mirror of
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2025-09-04 20:19:47 +08:00
1335d6fd65
There is no need for an indirection before calling the dma alloc routines now that we store a struct device in struct fore200e. Also remove the pointless GFP_ATOMIC for the sbus case, and fix the up the error handling by removing the 0 dma_addr test - some iommus can return 0 as a perfectly valid bus address. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net>
975 lines
38 KiB
C
975 lines
38 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _FORE200E_H
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#define _FORE200E_H
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#ifdef __KERNEL__
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/* rx buffer sizes */
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#define SMALL_BUFFER_SIZE 384 /* size of small buffers (multiple of 48 (PCA) and 64 (SBA) bytes) */
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#define LARGE_BUFFER_SIZE 4032 /* size of large buffers (multiple of 48 (PCA) and 64 (SBA) bytes) */
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#define RBD_BLK_SIZE 32 /* nbr of supplied rx buffers per rbd */
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#define MAX_PDU_SIZE 65535 /* maximum PDU size supported by AALs */
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#define BUFFER_S1_SIZE SMALL_BUFFER_SIZE /* size of small buffers, scheme 1 */
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#define BUFFER_L1_SIZE LARGE_BUFFER_SIZE /* size of large buffers, scheme 1 */
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#define BUFFER_S2_SIZE SMALL_BUFFER_SIZE /* size of small buffers, scheme 2 */
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#define BUFFER_L2_SIZE LARGE_BUFFER_SIZE /* size of large buffers, scheme 2 */
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#define BUFFER_S1_NBR (RBD_BLK_SIZE * 6)
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#define BUFFER_L1_NBR (RBD_BLK_SIZE * 4)
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#define BUFFER_S2_NBR (RBD_BLK_SIZE * 6)
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#define BUFFER_L2_NBR (RBD_BLK_SIZE * 4)
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#define QUEUE_SIZE_CMD 16 /* command queue capacity */
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#define QUEUE_SIZE_RX 64 /* receive queue capacity */
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#define QUEUE_SIZE_TX 256 /* transmit queue capacity */
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#define QUEUE_SIZE_BS 32 /* buffer supply queue capacity */
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#define FORE200E_VPI_BITS 0
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#define FORE200E_VCI_BITS 10
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#define NBR_CONNECT (1 << (FORE200E_VPI_BITS + FORE200E_VCI_BITS)) /* number of connections */
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#define TSD_FIXED 2
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#define TSD_EXTENSION 0
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#define TSD_NBR (TSD_FIXED + TSD_EXTENSION)
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/* the cp starts putting a received PDU into one *small* buffer,
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then it uses a number of *large* buffers for the trailing data.
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we compute here the total number of receive segment descriptors
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required to hold the largest possible PDU */
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#define RSD_REQUIRED (((MAX_PDU_SIZE - SMALL_BUFFER_SIZE + LARGE_BUFFER_SIZE) / LARGE_BUFFER_SIZE) + 1)
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#define RSD_FIXED 3
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/* RSD_REQUIRED receive segment descriptors are enough to describe a max-sized PDU,
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but we have to keep the size of the receive PDU descriptor multiple of 32 bytes,
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so we add one extra RSD to RSD_EXTENSION
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(WARNING: THIS MAY CHANGE IF BUFFER SIZES ARE MODIFIED) */
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#define RSD_EXTENSION ((RSD_REQUIRED - RSD_FIXED) + 1)
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#define RSD_NBR (RSD_FIXED + RSD_EXTENSION)
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#define FORE200E_DEV(d) ((struct fore200e*)((d)->dev_data))
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#define FORE200E_VCC(d) ((struct fore200e_vcc*)((d)->dev_data))
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/* bitfields endian games */
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#if defined(__LITTLE_ENDIAN_BITFIELD)
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#define BITFIELD2(b1, b2) b1; b2;
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#define BITFIELD3(b1, b2, b3) b1; b2; b3;
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#define BITFIELD4(b1, b2, b3, b4) b1; b2; b3; b4;
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#define BITFIELD5(b1, b2, b3, b4, b5) b1; b2; b3; b4; b5;
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#define BITFIELD6(b1, b2, b3, b4, b5, b6) b1; b2; b3; b4; b5; b6;
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#elif defined(__BIG_ENDIAN_BITFIELD)
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#define BITFIELD2(b1, b2) b2; b1;
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#define BITFIELD3(b1, b2, b3) b3; b2; b1;
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#define BITFIELD4(b1, b2, b3, b4) b4; b3; b2; b1;
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#define BITFIELD5(b1, b2, b3, b4, b5) b5; b4; b3; b2; b1;
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#define BITFIELD6(b1, b2, b3, b4, b5, b6) b6; b5; b4; b3; b2; b1;
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#else
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#error unknown bitfield endianess
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#endif
