--- /dev/null
+/*-
+ * This file is provided under a dual BSD/GPLv2 license. When using or
+ * redistributing this file, you may do so under either license.
+ *
+ * BSD LICENSE
+ *
+ * Copyright 2008-2016 Freescale Semiconductor Inc.
+ * Copyright (c) 2016 NXP.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of the above-listed copyright holders nor the
+ * names of any contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * GPL LICENSE SUMMARY
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __RTA_LOAD_CMD_H__
+#define __RTA_LOAD_CMD_H__
+
+extern enum rta_sec_era rta_sec_era;
+
+/* Allowed length and offset masks for each SEC Era in case DST = DCTRL */
+static const uint32_t load_len_mask_allowed[] = {
+ 0x000000ee,
+ 0x000000fe,
+ 0x000000fe,
+ 0x000000fe,
+ 0x000000fe,
+ 0x000000fe,
+ 0x000000fe,
+ 0x000000fe
+};
+
+static const uint32_t load_off_mask_allowed[] = {
+ 0x0000000f,
+ 0x000000ff,
+ 0x000000ff,
+ 0x000000ff,
+ 0x000000ff,
+ 0x000000ff,
+ 0x000000ff,
+ 0x000000ff
+};
+
+#define IMM_MUST 0
+#define IMM_CAN 1
+#define IMM_NO 2
+#define IMM_DSNM 3 /* it doesn't matter the src type */
+
+enum e_lenoff {
+ LENOF_03,
+ LENOF_4,
+ LENOF_48,
+ LENOF_448,
+ LENOF_18,
+ LENOF_32,
+ LENOF_24,
+ LENOF_16,
+ LENOF_8,
+ LENOF_128,
+ LENOF_256,
+ DSNM /* it doesn't matter the length/offset values */
+};
+
+struct load_map {
+ uint32_t dst;
+ uint32_t dst_opcode;
+ enum e_lenoff len_off;
+ uint8_t imm_src;
+
+};
+
+static const struct load_map load_dst[] = {
+/*1*/ { KEY1SZ, LDST_CLASS_1_CCB | LDST_SRCDST_WORD_KEYSZ_REG,
+ LENOF_4, IMM_MUST },
+ { KEY2SZ, LDST_CLASS_2_CCB | LDST_SRCDST_WORD_KEYSZ_REG,
+ LENOF_4, IMM_MUST },
+ { DATA1SZ, LDST_CLASS_1_CCB | LDST_SRCDST_WORD_DATASZ_REG,
+ LENOF_448, IMM_MUST },
+ { DATA2SZ, LDST_CLASS_2_CCB | LDST_SRCDST_WORD_DATASZ_REG,
+ LENOF_448, IMM_MUST },
+ { ICV1SZ, LDST_CLASS_1_CCB | LDST_SRCDST_WORD_ICVSZ_REG,
+ LENOF_4, IMM_MUST },
+ { ICV2SZ, LDST_CLASS_2_CCB | LDST_SRCDST_WORD_ICVSZ_REG,
+ LENOF_4, IMM_MUST },
+ { CCTRL, LDST_CLASS_IND_CCB | LDST_SRCDST_WORD_CHACTRL,
+ LENOF_4, IMM_MUST },
+ { DCTRL, LDST_CLASS_DECO | LDST_IMM | LDST_SRCDST_WORD_DECOCTRL,
+ DSNM, IMM_DSNM },
+ { ICTRL, LDST_CLASS_IND_CCB | LDST_SRCDST_WORD_IRQCTRL,
+ LENOF_4, IMM_MUST },
+ { DPOVRD, LDST_CLASS_DECO | LDST_SRCDST_WORD_DECO_PCLOVRD,
+ LENOF_4, IMM_MUST },
