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openwrt-xburst/target/linux/generic/files/crypto/ocf/pasemi/pasemi_fnu.h
nbd c5552ad039 rename target/linux/generic-2.6 to generic
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@21952 3c298f89-4303-0410-b956-a3cf2f4a3e73
2010-06-26 20:42:58 +00:00

411 lines
15 KiB
C

/*
* Copyright (C) 2007 PA Semi, Inc
*
* Driver for the PA Semi PWRficient DMA Crypto Engine, soft state and
* hardware register layouts.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef PASEMI_FNU_H
#define PASEMI_FNU_H
#include <linux/spinlock.h>
#define PASEMI_SESSION(sid) ((sid) & 0xffffffff)
#define PASEMI_SID(sesn) ((sesn) & 0xffffffff)
#define DPRINTF(a...) if (debug) { printk(DRV_NAME ": " a); }
/* Must be a power of two */
#define RX_RING_SIZE 512
#define TX_RING_SIZE 512
#define TX_DESC(ring, num) ((ring)->desc[2 * (num & (TX_RING_SIZE-1))])
#define TX_DESC_INFO(ring, num) ((ring)->desc_info[(num) & (TX_RING_SIZE-1)])
#define MAX_DESC_SIZE 8
#define PASEMI_INITIAL_SESSIONS 10
#define PASEMI_FNU_CHANNELS 8
/* DMA descriptor */
struct pasemi_desc {
u64 quad[2*MAX_DESC_SIZE];
int quad_cnt;
int size;
int postop;
};
/*
* Holds per descriptor data
*/
struct pasemi_desc_info {
int desc_size;
int desc_postop;
#define PASEMI_CHECK_SIG 0x1
struct cryptop *cf_crp;
};
/*
* Holds per channel data
*/
struct pasemi_fnu_txring {
volatile u64 *desc;
volatile struct
pasemi_desc_info *desc_info;
dma_addr_t dma;
struct timer_list crypto_timer;
spinlock_t fill_lock;
spinlock_t clean_lock;
unsigned int next_to_fill;
unsigned int next_to_clean;
u16 total_pktcnt;
int irq;
int sesn;
char irq_name[10];
};
/*
* Holds data specific to a single pasemi device.
*/
struct pasemi_softc {
softc_device_decl sc_cdev;
struct pci_dev *dma_pdev; /* device backpointer */
struct pci_dev *iob_pdev; /* device backpointer */
void __iomem *dma_regs;
void __iomem *iob_regs;
int base_irq;
int base_chan;
int32_t sc_cid; /* crypto tag */
int sc_nsessions;
struct pasemi_session **sc_sessions;
int sc_num_channels;/* number of crypto channels */
/* pointer to the array of txring datastructures, one txring per channel */
struct pasemi_fnu_txring *tx;
/*
* mutual exclusion for the channel scheduler
*/
spinlock_t sc_chnlock;
/* last channel used, for now use round-robin to allocate channels */
int sc_lastchn;
};
struct pasemi_session {
u64 civ[2];
u64 keysz;
u64 key[4];
u64 ccmd;
u64 hkey[4];
u64 hseq;
u64 giv[2];
u64 hiv[4];
int used;
dma_addr_t dma_addr;
int chan;
};
/* status register layout in IOB region, at 0xfd800000 */
struct pasdma_status {
u64 rx_sta[64];
u64 tx_sta[20];
};
#define ALG_IS_CIPHER(alg) ((alg == CRYPTO_DES_CBC) || \
(alg == CRYPTO_3DES_CBC) || \
(alg == CRYPTO_AES_CBC) || \
(alg == CRYPTO_ARC4) || \
(alg == CRYPTO_NULL_CBC))
#define ALG_IS_SIG(alg) ((alg == CRYPTO_MD5) || \
(alg == CRYPTO_MD5_HMAC) || \
(alg == CRYPTO_SHA1) || \
(alg == CRYPTO_SHA1_HMAC) || \
(alg == CRYPTO_NULL_HMAC))
enum {
PAS_DMA_COM_TXCMD = 0x100, /* Transmit Command Register */
PAS_DMA_COM_TXSTA = 0x104, /* Transmit Status Register */
PAS_DMA_COM_RXCMD = 0x108, /* Receive Command Register */
PAS_DMA_COM_RXSTA = 0x10c, /* Receive Status Register */
PAS_DMA_COM_CFG = 0x114, /* DMA Configuration Register */
};
/* All these registers live in the PCI configuration space for the DMA PCI
* device. Use the normal PCI config access functions for them.
