-/******************************************************************************
- *
+/*
* nicstar.h
*
* Header file for the nicstar device driver.
* PowerPC support by Jay Talbott (jay_talbott@mcg.mot.com) April 1999
*
* (C) INESC 1998
- *
- ******************************************************************************/
-
+ */
#ifndef _LINUX_NICSTAR_H_
#define _LINUX_NICSTAR_H_
-
-/* Includes *******************************************************************/
+/* Includes */
#include <linux/types.h>
#include <linux/pci.h>
+#include <linux/idr.h>
#include <linux/uio.h>
#include <linux/skbuff.h>
#include <linux/atmdev.h>
#include <linux/atm_nicstar.h>
-
-/* Options ********************************************************************/
-
-#undef NS_DEBUG_SPINLOCKS
+/* Options */
#define NS_MAX_CARDS 4 /* Maximum number of NICStAR based cards
controlled by the device driver. Must
- be <= 5 */
+ be <= 5 */
#undef RCQ_SUPPORT /* Do not define this for now */
#define NS_VPIBITS 2 /* 0, 1, 2, or 8 */
#define NS_MAX_RCTSIZE 4096 /* Number of entries. 4096 or 16384.
- Define 4096 only if (all) your card(s)
+ Define 4096 only if (all) your card(s)
have 32K x 32bit SRAM, in which case
setting this to 16384 will just waste a
lot of memory.
128K x 32bit SRAM will limit the maximum
VCI. */
-/*#define NS_PCI_LATENCY 64*/ /* Must be a multiple of 32 */
+ /*#define NS_PCI_LATENCY 64*//* Must be a multiple of 32 */
/* Number of buffers initially allocated */
-#define NUM_SB 32 /* Must be even */
-#define NUM_LB 24 /* Must be even */
-#define NUM_HB 8 /* Pre-allocated huge buffers */
-#define NUM_IOVB 48 /* Iovec buffers */
+#define NUM_SB 32 /* Must be even */
+#define NUM_LB 24 /* Must be even */
+#define NUM_HB 8 /* Pre-allocated huge buffers */
+#define NUM_IOVB 48 /* Iovec buffers */
/* Lower level for count of buffers */
-#define MIN_SB 8 /* Must be even */
-#define MIN_LB 8 /* Must be even */
+#define MIN_SB 8 /* Must be even */
+#define MIN_LB 8 /* Must be even */
#define MIN_HB 6
#define MIN_IOVB 8
/* Upper level for count of buffers */
-#define MAX_SB 64 /* Must be even, <= 508 */
-#define MAX_LB 48 /* Must be even, <= 508 */
+#define MAX_SB 64 /* Must be even, <= 508 */
+#define MAX_LB 48 /* Must be even, <= 508 */
#define MAX_HB 10
#define MAX_IOVB 80
/* These are the absolute maximum allowed for the ioctl() */
-#define TOP_SB 256 /* Must be even, <= 508 */
-#define TOP_LB 128 /* Must be even, <= 508 */
+#define TOP_SB 256 /* Must be even, <= 508 */
+#define TOP_LB 128 /* Must be even, <= 508 */
#define TOP_HB 64
#define TOP_IOVB 256
-
#define MAX_TBD_PER_VC 1 /* Number of TBDs before a TSR */
#define MAX_TBD_PER_SCQ 10 /* Only meaningful for variable rate SCQs */
#define PCR_TOLERANCE (1.0001)
-
-
-/* ESI stuff ******************************************************************/
+/* ESI stuff */
#define NICSTAR_EPROM_MAC_ADDR_OFFSET 0x6C
#define NICSTAR_EPROM_MAC_ADDR_OFFSET_ALT 0xF6
-
-/* #defines *******************************************************************/
+/* #defines */
#define NS_IOREMAP_SIZE 4096
#define NS_SMSKBSIZE (NS_SMBUFSIZE + NS_AAL0_HEADER)
#define NS_LGSKBSIZE (NS_SMBUFSIZE + NS_LGBUFSIZE)
+/* NICStAR structures located in host memory */
-/* NICStAR structures located in host memory **********************************/
-
-
-
-/* RSQ - Receive Status Queue
+/*
+ * RSQ - Receive Status Queue
*
* Written by the NICStAR, read by the device driver.
