mirror of https://gitee.com/openkylin/linux.git
386 lines
13 KiB
C
386 lines
13 KiB
C
/*
|
|
* This file is part of the Chelsio T4 Ethernet driver for Linux.
|
|
*
|
|
* Copyright (c) 2003-2016 Chelsio Communications, Inc. All rights reserved.
|
|
*
|
|
* This software is available to you under a choice of one of two
|
|
* licenses. You may choose to be licensed under the terms of the GNU
|
|
* General Public License (GPL) Version 2, available from the file
|
|
* COPYING in the main directory of this source tree, or the
|
|
* OpenIB.org BSD license below:
|
|
*
|
|
* Redistribution and use in source and binary forms, with or
|
|
* without modification, are permitted provided that the following
|
|
* conditions are met:
|
|
*
|
|
* - Redistributions of source code must retain the above
|
|
* copyright notice, this list of conditions and the following
|
|
* disclaimer.
|
|
*
|
|
* - Redistributions in binary form must reproduce the above
|
|
* copyright notice, this list of conditions and the following
|
|
* disclaimer in the documentation and/or other materials
|
|
* provided with the distribution.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
|
|
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
|
|
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
|
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
|
* SOFTWARE.
|
|
*/
|
|
|
|
#ifndef __CXGB4_ULD_H
|
|
#define __CXGB4_ULD_H
|
|
|
|
#include <linux/cache.h>
|
|
#include <linux/spinlock.h>
|
|
#include <linux/skbuff.h>
|
|
#include <linux/inetdevice.h>
|
|
#include <linux/atomic.h>
|
|
#include "cxgb4.h"
|
|
|
|
#define MAX_ULD_QSETS 16
|
|
|
|
/* CPL message priority levels */
|
|
enum {
|
|
CPL_PRIORITY_DATA = 0, /* data messages */
|
|
CPL_PRIORITY_SETUP = 1, /* connection setup messages */
|
|
CPL_PRIORITY_TEARDOWN = 0, /* connection teardown messages */
|
|
CPL_PRIORITY_LISTEN = 1, /* listen start/stop messages */
|
|
CPL_PRIORITY_ACK = 1, /* RX ACK messages */
|
|
CPL_PRIORITY_CONTROL = 1 /* control messages */
|
|
};
|
|
|
|
#define INIT_TP_WR(w, tid) do { \
|
|
(w)->wr.wr_hi = htonl(FW_WR_OP_V(FW_TP_WR) | \
|
|
FW_WR_IMMDLEN_V(sizeof(*w) - sizeof(w->wr))); \
|
|
(w)->wr.wr_mid = htonl(FW_WR_LEN16_V(DIV_ROUND_UP(sizeof(*w), 16)) | \
|
|
FW_WR_FLOWID_V(tid)); \
|
|
(w)->wr.wr_lo = cpu_to_be64(0); \
|
|
} while (0)
|
|
|
|
#define INIT_TP_WR_CPL(w, cpl, tid) do { \
|
|
INIT_TP_WR(w, tid); \
|
|
OPCODE_TID(w) = htonl(MK_OPCODE_TID(cpl, tid)); \
|
|
} while (0)
|
|
|
|
#define INIT_ULPTX_WR(w, wrlen, atomic, tid) do { \
|
|
(w)->wr.wr_hi = htonl(FW_WR_OP_V(FW_ULPTX_WR) | \
|
|
FW_WR_ATOMIC_V(atomic)); \
|
|
(w)->wr.wr_mid = htonl(FW_WR_LEN16_V(DIV_ROUND_UP(wrlen, 16)) | \
|
|
FW_WR_FLOWID_V(tid)); \
|
|
(w)->wr.wr_lo = cpu_to_be64(0); \
|
|
} while (0)
|
|
|
|
/* Special asynchronous notification message */
|
|
#define CXGB4_MSG_AN ((void *)1)
|
|
#define TX_ULD(uld)(((uld) != CXGB4_ULD_CRYPTO) ? CXGB4_TX_OFLD :\
|
|
CXGB4_TX_CRYPTO)
|
|
|
|
struct serv_entry {
|
|
void *data;
|
|
};
|
|
|
|
union aopen_entry {
|
|
void *data;
|
|
union aopen_entry *next;
|
|
};
|
|
|
|
/*
|
|
* Holds the size, base address, free list start, etc of the TID, server TID,
|
|
* and active-open TID tables. The tables themselves are allocated dynamically.
