEN_RST_CHA_OFIFO_PTR, IMMED);
+
+ MOVE(p, OFIFO, 0, MATH0, 0, 4, WAITCOMP | IMMED);
+
+ NFIFOADD(p, IFIFO, ICV2, 4, LAST2);
+
+ if (rta_sec_era <= RTA_SEC_ERA_2) {
+ /* Shut off automatic Info FIFO entries */
+ LOAD(p, 0, DCTRL, LDOFF_DISABLE_AUTO_NFIFO, 0, IMMED);
+ MOVE(p, MATH0, 0, IFIFOAB2, 0, 4, WAITCOMP | IMMED);
+ } else {
+ MOVE(p, MATH0, 0, IFIFO, 0, 4, WAITCOMP | IMMED);
+ }
+ }
+
+ return 0;
+}
+
+static inline int
+pdcp_insert_cplane_snow_zuc_op(struct program *p,
+ bool swap __maybe_unused,
+ struct alginfo *cipherdata,
+ struct alginfo *authdata,
+ unsigned int dir,
+ unsigned char era_2_sw_hfn_ovrd __maybe_unused)
+{
+ LABEL(keyjump);
+ REFERENCE(pkeyjump);
+
+ if (rta_sec_era < RTA_SEC_ERA_5) {
+ pr_err("Invalid era for selected algorithm\n");
+ return -ENOTSUP;
+ }
+
+ pkeyjump = JUMP(p, keyjump, LOCAL_JUMP, ALL_TRUE, SHRD | SELF | BOTH);
+ KEY(p, KEY1, cipherdata->key_enc_flags, cipherdata->key,
+ cipherdata->keylen, INLINE_KEY(cipherdata));
+ KEY(p, KEY2, authdata->key_enc_flags, authdata->key, authdata->keylen,
+ INLINE_KEY(authdata));
+
+ SET_LABEL(p, keyjump);
+
+ if (rta_sec_era >= RTA_SEC_ERA_8) {
+ PROTOCOL(p, dir, OP_PCLID_LTE_PDCP_CTRL_MIXED,
+ ((uint16_t)cipherdata->algtype << 8) |
+ (uint16_t)authdata->algtype);
+ return 0;
+ }
+
+ SEQLOAD(p, MATH0, 7, 1, 0);
+ JUMP(p, 1, LOCAL_JUMP, ALL_TRUE, CALM);
+ MOVE(p, MATH0, 7, IFIFOAB2, 0, 1, IMMED);
+ if (swap == false)
+ MATHB(p, MATH0, AND, PDCP_C_PLANE_SN_MASK, MATH1, 8,
+ IFB | IMMED2);
+ else
+ MATHB(p, MATH0, AND, PDCP_C_PLANE_SN_MASK, MATH1, 8,
+ IFB | IMMED2);
+
+ MATHB(p, MATH1, SHLD, MATH1, MATH1, 8, 0);
+ MOVE(p, DESCBUF, 4, MATH2, 0, 8, WAITCOMP | IMMED);
+ MATHB(p, MATH1, OR, MATH2, MATH2, 8, 0);
+ MOVE(p, MATH2, 0, CONTEXT1, 0, 8, IMMED);
+ MOVE(p, MATH2, 0, CONTEXT2, 0, 8, WAITCOMP | IMMED);
+
+ if (dir == OP_TYPE_ENCAP_PROTOCOL)
+ MATHB(p, SEQINSZ, ADD, PDCP_MAC_I_LEN, VSEQOUTSZ, 4, IMMED2);
+ else
+ MATHB(p, SEQINSZ, SUB, PDCP_MAC_I_LEN, VSEQOUTSZ, 4, IMMED2);
+
+ MATHB(p, SEQINSZ, SUB, ZERO, VSEQINSZ, 4, 0);
+ SEQSTORE(p, MATH0, 7, 1, 0);
+
+ if (dir == OP_TYPE_ENCAP_PROTOCOL) {
+ SEQFIFOSTORE(p, MSG, 0, 0, VLF);
+ SEQFIFOLOAD(p, MSGINSNOOP, 0, VLF | LAST2);
+ } else {
+ SEQFIFOSTORE(p, MSG, 0, 0, VLF | CONT);
+ SEQFIFOLOAD(p, MSGOUTSNOOP, 0, VLF | LAST1 | FLUSH1);
+ }
+
+ ALG_OPERATION(p, OP_ALG_ALGSEL_ZUCA,
+ OP_ALG_AAI_F9,
+ OP_ALG_AS_INITFINAL,
+ dir == OP_TYPE_ENCAP_PROTOCOL ?
+ ICV_CHECK_DISABLE : ICV_CHECK_ENABLE,
+ DIR_ENC);
+
+ ALG_OPERATION(p, OP_ALG_ALGSEL_SNOW_F8,
+ OP_ALG_AAI_F8,
+ OP_ALG_AS_INITFINAL,
+ ICV_CHECK_DISABLE,
+ dir == OP_TYPE_ENCAP_PROTOCOL ? DIR_ENC : DIR_DEC);
+ if (dir == OP_TYPE_ENCAP_PROTOCOL) {
+ MOVE(p, CONTEXT2, 0, IFIFOAB1, 0, 4, LAST1 | FLUSH1 | IMMED);
+ } else {
+ /* Save ICV */
+ MOVE(p, OFIFO, 0, MATH0, 0, 4, IMMED);
+ LOAD(p, NFIFOENTRY_STYPE_ALTSOURCE |
+ NFIFOENTRY_DEST_CLASS2 |
+ NFIFOENTRY_DTYPE_ICV |
+ NFIFOENTRY_LC2 | 4, NFIFO_SZL, 0, 4, IMMED);
+ MOVE(p, MATH0, 0, ALTSOURCE, 0, 4, WAITCOMP | IMMED);
+ }
+
+ /* Reset ZUCA mode and done interrupt */
+ LOAD(p, CLRW_CLR_C2MODE, CLRW, 0, 4, IMMED);
+ LOAD(p, CIRQ_ZADI, ICTRL, 0, 4, IMMED);
+
+ PATCH_JUMP(p, pkeyjump, keyjump);
+ return 0;
+}
+
+static inline int
+pdcp_insert_cplane_aes_zuc_op(struct program *p,
+ bool swap __maybe_unused,
+ struct alginfo *cipherdata,
+ struct alginfo *authdata,
+ unsigned int dir,
+ unsigned char era_2_sw_hfn_ovrd __maybe_unused)
+{
+ LABEL(keyjump);
+ REFERENCE(pkeyjump);
+
+ if (rta_sec_era < RTA_SEC_ERA_5) {
+ pr_err("Invalid era for selected algorithm\n");
+ return -ENOTSUP;
+ }
+
+ pkeyjump = JUMP(p, keyjump, LOCAL_JUMP, ALL_TRUE, SHRD | SELF | BOTH);
+ KEY(p, KEY1, cipherdata->key_enc_flags, cipherdata->key,
+ cipherdata->keylen, INLINE_KEY(cipherdata));
+ KEY(p, KEY2, authdata->key_enc_flags, authdata->key, authdata->keylen,
+ INLINE_KEY(authdata));
+
+ if (rta_sec_era >= RTA_SEC_ERA_8) {
+ PROTOCOL(p, dir, OP_PCLID_LTE_PDCP_CTRL_MIXED,
+ ((uint16_t)cipherdata->algtype << 8) |
+ (uint16_t)authdata->algtype);
+
+ return 0;
+ }
+
+ SET_LABEL(p, keyjump);
+ SEQLOAD(p, MATH0, 7, 1, 0);
+ JUMP(p, 1, LOCAL_JUMP, ALL_TRUE, CALM);
+ MOVE(p, MATH0, 7, IFIFOAB2, 0, 1, IMMED);
+ if (swap == false)
+ MATHB(p, MATH0, AND, PDCP_C_PLANE_SN_MASK, MATH1, 8,
+ IFB | IMMED2);
+ else
+ MATHB(p, MATH0, AND, PDCP_C_PLANE_SN_MASK, MATH1, 8,
+ IFB | IMMED2);
+
+ MATHB(p, MATH1, SHLD, MATH1, MATH1, 8, 0);
+ MOVE(p, DESCBUF, 4, MATH2, 0, 8, WAITCOMP | IMMED);
+ MATHB(p, MATH1, OR, MATH2, MATH2, 8, 0);
+ MOVE(p, MATH2, 0, CONTEXT1, 16, 8, IMMED);
+ MOVE(p, MATH2, 0, CONTEXT2, 0, 8, WAITCOMP | IMMED);
+
+ if (dir == OP_TYPE_ENCAP_PROTOCOL)
+ MATHB(p, SEQINSZ, ADD, PDCP_MAC_I_LEN, VSEQOUTSZ, 4, IMMED2);
+ else
+ MATHB(p, SEQINSZ, SUB, PDCP_MAC_I_LEN, VSEQOUTSZ, 4, IMMED2);
+
+ MATHB(p, SEQINSZ, SUB, ZERO, VSEQINSZ, 4, 0);
+ SEQSTORE(p, MATH0, 7, 1, 0);
+
+ if (dir == OP_TYPE_ENCAP_PROTOCOL) {
+ SEQFIFOSTORE(p, MSG, 0, 0, VLF);
+ SEQFIFOLOAD(p, MSGINSNOOP, 0, VLF | LAST2);
+ } else {
+ SEQFIFOSTORE(p, MSG, 0, 0, VLF | CONT);
+ SEQFIFOLOAD(p, MSGOUTSNOOP, 0, VLF | LAST1 | FLUSH1);
+ }
+
+ ALG_OPERATION(p, OP_ALG_ALGSEL_ZUCA,
+ OP_ALG_AAI_F9,
+ OP_ALG_AS_INITFINAL,
+ dir == OP_TYPE_ENCAP_PROTOCOL ?