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/* ATM cell header (minus HEC byte) */
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typedef struct atm_header {
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BITFIELD5(
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u32 clp : 1, /* cell loss priority */
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u32 plt : 3, /* payload type */
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u32 vci : 16, /* virtual channel identifier */
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u32 vpi : 8, /* virtual path identifier */
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u32 gfc : 4 /* generic flow control */
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)
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} atm_header_t;
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/* ATM adaptation layer id */
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typedef enum fore200e_aal {
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FORE200E_AAL0 = 0,
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FORE200E_AAL34 = 4,
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FORE200E_AAL5 = 5,
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} fore200e_aal_t;
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/* transmit PDU descriptor specification */
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typedef struct tpd_spec {
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BITFIELD4(
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u32 length : 16, /* total PDU length */
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u32 nseg : 8, /* number of transmit segments */
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enum fore200e_aal aal : 4, /* adaptation layer */
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u32 intr : 4 /* interrupt requested */
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)
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} tpd_spec_t;
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/* transmit PDU rate control */
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typedef struct tpd_rate
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{
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BITFIELD2(
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u32 idle_cells : 16, /* number of idle cells to insert */
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u32 data_cells : 16 /* number of data cells to transmit */
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)
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} tpd_rate_t;
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/* transmit segment descriptor */
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typedef struct tsd {
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u32 buffer; /* transmit buffer DMA address */
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u32 length; /* number of bytes in buffer */
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} tsd_t;
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/* transmit PDU descriptor */
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typedef struct tpd {
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struct atm_header atm_header; /* ATM header minus HEC byte */
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struct tpd_spec spec; /* tpd specification */
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struct tpd_rate rate; /* tpd rate control */
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u32 pad; /* reserved */
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struct tsd tsd[ TSD_NBR ]; /* transmit segment descriptors */
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} tpd_t;
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/* receive segment descriptor */
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typedef struct rsd {
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u32 handle; /* host supplied receive buffer handle */
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u32 length; /* number of bytes in buffer */
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} rsd_t;
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/* receive PDU descriptor */
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typedef struct rpd {
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struct atm_header atm_header; /* ATM header minus HEC byte */
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u32 nseg; /* number of receive segments */
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struct rsd rsd[ RSD_NBR ]; /* receive segment descriptors */
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} rpd_t;
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/* buffer scheme */
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typedef enum buffer_scheme {
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BUFFER_SCHEME_ONE,
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BUFFER_SCHEME_TWO,
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BUFFER_SCHEME_NBR /* always last */
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} buffer_scheme_t;
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/* buffer magnitude */
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typedef enum buffer_magn {
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BUFFER_MAGN_SMALL,
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BUFFER_MAGN_LARGE,
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BUFFER_MAGN_NBR /* always last */
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} buffer_magn_t;
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/* receive buffer descriptor */
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typedef struct rbd {
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u32 handle; /* host supplied handle */
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u32 buffer_haddr; /* host DMA address of host buffer */
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} rbd_t;
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/* receive buffer descriptor block */
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typedef struct rbd_block {