*/
-typedef struct ns_rsqe
-{
- u32 word_1;
- u32 buffer_handle;
- u32 final_aal5_crc32;
- u32 word_4;
+typedef struct ns_rsqe {
+ u32 word_1;
+ u32 buffer_handle;
+ u32 final_aal5_crc32;
+ u32 word_4;
} ns_rsqe;
#define ns_rsqe_vpi(ns_rsqep) \
#define ns_rsqe_cellcount(ns_rsqep) \
(le32_to_cpu((ns_rsqep)->word_4) & 0x000001FF)
#define ns_rsqe_init(ns_rsqep) \
- ((ns_rsqep)->word_4 = cpu_to_le32(0x00000000))
+ ((ns_rsqep)->word_4 = cpu_to_le32(0x00000000))
#define NS_RSQ_NUM_ENTRIES (NS_RSQSIZE / 16)
#define NS_RSQ_ALIGNMENT NS_RSQSIZE
-
-
-/* RCQ - Raw Cell Queue
+/*
+ * RCQ - Raw Cell Queue
*
* Written by the NICStAR, read by the device driver.
*/
-typedef struct cell_payload
-{
- u32 word[12];
+typedef struct cell_payload {
+ u32 word[12];
} cell_payload;
-typedef struct ns_rcqe
-{
- u32 word_1;
- u32 word_2;
- u32 word_3;
- u32 word_4;
- cell_payload payload;
+typedef struct ns_rcqe {
+ u32 word_1;
+ u32 word_2;
+ u32 word_3;
+ u32 word_4;
+ cell_payload payload;
} ns_rcqe;
#define NS_RCQE_SIZE 64 /* bytes */
#define ns_rcqe_nextbufhandle(ns_rcqep) \
(le32_to_cpu((ns_rcqep)->word_2))
-
-
-/* SCQ - Segmentation Channel Queue
+/*
+ * SCQ - Segmentation Channel Queue
*
* Written by the device driver, read by the NICStAR.
*/
-typedef struct ns_scqe
-{
- u32 word_1;
- u32 word_2;
- u32 word_3;
- u32 word_4;
+typedef struct ns_scqe {
+ u32 word_1;
+ u32 word_2;
+ u32 word_3;
+ u32 word_4;
} ns_scqe;
/* NOTE: SCQ entries can be either a TBD (Transmit Buffer Descriptors)
- or TSR (Transmit Status Requests) */
+ or TSR (Transmit Status Requests) */
#define NS_SCQE_TYPE_TBD 0x00000000
#define NS_SCQE_TYPE_TSR 0x80000000
-
#define NS_TBD_EOPDU 0x40000000
#define NS_TBD_AAL0 0x00000000
#define NS_TBD_AAL34 0x04000000
#define ns_tbd_mkword_4(gfc, vpi, vci, pt, clp) \
(cpu_to_le32((gfc) << 28 | (vpi) << 20 | (vci) << 4 | (pt) << 1 | (clp)))
-
#define NS_TSR_INTENABLE 0x20000000
-#define NS_TSR_SCDISVBR 0xFFFF /* Use as scdi for VBR SCD */
+#define NS_TSR_SCDISVBR 0xFFFF /* Use as scdi for VBR SCD */
#define ns_tsr_mkword_1(flags) \
(cpu_to_le32(NS_SCQE_TYPE_TSR | (flags)))
#define NS_SCQE_SIZE 16
-
-
-/* TSQ - Transmit Status Queue
+/*
+ * TSQ - Transmit Status Queue
*
* Written by the NICStAR, read by the device driver.
*/
-typedef struct ns_tsi
-{
- u32 word_1;
- u32 word_2;
+typedef struct ns_tsi {
+ u32 word_1;
+ u32 word_2;
} ns_tsi;
/* NOTE: The first word can be a status word copied from the TSR which
- originated the TSI, or a timer overflow indicator. In this last
- case, the value of the first word is all zeroes. */
+ originated the TSI, or a timer overflow indicator. In this last
+ case, the value of the first word is all zeroes. */
#define NS_TSI_EMPTY 0x80000000
#define NS_TSI_TIMESTAMP_MASK 0x00FFFFFF
#define ns_tsi_init(ns_tsip) \
((ns_tsip)->word_2 = cpu_to_le32(NS_TSI_EMPTY))
-
#define NS_TSQSIZE 8192
#define NS_TSQ_NUM_ENTRIES 1024
#define NS_TSQ_ALIGNMENT 8192
-
#define NS_TSI_SCDISVBR NS_TSR_SCDISVBR
#define ns_tsi_tmrof(ns_tsip) \
#define ns_tsi_getscqpos(ns_tsip) \
(le32_to_cpu((ns_tsip)->word_1) & 0x00007FFF)
+/* NICStAR structures located in local SRAM */
-
-/* NICStAR structures located in local SRAM ***********************************/
-
-
-
-/* RCT - Receive Connection Table
+/*
+ * RCT - Receive Connection Table
*
* Written by both the NICStAR and the device driver.