*/
#define PAS_DMA_COM_CFG_FWF 0x18000000
#define PAS_DMA_COM_TXCMD_EN 0x00000001 /* enable */
#define PAS_DMA_COM_TXSTA_ACT 0x00000001 /* active */
#define PAS_DMA_COM_RXCMD_EN 0x00000001 /* enable */
#define PAS_DMA_COM_RXSTA_ACT 0x00000001 /* active */
#define _PAS_DMA_TXCHAN_STRIDE 0x20 /* Size per channel */
#define _PAS_DMA_TXCHAN_TCMDSTA 0x300 /* Command / Status */
#define _PAS_DMA_TXCHAN_CFG 0x304 /* Configuration */
#define _PAS_DMA_TXCHAN_DSCRBU 0x308 /* Descriptor BU Allocation */
#define _PAS_DMA_TXCHAN_INCR 0x310 /* Descriptor increment */
#define _PAS_DMA_TXCHAN_CNT 0x314 /* Descriptor count/offset */
#define _PAS_DMA_TXCHAN_BASEL 0x318 /* Descriptor ring base (low) */
#define _PAS_DMA_TXCHAN_BASEU 0x31c /* (high) */
#define PAS_DMA_TXCHAN_TCMDSTA(c) (0x300+(c)*_PAS_DMA_TXCHAN_STRIDE)
#define PAS_DMA_TXCHAN_TCMDSTA_EN 0x00000001 /* Enabled */
#define PAS_DMA_TXCHAN_TCMDSTA_ST 0x00000002 /* Stop interface */
#define PAS_DMA_TXCHAN_TCMDSTA_ACT 0x00010000 /* Active */
#define PAS_DMA_TXCHAN_CFG(c) (0x304+(c)*_PAS_DMA_TXCHAN_STRIDE)
#define PAS_DMA_TXCHAN_CFG_TY_FUNC 0x00000002 /* Type = interface */
#define PAS_DMA_TXCHAN_CFG_TY_IFACE 0x00000000 /* Type = interface */
#define PAS_DMA_TXCHAN_CFG_TATTR_M 0x0000003c
#define PAS_DMA_TXCHAN_CFG_TATTR_S 2
#define PAS_DMA_TXCHAN_CFG_TATTR(x) (((x) << PAS_DMA_TXCHAN_CFG_TATTR_S) & \
PAS_DMA_TXCHAN_CFG_TATTR_M)
#define PAS_DMA_TXCHAN_CFG_WT_M 0x000001c0
#define PAS_DMA_TXCHAN_CFG_WT_S 6
#define PAS_DMA_TXCHAN_CFG_WT(x) (((x) << PAS_DMA_TXCHAN_CFG_WT_S) & \
PAS_DMA_TXCHAN_CFG_WT_M)
#define PAS_DMA_TXCHAN_CFG_LPSQ_FAST 0x00000400
#define PAS_DMA_TXCHAN_CFG_LPDQ_FAST 0x00000800
#define PAS_DMA_TXCHAN_CFG_CF 0x00001000 /* Clean first line */
#define PAS_DMA_TXCHAN_CFG_CL 0x00002000 /* Clean last line */
#define PAS_DMA_TXCHAN_CFG_UP 0x00004000 /* update tx descr when sent */
#define PAS_DMA_TXCHAN_INCR(c) (0x310+(c)*_PAS_DMA_TXCHAN_STRIDE)
#define PAS_DMA_TXCHAN_BASEL(c) (0x318+(c)*_PAS_DMA_TXCHAN_STRIDE)
#define PAS_DMA_TXCHAN_BASEL_BRBL_M 0xffffffc0
#define PAS_DMA_TXCHAN_BASEL_BRBL_S 0
#define PAS_DMA_TXCHAN_BASEL_BRBL(x) (((x) << PAS_DMA_TXCHAN_BASEL_BRBL_S) & \
PAS_DMA_TXCHAN_BASEL_BRBL_M)
#define PAS_DMA_TXCHAN_BASEU(c) (0x31c+(c)*_PAS_DMA_TXCHAN_STRIDE)