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struct rbd rbd[ RBD_BLK_SIZE ]; /* receive buffer descriptor */
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} rbd_block_t;
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/* tpd DMA address */
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typedef struct tpd_haddr {
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BITFIELD3(
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u32 size : 4, /* tpd size expressed in 32 byte blocks */
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u32 pad : 1, /* reserved */
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u32 haddr : 27 /* tpd DMA addr aligned on 32 byte boundary */
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)
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} tpd_haddr_t;
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#define TPD_HADDR_SHIFT 5 /* addr aligned on 32 byte boundary */
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/* cp resident transmit queue entry */
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typedef struct cp_txq_entry {
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struct tpd_haddr tpd_haddr; /* host DMA address of tpd */
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u32 status_haddr; /* host DMA address of completion status */
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} cp_txq_entry_t;
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/* cp resident receive queue entry */
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typedef struct cp_rxq_entry {
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u32 rpd_haddr; /* host DMA address of rpd */
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u32 status_haddr; /* host DMA address of completion status */
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} cp_rxq_entry_t;
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/* cp resident buffer supply queue entry */
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typedef struct cp_bsq_entry {
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u32 rbd_block_haddr; /* host DMA address of rbd block */
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u32 status_haddr; /* host DMA address of completion status */
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} cp_bsq_entry_t;
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/* completion status */
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typedef volatile enum status {
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STATUS_PENDING = (1<<0), /* initial status (written by host) */
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STATUS_COMPLETE = (1<<1), /* completion status (written by cp) */
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STATUS_FREE = (1<<2), /* initial status (written by host) */
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STATUS_ERROR = (1<<3) /* completion status (written by cp) */
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} status_t;
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/* cp operation code */
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typedef enum opcode {
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OPCODE_INITIALIZE = 1, /* initialize board */
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OPCODE_ACTIVATE_VCIN, /* activate incoming VCI */
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OPCODE_ACTIVATE_VCOUT, /* activate outgoing VCI */
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OPCODE_DEACTIVATE_VCIN, /* deactivate incoming VCI */
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OPCODE_DEACTIVATE_VCOUT, /* deactivate incoing VCI */
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OPCODE_GET_STATS, /* get board statistics */
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OPCODE_SET_OC3, /* set OC-3 registers */
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OPCODE_GET_OC3, /* get OC-3 registers */
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OPCODE_RESET_STATS, /* reset board statistics */
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OPCODE_GET_PROM, /* get expansion PROM data (PCI specific) */
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OPCODE_SET_VPI_BITS, /* set x bits of those decoded by the
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firmware to be low order bits from
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the VPI field of the ATM cell header */
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OPCODE_REQUEST_INTR = (1<<7) /* request interrupt */
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} opcode_t;
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/* virtual path / virtual channel identifiers */
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typedef struct vpvc {
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BITFIELD3(
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u32 vci : 16, /* virtual channel identifier */
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u32 vpi : 8, /* virtual path identifier */
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u32 pad : 8 /* reserved */
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)
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} vpvc_t;
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/* activate VC command opcode */
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typedef struct activate_opcode {
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BITFIELD4(
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enum opcode opcode : 8, /* cp opcode */
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enum fore200e_aal aal : 8, /* adaptation layer */
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enum buffer_scheme scheme : 8, /* buffer scheme */
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u32 pad : 8 /* reserved */
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)
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} activate_opcode_t;
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/* activate VC command block */
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typedef struct activate_block {
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struct activate_opcode opcode; /* activate VC command opcode */
