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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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e8717a4726
Limit traffic through an internal queue to prevent overflow. Signed-off-by: Eliezer Tamir <eliezert@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
568 lines
17 KiB
C
568 lines
17 KiB
C
/* bnx2x_init.h: Broadcom Everest network driver.
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*
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* Copyright (c) 2007-2008 Broadcom Corporation
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation.
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*
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* Written by: Eliezer Tamir <eliezert@broadcom.com>
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*/
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#ifndef BNX2X_INIT_H
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#define BNX2X_INIT_H
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#define COMMON 0x1
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#define PORT0 0x2
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#define PORT1 0x4
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#define INIT_EMULATION 0x1
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#define INIT_FPGA 0x2
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#define INIT_ASIC 0x4
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#define INIT_HARDWARE 0x7
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#define STORM_INTMEM_SIZE (0x5800 / 4)
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#define TSTORM_INTMEM_ADDR 0x1a0000
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#define CSTORM_INTMEM_ADDR 0x220000
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#define XSTORM_INTMEM_ADDR 0x2a0000
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#define USTORM_INTMEM_ADDR 0x320000
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/* Init operation types and structures */
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#define OP_RD 0x1 /* read single register */
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#define OP_WR 0x2 /* write single register */
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#define OP_IW 0x3 /* write single register using mailbox */
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#define OP_SW 0x4 /* copy a string to the device */
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#define OP_SI 0x5 /* copy a string using mailbox */
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#define OP_ZR 0x6 /* clear memory */
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#define OP_ZP 0x7 /* unzip then copy with DMAE */
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#define OP_WB 0x8 /* copy a string using DMAE */
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struct raw_op {
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u32 op :8;
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u32 offset :24;
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u32 raw_data;
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};
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struct op_read {
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u32 op :8;
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u32 offset :24;
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u32 pad;
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};
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struct op_write {
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u32 op :8;
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u32 offset :24;
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u32 val;
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};
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struct op_string_write {
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u32 op :8;
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u32 offset :24;
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#ifdef __LITTLE_ENDIAN
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u16 data_off;
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u16 data_len;
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#else /* __BIG_ENDIAN */
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u16 data_len;
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u16 data_off;
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#endif
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};
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struct op_zero {
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u32 op :8;
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u32 offset :24;
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u32 len;
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};
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union init_op {
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struct op_read read;
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struct op_write write;
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struct op_string_write str_wr;
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struct op_zero zero;
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struct raw_op raw;
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};
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#include "bnx2x_init_values.h"
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static void bnx2x_reg_wr_ind(struct bnx2x *bp, u32 addr, u32 val);
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static void bnx2x_write_dmae(struct bnx2x *bp, dma_addr_t dma_addr,
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u32 dst_addr, u32 len32);
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static int bnx2x_gunzip(struct bnx2x *bp, u8 *zbuf, int len);
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static void bnx2x_init_str_wr(struct bnx2x *bp, u32 addr, const u32 *data,
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u32 len)
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{
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int i;
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for (i = 0; i < len; i++) {
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REG_WR(bp, addr + i*4, data[i]);
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if (!(i % 10000)) {
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touch_softlockup_watchdog();
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cpu_relax();
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}
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}
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}
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#define INIT_MEM_WR(reg, data, reg_off, len) \
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bnx2x_init_str_wr(bp, reg + reg_off*4, data, len)
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static void bnx2x_init_ind_wr(struct bnx2x *bp, u32 addr, const u32 *data,
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u16 len)
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{
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int i;
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for (i = 0; i < len; i++) {
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REG_WR_IND(bp, addr + i*4, data[i]);
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if (!(i % 10000)) {
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touch_softlockup_watchdog();
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cpu_relax();
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}
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}
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}
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static void bnx2x_init_wr_wb(struct bnx2x *bp, u32 addr, const u32 *data,
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u32 len, int gunzip)
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{
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int offset = 0;