+ ICV_CHECK_DISABLE : ICV_CHECK_ENABLE,
+ DIR_ENC);
+
+ ALG_OPERATION(p, OP_ALG_ALGSEL_AES,
+ OP_ALG_AAI_CTR,
+ OP_ALG_AS_INITFINAL,
+ ICV_CHECK_DISABLE,
+ dir == OP_TYPE_ENCAP_PROTOCOL ? DIR_ENC : DIR_DEC);
+
+ if (dir == OP_TYPE_ENCAP_PROTOCOL) {
+ MOVE(p, CONTEXT2, 0, IFIFOAB1, 0, 4, LAST1 | FLUSH1 | IMMED);
+ } else {
+ /* Save ICV */
+ MOVE(p, OFIFO, 0, MATH0, 0, 4, IMMED);
+
+ LOAD(p, NFIFOENTRY_STYPE_ALTSOURCE |
+ NFIFOENTRY_DEST_CLASS2 |
+ NFIFOENTRY_DTYPE_ICV |
+ NFIFOENTRY_LC2 | 4, NFIFO_SZL, 0, 4, IMMED);
+ MOVE(p, MATH0, 0, ALTSOURCE, 0, 4, WAITCOMP | IMMED);
+ }
+
+ /* Reset ZUCA mode and done interrupt */
+ LOAD(p, CLRW_CLR_C2MODE, CLRW, 0, 4, IMMED);
+ LOAD(p, CIRQ_ZADI, ICTRL, 0, 4, IMMED);
+
+ PATCH_JUMP(p, pkeyjump, keyjump);
+
+ return 0;
+}
+
+static inline int
+pdcp_insert_cplane_zuc_snow_op(struct program *p,
+ bool swap __maybe_unused,
+ struct alginfo *cipherdata,
+ struct alginfo *authdata,
+ unsigned int dir,
+ unsigned char era_2_sw_hfn_ovrd __maybe_unused)
+{
+ LABEL(keyjump);
+ REFERENCE(pkeyjump);
+
+ if (rta_sec_era < RTA_SEC_ERA_5) {
+ pr_err("Invalid era for selected algorithm\n");
+ return -ENOTSUP;
+ }
+
+ pkeyjump = JUMP(p, keyjump, LOCAL_JUMP, ALL_TRUE, SHRD | SELF | BOTH);
+ KEY(p, KEY1, cipherdata->key_enc_flags, cipherdata->key,
+ cipherdata->keylen, INLINE_KEY(cipherdata));
+ KEY(p, KEY2, authdata->key_enc_flags, authdata->key, authdata->keylen,
+ INLINE_KEY(authdata));
+
+ if (rta_sec_era >= RTA_SEC_ERA_8) {
+ PROTOCOL(p, dir, OP_PCLID_LTE_PDCP_CTRL_MIXED,
+ ((uint16_t)cipherdata->algtype << 8) |
+ (uint16_t)authdata->algtype);
+
+ return 0;
+ }
+
+ SET_LABEL(p, keyjump);
+ SEQLOAD(p, MATH0, 7, 1, 0);
+ JUMP(p, 1, LOCAL_JUMP, ALL_TRUE, CALM);
+ MOVE(p, MATH0, 7, IFIFOAB2, 0, 1, IMMED);
+ if (swap == false)
+ MATHB(p, MATH0, AND, PDCP_C_PLANE_SN_MASK, MATH1, 8,
+ IFB | IMMED2);
+ else
+ MATHB(p, MATH0, AND, PDCP_C_PLANE_SN_MASK, MATH1, 8,
+ IFB | IMMED2);
+
+ MATHB(p, MATH1, SHLD, MATH1, MATH1, 8, 0);
+ MOVE(p, DESCBUF, 4, MATH2, 0, 8, WAITCOMP | IMMED);
+ MATHB(p, MATH1, OR, MATH2, MATH1, 8, 0);
+ MOVE(p, MATH1, 0, CONTEXT1, 0, 8, IMMED);
+ MOVE(p, MATH1, 0, CONTEXT2, 0, 4, IMMED);
+ if (swap == false) {
+ MATHB(p, MATH1, AND, lower_32_bits(PDCP_BEARER_MASK), MATH2,
+ 4, IMMED2);
+ MATHB(p, MATH1, AND, upper_32_bits(PDCP_DIR_MASK), MATH3,
+ 4, IMMED2);
+ } else {
+ MATHB(p, MATH1, AND, lower_32_bits(PDCP_BEARER_MASK_BE), MATH2,
+ 4, IMMED2);
+ MATHB(p, MATH1, AND, upper_32_bits(PDCP_DIR_MASK_BE), MATH3,
+ 4, IMMED2);
+ }
+ MATHB(p, MATH3, SHLD, MATH3, MATH3, 8, 0);
+ MOVE(p, MATH2, 4, OFIFO, 0, 12, IMMED);
+ MOVE(p, OFIFO, 0, CONTEXT2, 4, 12, IMMED);
+
+ if (dir == OP_TYPE_ENCAP_PROTOCOL) {
+ MATHB(p, SEQINSZ, ADD, PDCP_MAC_I_LEN, VSEQOUTSZ, 4, IMMED2);
+ MATHB(p, SEQINSZ, SUB, ZERO, VSEQINSZ, 4, 0);
+ } else {
+ MATHB(p, SEQINSZ, SUB, PDCP_MAC_I_LEN, VSEQOUTSZ, 4, IMMED2);
+ MATHB(p, VSEQOUTSZ, SUB, ZERO, VSEQINSZ, 4, 0);
+ }
+
+ SEQSTORE(p, MATH0, 7, 1, 0);
+
+ if (dir == OP_TYPE_ENCAP_PROTOCOL) {
+ SEQFIFOSTORE(p, MSG, 0, 0, VLF);
+ SEQFIFOLOAD(p, MSGINSNOOP, 0, VLF | LAST2);
+ } else {
+ SEQFIFOSTORE(p, MSG, 0, 0, VLF | CONT);
+ SEQFIFOLOAD(p, MSGOUTSNOOP, 0, VLF | LAST2);
+ }
+
+ ALG_OPERATION(p, OP_ALG_ALGSEL_SNOW_F9,
+ OP_ALG_AAI_F9,
+ OP_ALG_AS_INITFINAL,
+ dir == OP_TYPE_ENCAP_PROTOCOL ?
+ ICV_CHECK_DISABLE : ICV_CHECK_ENABLE,
+ DIR_DEC);
+
+ ALG_OPERATION(p, OP_ALG_ALGSEL_ZUCE,
+ OP_ALG_AAI_F8,
+ OP_ALG_AS_INITFINAL,
+ ICV_CHECK_DISABLE,
+ dir == OP_TYPE_ENCAP_PROTOCOL ? DIR_ENC : DIR_DEC);
+
+ if (dir == OP_TYPE_ENCAP_PROTOCOL) {
+ MOVE(p, CONTEXT2, 0, IFIFOAB1, 0, 4, LAST1 | FLUSH1 | IMMED);
+ } else {
+ SEQFIFOLOAD(p, MSG1, 4, LAST1 | FLUSH1);
+ JUMP(p, 1, LOCAL_JUMP, ALL_TRUE, CLASS1 | NOP | NIFP);
+
+ if (rta_sec_era >= RTA_SEC_ERA_6)
+ /*
+ * For SEC ERA 6, there's a problem with the OFIFO
+ * pointer, and thus it needs to be reset here before
+ * moving to M0.