+ { CLRW, LDST_CLASS_IND_CCB | LDST_SRCDST_WORD_CLRW,
+ LENOF_4, IMM_MUST },
+ { AAD1SZ, LDST_CLASS_1_CCB | LDST_SRCDST_WORD_DECO_AAD_SZ,
+ LENOF_4, IMM_MUST },
+ { IV1SZ, LDST_CLASS_1_CCB | LDST_SRCDST_WORD_CLASS1_IV_SZ,
+ LENOF_4, IMM_MUST },
+ { ALTDS1, LDST_CLASS_1_CCB | LDST_SRCDST_WORD_ALTDS_CLASS1,
+ LENOF_448, IMM_MUST },
+ { PKASZ, LDST_CLASS_1_CCB | LDST_SRCDST_WORD_PKHA_A_SZ,
+ LENOF_4, IMM_MUST, },
+ { PKBSZ, LDST_CLASS_1_CCB | LDST_SRCDST_WORD_PKHA_B_SZ,
+ LENOF_4, IMM_MUST },
+ { PKNSZ, LDST_CLASS_1_CCB | LDST_SRCDST_WORD_PKHA_N_SZ,
+ LENOF_4, IMM_MUST },
+ { PKESZ, LDST_CLASS_1_CCB | LDST_SRCDST_WORD_PKHA_E_SZ,
+ LENOF_4, IMM_MUST },
+ { NFIFO, LDST_CLASS_IND_CCB | LDST_SRCDST_WORD_INFO_FIFO,
+ LENOF_48, IMM_MUST },
+ { IFIFO, LDST_SRCDST_BYTE_INFIFO, LENOF_18, IMM_MUST },
+ { OFIFO, LDST_SRCDST_BYTE_OUTFIFO, LENOF_18, IMM_MUST },
+ { MATH0, LDST_CLASS_DECO | LDST_SRCDST_WORD_DECO_MATH0,
+ LENOF_32, IMM_CAN },
+ { MATH1, LDST_CLASS_DECO | LDST_SRCDST_WORD_DECO_MATH1,
+ LENOF_24, IMM_CAN },
+ { MATH2, LDST_CLASS_DECO | LDST_SRCDST_WORD_DECO_MATH2,
+ LENOF_16, IMM_CAN },
+ { MATH3, LDST_CLASS_DECO | LDST_SRCDST_WORD_DECO_MATH3,
+ LENOF_8, IMM_CAN },
+ { CONTEXT1, LDST_CLASS_1_CCB | LDST_SRCDST_BYTE_CONTEXT,
+ LENOF_128, IMM_CAN },
+ { CONTEXT2, LDST_CLASS_2_CCB | LDST_SRCDST_BYTE_CONTEXT,
+ LENOF_128, IMM_CAN },
+ { KEY1, LDST_CLASS_1_CCB | LDST_SRCDST_BYTE_KEY,
+ LENOF_32, IMM_CAN },
+ { KEY2, LDST_CLASS_2_CCB | LDST_SRCDST_BYTE_KEY,
+ LENOF_32, IMM_CAN },
+ { DESCBUF, LDST_CLASS_DECO | LDST_SRCDST_WORD_DESCBUF,
+ LENOF_256, IMM_NO },
+ { DPID, LDST_CLASS_DECO | LDST_SRCDST_WORD_PID,
+ LENOF_448, IMM_MUST },
+/*32*/ { IDFNS, LDST_SRCDST_WORD_IFNSR, LENOF_18, IMM_MUST },
+ { ODFNS, LDST_SRCDST_WORD_OFNSR, LENOF_18, IMM_MUST },
+ { ALTSOURCE, LDST_SRCDST_BYTE_ALTSOURCE, LENOF_18, IMM_MUST },
+/*35*/ { NFIFO_SZL, LDST_SRCDST_WORD_INFO_FIFO_SZL, LENOF_48, IMM_MUST },
+ { NFIFO_SZM, LDST_SRCDST_WORD_INFO_FIFO_SZM, LENOF_03, IMM_MUST },
+ { NFIFO_L, LDST_SRCDST_WORD_INFO_FIFO_L, LENOF_48, IMM_MUST },
+ { NFIFO_M, LDST_SRCDST_WORD_INFO_FIFO_M, LENOF_03, IMM_MUST },
+ { SZL, LDST_SRCDST_WORD_SZL, LENOF_48, IMM_MUST },
+/*40*/ { SZM, LDST_SRCDST_WORD_SZM, LENOF_03, IMM_MUST }
+};
+
+/*
+ * Allowed LOAD destinations for each SEC Era.
+ * Values represent the number of entries from load_dst[] that are supported.
