Commit 9ed124a3 authored by Chas Williams's avatar Chas Williams Committed by Stephen Hemminger

[ATM]: [fore200e] 0.3e version by Christophe Lizzi (lizzi@cnam.fr)

parent cce24857
This diff is collapsed.
......@@ -23,19 +23,21 @@
#define BUFFER_S2_SIZE SMALL_BUFFER_SIZE /* size of small buffers, scheme 2 */
#define BUFFER_L2_SIZE LARGE_BUFFER_SIZE /* size of large buffers, scheme 2 */
#define BUFFER_S1_NBR (RBD_BLK_SIZE * 2)
#define BUFFER_L1_NBR (RBD_BLK_SIZE * 2)
#define BUFFER_S1_NBR (RBD_BLK_SIZE * 6)
#define BUFFER_L1_NBR (RBD_BLK_SIZE * 4)
#define BUFFER_S2_NBR (RBD_BLK_SIZE * 2)
#define BUFFER_L2_NBR (RBD_BLK_SIZE * 2)
#define BUFFER_S2_NBR (RBD_BLK_SIZE * 6)
#define BUFFER_L2_NBR (RBD_BLK_SIZE * 4)
#define QUEUE_SIZE_CMD 16 /* command queue capacity */
#define QUEUE_SIZE_RX 64 /* receive queue capacity */
#define QUEUE_SIZE_TX 256 /* transmit queue capacity */
#define QUEUE_SIZE_BS 16 /* buffer supply queue capacity */
#define QUEUE_SIZE_BS 32 /* buffer supply queue capacity */
#define NBR_CONNECT 1024 /* number of ATM connections */
#define FORE200E_VPI_BITS 0
#define FORE200E_VCI_BITS 10
#define NBR_CONNECT (1 << (FORE200E_VPI_BITS + FORE200E_VCI_BITS)) /* number of connections */
#define TSD_FIXED 2
......@@ -207,6 +209,7 @@ typedef struct tpd_haddr {
)
} tpd_haddr_t;
#define TPD_HADDR_SHIFT 5 /* addr aligned on 32 byte boundary */
/* cp resident transmit queue entry */
......@@ -522,8 +525,10 @@ typedef struct host_txq_entry {
struct tpd* tpd; /* addr of transmit PDU descriptor */
u32 tpd_dma; /* DMA address of tpd */
struct sk_buff* skb; /* related skb */
struct atm_vcc* vcc; /* related vcc */
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;
......@@ -576,6 +581,10 @@ typedef struct 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;
......@@ -602,6 +611,7 @@ typedef struct host_cmdq {
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 */
......@@ -626,8 +636,8 @@ typedef struct host_bsq {
struct chunk rbd_block; /* array of rbds */
struct chunk status; /* array of completion status */
struct buffer* buffer; /* array of rx buffers */
int free; /* index of first free rx buffer */
volatile int count; /* count of supplied rx buffers */
struct buffer* freebuf; /* list of free rx buffers */
volatile int freebuf_count; /* count of free rx buffers */
} host_bsq_t;
......@@ -847,6 +857,17 @@ typedef struct fore200e_bus {
#endif
/* 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 {
......@@ -880,8 +901,15 @@ typedef struct fore200e {
struct stats* stats; /* last snapshot of the stats */
struct semaphore rate_sf; /* protects rate reservation ops */
struct tasklet_struct tasklet; /* performs interrupt work */
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;
......@@ -894,6 +922,8 @@ typedef struct fore200e_vcc {
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;
......
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