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if (gunzip) {
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int rc;
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#ifdef __BIG_ENDIAN
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int i, size;
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u32 *temp;
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temp = kmalloc(len, GFP_KERNEL);
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size = (len / 4) + ((len % 4) ? 1 : 0);
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for (i = 0; i < size; i++)
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temp[i] = swab32(data[i]);
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data = temp;
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#endif
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rc = bnx2x_gunzip(bp, (u8 *)data, len);
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if (rc) {
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DP(NETIF_MSG_HW, "gunzip failed ! rc %d\n", rc);
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return;
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}
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len = bp->gunzip_outlen;
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#ifdef __BIG_ENDIAN
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kfree(temp);
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for (i = 0; i < len; i++)
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((u32 *)bp->gunzip_buf)[i] =
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swab32(((u32 *)bp->gunzip_buf)[i]);
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#endif
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} else {
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if ((len * 4) > FW_BUF_SIZE) {
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BNX2X_ERR("LARGE DMAE OPERATION ! len 0x%x\n", len*4);
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return;
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}
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memcpy(bp->gunzip_buf, data, len * 4);
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}
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while (len > DMAE_LEN32_MAX) {
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bnx2x_write_dmae(bp, bp->gunzip_mapping + offset,
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addr + offset, DMAE_LEN32_MAX);
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offset += DMAE_LEN32_MAX * 4;
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len -= DMAE_LEN32_MAX;
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}
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bnx2x_write_dmae(bp, bp->gunzip_mapping + offset, addr + offset, len);
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}
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#define INIT_MEM_WB(reg, data, reg_off, len) \
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bnx2x_init_wr_wb(bp, reg + reg_off*4, data, len, 0)
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#define INIT_GUNZIP_DMAE(reg, data, reg_off, len) \
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bnx2x_init_wr_wb(bp, reg + reg_off*4, data, len, 1)
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static void bnx2x_init_fill(struct bnx2x *bp, u32 addr, int fill, u32 len)
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{
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int offset = 0;
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if ((len * 4) > FW_BUF_SIZE) {
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BNX2X_ERR("LARGE DMAE OPERATION ! len 0x%x\n", len * 4);
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return;
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}
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memset(bp->gunzip_buf, fill, len * 4);
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while (len > DMAE_LEN32_MAX) {
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bnx2x_write_dmae(bp, bp->gunzip_mapping + offset,
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addr + offset, DMAE_LEN32_MAX);
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offset += DMAE_LEN32_MAX * 4;
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len -= DMAE_LEN32_MAX;
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}
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bnx2x_write_dmae(bp, bp->gunzip_mapping + offset, addr + offset, len);
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}
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static void bnx2x_init_block(struct bnx2x *bp, u32 op_start, u32 op_end)
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{
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int i;
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union init_op *op;
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u32 op_type, addr, len;
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const u32 *data;
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for (i = op_start; i < op_end; i++) {
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op = (union init_op *)&(init_ops[i]);
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op_type = op->str_wr.op;
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addr = op->str_wr.offset;
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len = op->str_wr.data_len;
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data = init_data + op->str_wr.data_off;
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switch (op_type) {
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case OP_RD:
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REG_RD(bp, addr);
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break;
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case OP_WR:
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REG_WR(bp, addr, op->write.val);
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break;
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case OP_SW:
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bnx2x_init_str_wr(bp, addr, data, len);
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break;
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case OP_WB:
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bnx2x_init_wr_wb(bp, addr, data, len, 0);
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break;
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case OP_SI:
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bnx2x_init_ind_wr(bp, addr, data, len);
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break;
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case OP_ZR:
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bnx2x_init_fill(bp, addr, 0, op->zero.len);
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break;
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case OP_ZP:
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bnx2x_init_wr_wb(bp, addr, data, len, 1);
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break;
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default:
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BNX2X_ERR("BAD init operation!\n");
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}
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}
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}
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/****************************************************************************
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* PXP
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****************************************************************************/
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/*
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* This code configures the PCI read/write arbiter
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* which implements a wighted round robin
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* between the virtual queues in the chip.