*/
-typedef struct ns_rcte
-{
- u32 word_1;
- u32 buffer_handle;
- u32 dma_address;
- u32 aal5_crc32;
+typedef struct ns_rcte {
+ u32 word_1;
+ u32 buffer_handle;
+ u32 dma_address;
+ u32 aal5_crc32;
} ns_rcte;
-#define NS_RCTE_BSFB 0x00200000 /* Rev. D only */
+#define NS_RCTE_BSFB 0x00200000 /* Rev. D only */
#define NS_RCTE_NZGFC 0x00100000
#define NS_RCTE_CONNECTOPEN 0x00080000
#define NS_RCTE_AALMASK 0x00070000
#define NS_RCT_ENTRY_SIZE 4 /* Number of dwords */
/* NOTE: We could make macros to contruct the first word of the RCTE,
- but that doesn't seem to make much sense... */
+ but that doesn't seem to make much sense... */
-
-
-/* FBD - Free Buffer Descriptor
+/*
+ * FBD - Free Buffer Descriptor
*
* Written by the device driver using via the command register.
*/
-typedef struct ns_fbd
-{
- u32 buffer_handle;
- u32 dma_address;
+typedef struct ns_fbd {
+ u32 buffer_handle;
+ u32 dma_address;
} ns_fbd;
-
-
-
-/* TST - Transmit Schedule Table
+/*
+ * TST - Transmit Schedule Table
*
* Written by the device driver.
*/
#define NS_TST_OPCODE_MASK 0x60000000
-#define NS_TST_OPCODE_NULL 0x00000000 /* Insert null cell */
-#define NS_TST_OPCODE_FIXED 0x20000000 /* Cell from a fixed rate channel */
+#define NS_TST_OPCODE_NULL 0x00000000 /* Insert null cell */
+#define NS_TST_OPCODE_FIXED 0x20000000 /* Cell from a fixed rate channel */
#define NS_TST_OPCODE_VARIABLE 0x40000000
-#define NS_TST_OPCODE_END 0x60000000 /* Jump */
+#define NS_TST_OPCODE_END 0x60000000 /* Jump */
#define ns_tste_make(opcode, sramad) (opcode | sramad)
/* NOTE:
- When the opcode is FIXED, sramad specifies the SRAM address of the
- SCD for that fixed rate channel.
+ SCD for that fixed rate channel.
- When the opcode is END, sramad specifies the SRAM address of the
- location of the next TST entry to read.
+ location of the next TST entry to read.
*/
-
-
-/* SCD - Segmentation Channel Descriptor
+/*
+ * SCD - Segmentation Channel Descriptor
*
* Written by both the device driver and the NICStAR
*/
-typedef struct ns_scd
-{
- u32 word_1;
- u32 word_2;
- u32 partial_aal5_crc;
- u32 reserved;
- ns_scqe cache_a;
- ns_scqe cache_b;
+typedef struct ns_scd {
+ u32 word_1;
+ u32 word_2;
+ u32 partial_aal5_crc;
+ u32 reserved;
+ ns_scqe cache_a;
+ ns_scqe cache_b;
} ns_scd;
-#define NS_SCD_BASE_MASK_VAR 0xFFFFE000 /* Variable rate */
-#define NS_SCD_BASE_MASK_FIX 0xFFFFFC00 /* Fixed rate */
+#define NS_SCD_BASE_MASK_VAR 0xFFFFE000 /* Variable rate */
+#define NS_SCD_BASE_MASK_FIX 0xFFFFFC00 /* Fixed rate */
#define NS_SCD_TAIL_MASK_VAR 0x00001FF0
#define NS_SCD_TAIL_MASK_FIX 0x000003F0
#define NS_SCD_HEAD_MASK_VAR 0x00001FF0
#define NS_SCD_XMITFOREVER 0x02000000
/* NOTE: There are other fields in word 2 of the SCD, but as they should
- not be needed in the device driver they are not defined here. */
-
-
-
-
-/* NICStAR local SRAM memory map **********************************************/
+ not be needed in the device driver they are not defined here. */
+/* NICStAR local SRAM memory map */
#define NS_RCT 0x00000
#define NS_RCT_32_END 0x03FFF
#define NS_LGFBQ 0x1FC00
#define NS_LGFBQ_END 0x1FFFF
-
-
-/* NISCtAR operation registers ************************************************/
-
+/* NISCtAR operation registers */