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struct vpvc vpvc; /* VPI/VCI */
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u32 mtu; /* for AAL0 only */
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} activate_block_t;
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/* deactivate VC command opcode */
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typedef struct deactivate_opcode {
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BITFIELD2(
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enum opcode opcode : 8, /* cp opcode */
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u32 pad : 24 /* reserved */
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)
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} deactivate_opcode_t;
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/* deactivate VC command block */
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typedef struct deactivate_block {
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struct deactivate_opcode opcode; /* deactivate VC command opcode */
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struct vpvc vpvc; /* VPI/VCI */
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} deactivate_block_t;
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/* OC-3 registers */
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typedef struct oc3_regs {
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u32 reg[ 128 ]; /* see the PMC Sierra PC5346 S/UNI-155-Lite
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Saturn User Network Interface documentation
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for a description of the OC-3 chip registers */
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} oc3_regs_t;
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/* set/get OC-3 regs command opcode */
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typedef struct oc3_opcode {
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BITFIELD4(
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enum opcode opcode : 8, /* cp opcode */
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u32 reg : 8, /* register index */
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u32 value : 8, /* register value */
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u32 mask : 8 /* register mask that specifies which
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bits of the register value field
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are significant */
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)
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} oc3_opcode_t;
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/* set/get OC-3 regs command block */
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typedef struct oc3_block {
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struct oc3_opcode opcode; /* set/get OC-3 regs command opcode */
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u32 regs_haddr; /* host DMA address of OC-3 regs buffer */
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} oc3_block_t;
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/* physical encoding statistics */
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typedef struct stats_phy {
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__be32 crc_header_errors; /* cells received with bad header CRC */
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__be32 framing_errors; /* cells received with bad framing */
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__be32 pad[ 2 ]; /* i960 padding */
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} stats_phy_t;
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/* OC-3 statistics */
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typedef struct stats_oc3 {
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__be32 section_bip8_errors; /* section 8 bit interleaved parity */
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__be32 path_bip8_errors; /* path 8 bit interleaved parity */
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__be32 line_bip24_errors; /* line 24 bit interleaved parity */
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__be32 line_febe_errors; /* line far end block errors */
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__be32 path_febe_errors; /* path far end block errors */
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__be32 corr_hcs_errors; /* correctable header check sequence */
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__be32 ucorr_hcs_errors; /* uncorrectable header check sequence */
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__be32 pad[ 1 ]; /* i960 padding */
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} stats_oc3_t;
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/* ATM statistics */
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typedef struct stats_atm {
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__be32 cells_transmitted; /* cells transmitted */
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__be32 cells_received; /* cells received */
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__be32 vpi_bad_range; /* cell drops: VPI out of range */
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__be32 vpi_no_conn; /* cell drops: no connection for VPI */
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__be32 vci_bad_range; /* cell drops: VCI out of range */
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__be32 vci_no_conn; /* cell drops: no connection for VCI */
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__be32 pad[ 2 ]; /* i960 padding */
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} stats_atm_t;
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/* AAL0 statistics */
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typedef struct stats_aal0 {
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__be32 cells_transmitted; /* cells transmitted */
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__be32 cells_received; /* cells received */
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__be32 cells_dropped; /* cells dropped */
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__be32 pad[ 1 ]; /* i960 padding */