#define PAS_DMA_TXCHAN_BASEU_BRBH_M 0x00000fff
#define PAS_DMA_TXCHAN_BASEU_BRBH_S 0
#define PAS_DMA_TXCHAN_BASEU_BRBH(x) (((x) << PAS_DMA_TXCHAN_BASEU_BRBH_S) & \
PAS_DMA_TXCHAN_BASEU_BRBH_M)
/* # of cache lines worth of buffer ring */
#define PAS_DMA_TXCHAN_BASEU_SIZ_M 0x3fff0000
#define PAS_DMA_TXCHAN_BASEU_SIZ_S 16 /* 0 = 16K */
#define PAS_DMA_TXCHAN_BASEU_SIZ(x) (((x) << PAS_DMA_TXCHAN_BASEU_SIZ_S) & \
PAS_DMA_TXCHAN_BASEU_SIZ_M)
#define PAS_STATUS_PCNT_M 0x000000000000ffffull
#define PAS_STATUS_PCNT_S 0
#define PAS_STATUS_DCNT_M 0x00000000ffff0000ull
#define PAS_STATUS_DCNT_S 16
#define PAS_STATUS_BPCNT_M 0x0000ffff00000000ull
#define PAS_STATUS_BPCNT_S 32
#define PAS_STATUS_CAUSE_M 0xf000000000000000ull
#define PAS_STATUS_TIMER 0x1000000000000000ull
#define PAS_STATUS_ERROR 0x2000000000000000ull
#define PAS_STATUS_SOFT 0x4000000000000000ull
#define PAS_STATUS_INT 0x8000000000000000ull
#define PAS_IOB_DMA_RXCH_CFG(i) (0x1100 + (i)*4)
#define PAS_IOB_DMA_RXCH_CFG_CNTTH_M 0x00000fff
#define PAS_IOB_DMA_RXCH_CFG_CNTTH_S 0
#define PAS_IOB_DMA_RXCH_CFG_CNTTH(x) (((x) << PAS_IOB_DMA_RXCH_CFG_CNTTH_S) & \
PAS_IOB_DMA_RXCH_CFG_CNTTH_M)
#define PAS_IOB_DMA_TXCH_CFG(i) (0x1200 + (i)*4)
#define PAS_IOB_DMA_TXCH_CFG_CNTTH_M 0x00000fff
#define PAS_IOB_DMA_TXCH_CFG_CNTTH_S 0
#define PAS_IOB_DMA_TXCH_CFG_CNTTH(x) (((x) << PAS_IOB_DMA_TXCH_CFG_CNTTH_S) & \
PAS_IOB_DMA_TXCH_CFG_CNTTH_M)
#define PAS_IOB_DMA_RXCH_STAT(i) (0x1300 + (i)*4)
#define PAS_IOB_DMA_RXCH_STAT_INTGEN 0x00001000
#define PAS_IOB_DMA_RXCH_STAT_CNTDEL_M 0x00000fff
#define PAS_IOB_DMA_RXCH_STAT_CNTDEL_S 0
#define PAS_IOB_DMA_RXCH_STAT_CNTDEL(x) (((x) << PAS_IOB_DMA_RXCH_STAT_CNTDEL_S) &\
PAS_IOB_DMA_RXCH_STAT_CNTDEL_M)
#define PAS_IOB_DMA_TXCH_STAT(i) (0x1400 + (i)*4)
#define PAS_IOB_DMA_TXCH_STAT_INTGEN 0x00001000
#define PAS_IOB_DMA_TXCH_STAT_CNTDEL_M 0x00000fff
#define PAS_IOB_DMA_TXCH_STAT_CNTDEL_S 0
#define PAS_IOB_DMA_TXCH_STAT_CNTDEL(x) (((x) << PAS_IOB_DMA_TXCH_STAT_CNTDEL_S) &\
PAS_IOB_DMA_TXCH_STAT_CNTDEL_M)
#define PAS_IOB_DMA_RXCH_RESET(i) (0x1500 + (i)*4)
#define PAS_IOB_DMA_RXCH_RESET_PCNT_M 0xffff0000
#define PAS_IOB_DMA_RXCH_RESET_PCNT_S 16
#define PAS_IOB_DMA_RXCH_RESET_PCNT(x) (((x) << PAS_IOB_DMA_RXCH_RESET_PCNT_S) & \
PAS_IOB_DMA_RXCH_RESET_PCNT_M)