/* See Section 3.4 of `IDT77211 NICStAR User Manual' from www.idt.com */
-enum ns_regs
-{
- DR0 = 0x00, /* Data Register 0 R/W*/
- DR1 = 0x04, /* Data Register 1 W */
- DR2 = 0x08, /* Data Register 2 W */
- DR3 = 0x0C, /* Data Register 3 W */
- CMD = 0x10, /* Command W */
- CFG = 0x14, /* Configuration R/W */
- STAT = 0x18, /* Status R/W */
- RSQB = 0x1C, /* Receive Status Queue Base W */
- RSQT = 0x20, /* Receive Status Queue Tail R */
- RSQH = 0x24, /* Receive Status Queue Head W */
- CDC = 0x28, /* Cell Drop Counter R/clear */
- VPEC = 0x2C, /* VPI/VCI Lookup Error Count R/clear */
- ICC = 0x30, /* Invalid Cell Count R/clear */
- RAWCT = 0x34, /* Raw Cell Tail R */
- TMR = 0x38, /* Timer R */
- TSTB = 0x3C, /* Transmit Schedule Table Base R/W */
- TSQB = 0x40, /* Transmit Status Queue Base W */
- TSQT = 0x44, /* Transmit Status Queue Tail R */
- TSQH = 0x48, /* Transmit Status Queue Head W */
- GP = 0x4C, /* General Purpose R/W */
- VPM = 0x50 /* VPI/VCI Mask W */
+enum ns_regs {
+ DR0 = 0x00, /* Data Register 0 R/W */
+ DR1 = 0x04, /* Data Register 1 W */
+ DR2 = 0x08, /* Data Register 2 W */
+ DR3 = 0x0C, /* Data Register 3 W */
+ CMD = 0x10, /* Command W */
+ CFG = 0x14, /* Configuration R/W */
+ STAT = 0x18, /* Status R/W */
+ RSQB = 0x1C, /* Receive Status Queue Base W */
+ RSQT = 0x20, /* Receive Status Queue Tail R */
+ RSQH = 0x24, /* Receive Status Queue Head W */
+ CDC = 0x28, /* Cell Drop Counter R/clear */
+ VPEC = 0x2C, /* VPI/VCI Lookup Error Count R/clear */
+ ICC = 0x30, /* Invalid Cell Count R/clear */
+ RAWCT = 0x34, /* Raw Cell Tail R */
+ TMR = 0x38, /* Timer R */
+ TSTB = 0x3C, /* Transmit Schedule Table Base R/W */
+ TSQB = 0x40, /* Transmit Status Queue Base W */
+ TSQT = 0x44, /* Transmit Status Queue Tail R */
+ TSQH = 0x48, /* Transmit Status Queue Head W */
+ GP = 0x4C, /* General Purpose R/W */
+ VPM = 0x50 /* VPI/VCI Mask W */
};
-
-/* NICStAR commands issued to the CMD register ********************************/
-
+/* NICStAR commands issued to the CMD register */
/* Top 4 bits are command opcode, lower 28 are parameters. */
#define NS_CMD_NO_OPERATION 0x00000000
- /* params always 0 */
+ /* params always 0 */
#define NS_CMD_OPENCLOSE_CONNECTION 0x20000000
- /* b19{1=open,0=close} b18-2{SRAM addr} */
+ /* b19{1=open,0=close} b18-2{SRAM addr} */
#define NS_CMD_WRITE_SRAM 0x40000000
- /* b18-2{SRAM addr} b1-0{burst size} */
+ /* b18-2{SRAM addr} b1-0{burst size} */
#define NS_CMD_READ_SRAM 0x50000000
- /* b18-2{SRAM addr} */
+ /* b18-2{SRAM addr} */
#define NS_CMD_WRITE_FREEBUFQ 0x60000000
- /* b0{large buf indicator} */
+ /* b0{large buf indicator} */
#define NS_CMD_READ_UTILITY 0x80000000
- /* b8{1=select UTL_CS1} b9{1=select UTL_CS0} b7-0{bus addr} */
+ /* b8{1=select UTL_CS1} b9{1=select UTL_CS0} b7-0{bus addr} */
#define NS_CMD_WRITE_UTILITY 0x90000000
- /* b8{1=select UTL_CS1} b9{1=select UTL_CS0} b7-0{bus addr} */
+ /* b8{1=select UTL_CS1} b9{1=select UTL_CS0} b7-0{bus addr} */
#define NS_CMD_OPEN_CONNECTION (NS_CMD_OPENCLOSE_CONNECTION | 0x00080000)
#define NS_CMD_CLOSE_CONNECTION NS_CMD_OPENCLOSE_CONNECTION
-
-/* NICStAR configuration bits *************************************************/
-
-#define NS_CFG_SWRST 0x80000000 /* Software Reset */