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} stats_aal0_t;
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/* AAL3/4 statistics */
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typedef struct stats_aal34 {
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__be32 cells_transmitted; /* cells transmitted from segmented PDUs */
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__be32 cells_received; /* cells reassembled into PDUs */
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__be32 cells_crc_errors; /* payload CRC error count */
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__be32 cells_protocol_errors; /* SAR or CS layer protocol errors */
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__be32 cells_dropped; /* cells dropped: partial reassembly */
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__be32 cspdus_transmitted; /* CS PDUs transmitted */
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__be32 cspdus_received; /* CS PDUs received */
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__be32 cspdus_protocol_errors; /* CS layer protocol errors */
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__be32 cspdus_dropped; /* reassembled PDUs drop'd (in cells) */
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__be32 pad[ 3 ]; /* i960 padding */
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} stats_aal34_t;
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/* AAL5 statistics */
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typedef struct stats_aal5 {
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__be32 cells_transmitted; /* cells transmitted from segmented SDUs */
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__be32 cells_received; /* cells reassembled into SDUs */
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__be32 cells_dropped; /* reassembled PDUs dropped (in cells) */
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__be32 congestion_experienced; /* CRC error and length wrong */
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__be32 cspdus_transmitted; /* CS PDUs transmitted */
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__be32 cspdus_received; /* CS PDUs received */
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__be32 cspdus_crc_errors; /* CS PDUs CRC errors */
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__be32 cspdus_protocol_errors; /* CS layer protocol errors */
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__be32 cspdus_dropped; /* reassembled PDUs dropped */
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__be32 pad[ 3 ]; /* i960 padding */
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} stats_aal5_t;
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/* auxiliary statistics */
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typedef struct stats_aux {
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__be32 small_b1_failed; /* receive BD allocation failures */
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__be32 large_b1_failed; /* receive BD allocation failures */
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__be32 small_b2_failed; /* receive BD allocation failures */
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__be32 large_b2_failed; /* receive BD allocation failures */
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__be32 rpd_alloc_failed; /* receive PDU allocation failures */
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__be32 receive_carrier; /* no carrier = 0, carrier = 1 */
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__be32 pad[ 2 ]; /* i960 padding */
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} stats_aux_t;
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/* whole statistics buffer */
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typedef struct stats {
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struct stats_phy phy; /* physical encoding statistics */
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struct stats_oc3 oc3; /* OC-3 statistics */
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struct stats_atm atm; /* ATM statistics */
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struct stats_aal0 aal0; /* AAL0 statistics */
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struct stats_aal34 aal34; /* AAL3/4 statistics */
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struct stats_aal5 aal5; /* AAL5 statistics */
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struct stats_aux aux; /* auxiliary statistics */
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} stats_t;
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/* get statistics command opcode */
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typedef struct stats_opcode {
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BITFIELD2(
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enum opcode opcode : 8, /* cp opcode */
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u32 pad : 24 /* reserved */
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)
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} stats_opcode_t;
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/* get statistics command block */
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typedef struct stats_block {
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struct stats_opcode opcode; /* get statistics command opcode */
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u32 stats_haddr; /* host DMA address of stats buffer */
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} stats_block_t;
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/* expansion PROM data (PCI specific) */
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typedef struct prom_data {
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u32 hw_revision; /* hardware revision */
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u32 serial_number; /* board serial number */
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u8 mac_addr[ 8 ]; /* board MAC address */
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} prom_data_t;
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/* get expansion PROM data command opcode */
