diff options
Diffstat (limited to 'drivers/net/bnx2x_init.h')
-rw-r--r-- | drivers/net/bnx2x_init.h | 564 |
1 files changed, 564 insertions, 0 deletions
diff --git a/drivers/net/bnx2x_init.h b/drivers/net/bnx2x_init.h new file mode 100644 index 0000000..04f93bf --- /dev/null +++ b/drivers/net/bnx2x_init.h @@ -0,0 +1,564 @@ +/* bnx2x_init.h: Broadcom Everest network driver. + * + * Copyright (c) 2007 Broadcom Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation. + * + * Written by: Eliezer Tamir <eliezert@broadcom.com> + */ + +#ifndef BNX2X_INIT_H +#define BNX2X_INIT_H + +#define COMMON 0x1 +#define PORT0 0x2 +#define PORT1 0x4 + +#define INIT_EMULATION 0x1 +#define INIT_FPGA 0x2 +#define INIT_ASIC 0x4 +#define INIT_HARDWARE 0x7 + +#define STORM_INTMEM_SIZE (0x5800 / 4) +#define TSTORM_INTMEM_ADDR 0x1a0000 +#define CSTORM_INTMEM_ADDR 0x220000 +#define XSTORM_INTMEM_ADDR 0x2a0000 +#define USTORM_INTMEM_ADDR 0x320000 + + +/* Init operation types and structures */ + +#define OP_RD 0x1 /* read single register */ +#define OP_WR 0x2 /* write single register */ +#define OP_IW 0x3 /* write single register using mailbox */ +#define OP_SW 0x4 /* copy a string to the device */ +#define OP_SI 0x5 /* copy a string using mailbox */ +#define OP_ZR 0x6 /* clear memory */ +#define OP_ZP 0x7 /* unzip then copy with DMAE */ +#define OP_WB 0x8 /* copy a string using DMAE */ + +struct raw_op { + u32 op :8; + u32 offset :24; + u32 raw_data; +}; + +struct op_read { + u32 op :8; + u32 offset :24; + u32 pad; +}; + +struct op_write { + u32 op :8; + u32 offset :24; + u32 val; +}; + +struct op_string_write { + u32 op :8; + u32 offset :24; +#ifdef __LITTLE_ENDIAN + u16 data_off; + u16 data_len; +#else /* __BIG_ENDIAN */ + u16 data_len; + u16 data_off; +#endif +}; + +struct op_zero { + u32 op :8; + u32 offset :24; + u32 len; +}; + +union init_op { + struct op_read read; + struct op_write write; + struct op_string_write str_wr; + struct op_zero zero; + struct raw_op raw; +}; + +#include "bnx2x_init_values.h" + +static void bnx2x_reg_wr_ind(struct bnx2x *bp, u32 addr, u32 val); + +static void bnx2x_write_dmae(struct bnx2x *bp, dma_addr_t dma_addr, + u32 dst_addr, u32 len32); + +static int bnx2x_gunzip(struct bnx2x *bp, u8 *zbuf, int len); + +static void bnx2x_init_str_wr(struct bnx2x *bp, u32 addr, const u32 *data, + u32 len) +{ + int i; + + for (i = 0; i < len; i++) { + REG_WR(bp, addr + i*4, data[i]); + if (!