+ */
+ LOAD(p, 0, DCTRL, 0, LDLEN_RST_CHA_OFIFO_PTR, IMMED);
+
+ /* Put ICV to M0 before sending it to C2 for comparison. */
+ MOVE(p, OFIFO, 0, MATH0, 0, 4, WAITCOMP | IMMED);
+
+ LOAD(p, NFIFOENTRY_STYPE_ALTSOURCE |
+ NFIFOENTRY_DEST_CLASS2 |
+ NFIFOENTRY_DTYPE_ICV |
+ NFIFOENTRY_LC2 | 4, NFIFO_SZL, 0, 4, IMMED);
+ MOVE(p, MATH0, 0, ALTSOURCE, 0, 4, IMMED);
+ }
+
+ PATCH_JUMP(p, pkeyjump, keyjump);
+ return 0;
+}
+
+static inline int
+pdcp_insert_cplane_zuc_aes_op(struct program *p,
+ bool swap __maybe_unused,
+ struct alginfo *cipherdata,
+ struct alginfo *authdata,
+ unsigned int dir,
+ unsigned char era_2_sw_hfn_ovrd __maybe_unused)
+{
+ if (rta_sec_era < RTA_SEC_ERA_5) {
+ pr_err("Invalid era for selected algorithm\n");
+ return -ENOTSUP;
+ }
+
+ if (rta_sec_era >= RTA_SEC_ERA_8) {
+ KEY(p, KEY1, cipherdata->key_enc_flags, cipherdata->key,
+ cipherdata->keylen, INLINE_KEY(cipherdata));
+ KEY(p, KEY2, authdata->key_enc_flags, authdata->key,
+ authdata->keylen, INLINE_KEY(authdata));
+
+ PROTOCOL(p, dir, OP_PCLID_LTE_PDCP_CTRL_MIXED,
+ ((uint16_t)cipherdata->algtype << 8) |
+ (uint16_t)authdata->algtype);
+ return 0;
+ }
+
+ SEQLOAD(p, MATH0, 7, 1, 0);
+ JUMP(p, 1, LOCAL_JUMP, ALL_TRUE, CALM);
+ if (swap == false)
+ MATHB(p, MATH0, AND, PDCP_C_PLANE_SN_MASK, MATH1, 8,
+ IFB | IMMED2);
+ else
+ MATHB(p, MATH0, AND, PDCP_C_PLANE_SN_MASK, MATH1, 8,
+ IFB | IMMED2);
+
+ MATHB(p, MATH1, SHLD, MATH1, MATH1, 8, 0);
+ MOVE(p, DESCBUF, 4, MATH2, 0, 0x08, WAITCOMP | IMMED);
+ MATHB(p, MATH1, OR, MATH2, MATH2, 8, 0);
+ SEQSTORE(p, MATH0, 7, 1, 0);
+ if (dir == OP_TYPE_ENCAP_PROTOCOL) {
+ KEY(p, KEY1, authdata->key_enc_flags, authdata->key,
+ authdata->keylen, INLINE_KEY(authdata));
+ MOVE(p, MATH2, 0, IFIFOAB1, 0, 0x08, IMMED);
+ MOVE(p, MATH0, 7, IFIFOAB1, 0, 1, IMMED);
+
+ MATHB(p, SEQINSZ, SUB, ZERO, VSEQINSZ, 4, 0);
+ MATHB(p, VSEQINSZ, ADD, PDCP_MAC_I_LEN, VSEQOUTSZ, 4, IMMED2);
+
+ ALG_OPERATION(p, OP_ALG_ALGSEL_AES,
+ OP_ALG_AAI_CMAC,
+ OP_ALG_AS_INITFINAL,
+ ICV_CHECK_DISABLE,
+ DIR_DEC);
+ SEQFIFOLOAD(p, MSG1, 0, VLF | LAST1 | FLUSH1);
+ MOVE(p, CONTEXT1, 0, MATH3, 0, 4, WAITCOMP | IMMED);
+ LOAD(p, CLRW_RESET_CLS1_CHA |
+ CLRW_CLR_C1KEY |
+ CLRW_CLR_C1CTX |
+ CLRW_CLR_C1ICV |
+ CLRW_CLR_C1DATAS |
+ CLRW_CLR_C1MODE,
+ CLRW, 0, 4, IMMED);
+
+ KEY(p, KEY1, cipherdata->key_enc_flags, cipherdata->key,
+ cipherdata->keylen, INLINE_KEY(cipherdata));
+
+ MOVE(p, MATH2, 0, CONTEXT1, 0, 8, IMMED);
+ SEQINPTR(p, 0, PDCP_NULL_MAX_FRAME_LEN, RTO);
+
+ ALG_OPERATION(p, OP_ALG_ALGSEL_ZUCE,
+ OP_ALG_AAI_F8,
+ OP_ALG_AS_INITFINAL,
+ ICV_CHECK_DISABLE,
+ DIR_ENC);
+ SEQFIFOSTORE(p, MSG, 0, 0, VLF);
+
+ SEQFIFOLOAD(p, SKIP, 1, 0);
+
+ SEQFIFOLOAD(p, MSG1, 0, VLF);
+ MOVE(p, MATH3, 0, IFIFOAB1, 0, 4, LAST1 | FLUSH1 | IMMED);
+ } else {
+ MOVE(p, MATH2, 0, CONTEXT1, 0, 8, IMMED);
+
+ MOVE(p, CONTEXT1, 0, CONTEXT2, 0, 8, IMMED);
+
+ MATHB(p, SEQINSZ, SUB, ZERO, VSEQINSZ, 4, 0);
+
+ MATHB(p, SEQINSZ, SUB, PDCP_MAC_I_LEN, VSEQOUTSZ, 4, IMMED2);
+
+ KEY(p, KEY1, cipherdata->key_enc_flags, cipherdata->key,
+ cipherdata->keylen, INLINE_KEY(cipherdata));
+
+ MOVE(p, CONTEXT1, 0, CONTEXT2, 0, 8, IMMED);
+
+ ALG_OPERATION(p, OP_ALG_ALGSEL_ZUCE,
+ OP_ALG_AAI_F8,
+ OP_ALG_AS_INITFINAL,
+ ICV_CHECK_DISABLE,
+ DIR_DEC);
+ SEQFIFOSTORE(p, MSG, 0, 0, VLF | CONT);
+ SEQFIFOLOAD(p, MSG1, 0, VLF | LAST1 | FLUSH1);
+
+ MOVE(p, OFIFO, 0, MATH3, 0, 4, IMMED);
+
+ LOAD(p, CLRW_RESET_CLS1_CHA |
+ CLRW_CLR_C1KEY |
+ CLRW_CLR_C1CTX |
+ CLRW_CLR_C1ICV |
+ CLRW_CLR_C1DATAS |
+ CLRW_CLR_C1MODE,
+ CLRW, 0, 4, IMMED);
+
+ KEY(p, KEY1, authdata->key_enc_flags, authdata->key,
+ authdata->keylen, INLINE_KEY(authdata));
+
+ SEQINPTR(p, 0, 0, SOP);
+
+ ALG_OPERATION(p, OP_ALG_ALGSEL_AES,
+ OP_ALG_AAI_CMAC,
+ OP_ALG_AS_INITFINAL,
+ ICV_CHECK_ENABLE,
+ DIR_DEC);
+
+ MATHB(p, SEQINSZ, SUB, ZERO, VSEQINSZ, 4, 0);
+
+ MOVE(p, CONTEXT2, 0, IFIFOAB1, 0, 8, IMMED);
+
+ SEQFIFOLOAD(p, MSG1, 0, VLF | LAST1 | FLUSH1);
+
+ LOAD(p, NFIFOENTRY_STYPE_ALTSOURCE |
+ NFIFOENTRY_DEST_CLASS1 |
+ NFIFOENTRY_DTYPE_ICV |
+ NFIFOENTRY_LC1 |
+ NFIFOENTRY_FC1 | 4, NFIFO_SZL, 0, 4, IMMED);
+ MOVE(p, MATH3, 0, ALTSOURCE, 0, 4, IMMED);
+ }
+
+ return 0;
+}
+
+static inline int
+pdcp_insert_uplane_15bit_op(struct program *p,
+ bool swap __maybe_unused,
+ struct alginfo *cipherdata,
+ unsigned int dir)
+{
+ int op;
+ /* Insert Cipher Key */
+ KEY(p, KEY1, cipherdata->key_enc_flags, cipherdata->key,
+ cipherdata->keylen, INLINE_KEY(cipherdata));
+
+ if (rta_sec_era >= RTA_SEC_ERA_8) {
+ PROTOCOL(p, dir, OP_PCLID_LTE_PDCP_USER,
+ (uint16_t)cipherdata->algtype);
+ return 0;
+ }
+
+ SEQLOAD(p, MATH0, 6, 2, 0);
+ JUMP(p, 1, LOCAL_JUMP, ALL_TRUE, CALM);
+ if (swap == false)
+ MATHB(p, MATH0, AND, PDCP_U_PLANE_15BIT_SN_MASK, MATH1, 8,
+ IFB | IMMED2);
+ else
+ MATHB(p, MATH0, AND, PDCP_U_PLANE_15BIT_SN_MASK_BE, MATH1, 8,
+ IFB | IMMED2);
+ SEQSTORE(p, MATH0, 6, 2, 0);
+ MATHB(p, MATH1, SHLD, MATH1, MATH1, 8, 0);
+ MOVE(p, DESCBUF, 8, MATH2, 0, 8, WAITCOMP | IMMED);
+ MATHB(p, MATH1, OR, MATH2, MATH2, 8, 0);
+
+ MATHB(p, SEQINSZ, SUB, MATH3, VSEQINSZ, 4, 0);
+ MATHB(p, SEQINSZ, SUB, MATH3, VSEQOUTSZ, 4, 0);
+
+ SEQFIFOSTORE(p, MSG, 0, 0, VLF);
+
+ op = dir == OP_TYPE_ENCAP_PROTOCOL ? DIR_ENC : DIR_DEC;
+ switch (cipherdata->algtype) {
+ case PDCP_CIPHER_TYPE_SNOW:
+ MOVE(p, MATH2, 0, CONTEXT1, 0, 8, WAITCOMP | IMMED);
+ ALG_OPERATION(p, OP_ALG_ALGSEL_SNOW_F8,
+ OP_ALG_AAI_F8,
+ OP_ALG_AS_INITFINAL,
+ ICV_CHECK_DISABLE,
+ op);
+ break;
+
+ case PDCP_CIPHER_TYPE_AES:
+ MOVE(p, MATH2, 0, CONTEXT1, 0x10, 0x10, WAITCOMP | IMMED);
+ ALG_OPERATION(p, OP_ALG_ALGSEL_AES,
+ OP_ALG_AAI_CTR,
+ OP_ALG_AS_INITFINAL,
+ ICV_CHECK_DISABLE,
+ op);
+ break;
+
+ case PDCP_CIPHER_TYPE_ZUC:
+ if (rta_sec_era < RTA_SEC_ERA_5) {
+ pr_err("Invalid era for selected algorithm\n");
+ return -ENOTSUP;
+ }
+ MOVE(p, MATH2, 0, CONTEXT1, 0, 0x08, IMMED);
+ MOVE(p, MATH2, 0, CONTEXT1, 0x08, 0x08, WAITCOMP | IMMED);
+
+ ALG_OPERATION(p, OP_ALG_ALGSEL_ZUCE,
+ OP_ALG_AAI_F8,
+ OP_ALG_AS_INITFINAL,
+ ICV_CHECK_DISABLE,
+ op);
+ break;
+
+ default:
+ pr_err("%s: Invalid encrypt algorithm selected: %d\n",
+ "pdcp_insert_uplane_15bit_op", cipherdata->algtype);
+ return -EINVAL;
+ }
+
+ SEQFIFOLOAD(p, MSG1, 0, VLF | LAST1 | FLUSH1);
+
+ return 0;
+}
+
+/*
+ * Function for inserting the snippet of code responsible for creating
+ * the HFN override code via either DPOVRD or via the input frame.