-#define NS_CFG_RXPATH 0x20000000 /* Receive Path Enable */
-#define NS_CFG_SMBUFSIZE_MASK 0x18000000 /* Small Receive Buffer Size */
-#define NS_CFG_LGBUFSIZE_MASK 0x06000000 /* Large Receive Buffer Size */
-#define NS_CFG_EFBIE 0x01000000 /* Empty Free Buffer Queue
- Interrupt Enable */
-#define NS_CFG_RSQSIZE_MASK 0x00C00000 /* Receive Status Queue Size */
-#define NS_CFG_ICACCEPT 0x00200000 /* Invalid Cell Accept */
-#define NS_CFG_IGNOREGFC 0x00100000 /* Ignore General Flow Control */
-#define NS_CFG_VPIBITS_MASK 0x000C0000 /* VPI/VCI Bits Size Select */
-#define NS_CFG_RCTSIZE_MASK 0x00030000 /* Receive Connection Table Size */
-#define NS_CFG_VCERRACCEPT 0x00008000 /* VPI/VCI Error Cell Accept */
-#define NS_CFG_RXINT_MASK 0x00007000 /* End of Receive PDU Interrupt
- Handling */
-#define NS_CFG_RAWIE 0x00000800 /* Raw Cell Qu' Interrupt Enable */
-#define NS_CFG_RSQAFIE 0x00000400 /* Receive Queue Almost Full
- Interrupt Enable */
-#define NS_CFG_RXRM 0x00000200 /* Receive RM Cells */
-#define NS_CFG_TMRROIE 0x00000080 /* Timer Roll Over Interrupt
- Enable */
-#define NS_CFG_TXEN 0x00000020 /* Transmit Operation Enable */
-#define NS_CFG_TXIE 0x00000010 /* Transmit Status Interrupt
- Enable */
-#define NS_CFG_TXURIE 0x00000008 /* Transmit Under-run Interrupt
- Enable */
-#define NS_CFG_UMODE 0x00000004 /* Utopia Mode (cell/byte) Select */
-#define NS_CFG_TSQFIE 0x00000002 /* Transmit Status Queue Full
- Interrupt Enable */
-#define NS_CFG_PHYIE 0x00000001 /* PHY Interrupt Enable */
+/* NICStAR configuration bits */
+
+#define NS_CFG_SWRST 0x80000000 /* Software Reset */
+#define NS_CFG_RXPATH 0x20000000 /* Receive Path Enable */
+#define NS_CFG_SMBUFSIZE_MASK 0x18000000 /* Small Receive Buffer Size */
+#define NS_CFG_LGBUFSIZE_MASK 0x06000000 /* Large Receive Buffer Size */
+#define NS_CFG_EFBIE 0x01000000 /* Empty Free Buffer Queue
+ Interrupt Enable */
+#define NS_CFG_RSQSIZE_MASK 0x00C00000 /* Receive Status Queue Size */
+#define NS_CFG_ICACCEPT 0x00200000 /* Invalid Cell Accept */
+#define NS_CFG_IGNOREGFC 0x00100000 /* Ignore General Flow Control */
+#define NS_CFG_VPIBITS_MASK 0x000C0000 /* VPI/VCI Bits Size Select */
+#define NS_CFG_RCTSIZE_MASK 0x00030000 /* Receive Connection Table Size */
+#define NS_CFG_VCERRACCEPT 0x00008000 /* VPI/VCI Error Cell Accept */
+#define NS_CFG_RXINT_MASK 0x00007000 /* End of Receive PDU Interrupt
+ Handling */
+#define NS_CFG_RAWIE 0x00000800 /* Raw Cell Qu' Interrupt Enable */
+#define NS_CFG_RSQAFIE 0x00000400 /* Receive Queue Almost Full
+ Interrupt Enable */
+#define NS_CFG_RXRM 0x00000200 /* Receive RM Cells */
+#define NS_CFG_TMRROIE 0x00000080 /* Timer Roll Over Interrupt
+ Enable */
+#define NS_CFG_TXEN 0x00000020 /* Transmit Operation Enable */
+#define NS_CFG_TXIE 0x00000010 /* Transmit Status Interrupt
+ Enable */
+#define NS_CFG_TXURIE 0x00000008 /* Transmit Under-run Interrupt
+ Enable */
+#define NS_CFG_UMODE 0x00000004 /* Utopia Mode (cell/byte) Select */
+#define NS_CFG_TSQFIE 0x00000002 /* Transmit Status Queue Full
+ Interrupt Enable */
+#define NS_CFG_PHYIE 0x00000001 /* PHY Interrupt Enable */
#define NS_CFG_SMBUFSIZE_48 0x00000000
#define NS_CFG_SMBUFSIZE_96 0x08000000