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typedef struct prom_opcode {
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BITFIELD2(
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enum opcode opcode : 8, /* cp opcode */
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u32 pad : 24 /* reserved */
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)
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} prom_opcode_t;
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/* get expansion PROM data command block */
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typedef struct prom_block {
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struct prom_opcode opcode; /* get PROM data command opcode */
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u32 prom_haddr; /* host DMA address of PROM buffer */
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} prom_block_t;
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/* cp command */
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typedef union cmd {
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enum opcode opcode; /* operation code */
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struct activate_block activate_block; /* activate VC */
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struct deactivate_block deactivate_block; /* deactivate VC */
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struct stats_block stats_block; /* get statistics */
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struct prom_block prom_block; /* get expansion PROM data */
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struct oc3_block oc3_block; /* get/set OC-3 registers */
|
|
u32 pad[ 4 ]; /* i960 padding */
|
|
} cmd_t;
|
|
|
|
|
|
/* cp resident command queue */
|
|
|
|
typedef struct cp_cmdq_entry {
|
|
union cmd cmd; /* command */
|
|
u32 status_haddr; /* host DMA address of completion status */
|
|
u32 pad[ 3 ]; /* i960 padding */
|
|
} cp_cmdq_entry_t;
|
|
|
|
|
|
/* host resident transmit queue entry */
|
|
|
|
typedef struct host_txq_entry {
|
|
struct cp_txq_entry __iomem *cp_entry; /* addr of cp resident tx queue entry */
|
|
enum status* status; /* addr of host resident status */
|
|
struct tpd* tpd; /* addr of transmit PDU descriptor */
|
|
u32 tpd_dma; /* DMA address of tpd */
|
|
struct sk_buff* skb; /* related skb */
|
|
void* data; /* copy of misaligned data */
|
|
unsigned long incarn; /* vc_map incarnation when submitted for tx */
|
|
struct fore200e_vc_map* vc_map;
|
|
|
|
} host_txq_entry_t;
|
|
|
|
|
|
/* host resident receive queue entry */
|
|
|
|
typedef struct host_rxq_entry {
|
|
struct cp_rxq_entry __iomem *cp_entry; /* addr of cp resident rx queue entry */
|
|
enum status* status; /* addr of host resident status */
|
|
struct rpd* rpd; /* addr of receive PDU descriptor */
|
|
u32 rpd_dma; /* DMA address of rpd */
|
|
} host_rxq_entry_t;
|
|
|
|
|
|
/* host resident buffer supply queue entry */
|
|
|
|
typedef struct host_bsq_entry {
|
|
struct cp_bsq_entry __iomem *cp_entry; /* addr of cp resident buffer supply queue entry */
|
|
enum status* status; /* addr of host resident status */
|
|
struct rbd_block* rbd_block; /* addr of receive buffer descriptor block */
|
|
u32 rbd_block_dma; /* DMA address od rdb */
|
|
} host_bsq_entry_t;
|
|
|
|
|
|
/* host resident command queue entry */
|
|
|
|
typedef struct host_cmdq_entry {
|
|
struct cp_cmdq_entry __iomem *cp_entry; /* addr of cp resident cmd queue entry */
|
|
enum status *status; /* addr of host resident status */
|
|
} host_cmdq_entry_t;
|
|
|
|
|
|
/* chunk of memory */
|
|
|
|
typedef struct chunk {
|
|
void* alloc_addr; /* base address of allocated chunk */
|
|
void* align_addr; /* base address of aligned chunk */
|
|
dma_addr_t dma_addr; /* DMA address of aligned chunk */
|
|
int direction; /* direction of DMA mapping */
|
|
u32 alloc_size; /* length of allocated chunk */
|
|
u32 align_size; /* length of aligned chunk */
|
|
} chunk_t;
|
|
|
|
#define dma_size align_size /* DMA useable size */
|
|
|
|
|
|
/* host resident receive buffer */
|
|
|
|
typedef struct buffer {
|
|
struct buffer* next; /* next receive buffer */
|
|
enum buffer_scheme scheme; /* buffer scheme */
|
|
enum buffer_magn magn; /* buffer magnitude */
|
|
struct chunk data; /* data buffer */
|
|
#ifdef FORE200E_BSQ_DEBUG
|
|
unsigned long index; /* buffer # in queue */
|
|
int supplied; /* 'buffer supplied' flag */
|
|
#endif
|
|
} buffer_t;
|
|
|
|
|
|
#if (BITS_PER_LONG == 32)
|
|
#define FORE200E_BUF2HDL(buffer) ((u32)(buffer))
|
|
#define FORE200E_HDL2BUF(handle) ((struct buffer*)(handle))
|
|
#else /* deal with 64 bit pointers */
|
|
#define FORE200E_BUF2HDL(buffer) ((u32)((u64)(buffer)))
|
|
#define FORE200E_HDL2BUF(handle) ((struct buffer*)(((u64)(handle)) | PAGE_OFFSET))
|
|
#endif
|
|
|
|
|
|
/* host resident command queue */
|
|
|
|
typedef struct host_cmdq {
|
|
struct host_cmdq_entry host_entry[ QUEUE_SIZE_CMD ]; /* host resident cmd queue entries */
|
|
int head; /* head of cmd queue */
|
|
struct chunk status; /* array of completion status */
|
|
} host_cmdq_t;
|
|
|
|
|
|
/* host resident transmit queue */
|
|
|
|
typedef struct host_txq {
|
|
struct host_txq_entry host_entry[ QUEUE_SIZE_TX ]; /* host resident tx queue entries */
|
|
int head; /* head of tx queue */
|
|
int tail; /* tail of tx queue */
|
|
struct chunk tpd; /* array of tpds */
|
|
struct chunk status; /* arry of completion status */
|
|
int txing; /* number of pending PDUs in tx queue */
|
|
} host_txq_t;
|
|
|
|
|
|
/* host resident receive queue */
|
|
|
|
typedef struct host_rxq {
|
|
struct host_rxq_entry host_entry[ QUEUE_SIZE_RX ]; /* host resident rx queue entries */
|
|
int head; /* head of rx queue */
|
|
struct chunk rpd; /* array of rpds */
|
|
struct chunk status; /* array of completion status */
|
|
} host_rxq_t;
|
|
|
|
|
|
/* host resident buffer supply queues */
|
|
|
|
typedef struct host_bsq {
|
|
struct host_bsq_entry host_entry[ QUEUE_SIZE_BS ]; /* host resident buffer supply queue entries */
|
|
int head; /* head of buffer supply queue */
|
|
struct chunk rbd_block; /* array of rbds */
|
|
struct chunk status; /* array of completion status */
|
|
struct buffer* buffer; /* array of rx buffers */
|
|
struct buffer* freebuf; /* list of free rx buffers */