(i % 10000)) { + touch_softlockup_watchdog(); + cpu_relax(); + } + } +} + +#define INIT_MEM_WR(reg, data, reg_off, len) \ + bnx2x_init_str_wr(bp, reg + reg_off*4, data, len) + +static void bnx2x_init_ind_wr(struct bnx2x *bp, u32 addr, const u32 *data, + u16 len) +{ + int i; + + for (i = 0; i < len; i++) { + REG_WR_IND(bp, addr + i*4, data[i]); + if (!(i % 10000)) { + touch_softlockup_watchdog(); + cpu_relax(); + } + } +} + +static void bnx2x_init_wr_wb(struct bnx2x *bp, u32 addr, const u32 *data, + u32 len, int gunzip) +{ + int offset = 0; + + if (gunzip) { + int rc; +#ifdef __BIG_ENDIAN + int i, size; + u32 *temp; + + temp = kmalloc(len, GFP_KERNEL); + size = (len / 4) + ((len % 4) ? 1 : 0); + for (i = 0; i < size; i++) + temp[i] = swab32(data[i]); + data = temp; +#endif + rc = bnx2x_gunzip(bp, (u8 *)data, len); + if (rc) { + DP(NETIF_MSG_HW, "gunzip failed ! rc %d\n", rc); + return; + } + len = bp->gunzip_outlen; +#ifdef __BIG_ENDIAN + kfree(temp); + for (i = 0; i < len; i++) + ((u32 *)bp->gunzip_buf)[i] = + swab32(((u32 *)bp->gunzip_buf)[i]); +#endif + } else { + if ((len * 4) > FW_BUF_SIZE) { + BNX2X_ERR("LARGE DMAE OPERATION ! len 0x%x\n", len*4); + return; + } + memcpy(bp->gunzip_buf, data, len * 4); + } + + while (len > DMAE_LEN32_MAX) { + bnx2x_write_dmae(bp, bp->gunzip_mapping + offset, + addr + offset, DMAE_LEN32_MAX); + offset += DMAE_LEN32_MAX * 4; + len -= DMAE_LEN32_MAX; + } + bnx2x_write_dmae(bp, bp->gunzip_mapping + offset, addr + offset, len); +} + +#define INIT_MEM_WB(reg, data, reg_off, len) \ + bnx2x_init_wr_wb(bp, reg + reg_off*4, data, len, 0) + +#define INIT_GUNZIP_DMAE(reg, data, reg_off, len) \ + bnx2x_init_wr_wb(bp, reg + reg_off*4, data, len, 1) + +static void bnx2x_init_fill(struct bnx2x *bp, u32 addr, int fill, u32 len) +{ + int offset = 0; + + if ((len * 4) > FW_BUF_SIZE) { + BNX2X_ERR("LARGE DMAE OPERATION ! len 0x%x\n", len * 4); + return; + } + memset(bp->gunzip_buf, fill, len * 4); + + while (len > DMAE_LEN32_MAX) { + bnx2x_write_dmae(bp, bp->gunzip_mapping + offset, + addr + offset, DMAE_LEN32_MAX); + offset += DMAE_LEN32_MAX * 4; + len -= DMAE_LEN32_MAX; + } + bnx2x_write_dmae(bp, bp->gunzip_mapping + offset, addr + offset, len); +} + +static void bnx2x_init_block(struct bnx2x *bp, u32 op_start, u32 op_end) +{ + int i; + union init_op *op; + u32 op_type, addr, len; + const u32 *data; + + for (i = op_start; i < op_end; i++) { + + op = (union