+ */
+static inline int
+insert_hfn_ov_op(struct program *p,
+ uint32_t shift,
+ enum pdb_type_e pdb_type,
+ unsigned char era_2_sw_hfn_ovrd)
+{
+ uint32_t imm = PDCP_DPOVRD_HFN_OV_EN;
+ uint16_t hfn_pdb_offset;
+
+ if (rta_sec_era == RTA_SEC_ERA_2 && !era_2_sw_hfn_ovrd)
+ return 0;
+
+ switch (pdb_type) {
+ case PDCP_PDB_TYPE_NO_PDB:
+ /*
+ * If there is no PDB, then HFN override mechanism does not
+ * make any sense, thus in this case the function will
+ * return the pointer to the current position in the
+ * descriptor buffer
+ */
+ return 0;
+
+ case PDCP_PDB_TYPE_REDUCED_PDB:
+ hfn_pdb_offset = 4;
+ break;
+
+ case PDCP_PDB_TYPE_FULL_PDB:
+ hfn_pdb_offset = 8;
+ break;
+
+ default:
+ return -EINVAL;
+ }
+
+ if (rta_sec_era > RTA_SEC_ERA_2) {
+ MATHB(p, DPOVRD, AND, imm, NONE, 8, IFB | IMMED2);
+ } else {
+ SEQLOAD(p, MATH0, 4, 4, 0);
+ JUMP(p, 1, LOCAL_JUMP, ALL_TRUE, CALM);
+ MATHB(p, MATH0, AND, imm, NONE, 8, IFB | IMMED2);
+ SEQSTORE(p, MATH0, 4, 4, 0);
+ }
+
+ if (rta_sec_era >= RTA_SEC_ERA_8)
+ JUMP(p, 6, LOCAL_JUMP, ALL_TRUE, MATH_Z);
+ else
+ JUMP(p, 5, LOCAL_JUMP, ALL_TRUE, MATH_Z);
+
+ if (rta_sec_era > RTA_SEC_ERA_2)
+ MATHB(p, DPOVRD, LSHIFT, shift, MATH0, 4, IMMED2);
+ else
+ MATHB(p, MATH0, LSHIFT, shift, MATH0, 4, IMMED2);
+
+ MATHB(p, MATH0, SHLD, MATH0, MATH0, 8, 0);
+ MOVE(p, MATH0, 0, DESCBUF, hfn_pdb_offset, 4, IMMED);
+
+ if (rta_sec_era >= RTA_SEC_ERA_8)
+ /*
+ * For ERA8, DPOVRD could be handled by the PROTOCOL command
+ * itself. For now, this is not done. Thus, clear DPOVRD here
+ * to alleviate any side-effects.
+ */
+ MATHB(p, DPOVRD, AND, ZERO, DPOVRD, 4, STL);
+
+ return 0;
+}
+
+/*
+ * PDCP Control PDB creation function
+ */
+static inline enum pdb_type_e
+cnstr_pdcp_c_plane_pdb(struct program *p,
+ uint32_t hfn,
+ unsigned char bearer,
+ unsigned char direction,
+ uint32_t hfn_threshold,
+ struct alginfo *cipherdata,
+ struct alginfo *authdata)
+{
+ struct pdcp_pdb pdb;
+ enum pdb_type_e
+ pdb_mask[PDCP_CIPHER_TYPE_INVALID][PDCP_AUTH_TYPE_INVALID] = {
+ { /* NULL */
+ PDCP_PDB_TYPE_NO_PDB, /* NULL */
+ PDCP_PDB_TYPE_FULL_PDB, /* SNOW f9 */
+ PDCP_PDB_TYPE_FULL_PDB, /* AES CMAC */
+ PDCP_PDB_TYPE_FULL_PDB /* ZUC-I */
+ },
+ { /* SNOW f8 */
+ PDCP_PDB_TYPE_FULL_PDB, /* NULL */
+ PDCP_PDB_TYPE_FULL_PDB, /* SNOW f9 */
+ PDCP_PDB_TYPE_REDUCED_PDB, /* AES CMAC */
+ PDCP_PDB_TYPE_REDUCED_PDB /* ZUC-I */
+ },
+ { /* AES CTR */
+ PDCP_PDB_TYPE_FULL_PDB, /* NULL */
+ PDCP_PDB_TYPE_REDUCED_PDB, /* SNOW f9 */
+ PDCP_PDB_TYPE_FULL_PDB, /* AES CMAC */
+ PDCP_PDB_TYPE_REDUCED_PDB /* ZUC-I */
+ },
+ { /* ZUC-E */
+ PDCP_PDB_TYPE_FULL_PDB, /* NULL */
+ PDCP_PDB_TYPE_REDUCED_PDB, /* SNOW f9 */
+ PDCP_PDB_TYPE_REDUCED_PDB, /* AES CMAC */
+ PDCP_PDB_TYPE_FULL_PDB /* ZUC-I */
+ },
+ };
+
+ if (rta_sec_era >= RTA_SEC_ERA_8) {
+ memset(&pdb, 0x00, sizeof(struct pdcp_pdb));
+
+ /* This is a HW issue. Bit 2 should be set to zero,
+ * but it does not work this way. Override here.
+ */
+ pdb.opt_res.rsvd = 0x00000002;
+
+ /* Copy relevant information from user to PDB */
+ pdb.hfn_res = hfn << PDCP_C_PLANE_PDB_HFN_SHIFT;
+ pdb.bearer_dir_res = (uint32_t)
+ ((bearer << PDCP_C_PLANE_PDB_BEARER_SHIFT) |
+ (direction << PDCP_C_PLANE_PDB_DIR_SHIFT));
+ pdb.hfn_thr_res =
+ hfn_threshold << PDCP_C_PLANE_PDB_HFN_THR_SHIFT;
+
+ /* copy PDB in descriptor*/
+ __rta_out32(p, pdb.opt_res.opt);
+ __rta_out32(p, pdb.hfn_res);
+ __rta_out32(p, pdb.bearer_dir_res);
+ __rta_out32(p, pdb.hfn_thr_res);
+
+ return PDCP_PDB_TYPE_FULL_PDB;
+ }
+
+ switch (pdb_mask[cipherdata->algtype][authdata->algtype]) {
+ case PDCP_PDB_TYPE_NO_PDB:
+ break;
+
+ case PDCP_PDB_TYPE_REDUCED_PDB:
+ __rta_out32(p, (hfn << PDCP_C_PLANE_PDB_HFN_SHIFT));
+ __rta_out32(p,
+ (uint32_t)((bearer <<
+ PDCP_C_PLANE_PDB_BEARER_SHIFT) |
+ (direction <<
+ PDCP_C_PLANE_PDB_DIR_SHIFT)));
+ break;
+
+ case PDCP_PDB_TYPE_FULL_PDB:
+ memset(&pdb, 0x00, sizeof(struct pdcp_pdb));
+
+ /* This is a HW issue. Bit 2 should be set to zero,
+ * but it does not work this way. Override here.