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*
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* The values were derived for each PCI max payload and max request size.
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* since max payload and max request size are only known at run time,
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* this is done as a separate init stage.
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*/
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#define NUM_WR_Q 13
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#define NUM_RD_Q 29
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#define MAX_RD_ORD 3
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#define MAX_WR_ORD 2
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/* configuration for one arbiter queue */
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struct arb_line {
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int l;
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int add;
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int ubound;
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};
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/* derived configuration for each read queue for each max request size */
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static const struct arb_line read_arb_data[NUM_RD_Q][MAX_RD_ORD + 1] = {
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{{8 , 64 , 25}, {16 , 64 , 25}, {32 , 64 , 25}, {64 , 64 , 41} },
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{{4 , 8 , 4}, {4 , 8 , 4}, {4 , 8 , 4}, {4 , 8 , 4} },
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{{4 , 3 , 3}, {4 , 3 , 3}, {4 , 3 , 3}, {4 , 3 , 3} },
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{{8 , 3 , 6}, {16 , 3 , 11}, {16 , 3 , 11}, {16 , 3 , 11} },
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{{8 , 64 , 25}, {16 , 64 , 25}, {32 , 64 , 25}, {64 , 64 , 41} },
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{{8 , 3 , 6}, {16 , 3 , 11}, {32 , 3 , 21}, {64 , 3 , 41} },
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{{8 , 3 , 6}, {16 , 3 , 11}, {32 , 3 , 21}, {64 , 3 , 41} },
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{{8 , 3 , 6}, {16 , 3 , 11}, {32 , 3 , 21}, {64 , 3 , 41} },
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{{8 , 3 , 6}, {16 , 3 , 11}, {32 , 3 , 21}, {64 , 3 , 41} },
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{{8 , 3 , 6}, {16 , 3 , 11}, {32 , 3 , 21}, {32 , 3 , 21} },
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{{8 , 3 , 6}, {16 , 3 , 11}, {32 , 3 , 21}, {32 , 3 , 21} },
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{{8 , 3 , 6}, {16 , 3 , 11}, {32 , 3 , 21}, {32 , 3 , 21} },
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{{8 , 3 , 6}, {16 , 3 , 11}, {32 , 3 , 21}, {32 , 3 , 21} },
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{{8 , 3 , 6}, {16 , 3 , 11}, {32 , 3 , 21}, {32 , 3 , 21} },
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{{8 , 3 , 6}, {16 , 3 , 11}, {32 , 3 , 21}, {32 , 3 , 21} },
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{{8 , 3 , 6}, {16 , 3 , 11}, {32 , 3 , 21}, {32 , 3 , 21} },
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{{8 , 3 , 6}, {16 , 3 , 11}, {32 , 3 , 21}, {32 , 3 , 21} },
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{{8 , 3 , 6}, {16 , 3 , 11}, {32 , 3 , 21}, {32 , 3 , 21} },