|
|
volatile int freebuf_count; /* count of free rx buffers */
|
|
} host_bsq_t;
|
|
|
|
|
|
/* header of the firmware image */
|
|
|
|
typedef struct fw_header {
|
|
__le32 magic; /* magic number */
|
|
__le32 version; /* firmware version id */
|
|
__le32 load_offset; /* fw load offset in board memory */
|
|
__le32 start_offset; /* fw execution start address in board memory */
|
|
} fw_header_t;
|
|
|
|
#define FW_HEADER_MAGIC 0x65726f66 /* 'fore' */
|
|
|
|
|
|
/* receive buffer supply queues scheme specification */
|
|
|
|
typedef struct bs_spec {
|
|
u32 queue_length; /* queue capacity */
|
|
u32 buffer_size; /* host buffer size */
|
|
u32 pool_size; /* number of rbds */
|
|
u32 supply_blksize; /* num of rbds in I/O block (multiple
|
|
of 4 between 4 and 124 inclusive) */
|
|
} bs_spec_t;
|
|
|
|
|
|
/* initialization command block (one-time command, not in cmd queue) */
|
|
|
|
typedef struct init_block {
|
|
enum opcode opcode; /* initialize command */
|
|
enum status status; /* related status word */
|
|
u32 receive_threshold; /* not used */
|
|
u32 num_connect; /* ATM connections */
|
|
u32 cmd_queue_len; /* length of command queue */
|
|
u32 tx_queue_len; /* length of transmit queue */
|
|
u32 rx_queue_len; /* length of receive queue */
|
|
u32 rsd_extension; /* number of extra 32 byte blocks */
|
|
u32 tsd_extension; /* number of extra 32 byte blocks */
|
|
u32 conless_vpvc; /* not used */
|
|
u32 pad[ 2 ]; /* force quad alignment */
|
|
struct bs_spec bs_spec[ BUFFER_SCHEME_NBR ][ BUFFER_MAGN_NBR ]; /* buffer supply queues spec */
|
|
} init_block_t;
|
|
|
|
|
|
typedef enum media_type {
|
|
MEDIA_TYPE_CAT5_UTP = 0x06, /* unshielded twisted pair */
|
|
MEDIA_TYPE_MM_OC3_ST = 0x16, /* multimode fiber ST */
|
|
MEDIA_TYPE_MM_OC3_SC = 0x26, /* multimode fiber SC */
|
|
MEDIA_TYPE_SM_OC3_ST = 0x36, /* single-mode fiber ST */
|
|
MEDIA_TYPE_SM_OC3_SC = 0x46 /* single-mode fiber SC */
|
|
} media_type_t;
|
|
|
|
#define FORE200E_MEDIA_INDEX(media_type) ((media_type)>>4)
|
|
|
|
|
|
/* cp resident queues */
|
|
|
|
typedef struct cp_queues {
|
|
u32 cp_cmdq; /* command queue */
|
|
u32 cp_txq; /* transmit queue */
|
|
u32 cp_rxq; /* receive queue */
|
|
u32 cp_bsq[ BUFFER_SCHEME_NBR ][ BUFFER_MAGN_NBR ]; /* buffer supply queues */
|
|
u32 imask; /* 1 enables cp to host interrupts */
|
|
u32 istat; /* 1 for interrupt posted */
|
|
u32 heap_base; /* offset form beginning of ram */
|
|
u32 heap_size; /* space available for queues */
|
|
u32 hlogger; /* non zero for host logging */
|
|
u32 heartbeat; /* cp heartbeat */
|
|
u32 fw_release; /* firmware version */
|
|
u32 mon960_release; /* i960 monitor version */
|
|
u32 tq_plen; /* transmit throughput measurements */
|
|
/* make sure the init block remains on a quad word boundary */
|
|
struct init_block init; /* one time cmd, not in cmd queue */
|
|
enum media_type media_type; /* media type id */
|
|
u32 oc3_revision; /* OC-3 revision number */
|
|
} cp_queues_t;
|
|
|
|
|
|
/* boot status */
|
|
|
|
typedef enum boot_status {
|
|
BSTAT_COLD_START = (u32) 0xc01dc01d, /* cold start */
|
|
BSTAT_SELFTEST_OK = (u32) 0x02201958, /* self-test ok */
|
|
BSTAT_SELFTEST_FAIL = (u32) 0xadbadbad, /* self-test failed */
|
|
BSTAT_CP_RUNNING = (u32) 0xce11feed, /* cp is running */
|
|
BSTAT_MON_TOO_BIG = (u32) 0x10aded00 /* i960 monitor is too big */
|
|
} boot_status_t;
|
|
|
|
|
|
/* software UART */
|
|
|
|
typedef struct soft_uart {
|
|
u32 send; /* write register */
|
|
u32 recv; /* read register */
|
|
} soft_uart_t;
|
|
|
|
#define FORE200E_CP_MONITOR_UART_FREE 0x00000000
|
|
#define FORE200E_CP_MONITOR_UART_AVAIL 0x01000000
|
|
|
|
|
|
/* i960 monitor */
|
|
|
|
typedef struct cp_monitor {
|
|
struct soft_uart soft_uart; /* software UART */
|
|
enum boot_status bstat; /* boot status */
|
|
u32 app_base; /* application base offset */
|
|
u32 mon_version; /* i960 monitor version */
|
|
} cp_monitor_t;
|
|
|
|
|
|
/* device state */
|
|
|
|
typedef enum fore200e_state {
|
|
FORE200E_STATE_BLANK, /* initial state */
|
|
FORE200E_STATE_REGISTER, /* device registered */
|
|
FORE200E_STATE_CONFIGURE, /* bus interface configured */
|
|
FORE200E_STATE_MAP, /* board space mapped in host memory */
|
|
FORE200E_STATE_RESET, /* board resetted */
|
|
FORE200E_STATE_START_FW, /* firmware started */
|
|
FORE200E_STATE_INITIALIZE, /* initialize command successful */
|
|
FORE200E_STATE_INIT_CMDQ, /* command queue initialized */
|
|
FORE200E_STATE_INIT_TXQ, /* transmit queue initialized */
|
|
FORE200E_STATE_INIT_RXQ, /* receive queue initialized */
|
|
FORE200E_STATE_INIT_BSQ, /* buffer supply queue initialized */
|
|
FORE200E_STATE_ALLOC_BUF, /* receive buffers allocated */
|
|
FORE200E_STATE_IRQ, /* host interrupt requested */
|
|
FORE200E_STATE_COMPLETE /* initialization completed */
|
|
} fore200e_state;
|
|
|
|
|
|
/* PCA-200E registers */
|
|
|
|
typedef struct fore200e_pca_regs {
|
|
volatile u32 __iomem * hcr; /* address of host control register */
|
|
volatile u32 __iomem * imr; /* address of host interrupt mask register */
|
|
volatile u32 __iomem * psr; /* address of PCI specific register */
|
|
} fore200e_pca_regs_t;
|
|
|
|
|
|
/* SBA-200E registers */
|
|
|
|
typedef struct fore200e_sba_regs {
|
|
u32 __iomem *hcr; /* address of host control register */
|
|
u32 __iomem *bsr; /* address of burst transfer size register */
|
|
u32 __iomem *isr; /* address of interrupt level selection register */
|
|
} fore200e_sba_regs_t;
|
|
|
|
|
|
/* model-specific registers */
|
|
|
|
typedef union fore200e_regs {
|
|
struct fore200e_pca_regs pca; /* PCA-200E registers */
|
|
struct fore200e_sba_regs sba; /* SBA-200E registers */
|
|
} fore200e_regs;
|
|
|
|
|
|
struct fore200e;
|
|
|
|
/* bus-dependent data */
|
|
|
|
typedef struct fore200e_bus {
|
|
char* model_name; /* board model name */
|
|
char* proc_name; /* board name under /proc/atm */
|
|
int descr_alignment; /* tpd/rpd/rbd DMA alignment requirement */
|
|
int buffer_alignment; /* rx buffers DMA alignment requirement */
|
|
int status_alignment; /* status words DMA alignment requirement */
|
|
u32 (*read)(volatile u32 __iomem *);
|
|
void (*write)(u32, volatile u32 __iomem *);
|
|
int (*configure)(struct fore200e*);
|
|
int (*map)(struct fore200e*);
|
|
void (*reset)(struct fore200e*);