|
|
*/
|
|
struct tid_info {
|
|
void **tid_tab;
|
|
unsigned int ntids;
|
|
|
|
struct serv_entry *stid_tab;
|
|
unsigned long *stid_bmap;
|
|
unsigned int nstids;
|
|
unsigned int stid_base;
|
|
unsigned int hash_base;
|
|
|
|
union aopen_entry *atid_tab;
|
|
unsigned int natids;
|
|
unsigned int atid_base;
|
|
|
|
struct filter_entry *ftid_tab;
|
|
unsigned long *ftid_bmap;
|
|
unsigned int nftids;
|
|
unsigned int ftid_base;
|
|
unsigned int aftid_base;
|
|
unsigned int aftid_end;
|
|
/* Server filter region */
|
|
unsigned int sftid_base;
|
|
unsigned int nsftids;
|
|
|
|
spinlock_t atid_lock ____cacheline_aligned_in_smp;
|
|
union aopen_entry *afree;
|
|
unsigned int atids_in_use;
|
|
|
|
spinlock_t stid_lock;
|
|
unsigned int stids_in_use;
|
|
unsigned int sftids_in_use;
|
|
|
|
/* TIDs in the TCAM */
|
|
atomic_t tids_in_use;
|
|
/* TIDs in the HASH */
|
|
atomic_t hash_tids_in_use;
|
|
/* lock for setting/clearing filter bitmap */
|
|
spinlock_t ftid_lock;
|
|
};
|
|
|
|
static inline void *lookup_tid(const struct tid_info *t, unsigned int tid)
|
|
{
|
|
return tid < t->ntids ? t->tid_tab[tid] : NULL;
|
|
}
|
|
|
|
static inline void *lookup_atid(const struct tid_info *t, unsigned int atid)
|
|
{
|
|
return atid < t->natids ? t->atid_tab[atid].data : NULL;
|
|
}
|
|
|
|
static inline void *lookup_stid(const struct tid_info *t, unsigned int stid)
|
|
{
|
|
/* Is it a server filter TID? */
|
|
if (t->nsftids && (stid >= t->sftid_base)) {
|
|
stid -= t->sftid_base;
|
|
stid += t->nstids;
|
|
} else {
|
|
stid -= t->stid_base;
|
|
}
|
|
|
|
return stid < (t->nstids + t->nsftids) ? t->stid_tab[stid].data : NULL;
|
|
}
|
|
|
|
static inline void cxgb4_insert_tid(struct tid_info *t, void *data,
|
|
unsigned int tid)
|
|
{
|
|
t->tid_tab[tid] = data;
|
|
if (t->hash_base && (tid >= t->hash_base))
|
|
atomic_inc(&t->hash_tids_in_use);
|
|
else
|
|
atomic_inc(&t->tids_in_use);
|
|
}
|
|
|
|
int cxgb4_alloc_atid(struct tid_info *t, void *data);
|
|
int cxgb4_alloc_stid(struct tid_info *t, int family, void *data);
|
|
int cxgb4_alloc_sftid(struct tid_info *t, int family, void *data);
|
|
void cxgb4_free_atid(struct tid_info *t, unsigned int atid);
|
|
void cxgb4_free_stid(struct tid_info *t, unsigned int stid, int family);
|
|
void cxgb4_remove_tid(struct tid_info *t, unsigned int qid, unsigned int tid);
|
|
|
|
struct in6_addr;
|
|
|
|
int cxgb4_create_server(const struct net_device *dev, unsigned int stid,
|
|
__be32 sip, __be16 sport, __be16 vlan,
|
|
unsigned int queue);
|
|
int cxgb4_create_server6(const struct net_device *dev, unsigned int stid,
|
|
const struct in6_addr *sip, __be16 sport,
|
|
unsigned int queue);
|
|
int cxgb4_remove_server(const struct net_device *dev, unsigned int stid,
|
|
unsigned int queue, bool ipv6);
|
|
int cxgb4_create_server_filter(const struct net_device *dev, unsigned int stid,
|
|
__be32 sip, __be16 sport, __be16 vlan,
|
|
unsigned int queue,
|
|
unsigned char port, unsigned char mask);
|
|
int cxgb4_remove_server_filter(const struct net_device *dev, unsigned int stid,
|
|
unsigned int queue, bool ipv6);
|
|
|
|
/* Filter operation context to allow callers of cxgb4_set_filter() and
|
|
* cxgb4_del_filter() to wait for an asynchronous completion.