#define PAS_IOB_DMA_RXCH_RESET_PCNTRST 0x00000020
#define PAS_IOB_DMA_RXCH_RESET_DCNTRST 0x00000010
#define PAS_IOB_DMA_RXCH_RESET_TINTC 0x00000008
#define PAS_IOB_DMA_RXCH_RESET_DINTC 0x00000004
#define PAS_IOB_DMA_RXCH_RESET_SINTC 0x00000002
#define PAS_IOB_DMA_RXCH_RESET_PINTC 0x00000001
#define PAS_IOB_DMA_TXCH_RESET(i) (0x1600 + (i)*4)
#define PAS_IOB_DMA_TXCH_RESET_PCNT_M 0xffff0000
#define PAS_IOB_DMA_TXCH_RESET_PCNT_S 16
#define PAS_IOB_DMA_TXCH_RESET_PCNT(x) (((x) << PAS_IOB_DMA_TXCH_RESET_PCNT_S) & \
PAS_IOB_DMA_TXCH_RESET_PCNT_M)
#define PAS_IOB_DMA_TXCH_RESET_PCNTRST 0x00000020
#define PAS_IOB_DMA_TXCH_RESET_DCNTRST 0x00000010
#define PAS_IOB_DMA_TXCH_RESET_TINTC 0x00000008
#define PAS_IOB_DMA_TXCH_RESET_DINTC 0x00000004
#define PAS_IOB_DMA_TXCH_RESET_SINTC 0x00000002
#define PAS_IOB_DMA_TXCH_RESET_PINTC 0x00000001
#define PAS_IOB_DMA_COM_TIMEOUTCFG 0x1700
#define PAS_IOB_DMA_COM_TIMEOUTCFG_TCNT_M 0x00ffffff
#define PAS_IOB_DMA_COM_TIMEOUTCFG_TCNT_S 0
#define PAS_IOB_DMA_COM_TIMEOUTCFG_TCNT(x) (((x) << PAS_IOB_DMA_COM_TIMEOUTCFG_TCNT_S) & \
PAS_IOB_DMA_COM_TIMEOUTCFG_TCNT_M)
/* Transmit descriptor fields */
#define XCT_MACTX_T 0x8000000000000000ull
#define XCT_MACTX_ST 0x4000000000000000ull
#define XCT_MACTX_NORES 0x0000000000000000ull
#define XCT_MACTX_8BRES 0x1000000000000000ull
#define XCT_MACTX_24BRES 0x2000000000000000ull
#define XCT_MACTX_40BRES 0x3000000000000000ull
#define XCT_MACTX_I 0x0800000000000000ull
#define XCT_MACTX_O 0x0400000000000000ull
#define XCT_MACTX_E 0x0200000000000000ull
#define XCT_MACTX_VLAN_M 0x0180000000000000ull
#define XCT_MACTX_VLAN_NOP 0x0000000000000000ull
#define XCT_MACTX_VLAN_REMOVE 0x0080000000000000ull
#define XCT_MACTX_VLAN_INSERT 0x0100000000000000ull
#define XCT_MACTX_VLAN_REPLACE 0x0180000000000000ull
#define XCT_MACTX_CRC_M 0x0060000000000000ull
#define XCT_MACTX_CRC_NOP 0x0000000000000000ull
#define XCT_MACTX_CRC_INSERT 0x0020000000000000ull
#define XCT_MACTX_CRC_PAD 0x0040000000000000ull
#define XCT_MACTX_CRC_REPLACE 0x0060000000000000ull
#define XCT_MACTX_SS 0x0010000000000000ull
#define XCT_MACTX_LLEN_M 0x00007fff00000000ull
#define XCT_MACTX_LLEN_S 32ull
#define XCT_MACTX_LLEN(x) ((((long)(x)) << XCT_MACTX_LLEN_S) & \
XCT_MACTX_LLEN_M)
#define XCT_MACTX_IPH_M 0x00000000f8000000ull