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{{8 , 3 , 6}, {16 , 3 , 11}, {32 , 3 , 21}, {32 , 3 , 21} },
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{{8 , 3 , 6}, {16 , 3 , 11}, {32 , 3 , 21}, {32 , 3 , 21} },
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{{8 , 3 , 6}, {16 , 3 , 11}, {32 , 3 , 21}, {32 , 3 , 21} },
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{{8 , 3 , 6}, {16 , 3 , 11}, {32 , 3 , 21}, {32 , 3 , 21} },
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{{8 , 3 , 6}, {16 , 3 , 11}, {32 , 3 , 21}, {32 , 3 , 21} },
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{{8 , 3 , 6}, {16 , 3 , 11}, {32 , 3 , 21}, {32 , 3 , 21} },
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{{8 , 3 , 6}, {16 , 3 , 11}, {32 , 3 , 21}, {32 , 3 , 21} },
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{{8 , 3 , 6}, {16 , 3 , 11}, {32 , 3 , 21}, {32 , 3 , 21} },
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{{8 , 3 , 6}, {16 , 3 , 11}, {32 , 3 , 21}, {32 , 3 , 21} },
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{{8 , 3 , 6}, {16 , 3 , 11}, {32 , 3 , 21}, {32 , 3 , 21} },
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{{8 , 64 , 25}, {16 , 64 , 41}, {32 , 64 , 81}, {64 , 64 , 120} }
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};
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/* derived configuration for each write queue for each max request size */
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static const struct arb_line write_arb_data[NUM_WR_Q][MAX_WR_ORD + 1] = {
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{{4 , 6 , 3}, {4 , 6 , 3}, {4 , 6 , 3} },
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{{4 , 2 , 3}, {4 , 2 , 3}, {4 , 2 , 3} },
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{{8 , 2 , 6}, {16 , 2 , 11}, {16 , 2 , 11} },
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{{8 , 2 , 6}, {16 , 2 , 11}, {32 , 2 , 21} },
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{{8 , 2 , 6}, {16 , 2 , 11}, {32 , 2 , 21} },
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{{8 , 2 , 6}, {16 , 2 , 11}, {32 , 2 , 21} },
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{{8 , 64 , 25}, {16 , 64 , 25}, {32 , 64 , 25} },
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{{8 , 2 , 6}, {16 , 2 , 11}, {16 , 2 , 11} },
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{{8 , 2 , 6}, {16 , 2 , 11}, {16 , 2 , 11} },
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{{8 , 9 , 6}, {16 , 9 , 11}, {32 , 9 , 21} },
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{{8 , 47 , 19}, {16 , 47 , 19}, {32 , 47 , 21} },
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{{8 , 9 , 6}, {16 , 9 , 11}, {16 , 9 , 11} },
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{{8 , 64 , 25}, {16 , 64 , 41}, {32 , 64 , 81} }
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};
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/* register adresses for read queues */
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static const struct arb_line read_arb_addr[NUM_RD_Q-1] = {
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{PXP2_REG_RQ_BW_RD_L0, PXP2_REG_RQ_BW_RD_ADD0,
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PXP2_REG_RQ_BW_RD_UBOUND0},
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{PXP2_REG_PSWRQ_BW_L1, PXP2_REG_PSWRQ_BW_ADD1,
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PXP2_REG_PSWRQ_BW_UB1},