+ */
+ pdb.opt_res.rsvd = 0x00000002;
+
+ /* Copy relevant information from user to PDB */
+ pdb.hfn_res = hfn << PDCP_C_PLANE_PDB_HFN_SHIFT;
+ pdb.bearer_dir_res = (uint32_t)
+ ((bearer << PDCP_C_PLANE_PDB_BEARER_SHIFT) |
+ (direction << PDCP_C_PLANE_PDB_DIR_SHIFT));
+ pdb.hfn_thr_res =
+ hfn_threshold << PDCP_C_PLANE_PDB_HFN_THR_SHIFT;
+
+ /* copy PDB in descriptor*/
+ __rta_out32(p, pdb.opt_res.opt);
+ __rta_out32(p, pdb.hfn_res);
+ __rta_out32(p, pdb.bearer_dir_res);
+ __rta_out32(p, pdb.hfn_thr_res);
+
+ break;
+
+ default:
+ return PDCP_PDB_TYPE_INVALID;
+ }
+
+ return pdb_mask[cipherdata->algtype][authdata->algtype];
+}
+
+/*
+ * PDCP UPlane PDB creation function
+ */
+static inline int
+cnstr_pdcp_u_plane_pdb(struct program *p,
+ enum pdcp_sn_size sn_size,
+ uint32_t hfn, unsigned short bearer,
+ unsigned short direction,
+ uint32_t hfn_threshold)
+{
+ struct pdcp_pdb pdb;
+ /* Read options from user */
+ /* Depending on sequence number length, the HFN and HFN threshold
+ * have different lengths.
+ */
+ memset(&pdb, 0x00, sizeof(struct pdcp_pdb));
+
+ switch (sn_size) {
+ case PDCP_SN_SIZE_7:
+ pdb.opt_res.opt |= PDCP_U_PLANE_PDB_OPT_SHORT_SN;
+ pdb.hfn_res = hfn << PDCP_U_PLANE_PDB_SHORT_SN_HFN_SHIFT;
+ pdb.hfn_thr_res =
+ hfn_threshold<<PDCP_U_PLANE_PDB_SHORT_SN_HFN_THR_SHIFT;
+ break;
+
+ case PDCP_SN_SIZE_12:
+ pdb.opt_res.opt &= (uint32_t)(~PDCP_U_PLANE_PDB_OPT_SHORT_SN);
+ pdb.hfn_res = hfn << PDCP_U_PLANE_PDB_LONG_SN_HFN_SHIFT;
+ pdb.hfn_thr_res =
+ hfn_threshold<<PDCP_U_PLANE_PDB_LONG_SN_HFN_THR_SHIFT;
+ break;
+
+ case PDCP_SN_SIZE_15:
+ pdb.opt_res.opt = (uint32_t)(PDCP_U_PLANE_PDB_OPT_15B_SN);
+ pdb.hfn_res = hfn << PDCP_U_PLANE_PDB_15BIT_SN_HFN_SHIFT;
+ pdb.hfn_thr_res =
+ hfn_threshold<<PDCP_U_PLANE_PDB_15BIT_SN_HFN_THR_SHIFT;
+ break;
+
+ default:
+ pr_err("Invalid Sequence Number Size setting in PDB\n");
+ return -EINVAL;
+ }
+
+ pdb.bearer_dir_res = (uint32_t)
+ ((bearer << PDCP_U_PLANE_PDB_BEARER_SHIFT) |
+ (direction << PDCP_U_PLANE_PDB_DIR_SHIFT));
+
+ /* copy PDB in descriptor*/
+ __rta_out32(p, pdb.opt_res.opt);
+ __rta_out32(p, pdb.hfn_res);
+ __rta_out32(p, pdb.bearer_dir_res);
+ __rta_out32(p, pdb.hfn_thr_res);
+
+ return 0;
+}
+/**
+ * cnstr_shdsc_pdcp_c_plane_encap - Function for creating a PDCP Control Plane
+ * encapsulation descriptor.
+ * @descbuf: pointer to buffer for descriptor construction
+ * @ps: if 36/40bit addressing is desired, this parameter must be true
+ * @swap: must be true when core endianness doesn't match SEC endianness
+ * @hfn: starting Hyper Frame Number to be used together with the SN from the
+ * PDCP frames.
+ * @bearer: radio bearer ID
+ * @direction: the direction of the PDCP frame (UL/DL)
+ * @hfn_threshold: HFN value that once reached triggers a warning from SEC that
+ * keys should be renegotiated at the earliest convenience.
+ * @cipherdata: pointer to block cipher transform definitions
+ * Valid algorithm values are those from cipher_type_pdcp enum.
+ * @authdata: pointer to authentication transform definitions
+ * Valid algorithm values are those from auth_type_pdcp enum.
+ * @era_2_sw_hfn_ovrd: if software HFN override mechanism is desired for
+ * this descriptor. Note: Can only be used for
+ * SEC ERA 2.
+ * Return: size of descriptor written in words or negative number on error.
+ * Once the function returns, the value of this parameter can be used
+ * for reclaiming the space that wasn't used for the descriptor.
+ *
+ * Note: descbuf must be large enough to contain a full 256 byte long
+ * descriptor; after the function returns, by subtracting the actual number of
+ * bytes used, the user can reuse the remaining buffer space for other purposes.
+ */
+static inline int
+cnstr_shdsc_pdcp_c_plane_encap(uint32_t *descbuf,
+ bool ps,
+ bool swap,
+ uint32_t hfn,
+ unsigned char bearer,
+ unsigned char direction,
+ uint32_t hfn_threshold,
+ struct alginfo *cipherdata,
+ struct alginfo *authdata,
+ unsigned char era_2_sw_hfn_ovrd)
+{
+ static int
+ (*pdcp_cp_fp[PDCP_CIPHER_TYPE_INVALID][PDCP_AUTH_TYPE_INVALID])
+ (struct program*, bool swap, struct alginfo *,
+ struct alginfo *, unsigned int,
+ unsigned char __maybe_unused) = {
+ { /* NULL */
+ pdcp_insert_cplane_null_op, /* NULL */
+ pdcp_insert_cplane_int_only_op, /* SNOW f9 */
+ pdcp_insert_cplane_int_only_op, /* AES CMAC */
+ pdcp_insert_cplane_int_only_op /* ZUC-I */
+ },
+ { /* SNOW f8 */
+ pdcp_insert_cplane_enc_only_op, /* NULL */
+ pdcp_insert_cplane_acc_op, /* SNOW f9 */
+ pdcp_insert_cplane_snow_aes_op, /* AES CMAC */
+ pdcp_insert_cplane_snow_zuc_op /* ZUC-I */
+ },
+ { /* AES CTR */
+ pdcp_insert_cplane_enc_only_op, /* NULL */
+ pdcp_insert_cplane_aes_snow_op, /* SNOW f9 */
+ pdcp_insert_cplane_acc_op, /* AES CMAC */
+ pdcp_insert_cplane_aes_zuc_op /* ZUC-I */
+ },
+ { /* ZUC-E */
+ pdcp_insert_cplane_enc_only_op, /* NULL */
+ pdcp_insert_cplane_zuc_snow_op, /* SNOW f9 */
+ pdcp_insert_cplane_zuc_aes_op, /* AES CMAC */
+ pdcp_insert_cplane_acc_op /* ZUC-I */
+ },
+ };
+ static enum rta_share_type
+ desc_share[PDCP_CIPHER_TYPE_INVALID][PDCP_AUTH_TYPE_INVALID] = {
+ { /* NULL */
+ SHR_WAIT, /* NULL */
+ SHR_ALWAYS, /* SNOW f9 */
+ SHR_ALWAYS, /* AES CMAC */
+ SHR_ALWAYS /* ZUC-I */
+ },
+ { /* SNOW f8 */
+ SHR_ALWAYS, /* NULL */
+ SHR_ALWAYS, /* SNOW f9 */
+ SHR_WAIT, /* AES CMAC */
+ SHR_WAIT /* ZUC-I */
+ },
+ { /* AES CTR */
+ SHR_ALWAYS, /* NULL */
+ SHR_ALWAYS, /* SNOW f9 */
+ SHR_ALWAYS, /* AES CMAC */
+ SHR_WAIT /* ZUC-I */
+ },
+ { /* ZUC-E */
+ SHR_ALWAYS, /* NULL */
+ SHR_WAIT, /* SNOW f9 */
+ SHR_WAIT, /* AES CMAC */
+ SHR_ALWAYS /* ZUC-I */
+ },
+ };
+ enum pdb_type_e pdb_type;
+ struct program prg;
+ struct program *p = &prg;
+ int err;
+ LABEL(pdb_end);
+
+ if (rta_sec_era != RTA_SEC_ERA_2 && era_2_sw_hfn_ovrd) {
+ pr_err("Cannot select SW HFN override for other era than 2");
+ return -EINVAL;
+ }
+
+ PROGRAM_CNTXT_INIT(p, descbuf, 0);
+ if (swap)
+ PROGRAM_SET_BSWAP(p);
+ if (ps)
+ PROGRAM_SET_36BIT_ADDR(p);
+
+ SHR_HDR(p, desc_share[cipherdata->algtype][authdata->algtype], 0, 0);
+
+ pdb_type = cnstr_pdcp_c_plane_pdb(p,
+ hfn,
+ bearer,
+ direction,
+ hfn_threshold,
+ cipherdata,
+ authdata);
+
+ SET_LABEL(p, pdb_end);
+
+ err = insert_hfn_ov_op(p, PDCP_SN_SIZE_5, pdb_type,
+ era_2_sw_hfn_ovrd);
+ if (err)
+ return err;
+
+ err = pdcp_cp_fp[cipherdata->algtype][authdata->algtype](p,
+ swap,
+ cipherdata,
+ authdata,
+ OP_TYPE_ENCAP_PROTOCOL,
+ era_2_sw_hfn_ovrd);
+ if (err)
+ return err;
+
+ PATCH_HDR(p, 0, pdb_end);
+
+ return PROGRAM_FINALIZE(p);
+}
+
+/**
+ * cnstr_shdsc_pdcp_c_plane_decap - Function for creating a PDCP Control Plane
+ * decapsulation descriptor.