#define NS_CFG_RXINT_624US 0x00003000
#define NS_CFG_RXINT_899US 0x00004000
-
-/* NICStAR STATus bits ********************************************************/
-
-#define NS_STAT_SFBQC_MASK 0xFF000000 /* hi 8 bits Small Buffer Queue Count */
-#define NS_STAT_LFBQC_MASK 0x00FF0000 /* hi 8 bits Large Buffer Queue Count */
-#define NS_STAT_TSIF 0x00008000 /* Transmit Status Queue Indicator */
-#define NS_STAT_TXICP 0x00004000 /* Transmit Incomplete PDU */
-#define NS_STAT_TSQF 0x00001000 /* Transmit Status Queue Full */
-#define NS_STAT_TMROF 0x00000800 /* Timer Overflow */
-#define NS_STAT_PHYI 0x00000400 /* PHY Device Interrupt */
-#define NS_STAT_CMDBZ 0x00000200 /* Command Busy */
-#define NS_STAT_SFBQF 0x00000100 /* Small Buffer Queue Full */
-#define NS_STAT_LFBQF 0x00000080 /* Large Buffer Queue Full */
-#define NS_STAT_RSQF 0x00000040 /* Receive Status Queue Full */
-#define NS_STAT_EOPDU 0x00000020 /* End of PDU */
-#define NS_STAT_RAWCF 0x00000010 /* Raw Cell Flag */
-#define NS_STAT_SFBQE 0x00000008 /* Small Buffer Queue Empty */
-#define NS_STAT_LFBQE 0x00000004 /* Large Buffer Queue Empty */
-#define NS_STAT_RSQAF 0x00000002 /* Receive Status Queue Almost Full */
+/* NICStAR STATus bits */
+
+#define NS_STAT_SFBQC_MASK 0xFF000000 /* hi 8 bits Small Buffer Queue Count */
+#define NS_STAT_LFBQC_MASK 0x00FF0000 /* hi 8 bits Large Buffer Queue Count */
+#define NS_STAT_TSIF 0x00008000 /* Transmit Status Queue Indicator */
+#define NS_STAT_TXICP 0x00004000 /* Transmit Incomplete PDU */
+#define NS_STAT_TSQF 0x00001000 /* Transmit Status Queue Full */
+#define NS_STAT_TMROF 0x00000800 /* Timer Overflow */
+#define NS_STAT_PHYI 0x00000400 /* PHY Device Interrupt */
+#define NS_STAT_CMDBZ 0x00000200 /* Command Busy */
+#define NS_STAT_SFBQF 0x00000100 /* Small Buffer Queue Full */
+#define NS_STAT_LFBQF 0x00000080 /* Large Buffer Queue Full */
+#define NS_STAT_RSQF 0x00000040 /* Receive Status Queue Full */
+#define NS_STAT_EOPDU 0x00000020 /* End of PDU */
+#define NS_STAT_RAWCF 0x00000010 /* Raw Cell Flag */
+#define NS_STAT_SFBQE 0x00000008 /* Small Buffer Queue Empty */
+#define NS_STAT_LFBQE 0x00000004 /* Large Buffer Queue Empty */
+#define NS_STAT_RSQAF 0x00000002 /* Receive Status Queue Almost Full */
#define ns_stat_sfbqc_get(stat) (((stat) & NS_STAT_SFBQC_MASK) >> 23)
#define ns_stat_lfbqc_get(stat) (((stat) & NS_STAT_LFBQC_MASK) >> 15)
-
-
-/* #defines which depend on other #defines ************************************/
-
+/* #defines which depend on other #defines */
#define NS_TST0 NS_TST_FRSCD
#define NS_TST1 (NS_TST_FRSCD + NS_TST_NUM_ENTRIES + 1)
#define NS_CFG_TSQFIE_OPT 0x00000000
#endif /* ENABLE_TSQFIE */
-
-/* PCI stuff ******************************************************************/
+/* PCI stuff */
#ifndef PCI_VENDOR_ID_IDT
#define PCI_VENDOR_ID_IDT 0x111D
#define PCI_DEVICE_ID_IDT_IDT77201 0x0001
#endif /* PCI_DEVICE_ID_IDT_IDT77201 */
+/* Device driver structures */
-
-/* Device driver structures ***************************************************/
-
-
-struct ns_skb_cb {
- u32 buf_type; /* BUF_SM/BUF_LG/BUF_NONE */
+struct ns_skb_prv {
+ u32 buf_type; /* BUF_SM/BUF_LG/BUF_NONE */
+ u32 dma;
+ int iovcnt;
};
-#define NS_SKB_CB(skb) ((struct ns_skb_cb *)((skb)->cb))