|
|
int (*prom_read)(struct fore200e*, struct prom_data*);
|
|
void (*unmap)(struct fore200e*);
|
|
void (*irq_enable)(struct fore200e*);
|
|
int (*irq_check)(struct fore200e*);
|
|
void (*irq_ack)(struct fore200e*);
|
|
int (*proc_read)(struct fore200e*, char*);
|
|
} fore200e_bus_t;
|
|
|
|
/* vc mapping */
|
|
|
|
typedef struct fore200e_vc_map {
|
|
struct atm_vcc* vcc; /* vcc entry */
|
|
unsigned long incarn; /* vcc incarnation number */
|
|
} fore200e_vc_map_t;
|
|
|
|
#define FORE200E_VC_MAP(fore200e, vpi, vci) \
|
|
(& (fore200e)->vc_map[ ((vpi) << FORE200E_VCI_BITS) | (vci) ])
|
|
|
|
|
|
/* per-device data */
|
|
|
|
typedef struct fore200e {
|
|
struct list_head entry; /* next device */
|
|
const struct fore200e_bus* bus; /* bus-dependent code and data */
|
|
union fore200e_regs regs; /* bus-dependent registers */
|
|
struct atm_dev* atm_dev; /* ATM device */
|
|
|
|
enum fore200e_state state; /* device state */
|
|
|
|
char name[16]; /* device name */
|
|
struct device *dev;
|
|
int irq; /* irq number */
|
|
unsigned long phys_base; /* physical base address */
|
|
void __iomem * virt_base; /* virtual base address */
|
|
|
|
unsigned char esi[ ESI_LEN ]; /* end system identifier */
|
|
|
|
struct cp_monitor __iomem * cp_monitor; /* i960 monitor address */
|
|
struct cp_queues __iomem * cp_queues; /* cp resident queues */
|
|
struct host_cmdq host_cmdq; /* host resident cmd queue */
|
|
struct host_txq host_txq; /* host resident tx queue */
|
|
struct host_rxq host_rxq; /* host resident rx queue */
|
|
/* host resident buffer supply queues */
|
|
struct host_bsq host_bsq[ BUFFER_SCHEME_NBR ][ BUFFER_MAGN_NBR ];
|
|
|
|
u32 available_cell_rate; /* remaining pseudo-CBR bw on link */
|
|
|
|
int loop_mode; /* S/UNI loopback mode */
|
|
|
|
struct stats* stats; /* last snapshot of the stats */
|
|
|
|
struct mutex rate_mtx; /* protects rate reservation ops */
|
|
spinlock_t q_lock; /* protects queue ops */
|
|
#ifdef FORE200E_USE_TASKLET
|
|
struct tasklet_struct tx_tasklet; /* performs tx interrupt work */
|
|
struct tasklet_struct rx_tasklet; /* performs rx interrupt work */
|
|
#endif
|
|
unsigned long tx_sat; /* tx queue saturation count */
|
|
|
|
unsigned long incarn_count;
|
|
struct fore200e_vc_map vc_map[ NBR_CONNECT ]; /* vc mapping */
|
|
} fore200e_t;
|
|
|
|
|
|
/* per-vcc data */
|
|
|
|
typedef struct fore200e_vcc {
|
|
enum buffer_scheme scheme; /* rx buffer scheme */
|
|
struct tpd_rate rate; /* tx rate control data */
|
|
int rx_min_pdu; /* size of smallest PDU received */
|
|
int rx_max_pdu; /* size of largest PDU received */
|
|
int tx_min_pdu; /* size of smallest PDU transmitted */
|
|
int tx_max_pdu; /* size of largest PDU transmitted */
|
|
unsigned long tx_pdu; /* nbr of tx pdus */
|
|
unsigned long rx_pdu; /* nbr of rx pdus */
|
|
} fore200e_vcc_t;
|
|
|
|
|
|
|
|
/* 200E-series common memory layout */
|
|
|
|
#define FORE200E_CP_MONITOR_OFFSET 0x00000400 /* i960 monitor interface */
|
|
#define FORE200E_CP_QUEUES_OFFSET 0x00004d40 /* cp resident queues */
|
|
|
|
|
|
/* PCA-200E memory layout */
|
|
|
|
#define PCA200E_IOSPACE_LENGTH 0x00200000
|
|
|
|
#define PCA200E_HCR_OFFSET 0x00100000 /* board control register */
|
|
#define PCA200E_IMR_OFFSET 0x00100004 /* host IRQ mask register */
|
|
#define PCA200E_PSR_OFFSET 0x00100008 /* PCI specific register */
|
|
|
|
|
|
/* PCA-200E host control register */
|
|
|
|
#define PCA200E_HCR_RESET (1<<0) /* read / write */
|
|
#define PCA200E_HCR_HOLD_LOCK (1<<1) /* read / write */
|
|
#define PCA200E_HCR_I960FAIL (1<<2) /* read */
|
|
#define PCA200E_HCR_INTRB (1<<2) /* write */
|
|
#define PCA200E_HCR_HOLD_ACK (1<<3) /* read */
|
|
#define PCA200E_HCR_INTRA (1<<3) /* write */
|
|
#define PCA200E_HCR_OUTFULL (1<<4) /* read */
|
|
#define PCA200E_HCR_CLRINTR (1<<4) /* write */
|
|
#define PCA200E_HCR_ESPHOLD (1<<5) /* read */
|
|
#define PCA200E_HCR_INFULL (1<<6) /* read */
|
|
#define PCA200E_HCR_TESTMODE (1<<7) /* read */
|
|
|
|
|
|
/* PCA-200E PCI bus interface regs (offsets in PCI config space) */
|
|
|
|
#define PCA200E_PCI_LATENCY 0x40 /* maximum slave latenty */
|
|
#define PCA200E_PCI_MASTER_CTRL 0x41 /* master control */
|
|
#define PCA200E_PCI_THRESHOLD 0x42 /* burst / continuous req threshold */
|
|
|
|
/* PBI master control register */
|
|
|
|
#define PCA200E_CTRL_DIS_CACHE_RD (1<<0) /* disable cache-line reads */
|
|
#define PCA200E_CTRL_DIS_WRT_INVAL (1<<1) /* disable writes and invalidates */
|
|
#define PCA200E_CTRL_2_CACHE_WRT_INVAL (1<<2) /* require 2 cache-lines for writes and invalidates */
|
|
#define PCA200E_CTRL_IGN_LAT_TIMER (1<<3) /* ignore the latency timer */
|
|
#define PCA200E_CTRL_ENA_CONT_REQ_MODE (1<<4) /* enable continuous request mode */
|
|
#define PCA200E_CTRL_LARGE_PCI_BURSTS (1<<5) /* force large PCI bus bursts */
|
|
#define PCA200E_CTRL_CONVERT_ENDIAN (1<<6) /* convert endianess of slave RAM accesses */
|
|
|
|
|
|
|
|
#define SBA200E_PROM_NAME "FORE,sba-200e" /* device name in openprom tree */
|
|
|
|
|
|
/* size of SBA-200E registers */
|
|
|
|
#define SBA200E_HCR_LENGTH 4
|
|
#define SBA200E_BSR_LENGTH 4
|
|
#define SBA200E_ISR_LENGTH 4
|
|
#define SBA200E_RAM_LENGTH 0x40000
|
|
|
|
|
|
/* SBA-200E SBUS burst transfer size register */
|
|
|
|
#define SBA200E_BSR_BURST4 0x04
|
|
#define SBA200E_BSR_BURST8 0x08
|
|
#define SBA200E_BSR_BURST16 0x10
|
|
|
|
|
|
/* SBA-200E host control register */
|
|
|
|
#define SBA200E_HCR_RESET (1<<0) /* read / write (sticky) */
|
|
#define SBA200E_HCR_HOLD_LOCK (1<<1) /* read / write (sticky) */
|
|
#define SBA200E_HCR_I960FAIL (1<<2) /* read */
|
|
#define SBA200E_HCR_I960SETINTR (1<<2) /* write */
|
|
#define SBA200E_HCR_OUTFULL (1<<3) /* read */
|
|
#define SBA200E_HCR_INTR_CLR (1<<3) /* write */
|
|
#define SBA200E_HCR_INTR_ENA (1<<4) /* read / write (sticky) */
|
|
#define SBA200E_HCR_ESPHOLD (1<<5) /* read */
|
|
#define SBA200E_HCR_INFULL (1<<6) /* read */
|
|
#define SBA200E_HCR_TESTMODE (1<<7) /* read */
|
|
#define SBA200E_HCR_INTR_REQ (1<<8) /* read */
|
|
|
|
#define SBA200E_HCR_STICKY (SBA200E_HCR_RESET | SBA200E_HCR_HOLD_LOCK | SBA200E_HCR_INTR_ENA)
|
|
|
|
|
|
#endif /* __KERNEL__ */
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#endif /* _FORE200E_H */
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