+ * @descbuf: pointer to buffer for descriptor construction
+ * @ps: if 36/40bit addressing is desired, this parameter must be true
+ * @swap: must be true when core endianness doesn't match SEC endianness
+ * @hfn: starting Hyper Frame Number to be used together with the SN from the
+ * PDCP frames.
+ * @bearer: radio bearer ID
+ * @direction: the direction of the PDCP frame (UL/DL)
+ * @hfn_threshold: HFN value that once reached triggers a warning from SEC that
+ * keys should be renegotiated at the earliest convenience.
+ * @cipherdata: pointer to block cipher transform definitions
+ * Valid algorithm values are those from cipher_type_pdcp enum.
+ * @authdata: pointer to authentication transform definitions
+ * Valid algorithm values are those from auth_type_pdcp enum.
+ * @era_2_sw_hfn_ovrd: if software HFN override mechanism is desired for
+ * this descriptor. Note: Can only be used for
+ * SEC ERA 2.
+ *
+ * Return: size of descriptor written in words or negative number on error.
+ * Once the function returns, the value of this parameter can be used
+ * for reclaiming the space that wasn't used for the descriptor.
+ *
+ * Note: descbuf must be large enough to contain a full 256 byte long
+ * descriptor; after the function returns, by subtracting the actual number of
+ * bytes used, the user can reuse the remaining buffer space for other purposes.
+ */
+static inline int
+cnstr_shdsc_pdcp_c_plane_decap(uint32_t *descbuf,
+ bool ps,
+ bool swap,
+ uint32_t hfn,
+ unsigned char bearer,
+ unsigned char direction,
+ uint32_t hfn_threshold,
+ struct alginfo *cipherdata,
+ struct alginfo *authdata,
+ unsigned char era_2_sw_hfn_ovrd)
+{
+ static int
+ (*pdcp_cp_fp[PDCP_CIPHER_TYPE_INVALID][PDCP_AUTH_TYPE_INVALID])
+ (struct program*, bool swap, struct alginfo *,
+ struct alginfo *, unsigned int, unsigned char) = {
+ { /* NULL */
+ pdcp_insert_cplane_null_op, /* NULL */
+ pdcp_insert_cplane_int_only_op, /* SNOW f9 */
+ pdcp_insert_cplane_int_only_op, /* AES CMAC */
+ pdcp_insert_cplane_int_only_op /* ZUC-I */
+ },
+ { /* SNOW f8 */
+ pdcp_insert_cplane_enc_only_op, /* NULL */
+ pdcp_insert_cplane_acc_op, /* SNOW f9 */
+ pdcp_insert_cplane_snow_aes_op, /* AES CMAC */
+ pdcp_insert_cplane_snow_zuc_op /* ZUC-I */
+ },
+ { /* AES CTR */
+ pdcp_insert_cplane_enc_only_op, /* NULL */
+ pdcp_insert_cplane_aes_snow_op, /* SNOW f9 */
+ pdcp_insert_cplane_acc_op, /* AES CMAC */
+ pdcp_insert_cplane_aes_zuc_op /* ZUC-I */
+ },
+ { /* ZUC-E */
+ pdcp_insert_cplane_enc_only_op, /* NULL */
+ pdcp_insert_cplane_zuc_snow_op, /* SNOW f9 */
+ pdcp_insert_cplane_zuc_aes_op, /* AES CMAC */
+ pdcp_insert_cplane_acc_op /* ZUC-I */
+ },
+ };
+ static enum rta_share_type
+ desc_share[PDCP_CIPHER_TYPE_INVALID][PDCP_AUTH_TYPE_INVALID] = {
+ { /* NULL */
+ SHR_WAIT, /* NULL */
+ SHR_ALWAYS, /* SNOW f9 */
+ SHR_ALWAYS, /* AES CMAC */
+ SHR_ALWAYS /* ZUC-I */
+ },
+ { /* SNOW f8 */
+ SHR_ALWAYS, /* NULL */
+ SHR_ALWAYS, /* SNOW f9 */
+ SHR_WAIT, /* AES CMAC */
+ SHR_WAIT /* ZUC-I */
+ },
+ { /* AES CTR */
+ SHR_ALWAYS, /* NULL */
+ SHR_ALWAYS, /* SNOW f9 */
+ SHR_ALWAYS, /* AES CMAC */
+ SHR_WAIT /* ZUC-I */
+ },
+ { /* ZUC-E */
+ SHR_ALWAYS, /* NULL */
+ SHR_WAIT, /* SNOW f9 */
+ SHR_WAIT, /* AES CMAC */
+ SHR_ALWAYS /* ZUC-I */
+ },
+ };
+ enum pdb_type_e pdb_type;
+ struct program prg;
+ struct program *p = &prg;
+ int err;
+ LABEL(pdb_end);
+
+ if (rta_sec_era != RTA_SEC_ERA_2 && era_2_sw_hfn_ovrd) {
+ pr_err("Cannot select SW HFN override for other era than 2");
+ return -EINVAL;
+ }
+
+ PROGRAM_CNTXT_INIT(p, descbuf, 0);
+ if (swap)
+ PROGRAM_SET_BSWAP(p);
+ if (ps)
+ PROGRAM_SET_36BIT_ADDR(p);
+
+ SHR_HDR(p, desc_share[cipherdata->algtype][authdata->algtype], 0, 0);
+
+ pdb_type = cnstr_pdcp_c_plane_pdb(p,
+ hfn,
+ bearer,
+ direction,
+ hfn_threshold,
+ cipherdata,
+ authdata);
+
+ SET_LABEL(p, pdb_end);
+
+ err = insert_hfn_ov_op(p, PDCP_SN_SIZE_5, pdb_type,
+ era_2_sw_hfn_ovrd);
+ if (err)
+ return err;
+
+ err = pdcp_cp_fp[cipherdata->algtype][authdata->algtype](p,
+ swap,
+ cipherdata,
+ authdata,
+ OP_TYPE_DECAP_PROTOCOL,
+ era_2_sw_hfn_ovrd);
+ if (err)
+ return err;
+
+ PATCH_HDR(p, 0, pdb_end);
+
+ return PROGRAM_FINALIZE(p);
+}
+
+/**
+ * cnstr_shdsc_pdcp_u_plane_encap - Function for creating a PDCP User Plane
+ * encapsulation descriptor.
+ * @descbuf: pointer to buffer for descriptor construction
+ * @ps: if 36/40bit addressing is desired, this parameter must be true
+ * @swap: must be true when core endianness doesn't match SEC endianness
+ * @sn_size: selects Sequence Number Size: 7/12/15 bits
+ * @hfn: starting Hyper Frame Number to be used together with the SN from the
+ * PDCP frames.
+ * @bearer: radio bearer ID
+ * @direction: the direction of the PDCP frame (UL/DL)
+ * @hfn_threshold: HFN value that once reached triggers a warning from SEC that
+ * keys should be renegotiated at the earliest convenience.
+ * @cipherdata: pointer to block cipher transform definitions
+ * Valid algorithm values are those from cipher_type_pdcp enum.
+ * @era_2_sw_hfn_ovrd: if software HFN override mechanism is desired for
+ * this descriptor. Note: Can only be used for
+ * SEC ERA 2.
+ *
+ * Return: size of descriptor written in words or negative number on error.
+ * Once the function returns, the value of this parameter can be used
+ * for reclaiming the space that wasn't used for the descriptor.
+ *
+ * Note: descbuf must be large enough to contain a full 256 byte long
+ * descriptor; after the function returns, by subtracting the actual number of
+ * bytes used, the user can reuse the remaining buffer space for other purposes.