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{PXP2_REG_PSWRQ_BW_L2, PXP2_REG_PSWRQ_BW_ADD2,
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PXP2_REG_PSWRQ_BW_UB2},
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{PXP2_REG_PSWRQ_BW_L3, PXP2_REG_PSWRQ_BW_ADD3,
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PXP2_REG_PSWRQ_BW_UB3},
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{PXP2_REG_RQ_BW_RD_L4, PXP2_REG_RQ_BW_RD_ADD4,
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PXP2_REG_RQ_BW_RD_UBOUND4},
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{PXP2_REG_RQ_BW_RD_L5, PXP2_REG_RQ_BW_RD_ADD5,
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PXP2_REG_RQ_BW_RD_UBOUND5},
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{PXP2_REG_PSWRQ_BW_L6, PXP2_REG_PSWRQ_BW_ADD6,
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PXP2_REG_PSWRQ_BW_UB6},
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{PXP2_REG_PSWRQ_BW_L7, PXP2_REG_PSWRQ_BW_ADD7,
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PXP2_REG_PSWRQ_BW_UB7},
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{PXP2_REG_PSWRQ_BW_L8, PXP2_REG_PSWRQ_BW_ADD8,
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PXP2_REG_PSWRQ_BW_UB8},
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{PXP2_REG_PSWRQ_BW_L9, PXP2_REG_PSWRQ_BW_ADD9,
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PXP2_REG_PSWRQ_BW_UB9},
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{PXP2_REG_PSWRQ_BW_L10, PXP2_REG_PSWRQ_BW_ADD10,
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PXP2_REG_PSWRQ_BW_UB10},
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{PXP2_REG_PSWRQ_BW_L11, PXP2_REG_PSWRQ_BW_ADD11,
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PXP2_REG_PSWRQ_BW_UB11},
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{PXP2_REG_RQ_BW_RD_L12, PXP2_REG_RQ_BW_RD_ADD12,
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PXP2_REG_RQ_BW_RD_UBOUND12},
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{PXP2_REG_RQ_BW_RD_L13, PXP2_REG_RQ_BW_RD_ADD13,
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PXP2_REG_RQ_BW_RD_UBOUND13},
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{PXP2_REG_RQ_BW_RD_L14, PXP2_REG_RQ_BW_RD_ADD14,
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PXP2_REG_RQ_BW_RD_UBOUND14},
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{PXP2_REG_RQ_BW_RD_L15, PXP2_REG_RQ_BW_RD_ADD15,
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PXP2_REG_RQ_BW_RD_UBOUND15},
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{PXP2_REG_RQ_BW_RD_L16, PXP2_REG_RQ_BW_RD_ADD16,
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PXP2_REG_RQ_BW_RD_UBOUND16},
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{PXP2_REG_RQ_BW_RD_L17, PXP2_REG_RQ_BW_RD_ADD17,
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PXP2_REG_RQ_BW_RD_UBOUND17},
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{PXP2_REG_RQ_BW_RD_L18, PXP2_REG_RQ_BW_RD_ADD18,
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PXP2_REG_RQ_BW_RD_UBOUND18},
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{PXP2_REG_RQ_BW_RD_L19, PXP2_REG_RQ_BW_RD_ADD19,
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PXP2_REG_RQ_BW_RD_UBOUND19},
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{PXP2_REG_RQ_BW_RD_L20, PXP2_REG_RQ_BW_RD_ADD20,
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PXP2_REG_RQ_BW_RD_UBOUND20},
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{PXP2_REG_RQ_BW_RD_L22, PXP2_REG_RQ_BW_RD_ADD22,