#define XCT_MACTX_IPH_S 27ull
#define XCT_MACTX_IPH(x) ((((long)(x)) << XCT_MACTX_IPH_S) & \
XCT_MACTX_IPH_M)
#define XCT_MACTX_IPO_M 0x0000000007c00000ull
#define XCT_MACTX_IPO_S 22ull
#define XCT_MACTX_IPO(x) ((((long)(x)) << XCT_MACTX_IPO_S) & \
XCT_MACTX_IPO_M)
#define XCT_MACTX_CSUM_M 0x0000000000000060ull
#define XCT_MACTX_CSUM_NOP 0x0000000000000000ull
#define XCT_MACTX_CSUM_TCP 0x0000000000000040ull
#define XCT_MACTX_CSUM_UDP 0x0000000000000060ull
#define XCT_MACTX_V6 0x0000000000000010ull
#define XCT_MACTX_C 0x0000000000000004ull
#define XCT_MACTX_AL2 0x0000000000000002ull
#define XCT_PTR_T 0x8000000000000000ull
#define XCT_PTR_LEN_M 0x7ffff00000000000ull
#define XCT_PTR_LEN_S 44
#define XCT_PTR_LEN(x) ((((long)(x)) << XCT_PTR_LEN_S) & \
XCT_PTR_LEN_M)
#define XCT_PTR_ADDR_M 0x00000fffffffffffull
#define XCT_PTR_ADDR_S 0
#define XCT_PTR_ADDR(x) ((((long)(x)) << XCT_PTR_ADDR_S) & \
XCT_PTR_ADDR_M)
/* Function descriptor fields */
#define XCT_FUN_T 0x8000000000000000ull
#define XCT_FUN_ST 0x4000000000000000ull
#define XCT_FUN_NORES 0x0000000000000000ull
#define XCT_FUN_8BRES 0x1000000000000000ull
#define XCT_FUN_24BRES 0x2000000000000000ull
#define XCT_FUN_40BRES 0x3000000000000000ull
#define XCT_FUN_I 0x0800000000000000ull
#define XCT_FUN_O 0x0400000000000000ull
#define XCT_FUN_E 0x0200000000000000ull
#define XCT_FUN_FUN_S 54
#define XCT_FUN_FUN_M 0x01c0000000000000ull
#define XCT_FUN_FUN(num) ((((long)(num)) << XCT_FUN_FUN_S) & \
XCT_FUN_FUN_M)
#define XCT_FUN_CRM_NOP 0x0000000000000000ull
#define XCT_FUN_CRM_SIG 0x0008000000000000ull
#define XCT_FUN_CRM_ENC 0x0010000000000000ull
#define XCT_FUN_CRM_DEC 0x0018000000000000ull
#define XCT_FUN_CRM_SIG_ENC 0x0020000000000000ull
#define XCT_FUN_CRM_ENC_SIG 0x0028000000000000ull
#define XCT_FUN_CRM_SIG_DEC 0x0030000000000000ull
#define XCT_FUN_CRM_DEC_SIG 0x0038000000000000ull
#define XCT_FUN_LLEN_M 0x0007ffff00000000ull
#define XCT_FUN_LLEN_S 32ULL
#define XCT_FUN_LLEN(x) ((((long)(x)) << XCT_FUN_LLEN_S) & \
XCT_FUN_LLEN_M)
#define XCT_FUN_SHL_M 0x00000000f8000000ull
#define XCT_FUN_SHL_S 27ull
#define XCT_FUN_SHL(x) ((((long)(x)) << XCT_FUN_SHL_S) & \
XCT_FUN_SHL_M)
#define XCT_FUN_CHL_M 0x0000000007c00000ull
#define XCT_FUN_CHL_S 22ull
#define XCT_FUN_CHL(x) ((((long)(x)) << XCT_FUN_CHL_S) & \