-
-typedef struct tsq_info
-{
- void *org;
- ns_tsi *base;
- ns_tsi *next;
- ns_tsi *last;
+#define NS_PRV_BUFTYPE(skb) \
+ (((struct ns_skb_prv *)(ATM_SKB(skb)+1))->buf_type)
+#define NS_PRV_DMA(skb) \
+ (((struct ns_skb_prv *)(ATM_SKB(skb)+1))->dma)
+#define NS_PRV_IOVCNT(skb) \
+ (((struct ns_skb_prv *)(ATM_SKB(skb)+1))->iovcnt)
+
+typedef struct tsq_info {
+ void *org;
+ dma_addr_t dma;
+ ns_tsi *base;
+ ns_tsi *next;
+ ns_tsi *last;
} tsq_info;
-
-typedef struct scq_info
-{
- void *org;
- ns_scqe *base;
- ns_scqe *last;
- ns_scqe *next;
- volatile ns_scqe *tail; /* Not related to the nicstar register */
- unsigned num_entries;
- struct sk_buff **skb; /* Pointer to an array of pointers
- to the sk_buffs used for tx */
- u32 scd; /* SRAM address of the corresponding
- SCD */
- int tbd_count; /* Only meaningful on variable rate */
- wait_queue_head_t scqfull_waitq;
- volatile char full; /* SCQ full indicator */
- spinlock_t lock; /* SCQ spinlock */
-#ifdef NS_DEBUG_SPINLOCKS
- volatile long has_lock;
- volatile int cpu_lock;
-#endif /* NS_DEBUG_SPINLOCKS */
+typedef struct scq_info {
+ void *org;
+ dma_addr_t dma;
+ ns_scqe *base;
+ ns_scqe *last;
+ ns_scqe *next;
+ volatile ns_scqe *tail; /* Not related to the nicstar register */
+ unsigned num_entries;
+ struct sk_buff **skb; /* Pointer to an array of pointers
+ to the sk_buffs used for tx */
+ u32 scd; /* SRAM address of the corresponding
+ SCD */
+ int tbd_count; /* Only meaningful on variable rate */
+ wait_queue_head_t scqfull_waitq;
+ volatile char full; /* SCQ full indicator */
+ spinlock_t lock; /* SCQ spinlock */
} scq_info;
-
-
-typedef struct rsq_info
-{
- void *org;
- ns_rsqe *base;
- ns_rsqe *next;
- ns_rsqe *last;
+typedef struct rsq_info {
+ void *org;
+ dma_addr_t dma;
+ ns_rsqe *base;
+ ns_rsqe *next;
+ ns_rsqe *last;
} rsq_info;
-
-typedef struct skb_pool
-{
- volatile int count; /* number of buffers in the queue */
- struct sk_buff_head queue;
+typedef struct skb_pool {
+ volatile int count; /* number of buffers in the queue */
+ struct sk_buff_head queue;
} skb_pool;
/* NOTE: for small and large buffer pools, the count is not used, as the
actual value used for buffer management is the one read from the
card. */
-
-typedef struct vc_map
-{
- volatile unsigned int tx:1; /* TX vc? */
- volatile unsigned int rx:1; /* RX vc? */
- struct atm_vcc *tx_vcc, *rx_vcc;
- struct sk_buff *rx_iov; /* RX iovector skb */
- scq_info *scq; /* To keep track of the SCQ */
- u32 cbr_scd; /* SRAM address of the corresponding
- SCD. 0x00000000 for UBR/VBR/ABR */
- int tbd_count;
+typedef struct vc_map {
+ volatile unsigned int tx:1; /* TX vc? */
+ volatile unsigned int rx:1; /* RX vc? */
+ struct atm_vcc *tx_vcc, *rx_vcc;
+ struct sk_buff *rx_iov; /* RX iovector skb */
+ scq_info *scq; /* To keep track of the SCQ */
+ u32 cbr_scd; /* SRAM address of the corresponding
+ SCD. 0x00000000 for UBR/VBR/ABR */
+ int tbd_count;
} vc_map;
-
-struct ns_skb_data
-{
- struct atm_vcc *vcc;
- int iovcnt;
-};
-
-#define NS_SKB(skb) (((struct ns_skb_data *) (skb)->cb))
-
-
-typedef struct ns_dev
-{
- int index; /* Card ID to the device driver */
- int sram_size; /* In k x 32bit words. 32 or 128 */
- void __iomem *membase; /* Card's memory base address */
- unsigned long max_pcr;
- int rct_size; /* Number of entries */
- int vpibits;
- int vcibits;
- struct pci_dev *pcidev;
- struct atm_dev *atmdev;
- tsq_info tsq;
- rsq_info rsq;
- scq_info *scq0, *scq1, *scq2; /* VBR SCQs */
- skb_pool sbpool; /* Small buffers */
- skb_pool lbpool; /* Large buffers */
- skb_pool hbpool; /* Pre-allocated huge buffers */
- skb_pool iovpool; /* iovector buffers */
- volatile int efbie; /* Empty free buf. queue int. enabled */
- volatile u32 tst_addr; /* SRAM address of the TST in use */
- volatile int tst_free_entries;
- vc_map vcmap[NS_MAX_RCTSIZE];
- vc_map *tste2vc[NS_TST_NUM_ENTRIES];
- vc_map *scd2vc[NS_FRSCD_NUM];
- buf_nr sbnr;
- buf_nr lbnr;
- buf_nr hbnr;
- buf_nr iovnr;
- int sbfqc;
- int lbfqc;
- u32 sm_handle;
- u32 sm_addr;
- u32 lg_handle;
- u32 lg_addr;
- struct sk_buff *rcbuf; /* Current raw cell buffer */
- u32 rawch; /* Raw cell queue head */
- unsigned intcnt; /* Interrupt counter */
- spinlock_t int_lock; /* Interrupt lock */
- spinlock_t res_lock; /* Card resource lock */
-#ifdef NS_DEBUG_SPINLOCKS
- volatile long has_int_lock;
- volatile int cpu_int;
- volatile long has_res_lock;
- volatile int cpu_res;
-#endif /* NS_DEBUG_SPINLOCKS */
+typedef struct ns_dev {
+ int index; /* Card ID to the device driver */
+ int sram_size; /* In k x 32bit words. 32 or 128 */
+ void __iomem *membase; /* Card's memory base address */
+ unsigned long max_pcr;
+ int rct_size; /* Number of entries */
+ int vpibits;
+ int vcibits;
+ struct pci_dev *pcidev;
+ struct idr idr;
+ struct atm_dev *atmdev;
+ tsq_info tsq;
+ rsq_info rsq;
+ scq_info *scq0, *scq1, *scq2; /* VBR SCQs */
+ skb_pool sbpool; /* Small buffers */
+ skb_pool lbpool; /* Large buffers */
+ skb_pool hbpool; /* Pre-allocated huge buffers */
+ skb_pool iovpool; /* iovector buffers */
+ volatile int efbie; /* Empty free buf. queue int. enabled */
+ volatile u32 tst_addr; /* SRAM address of the TST in use */
+ volatile int tst_free_entries;
+ vc_map vcmap[NS_MAX_RCTSIZE];
+ vc_map *tste2vc[NS_TST_NUM_ENTRIES];
+ vc_map *scd2vc[NS_FRSCD_NUM];
+ buf_nr sbnr;
+ buf_nr lbnr;
+ buf_nr hbnr;
+ buf_nr iovnr;
+ int sbfqc;
+ int lbfqc;
+ struct sk_buff *sm_handle;
+ u32 sm_addr;
+ struct sk_buff *lg_handle;
+ u32 lg_addr;
+ struct sk_buff *rcbuf; /* Current raw cell buffer */
+ struct ns_rcqe *rawcell;
+ u32 rawch; /* Raw cell queue head */
+ unsigned intcnt; /* Interrupt counter */
+ spinlock_t int_lock; /* Interrupt lock */
+ spinlock_t res_lock; /* Card resource lock */
} ns_dev;
-
/* NOTE: Each tste2vc entry relates a given TST entry to the corresponding
- CBR vc. If the entry is not allocated, it must be NULL.
-
- There are two TSTs so the driver can modify them on the fly
- without stopping the transmission.
-
- scd2vc allows us to find out unused fixed rate SCDs, because
- they must have a NULL pointer here. */
+ CBR vc. If the entry is not allocated, it must be NULL.
+
+ There are two TSTs so the driver can modify them on the fly
+ without stopping the transmission.
+ scd2vc allows us to find out unused fixed rate SCDs, because
+ they must have a NULL pointer here. */
#endif /* _LINUX_NICSTAR_H_ */
git.samba.org / sfrench / cifs-2.6.git / blobdiff