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PXP2_REG_RQ_BW_RD_UBOUND22},
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{PXP2_REG_RQ_BW_RD_L23, PXP2_REG_RQ_BW_RD_ADD23,
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PXP2_REG_RQ_BW_RD_UBOUND23},
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{PXP2_REG_RQ_BW_RD_L24, PXP2_REG_RQ_BW_RD_ADD24,
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PXP2_REG_RQ_BW_RD_UBOUND24},
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{PXP2_REG_RQ_BW_RD_L25, PXP2_REG_RQ_BW_RD_ADD25,
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PXP2_REG_RQ_BW_RD_UBOUND25},
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{PXP2_REG_RQ_BW_RD_L26, PXP2_REG_RQ_BW_RD_ADD26,
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PXP2_REG_RQ_BW_RD_UBOUND26},
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{PXP2_REG_RQ_BW_RD_L27, PXP2_REG_RQ_BW_RD_ADD27,
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PXP2_REG_RQ_BW_RD_UBOUND27},
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{PXP2_REG_PSWRQ_BW_L28, PXP2_REG_PSWRQ_BW_ADD28,
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PXP2_REG_PSWRQ_BW_UB28}
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};
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/* register adresses for wrtie queues */
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static const struct arb_line write_arb_addr[NUM_WR_Q-1] = {
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{PXP2_REG_PSWRQ_BW_L1, PXP2_REG_PSWRQ_BW_ADD1,
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PXP2_REG_PSWRQ_BW_UB1},
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{PXP2_REG_PSWRQ_BW_L2, PXP2_REG_PSWRQ_BW_ADD2,
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PXP2_REG_PSWRQ_BW_UB2},
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{PXP2_REG_PSWRQ_BW_L3, PXP2_REG_PSWRQ_BW_ADD3,
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PXP2_REG_PSWRQ_BW_UB3},
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{PXP2_REG_PSWRQ_BW_L6, PXP2_REG_PSWRQ_BW_ADD6,
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PXP2_REG_PSWRQ_BW_UB6},
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{PXP2_REG_PSWRQ_BW_L7, PXP2_REG_PSWRQ_BW_ADD7,
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PXP2_REG_PSWRQ_BW_UB7},
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{PXP2_REG_PSWRQ_BW_L8, PXP2_REG_PSWRQ_BW_ADD8,
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PXP2_REG_PSWRQ_BW_UB8},
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{PXP2_REG_PSWRQ_BW_L9, PXP2_REG_PSWRQ_BW_ADD9,
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PXP2_REG_PSWRQ_BW_UB9},
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{PXP2_REG_PSWRQ_BW_L10, PXP2_REG_PSWRQ_BW_ADD10,
|
|
PXP2_REG_PSWRQ_BW_UB10},
|
|
{PXP2_REG_PSWRQ_BW_L11, PXP2_REG_PSWRQ_BW_ADD11,
|
|
PXP2_REG_PSWRQ_BW_UB11},
|
|
{PXP2_REG_PSWRQ_BW_L28, PXP2_REG_PSWRQ_BW_ADD28,
|
|
PXP2_REG_PSWRQ_BW_UB28},
|
|
{PXP2_REG_RQ_BW_WR_L29, PXP2_REG_RQ_BW_WR_ADD29,
|
|
PXP2_REG_RQ_BW_WR_UBOUND29},
|
|
{PXP2_REG_RQ_BW_WR_L30, PXP2_REG_RQ_BW_WR_ADD30,
|
|
PXP2_REG_RQ_BW_WR_UBOUND30}
|
|
};
|
|
|
|
static void bnx2x_init_pxp(struct bnx2x *bp)
|
|
{
|
|
int r_order, w_order;
|
|
u32 val, i;
|
|
|
|
pci_read_config_word(bp->pdev,
|
|
bp->pcie_cap + PCI_EXP_DEVCTL, (u16 *)&val);
|
|
DP(NETIF_MSG_HW, "read 0x%x from devctl\n", (u16)val);
|
|
w_order = ((val & PCI_EXP_DEVCTL_PAYLOAD) >> 5);
|
|