+ */
+static inline int
+cnstr_shdsc_pdcp_u_plane_encap(uint32_t *descbuf,
+ bool ps,
+ bool swap,
+ enum pdcp_sn_size sn_size,
+ uint32_t hfn,
+ unsigned short bearer,
+ unsigned short direction,
+ uint32_t hfn_threshold,
+ struct alginfo *cipherdata,
+ unsigned char era_2_sw_hfn_ovrd)
+{
+ struct program prg;
+ struct program *p = &prg;
+ int err;
+ LABEL(pdb_end);
+
+ if (rta_sec_era != RTA_SEC_ERA_2 && era_2_sw_hfn_ovrd) {
+ pr_err("Cannot select SW HFN ovrd for other era than 2");
+ return -EINVAL;
+ }
+
+ PROGRAM_CNTXT_INIT(p, descbuf, 0);
+ if (swap)
+ PROGRAM_SET_BSWAP(p);
+ if (ps)
+ PROGRAM_SET_36BIT_ADDR(p);
+
+ SHR_HDR(p, SHR_ALWAYS, 0, 0);
+ if (cnstr_pdcp_u_plane_pdb(p, sn_size, hfn, bearer, direction,
+ hfn_threshold)) {
+ pr_err("Error creating PDCP UPlane PDB\n");
+ return -EINVAL;
+ }
+ SET_LABEL(p, pdb_end);
+
+ err = insert_hfn_ov_op(p, sn_size, PDCP_PDB_TYPE_FULL_PDB,
+ era_2_sw_hfn_ovrd);
+ if (err)
+ return err;
+
+ switch (sn_size) {
+ case PDCP_SN_SIZE_7:
+ case PDCP_SN_SIZE_12:
+ switch (cipherdata->algtype) {
+ case PDCP_CIPHER_TYPE_ZUC:
+ if (rta_sec_era < RTA_SEC_ERA_5) {
+ pr_err("Invalid era for selected algorithm\n");
+ return -ENOTSUP;
+ }
+ case PDCP_CIPHER_TYPE_AES:
+ case PDCP_CIPHER_TYPE_SNOW:
+ /* Insert Cipher Key */
+ KEY(p, KEY1, cipherdata->key_enc_flags,
+ (uint64_t)cipherdata->key, cipherdata->keylen,
+ INLINE_KEY(cipherdata));
+ PROTOCOL(p, OP_TYPE_ENCAP_PROTOCOL,
+ OP_PCLID_LTE_PDCP_USER,
+ (uint16_t)cipherdata->algtype);
+ break;
+ case PDCP_CIPHER_TYPE_NULL:
+ insert_copy_frame_op(p,
+ cipherdata,
+ OP_TYPE_ENCAP_PROTOCOL);
+ break;
+ default:
+ pr_err("%s: Invalid encrypt algorithm selected: %d\n",
+ "cnstr_pcl_shdsc_pdcp_u_plane_decap",
+ cipherdata->algtype);
+ return -EINVAL;
+ }
+ break;
+
+ case PDCP_SN_SIZE_15:
+ switch (cipherdata->algtype) {
+ case PDCP_CIPHER_TYPE_NULL:
+ insert_copy_frame_op(p,
+ cipherdata,
+ OP_TYPE_ENCAP_PROTOCOL);
+ break;
+
+ default:
+ err = pdcp_insert_uplane_15bit_op(p, swap, cipherdata,
+ OP_TYPE_ENCAP_PROTOCOL);
+ if (err)
+ return err;
+ break;
+ }
+ break;
+
+ case PDCP_SN_SIZE_5:
+ default:
+ pr_err("Invalid SN size selected\n");
+ return -ENOTSUP;
+ }
+
+ PATCH_HDR(p, 0, pdb_end);
+ return PROGRAM_FINALIZE(p);
+}
+
+/**
+ * cnstr_shdsc_pdcp_u_plane_decap - Function for creating a PDCP User Plane
+ * decapsulation descriptor.
+ * @descbuf: pointer to buffer for descriptor construction
+ * @ps: if 36/40bit addressing is desired, this parameter must be true
+ * @swap: must be true when core endianness doesn't match SEC endianness
+ * @sn_size: selects Sequence Number Size: 7/12/15 bits
+ * @hfn: starting Hyper Frame Number to be used together with the SN from the
+ * PDCP frames.
+ * @bearer: radio bearer ID
+ * @direction: the direction of the PDCP frame (UL/DL)
+ * @hfn_threshold: HFN value that once reached triggers a warning from SEC that
+ * keys should be renegotiated at the earliest convenience.
+ * @cipherdata: pointer to block cipher transform definitions
+ * Valid algorithm values are those from cipher_type_pdcp enum.
+ * @era_2_sw_hfn_ovrd: if software HFN override mechanism is desired for
+ * this descriptor. Note: Can only be used for
+ * SEC ERA 2.
+ *
+ * Return: size of descriptor written in words or negative number on error.
+ * Once the function returns, the value of this parameter can be used
+ * for reclaiming the space that wasn't used for the descriptor.
+ *
+ * Note: descbuf must be large enough to contain a full 256 byte long
+ * descriptor; after the function returns, by subtracting the actual number of
+ * bytes used, the user can reuse the remaining buffer space for other purposes.
+ */
+static inline int
+cnstr_shdsc_pdcp_u_plane_decap(uint32_t *descbuf,
+ bool ps,
+ bool swap,
+ enum pdcp_sn_size sn_size,
+ uint32_t hfn,
+ unsigned short bearer,
+ unsigned short direction,
+ uint32_t hfn_threshold,
+ struct alginfo *cipherdata,
+ unsigned char era_2_sw_hfn_ovrd)
+{
+ struct program prg;
+ struct program *p = &prg;
+ int err;
+ LABEL(pdb_end);
+
+ if (rta_sec_era != RTA_SEC_ERA_2 && era_2_sw_hfn_ovrd) {
+ pr_err("Cannot select SW HFN override for other era than 2");
+ return -EINVAL;
+ }
+
+ PROGRAM_CNTXT_INIT(p, descbuf, 0);
+ if (swap)
+ PROGRAM_SET_BSWAP(p);
+ if (ps)
+ PROGRAM_SET_36BIT_ADDR(p);
+
+ SHR_HDR(p, SHR_ALWAYS, 0, 0);
+ if (cnstr_pdcp_u_plane_pdb(p, sn_size, hfn, bearer, direction,
+ hfn_threshold)) {
+ pr_err("Error creating PDCP UPlane PDB\n");
+ return -EINVAL;
+ }
+ SET_LABEL(p, pdb_end);
+
+ err = insert_hfn_ov_op(p, sn_size, PDCP_PDB_TYPE_FULL_PDB,
+ era_2_sw_hfn_ovrd);
+ if (err)
+ return err;
+
+ switch (sn_size) {
+ case PDCP_SN_SIZE_7:
+ case PDCP_SN_SIZE_12:
+ switch (cipherdata->algtype) {
+ case PDCP_CIPHER_TYPE_ZUC:
+ if (rta_sec_era < RTA_SEC_ERA_5) {
+ pr_err("Invalid era for selected algorithm\n");
+ return -ENOTSUP;
+ }
+ case PDCP_CIPHER_TYPE_AES:
+ case PDCP_CIPHER_TYPE_SNOW:
+ /* Insert Cipher Key */
+ KEY(p, KEY1, cipherdata->key_enc_flags,
+ cipherdata->key, cipherdata->keylen,
+ INLINE_KEY(cipherdata));
+ PROTOCOL(p, OP_TYPE_DECAP_PROTOCOL,
+ OP_PCLID_LTE_PDCP_USER,
+ (uint16_t)cipherdata->algtype);
+ break;
+ case PDCP_CIPHER_TYPE_NULL:
+ insert_copy_frame_op(p,
+ cipherdata,
+ OP_TYPE_DECAP_PROTOCOL);
+ break;
+ default:
+ pr_err("%s: Invalid encrypt algorithm selected: %d\n",
+ "cnstr_pcl_shdsc_pdcp_u_plane_decap",
+ cipherdata->algtype);
+ return -EINVAL;
+ }
+ break;
+
+ case PDCP_SN_SIZE_15:
+ switch (cipherdata->algtype) {
+ case PDCP_CIPHER_TYPE_NULL:
+ insert_copy_frame_op(p,
+ cipherdata,
+ OP_TYPE_DECAP_PROTOCOL);
+ break;
+
+ default:
+ err = pdcp_insert_uplane_15bit_op(p, swap, cipherdata,
+ OP_TYPE_DECAP_PROTOCOL);
+ if (err)
+ return err;
+ break;
+ }
+ break;
+
+ case PDCP_SN_SIZE_5:
+ default:
+ pr_err("Invalid SN size selected\n");
+ return -ENOTSUP;
+ }
+
+ PATCH_HDR(p, 0, pdb_end);
+ return PROGRAM_FINALIZE(p);
+}
+
+/**
+ * cnstr_shdsc_pdcp_short_mac - Function for creating a PDCP Short MAC
+ * descriptor.
+ * @descbuf: pointer to buffer for descriptor construction
+ * @ps: if 36/40bit addressing is desired, this parameter must be true
+ * @swap: must be true when core endianness doesn't match SEC endianness
+ * @authdata: pointer to authentication transform definitions
+ * Valid algorithm values are those from auth_type_pdcp enum.
+ *
+ * Return: size of descriptor written in words or negative number on error.
+ * Once the function returns, the value of this parameter can be used
+ * for reclaiming the space that wasn't used for the descriptor.
+ *
+ * Note: descbuf must be large enough to contain a full 256 byte long
+ * descriptor; after the function returns, by subtracting the actual number of
+ * bytes used, the user can reuse the remaining buffer space for other purposes.