+ */
+static const unsigned int load_dst_sz[] = { 31, 34, 34, 40, 40, 40, 40, 40 };
+
+static inline int
+load_check_len_offset(int pos, uint32_t length, uint32_t offset)
+{
+ if ((load_dst[pos].dst == DCTRL) &&
+ ((length & ~load_len_mask_allowed[rta_sec_era]) ||
+ (offset & ~load_off_mask_allowed[rta_sec_era])))
+ goto err;
+
+ switch (load_dst[pos].len_off) {
+ case (LENOF_03):
+ if ((length > 3) || (offset))
+ goto err;
+ break;
+ case (LENOF_4):
+ if ((length != 4) || (offset != 0))
+ goto err;
+ break;
+ case (LENOF_48):
+ if (!(((length == 4) && (offset == 0)) ||
+ ((length == 8) && (offset == 0))))
+ goto err;
+ break;
+ case (LENOF_448):
+ if (!(((length == 4) && (offset == 0)) ||
+ ((length == 4) && (offset == 4)) ||
+ ((length == 8) && (offset == 0))))
+ goto err;
+ break;
+ case (LENOF_18):
+ if ((length < 1) || (length > 8) || (offset != 0))
+ goto err;
+ break;
+ case (LENOF_32):
+ if ((length > 32) || (offset > 32) || ((offset + length) > 32))
+ goto err;
+ break;
+ case (LENOF_24):
+ if ((length > 24) || (offset > 24) || ((offset + length) > 24))
+ goto err;
+ break;
+ case (LENOF_16):
+ if ((length > 16) || (offset > 16) || ((offset + length) > 16))
+ goto err;
+ break;
+ case (LENOF_8):
+ if ((length > 8) || (offset > 8) || ((offset + length) > 8))
+ goto err;
+ break;
+ case (LENOF_128):
+ if ((length > 128) || (offset > 128) ||
+ ((offset + length) > 128))
+ goto err;
+ break;
+ case (LENOF_256):
+ if ((length < 1) || (length > 256) || ((length + offset) > 256))
+ goto err;
+ break;
+ case (DSNM):
+ break;
+ default:
+ goto err;
+ }
+
+ return 0;
+err:
+ return -EINVAL;
+}
+
+static inline int
+rta_load(struct program *program, uint64_t src, uint64_t dst,
+ uint32_t offset, uint32_t length, uint32_t flags)
+{
+ uint32_t opcode = 0;
+ int pos = -1, ret = -EINVAL;
+ unsigned int start_pc = program->current_pc, i;
+
+ if (flags & SEQ)
+ opcode = CMD_SEQ_LOAD;
+ else
+ opcode = CMD_LOAD;
+
+ if ((length & 0xffffff00) || (offset & 0xffffff00)) {
+ pr_err("LOAD: Bad length/offset passed. Should be 8 bits\n");
+ goto err;
+ }
+
+ if (flags & SGF)
+ opcode |= LDST_SGF;
+ if (flags & VLF)
+ opcode |= LDST_VLF;
+
+ /* check load destination, length and offset and source type */
+ for (i = 0; i < load_dst_sz[rta_sec_era]; i++)
+ if (dst == load_dst[i].dst) {
+ pos = (int)i;
+ break;
+ }
+ if (-1 == pos) {
+ pr_err("LOAD: Invalid dst. SEC Program Line: %d\n",
+ program->current_pc);
+ goto err;
+ }
+
+ if (flags & IMMED) {
+ if (load_dst[pos].imm_src == IMM_NO) {
+ pr_err("LOAD: Invalid source type. SEC Program Line: %d\n",
+ program->current_pc);
+ goto err;
+ }
+ opcode |= LDST_IMM;
+ } else if (load_dst[pos].imm_src == IMM_MUST) {
+ pr_err("LOAD IMM: Invalid source type. SEC Program Line: %d\n",
+ program->current_pc);
+ goto err;
+ }
+
+ ret = load_check_len_offset(pos, length, offset);
+ if (ret < 0) {
+ pr_err("LOAD: Invalid length/offset. SEC Program Line: %d\n",
+ program->current_pc);
+ goto err;
+ }
+
+ opcode |= load_dst[pos].dst_opcode;
+
+ /* DESC BUFFER: length / offset values are specified in 4-byte words */
+ if (dst == DESCBUF) {
+ opcode |= (length >> 2);
+ opcode |= ((offset >> 2) << LDST_OFFSET_SHIFT);
+ } else {
+ opcode |= length;
+ opcode |= (offset << LDST_OFFSET_SHIFT);
+ }
+
+ __rta_out32(program, opcode);
+ program->current_instruction++;
+
+ /* DECO CONTROL: skip writing pointer of imm data */
+ if (dst == DCTRL)
+ return (int)start_pc;
+
+ /*
+ * For data copy, 3 possible ways to specify how to copy data:
+ * - IMMED & !COPY: copy data directly from src( max 8 bytes)
+ * - IMMED & COPY: copy data imm from the location specified by user
+ * - !IMMED and is not SEQ cmd: copy the address
+ */
+ if (flags & IMMED)
+ __rta_inline_data(program, src, flags & __COPY_MASK, length);
+ else if (!(flags & SEQ))
+ __rta_out64(program, program->ps, src);
+
+ return (int)start_pc;
+
+ err:
+ program->first_error_pc = start_pc;
+ program->current_instruction++;
+ return ret;
+}
+
+#endif /* __RTA_LOAD_CMD_H__*/
Code Review / deb_dpdk.git / blobdiff