r_order = ((val & PCI_EXP_DEVCTL_READRQ) >> 12);
|
|
|
|
if (r_order > MAX_RD_ORD) {
|
|
DP(NETIF_MSG_HW, "read order of %d order adjusted to %d\n",
|
|
r_order, MAX_RD_ORD);
|
|
r_order = MAX_RD_ORD;
|
|
}
|
|
if (w_order > MAX_WR_ORD) {
|
|
DP(NETIF_MSG_HW, "write order of %d order adjusted to %d\n",
|
|
w_order, MAX_WR_ORD);
|
|
w_order = MAX_WR_ORD;
|
|
}
|
|
DP(NETIF_MSG_HW, "read order %d write order %d\n", r_order, w_order);
|
|
|
|
for (i = 0; i < NUM_RD_Q-1; i++) {
|
|
REG_WR(bp, read_arb_addr[i].l, read_arb_data[i][r_order].l);
|
|
REG_WR(bp, read_arb_addr[i].add,
|
|
read_arb_data[i][r_order].add);
|
|
REG_WR(bp, read_arb_addr[i].ubound,
|
|
read_arb_data[i][r_order].ubound);
|
|
}
|
|
|
|
for (i = 0; i < NUM_WR_Q-1; i++) {
|
|
if ((write_arb_addr[i].l == PXP2_REG_RQ_BW_WR_L29) ||
|
|
(write_arb_addr[i].l == PXP2_REG_RQ_BW_WR_L30)) {
|
|
|
|
REG_WR(bp, write_arb_addr[i].l,
|
|
write_arb_data[i][w_order].l);
|
|
|
|
REG_WR(bp, write_arb_addr[i].add,
|
|
write_arb_data[i][w_order].add);
|
|
|
|
REG_WR(bp, write_arb_addr[i].ubound,
|
|
write_arb_data[i][w_order].ubound);
|
|
} else {
|
|
|
|
val = REG_RD(bp, write_arb_addr[i].l);
|
|
REG_WR(bp, write_arb_addr[i].l,
|
|
val | (write_arb_data[i][w_order].l << 10));
|
|
|
|
val = REG_RD(bp, write_arb_addr[i].add);
|
|
REG_WR(bp, write_arb_addr[i].add,
|
|
val | (write_arb_data[i][w_order].add << 10));
|
|
|
|
val = REG_RD(bp, write_arb_addr[i].ubound);
|
|
REG_WR(bp, write_arb_addr[i].ubound,
|
|
val | (write_arb_data[i][w_order].ubound << 7));
|
|
}
|
|
}
|
|
|
|
val = write_arb_data[NUM_WR_Q-1][w_order].add;
|
|
val += write_arb_data[NUM_WR_Q-1][w_order].ubound << 10;
|
|
val += write_arb_data[NUM_WR_Q-1][w_order].l << 17;
|
|
REG_WR(bp, PXP2_REG_PSWRQ_BW_RD, val);
|
|
|
|
val = read_arb_data[NUM_RD_Q-1][r_order].add;
|
|
val += read_arb_data[NUM_RD_Q-1][r_order].ubound << 10;
|
|
val += read_arb_data[NUM_RD_Q-1][r_order].l << 17;
|
|
REG_WR(bp, PXP2_REG_PSWRQ_BW_WR, val);
|
|
|
|
REG_WR(bp, PXP2_REG_RQ_WR_MBS0, w_order);
|
|
REG_WR(bp, PXP2_REG_RQ_WR_MBS1, w_order);
|
|
REG_WR(bp, PXP2_REG_RQ_RD_MBS0, r_order);
|
|
REG_WR(bp, PXP2_REG_RQ_RD_MBS1, r_order);
|
|
|
|
if (r_order == MAX_RD_ORD)
|
|
REG_WR(bp, PXP2_REG_RQ_PDR_LIMIT, 0xe00);
|
|
|
|
REG_WR(bp, PXP2_REG_WR_USDMDP_TH, (0x18 << w_order));
|
|
REG_WR(bp, PXP2_REG_WR_DMAE_TH, (128 << w_order)/16);
|
|
}
|
|
|
|
|
|
/****************************************************************************
|
|
* CDU
|
|
****************************************************************************/
|
|
|
|
#define CDU_REGION_NUMBER_XCM_AG 2
|
|
#define CDU_REGION_NUMBER_UCM_AG 4
|
|
|
|
/**
|
|
* String-to-compress [31:8] = CID (all 24 bits)
|
|
* String-to-compress [7:4] = Region
|
|
* String-to-compress [3:0] = Type
|
|
*/
|
|
#define CDU_VALID_DATA(_cid, _region, _type) \
|
|
(((_cid) << 8) | (((_region) & 0xf) << 4) | (((_type) & 0xf)))
|
|
#define CDU_CRC8(_cid, _region, _type) \
|
|
calc_crc8(CDU_VALID_DATA(_cid, _region, _type), 0xff)
|
|
#define CDU_RSRVD_VALUE_TYPE_A(_cid, _region, _type) \
|
|
(0x80 | (CDU_CRC8(_cid, _region, _type) & 0x7f))
|
|
#define CDU_RSRVD_VALUE_TYPE_B(_crc, _type) \
|
|
(0x80 | ((_type) & 0xf << 3) | (CDU_CRC8(_cid, _region, _type) & 0x7))
|
|
#define CDU_RSRVD_INVALIDATE_CONTEXT_VALUE(_val) ((_val) & ~0x80)
|
|
|
|
/*****************************************************************************
|
|
* Description:
|
|
* Calculates crc 8 on a word value: polynomial 0-1-2-8
|
|
* Code was translated from Verilog.