+ */
+static inline int
+cnstr_shdsc_pdcp_short_mac(uint32_t *descbuf,
+ bool ps,
+ bool swap,
+ struct alginfo *authdata)
+{
+ struct program prg;
+ struct program *p = &prg;
+ uint32_t iv[3] = {0, 0, 0};
+ LABEL(local_offset);
+ REFERENCE(move_cmd_read_descbuf);
+ REFERENCE(move_cmd_write_descbuf);
+
+ PROGRAM_CNTXT_INIT(p, descbuf, 0);
+ if (swap)
+ PROGRAM_SET_BSWAP(p);
+ if (ps)
+ PROGRAM_SET_36BIT_ADDR(p);
+
+ SHR_HDR(p, SHR_ALWAYS, 1, 0);
+
+ if (rta_sec_era > RTA_SEC_ERA_2) {
+ MATHB(p, SEQINSZ, SUB, ZERO, VSEQINSZ, 4, 0);
+ MATHB(p, SEQINSZ, SUB, ZERO, MATH1, 4, 0);
+ } else {
+ MATHB(p, SEQINSZ, ADD, ONE, MATH1, 4, 0);
+ MATHB(p, MATH1, SUB, ONE, MATH1, 4, 0);
+ MATHB(p, ZERO, ADD, MATH1, VSEQINSZ, 4, 0);
+ MOVE(p, MATH1, 0, MATH0, 0, 8, IMMED);
+
+ /*
+ * Since MOVELEN is available only starting with
+ * SEC ERA 3, use poor man's MOVELEN: create a MOVE
+ * command dynamically by writing the length from M1 by
+ * OR-ing the command in the M1 register and MOVE the
+ * result into the descriptor buffer. Care must be taken
+ * wrt. the location of the command because of SEC
+ * pipelining. The actual MOVEs are written at the end
+ * of the descriptor due to calculations needed on the
+ * offset in the descriptor for the MOVE command.
+ */
+ move_cmd_read_descbuf = MOVE(p, DESCBUF, 0, MATH0, 0, 6,
+ IMMED);
+ move_cmd_write_descbuf = MOVE(p, MATH0, 0, DESCBUF, 0, 8,
+ WAITCOMP | IMMED);
+ }
+ MATHB(p, ZERO, ADD, MATH1, VSEQOUTSZ, 4, 0);
+
+ switch (authdata->algtype) {
+ case PDCP_AUTH_TYPE_NULL:
+ SEQFIFOSTORE(p, MSG, 0, 0, VLF);
+ if (rta_sec_era > RTA_SEC_ERA_2) {
+ MOVE(p, AB1, 0, OFIFO, 0, MATH1, 0);
+ } else {
+ SET_LABEL(p, local_offset);
+
+ /* Shut off automatic Info FIFO entries */
+ LOAD(p, 0, DCTRL, LDOFF_DISABLE_AUTO_NFIFO, 0, IMMED);
+
+ /* Placeholder for MOVE command with length from M1
+ * register
+ */
+ MOVE(p, IFIFOAB1, 0, OFIFO, 0, 0, IMMED);
+
+ /* Enable automatic Info FIFO entries */
+ LOAD(p, 0, DCTRL, LDOFF_ENABLE_AUTO_NFIFO, 0, IMMED);
+ }
+
+ LOAD(p, (uintptr_t)iv, MATH0, 0, 8, IMMED | COPY);
+ SEQFIFOLOAD(p, MSG1, 0, VLF | LAST1 | LAST2 | FLUSH1);
+ SEQSTORE(p, MATH0, 0, 4, 0);
+
+ break;
+
+ case PDCP_AUTH_TYPE_SNOW:
+ iv[0] = 0xFFFFFFFF;
+ iv[1] = swap ? swab32(0x04000000) : 0x04000000;
+ iv[2] = swap ? swab32(0xF8000000) : 0xF8000000;
+
+ KEY(p, KEY2, authdata->key_enc_flags, authdata->key,
+ authdata->keylen, INLINE_KEY(authdata));
+ LOAD(p, (uintptr_t)&iv, CONTEXT2, 0, 12, IMMED | COPY);
+ ALG_OPERATION(p, OP_ALG_ALGSEL_SNOW_F9,
+ OP_ALG_AAI_F9,
+ OP_ALG_AS_INITFINAL,
+ ICV_CHECK_DISABLE,
+ DIR_ENC);
+ SEQFIFOSTORE(p, MSG, 0, 0, VLF);
+
+ if (rta_sec_era > RTA_SEC_ERA_2) {
+ MOVE(p, AB1, 0, OFIFO, 0, MATH1, 0);
+ } else {
+ SET_LABEL(p, local_offset);
+
+
+ /* Shut off automatic Info FIFO entries */
+ LOAD(p, 0, DCTRL, LDOFF_DISABLE_AUTO_NFIFO, 0, IMMED);
+
+ /* Placeholder for MOVE command with length from M1
+ * register
+ */
+ MOVE(p, IFIFOAB1, 0, OFIFO, 0, 0, IMMED);
+
+ /* Enable automatic Info FIFO entries */
+ LOAD(p, 0, DCTRL, LDOFF_ENABLE_AUTO_NFIFO, 0, IMMED);
+ }
+ SEQFIFOLOAD(p, MSGINSNOOP, 0, VLF | LAST1 | LAST2 | FLUSH1);
+ SEQSTORE(p, CONTEXT2, 0, 4, 0);
+
+ break;
+
+ case PDCP_AUTH_TYPE_AES:
+ iv[0] = 0xFFFFFFFF;
+ iv[1] = swap ? swab32(0xFC000000) : 0xFC000000;
+ iv[2] = 0x00000000; /* unused */
+
+ KEY(p, KEY1, authdata->key_enc_flags, authdata->key,
+ authdata->keylen, INLINE_KEY(authdata));
+ LOAD(p, (uintptr_t)&iv, MATH0, 0, 8, IMMED | COPY);
+ MOVE(p, MATH0, 0, IFIFOAB1, 0, 8, IMMED);
+ ALG_OPERATION(p, OP_ALG_ALGSEL_AES,
+ OP_ALG_AAI_CMAC,
+ OP_ALG_AS_INITFINAL,
+ ICV_CHECK_DISABLE,
+ DIR_ENC);
+ SEQFIFOSTORE(p, MSG, 0, 0, VLF);
+
+ if (rta_sec_era > RTA_SEC_ERA_2) {
+ MOVE(p, AB2, 0, OFIFO, 0, MATH1, 0);
+ } else {
+ SET_LABEL(p, local_offset);
+
+ /* Shut off automatic Info FIFO entries */
+ LOAD(p, 0, DCTRL, LDOFF_DISABLE_AUTO_NFIFO, 0, IMMED);
+
+ /* Placeholder for MOVE command with length from M1
+ * register
+ */
+ MOVE(p, IFIFOAB2, 0, OFIFO, 0, 0, IMMED);
+
+ /* Enable automatic Info FIFO entries */
+ LOAD(p, 0, DCTRL, LDOFF_ENABLE_AUTO_NFIFO, 0, IMMED);
+ }
+ SEQFIFOLOAD(p, MSGINSNOOP, 0, VLF | LAST1 | LAST2 | FLUSH1);
+ SEQSTORE(p, CONTEXT1, 0, 4, 0);
+
+ break;
+
+ case PDCP_AUTH_TYPE_ZUC:
+ if (rta_sec_era < RTA_SEC_ERA_5) {
+ pr_err("Invalid era for selected algorithm\n");
+ return -ENOTSUP;
+ }
+ iv[0] = 0xFFFFFFFF;
+ iv[1] = swap ? swab32(0xFC000000) : 0xFC000000;
+ iv[2] = 0x00000000; /* unused */
+
+ KEY(p, KEY2, authdata->key_enc_flags, authdata->key,
+ authdata->keylen, INLINE_KEY(authdata));
+ LOAD(p, (uintptr_t)&iv, CONTEXT2, 0, 12, IMMED | COPY);
+ ALG_OPERATION(p, OP_ALG_ALGSEL_ZUCA,
+ OP_ALG_AAI_F9,
+ OP_ALG_AS_INITFINAL,
+ ICV_CHECK_DISABLE,
+ DIR_ENC);
+ SEQFIFOSTORE(p, MSG, 0, 0, VLF);
+ MOVE(p, AB1, 0, OFIFO, 0, MATH1, 0);
+ SEQFIFOLOAD(p, MSGINSNOOP, 0, VLF | LAST1 | LAST2 | FLUSH1);
+ SEQSTORE(p, CONTEXT2, 0, 4, 0);
+
+ break;
+
+ default:
+ pr_err("%s: Invalid integrity algorithm selected: %d\n",
+ "cnstr_shdsc_pdcp_short_mac", authdata->algtype);
+ return -EINVAL;
+ }
+
+
+ if (rta_sec_era < RTA_SEC_ERA_3) {
+ PATCH_MOVE(p, move_cmd_read_descbuf, local_offset);
+ PATCH_MOVE(p, move_cmd_write_descbuf, local_offset);
+ }
+
+ return PROGRAM_FINALIZE(p);
+}
+
+#endif /* __DESC_PDCP_H__ */
git.droids-corp.org / dpdk.git / commitdiff