init_op *)&(init_ops[i]); + + op_type = op->str_wr.op; + addr = op->str_wr.offset; + len = op->str_wr.data_len; + data = init_data + op->str_wr.data_off; + + switch (op_type) { + case OP_RD: + REG_RD(bp, addr); + break; + case OP_WR: + REG_WR(bp, addr, op->write.val); + break; + case OP_SW: + bnx2x_init_str_wr(bp, addr, data, len); + break; + case OP_WB: + bnx2x_init_wr_wb(bp, addr, data, len, 0); + break; + case OP_SI: + bnx2x_init_ind_wr(bp, addr, data, len); + break; + case OP_ZR: + bnx2x_init_fill(bp, addr, 0, op->zero.len); + break; + case OP_ZP: + bnx2x_init_wr_wb(bp, addr, data, len, 1); + break; + default: + BNX2X_ERR("BAD init operation!\n"); + } + } +} + + +/**************************************************************************** +* PXP +****************************************************************************/ +/* + * This code configures the PCI read/write arbiter + * which implements a wighted round robin + * between the virtual queues in the chip. + * + * The values were derived for each PCI max payload and max request size. + * since max payload and max request size are only known at run time, + * this is done as a separate init stage. + */ + +#define NUM_WR_Q 13 +#define NUM_RD_Q 29 +#define MAX_RD_ORD 3 +#define MAX_WR_ORD 2 + +/* configuration for one arbiter queue */ +struct arb_line { + int l; + int add; + int ubound; +}; + +/* derived configuration for each read queue for each max request size */ +static const struct arb_line read_arb_data[NUM_RD_Q][MAX_RD_ORD + 1] = { + {{8 , 64 , 25}, {16 , 64 , 25}, {32 , 64 , 25}, {64 , 64 , 41} }, + {{4 , 8 , 4}, {4 , 8 , 4}, {4 , 8 , 4}, {4 , 8 , 4} }, + {{4 , 3 , 3}, {4 , 3 , 3}, {4 , 3 , 3}, {4 , 3 , 3} }, + {{8 , 3 , 6}, {16 , 3 , 11}, {16 , 3 , 11}, {16 , 3 , 11} }, + {{8 , 64 , 25}, {16 , 64 , 25}, {32 , 64 , 25}, {64 , 64 , 41} }, + {{8 , 3 , 6}, {16 , 3 , 11}, {32 , 3 , 21}, {64 , 3 , 41} }, + {{8 , 3 , 6}, {16 , 3 , 11}, {32 , 3 , 21}, {64 , 3 , 41} }, + {{8 , 3 , 6}, {16 , 3 , 11}, {32 , 3 , 21}, {64 , 3 , 41} }, + {{8 , 3 , 6}, {16 , 3 , 11}, {32 , 3 , 21}, {64 , 3 , 41} }, + {{8 , 3 , 6}, {16 , 3 , 11}, {32 , 3 , 21}, {32 , 3 , 21} }, + {{8 , 3 , 6}, {16 , 3 , 11}, {32 , 3 , 21}, {32 , 3 , 21} }, + {{8 , 3 , 6}, {16 , 3 , 11}, {32 , 3 , 21}, {32 , 3 , 21} }, + {{8 , 3 , 6}, {16 , 3 , 11}, {32 , 3 , 21}, {32 , 3 , 21} }, + {{8 , 3 , 6}, {16 , 3 , 11}, {32 , 3 , 21}, {32 , 3 , 21} }, + {{8 , 3 , 6}, {16 , 3 , 11}, {32 , 3 , 21}, {32 , 3 , 21} }, + {{8 , 3 , 6}, {16 , 3 , 11}, {32 , 3 , 21}, {32 , 3 , 21} }, + {{8 , 3 , 6}, {16 , 3 , 11}, {32 , 3 , 21}, {32 , 3 , 21} }, + {{8 , 3 , 6}, {16 , 3 , 11}, {32 , 3 , 21}, {32 , 3 , 21} }, + {{8 , 3 , 6}, {16 , 3 , 11}, {32 , 3 , 21}, {32 , 3 , 21} }, + {{8 , 3 , 6}, {16 , 3 , 11}, {32 , 3 , 21}, {32 , 3 , 21} }, + {{8 , 3 , 6}, {16 , 3 , 11}, {32 , 3 , 21}, {32 , 3 , 21} }, + {{8 , 3 , 6}, {16 , 3 , 11}, {32 , 3 , 21}, {32 , 3 , 21} }, + {{8 , 3 , 6}, {16 , 3 , 11}, {32 , 3 , 21}, {32 , 3 , 21} }, + {{8 , 3 , 6}, {16 , 3 , 11}, {32 , 3 , 21}, {32 , 3 , 21} }, + {{8 , 3 , 6}, {16 , 3 , 11}, {32 , 3 , 21}, {32 , 3 , 21} }, + {{8 , 3 , 6}, {16 , 3 , 11}, {32 , 3 , 21}, {32 , 3 , 21} }, + {{8 , 3 , 6}, {16 , 3 , 11}, {32 , 3 , 21}, {32 , 3 , 21} }, + {{8 , 3 , 6}, {16 , 3 , 11}, {32 , 3 , 21}, {32 , 3 , 21} }, + {{8 , 64 , 25}, {16 , 64 , 41}, {32 , 64 , 81}, {64 , 64 , 120} } +}; + +/* derived configuration for each write queue for each max request size */ +static const struct arb_line write_arb_data[NUM_WR_Q][MAX_WR_ORD + 1] = { + {{4 , 6 , 3}, {4 , 6 , 3}, {4 , 6 , 3} }, + {{4 , 2 , 3}, {4 , 2 , 3}, {4 , 2 , 3} }, + {{8 , 2 , 6}, {16 , 2 , 11}, {16 , 2 , 11} }, + {{8 , 2 , 6}, {16 , 2 , 11}, {32 , 2 , 21} }, + {{8 , 2 , 6}, {16 , 2 , 11}, {32 , 2 , 21} }, + {{8 , 2 , 6}, {16 , 2 , 11}, {32 , 2 , 21} }, + {{8 , 64 , 25}, {16 , 64 , 25}, {32 , 64 , 25} }, + {{8 , 2 , 6}, {16 , 2 , 11}, {16 , 2 , 11} }, + {{8 , 2 , 6}, {16 , 2 , 11}, {16 , 2 , 11} }, + {{8 , 9 , 6}, {16 , 9 , 11}, {32 , 9 , 21} }, + {{8 , 47 , 19}, {16 , 47 , 19}, {32 , 47 , 21} }, + {{8 , 9 , 6}, {16 , 9 , 11}, {16 , 9 , 11} }, + {{8 , 64 , 25}, {16 , 64 , 41}, {32 , 64 , 81} } +}; + +/* register adresses for read queues */ +static const struct arb_line read_arb_addr[NUM_RD_Q-1] = { + {PXP2_REG_RQ_BW_RD_L0, PXP2_REG_RQ_BW_RD_ADD0, + PXP2_REG_RQ_BW_RD_UBOUND0}, + {PXP2_REG_PSWRQ_BW_L1, PXP2_REG_PSWRQ_BW_ADD1, + PXP2_REG_PSWRQ_BW_UB1}, + {PXP2_REG_PSWRQ_BW_L2, PXP2_REG_PSWRQ_BW_ADD2, + PXP2_REG_PSWRQ_BW_UB2}, + {PXP2_REG_PSWRQ_BW_L3, PXP2_REG_PSWRQ_BW_ADD3, + PXP2_REG_PSWRQ_BW_UB3}, + {PXP2_REG_RQ_BW_RD_L4, PXP2_REG_RQ_BW_RD_ADD4, + PXP2_REG_RQ_BW_RD_UBOUND4}, + {PXP2_REG_RQ_BW_RD_L5, PXP2_REG_RQ_BW_RD_ADD5, + PXP2_REG_RQ_BW_RD_UBOUND5}, + {PXP2_REG_PSWRQ_BW_L6, PXP2_REG_PSWRQ_BW_ADD6, + PXP2_REG_PSWRQ_BW_UB6}, + {PXP2_REG_PSWRQ_BW_L7, PXP2_REG_PSWRQ_BW_ADD7, + PXP2_REG_PSWRQ_BW_UB7}, + {PXP2_REG_PSWRQ_BW_L8, PXP2_REG_PSWRQ_BW_ADD8, + PXP2_REG_PSWRQ_BW_UB8}, + {PXP2_REG_PSWRQ_BW_L9, PXP2_REG_PSWRQ_BW_ADD9, + PXP2_REG_PSWRQ_BW_UB9}, + {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_RQ_BW_RD_L12, PXP2_REG_RQ_BW_RD_ADD12, + PXP2_REG_RQ_BW_RD_UBOUND12}, + {PXP2_REG_RQ_BW_RD_L13, PXP2_REG_RQ_BW_RD_ADD13, + PXP2_REG_RQ_BW_RD_UBOUND13}, + {PXP2_REG_RQ_BW_RD_L14, PXP2_REG_RQ_BW_RD_ADD14, + PXP2_REG_RQ_BW_RD_UBOUND14}, + {PXP2_REG_RQ_BW_RD_L15, PXP2_REG_RQ_BW_RD_ADD15, + PXP2_REG_RQ_BW_RD_UBOUND15}, + {PXP2_REG_RQ_BW_RD_L16, PXP2_REG_RQ_BW_RD_ADD16, + PXP2_REG_RQ_BW_RD_UBOUND16}, + {PXP2_REG_RQ_BW_RD_L17, PXP2_REG_RQ_BW_RD_ADD17, + PXP2_REG_RQ_BW_RD_UBOUND17}, + {PXP2_REG_RQ_BW_RD_L18, PXP2_REG_RQ_BW_RD_ADD18, + PXP2_REG_RQ_BW_RD_UBOUND18}, + {PXP2_REG_RQ_BW_RD_L19, PXP2_REG_RQ_BW_RD_ADD19, + PXP2_REG_RQ_BW_RD_UBOUND19}, + {PXP2_REG_RQ_BW_RD_L20, PXP2_REG_RQ_BW_RD_ADD20, + PXP2_REG_RQ_BW_RD_UBOUND20}, + {PXP2_REG_RQ_BW_RD_L22, PXP2_REG_RQ_BW_RD_ADD22, + PXP2_REG_RQ_BW_RD_UBOUND22}, + {PXP2_REG_RQ_BW_RD_L23, PXP2_REG_RQ_BW_RD_ADD23, + PXP2_REG_RQ_BW_RD_UBOUND23}, + {PXP2_REG_RQ_BW_RD_L24, PXP2_REG_RQ_BW_RD_ADD24, + PXP2_REG_RQ_BW_RD_UBOUND24}, + {PXP2_REG_RQ_BW_RD_L25, PXP2_REG_RQ_BW_RD_ADD25, + PXP2_REG_RQ_BW_RD_UBOUND25}, + {PXP2_REG_RQ_BW_RD_L26, PXP2_REG_RQ_BW_RD_ADD26, + PXP2_REG_RQ_BW_RD_UBOUND26}, + {PXP2_REG_RQ_BW_RD_L27, PXP2_REG_RQ_BW_RD_ADD27, + PXP2_REG_RQ_BW_RD_UBOUND27}, + {PXP2_REG_PSWRQ_BW_L28, PXP2_REG_PSWRQ_BW_ADD28, + PXP2_REG_PSWRQ_BW_UB28} +}; + +/* register adresses for wrtie queues */ +static const struct arb_line write_arb_addr[NUM_WR_Q-1] = { + {PXP2_REG_PSWRQ_BW_L1, PXP2_REG_PSWRQ_BW_ADD1, + PXP2_REG_PSWRQ_BW_UB1}, + {PXP2_REG_PSWRQ_BW_L2, PXP2_REG_PSWRQ_BW_ADD2, + PXP2_REG_PSWRQ_BW_UB2}, + {PXP2_REG_PSWRQ_BW_L3, PXP2_REG_PSWRQ_BW_ADD3, + PXP2_REG_PSWRQ_BW_UB3}, + {PXP2_REG_PSWRQ_BW_L6, PXP2_REG_PSWRQ_BW_ADD6, + PXP2_REG_PSWRQ_BW_UB6}, + {PXP2_REG_PSWRQ_BW_L7, PXP2_REG_PSWRQ_BW_ADD7, + PXP2_REG_PSWRQ_BW_UB7}, + {PXP2_REG_PSWRQ_BW_L8, PXP2_REG_PSWRQ_BW_ADD8, + PXP2_REG_PSWRQ_BW_UB8}, + {PXP2_REG_PSWRQ_BW_L9, PXP2_REG_PSWRQ_BW_ADD9, + PXP2_REG_PSWRQ_BW_UB9}, + {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", 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_MBS0 + 8, w_order); + REG_WR(bp, PXP2_REG_RQ_RD_MBS0, r_order); + REG_WR(bp, PXP2_REG_RQ_RD_MBS0 + 8, r_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 */ + |