XCT_FUN_CHL_M)
#define XCT_FUN_HSZ_M 0x00000000003c0000ull
#define XCT_FUN_HSZ_S 18ull
#define XCT_FUN_HSZ(x) ((((long)(x)) << XCT_FUN_HSZ_S) & \
XCT_FUN_HSZ_M)
#define XCT_FUN_ALG_DES 0x0000000000000000ull
#define XCT_FUN_ALG_3DES 0x0000000000008000ull
#define XCT_FUN_ALG_AES 0x0000000000010000ull
#define XCT_FUN_ALG_ARC 0x0000000000018000ull
#define XCT_FUN_ALG_KASUMI 0x0000000000020000ull
#define XCT_FUN_BCM_ECB 0x0000000000000000ull
#define XCT_FUN_BCM_CBC 0x0000000000001000ull
#define XCT_FUN_BCM_CFB 0x0000000000002000ull
#define XCT_FUN_BCM_OFB 0x0000000000003000ull
#define XCT_FUN_BCM_CNT 0x0000000000003800ull
#define XCT_FUN_BCM_KAS_F8 0x0000000000002800ull
#define XCT_FUN_BCM_KAS_F9 0x0000000000001800ull
#define XCT_FUN_BCP_NO_PAD 0x0000000000000000ull
#define XCT_FUN_BCP_ZRO 0x0000000000000200ull
#define XCT_FUN_BCP_PL 0x0000000000000400ull
#define XCT_FUN_BCP_INCR 0x0000000000000600ull
#define XCT_FUN_SIG_MD5 (0ull << 4)
#define XCT_FUN_SIG_SHA1 (2ull << 4)
#define XCT_FUN_SIG_HMAC_MD5 (8ull << 4)
#define XCT_FUN_SIG_HMAC_SHA1 (10ull << 4)
#define XCT_FUN_A 0x0000000000000008ull
#define XCT_FUN_C 0x0000000000000004ull
#define XCT_FUN_AL2 0x0000000000000002ull
#define XCT_FUN_SE 0x0000000000000001ull
#define XCT_FUN_SRC_PTR(len, addr) (XCT_PTR_LEN(len) | XCT_PTR_ADDR(addr))
#define XCT_FUN_DST_PTR(len, addr) (XCT_FUN_SRC_PTR(len, addr) | \
0x8000000000000000ull)
#define XCT_CTRL_HDR_FUN_NUM_M 0x01c0000000000000ull
#define XCT_CTRL_HDR_FUN_NUM_S 54
#define XCT_CTRL_HDR_LEN_M 0x0007ffff00000000ull
#define XCT_CTRL_HDR_LEN_S 32
#define XCT_CTRL_HDR_REG_M 0x00000000000000ffull
#define XCT_CTRL_HDR_REG_S 0
#define XCT_CTRL_HDR(funcN,len,reg) (0x9400000000000000ull | \
((((long)(funcN)) << XCT_CTRL_HDR_FUN_NUM_S) \
& XCT_CTRL_HDR_FUN_NUM_M) | \
((((long)(len)) << \
XCT_CTRL_HDR_LEN_S) & XCT_CTRL_HDR_LEN_M) | \
((((long)(reg)) << \
XCT_CTRL_HDR_REG_S) & XCT_CTRL_HDR_REG_M))
/* Function config command options */
#define DMA_CALGO_DES 0x00
#define DMA_CALGO_3DES 0x01
#define DMA_CALGO_AES 0x02
#define DMA_CALGO_ARC 0x03
#define DMA_FN_CIV0 0x02
#define DMA_FN_CIV1 0x03
#define DMA_FN_HKEY0 0x0a
#define XCT_PTR_ADDR_LEN(ptr) ((ptr) & XCT_PTR_ADDR_M), \
(((ptr) & XCT_PTR_LEN_M) >> XCT_PTR_LEN_S)
#endif /* PASEMI_FNU_H */