|
|
****************************************************************************/
|
|
static u8 calc_crc8(u32 data, u8 crc)
|
|
{
|
|
u8 D[32];
|
|
u8 NewCRC[8];
|
|
u8 C[8];
|
|
u8 crc_res;
|
|
u8 i;
|
|
|
|
/* split the data into 31 bits */
|
|
for (i = 0; i < 32; i++) {
|
|
D[i] = data & 1;
|
|
data = data >> 1;
|
|
}
|
|
|
|
/* split the crc into 8 bits */
|
|
for (i = 0; i < 8; i++) {
|
|
C[i] = crc & 1;
|
|
crc = crc >> 1;
|
|
}
|
|
|
|
NewCRC[0] = D[31] ^ D[30] ^ D[28] ^ D[23] ^ D[21] ^ D[19] ^ D[18] ^
|
|
D[16] ^ D[14] ^ D[12] ^ D[8] ^ D[7] ^ D[6] ^ D[0] ^ C[4] ^
|
|
C[6] ^ C[7];
|
|
NewCRC[1] = D[30] ^ D[29] ^ D[28] ^ D[24] ^ D[23] ^ D[22] ^ D[21] ^
|
|
D[20] ^ D[18] ^ D[17] ^ D[16] ^ D[15] ^ D[14] ^ D[13] ^
|
|
D[12] ^ D[9] ^ D[6] ^ D[1] ^ D[0] ^ C[0] ^ C[4] ^ C[5] ^ C[6];
|
|
NewCRC[2] = D[29] ^ D[28] ^ D[25] ^ D[24] ^ D[22] ^ D[17] ^ D[15] ^
|
|
D[13] ^ D[12] ^ D[10] ^ D[8] ^ D[6] ^ D[2] ^ D[1] ^ D[0] ^
|
|
C[0] ^ C[1] ^ C[4] ^ C[5];
|
|
NewCRC[3] = D[30] ^ D[29] ^ D[26] ^ D[25] ^ D[23] ^ D[18] ^ D[16] ^
|
|
D[14] ^ D[13] ^ D[11] ^ D[9] ^ D[7] ^ D[3] ^ D[2] ^ D[1] ^
|
|
C[1] ^ C[2] ^ C[5] ^ C[6];
|
|
NewCRC[4] = D[31] ^ D[30] ^ D[27] ^ D[26] ^ D[24] ^ D[19] ^ D[17] ^
|
|
D[15] ^ D[14] ^ D[12] ^ D[10] ^ D[8] ^ D[4] ^ D[3] ^ D[2] ^
|
|
C[0] ^ C[2] ^ C[3] ^ C[6] ^ C[7];
|
|
NewCRC[5] = D[31] ^ D[28] ^ D[27] ^ D[25] ^ D[20] ^ D[18] ^ D[16] ^
|
|
D[15] ^ D[13] ^ D[11] ^ D[9] ^ D[5] ^ D[4] ^ D[3] ^ C[1] ^
|
|
C[3] ^ C[4] ^ C[7];
|
|
NewCRC[6] = D[29] ^ D[28] ^ D[26] ^ D[21] ^ D[19] ^ D[17] ^ D[16] ^
|
|
D[14] ^ D[12] ^ D[10] ^ D[6] ^ D[5] ^ D[4] ^ C[2] ^ C[4] ^
|
|
C[5];
|
|
NewCRC[7] = D[30] ^ D[29] ^ D[27] ^ D[22] ^ D[20] ^ D[18] ^ D[17] ^
|
|
D[15] ^ D[13] ^ D[11] ^ D[7] ^ D[6] ^ D[5] ^ C[3] ^ C[5] ^
|
|
C[6];
|
|
|
|
crc_res = 0;
|
|
for (i = 0; i < 8; i++)
|
|
crc_res |= (NewCRC[i] << i);
|
|
|
|
return crc_res;
|
|
}
|
|
|
|
|
|
#endif /* BNX2X_INIT_H */
|
|
|