|
|
*/
|
|
struct filter_ctx {
|
|
struct completion completion; /* completion rendezvous */
|
|
void *closure; /* caller's opaque information */
|
|
int result; /* result of operation */
|
|
u32 tid; /* to store tid */
|
|
};
|
|
|
|
struct ch_filter_specification;
|
|
|
|
int __cxgb4_set_filter(struct net_device *dev, int filter_id,
|
|
struct ch_filter_specification *fs,
|
|
struct filter_ctx *ctx);
|
|
int __cxgb4_del_filter(struct net_device *dev, int filter_id,
|
|
struct filter_ctx *ctx);
|
|
int cxgb4_set_filter(struct net_device *dev, int filter_id,
|
|
struct ch_filter_specification *fs);
|
|
int cxgb4_del_filter(struct net_device *dev, int filter_id);
|
|
|
|
static inline void set_wr_txq(struct sk_buff *skb, int prio, int queue)
|
|
{
|
|
skb_set_queue_mapping(skb, (queue << 1) | prio);
|
|
}
|
|
|
|
enum cxgb4_uld {
|
|
CXGB4_ULD_INIT,
|
|
CXGB4_ULD_RDMA,
|
|
CXGB4_ULD_ISCSI,
|
|
CXGB4_ULD_ISCSIT,
|
|
CXGB4_ULD_CRYPTO,
|
|
CXGB4_ULD_MAX
|
|
};
|
|
|
|
enum cxgb4_tx_uld {
|
|
CXGB4_TX_OFLD,
|
|
CXGB4_TX_CRYPTO,
|
|
CXGB4_TX_MAX
|
|
};
|
|
|
|
enum cxgb4_txq_type {
|
|
CXGB4_TXQ_ETH,
|
|
CXGB4_TXQ_ULD,
|
|
CXGB4_TXQ_CTRL,
|
|
CXGB4_TXQ_MAX
|
|
};
|
|
|
|
enum cxgb4_state {
|
|
CXGB4_STATE_UP,
|
|
CXGB4_STATE_START_RECOVERY,
|
|
CXGB4_STATE_DOWN,
|
|
CXGB4_STATE_DETACH
|
|
};
|
|
|
|
enum cxgb4_control {
|
|
CXGB4_CONTROL_DB_FULL,
|
|
CXGB4_CONTROL_DB_EMPTY,
|
|
CXGB4_CONTROL_DB_DROP,
|
|
};
|
|
|
|
struct pci_dev;
|
|
struct l2t_data;
|
|
struct net_device;
|
|
struct pkt_gl;
|
|
struct tp_tcp_stats;
|
|
struct t4_lro_mgr;
|
|
|
|
struct cxgb4_range {
|
|
unsigned int start;
|
|
unsigned int size;
|
|
};
|
|
|
|
struct cxgb4_virt_res { /* virtualized HW resources */
|
|
struct cxgb4_range ddp;
|
|
struct cxgb4_range iscsi;
|
|
struct cxgb4_range stag;
|
|
struct cxgb4_range rq;
|
|
struct cxgb4_range pbl;
|
|
struct cxgb4_range qp;
|
|
struct cxgb4_range cq;
|
|
struct cxgb4_range ocq;
|
|
unsigned int ncrypto_fc;
|
|
};
|
|
|
|
#define OCQ_WIN_OFFSET(pdev, vres) \
|
|
(pci_resource_len((pdev), 2) - roundup_pow_of_two((vres)->ocq.size))
|
|
|
|
/*
|
|
* Block of information the LLD provides to ULDs attaching to a device.
|
|
*/
|
|
struct cxgb4_lld_info {
|
|
struct pci_dev *pdev; /* associated PCI device */
|
|
struct l2t_data *l2t; /* L2 table */
|
|
struct tid_info *tids; /* TID table */
|
|
struct net_device **ports; /* device ports */
|
|
const struct cxgb4_virt_res *vr; /* assorted HW resources */
|
|
const unsigned short *mtus; /* MTU table */
|
|
const unsigned short *rxq_ids; /* the ULD's Rx queue ids */
|
|
const unsigned short *ciq_ids; /* the ULD's concentrator IQ ids */
|
|
unsigned short nrxq; /* # of Rx queues */
|
|
unsigned short ntxq; /* # of Tx queues */
|
|
unsigned short nciq; /* # of concentrator IQ */
|
|
unsigned char nchan:4; /* # of channels */
|
|
unsigned char nports:4; /* # of ports */
|
|
unsigned char wr_cred; /* WR 16-byte credits */
|
|
unsigned char adapter_type; /* type of adapter */
|
|
unsigned char fw_api_ver; /* FW API version */
|
|
unsigned int fw_vers; /* FW version */
|
|
unsigned int iscsi_iolen; /* iSCSI max I/O length */
|
|
unsigned int cclk_ps; /* Core clock period in psec */
|
|
unsigned short udb_density; /* # of user DB/page */
|
|
unsigned short ucq_density; /* # of user CQs/page */
|
|
unsigned short filt_mode; /* filter optional components */
|
|
unsigned short tx_modq[NCHAN]; /* maps each tx channel to a */
|
|
/* scheduler queue */
|
|
void __iomem *gts_reg; /* address of GTS register */
|
|
void __iomem *db_reg; /* address of kernel doorbell */
|
|
int dbfifo_int_thresh; /* doorbell fifo int threshold */
|
|
unsigned int sge_ingpadboundary; /* SGE ingress padding boundary */
|
|
unsigned int sge_egrstatuspagesize; /* SGE egress status page size */
|
|
unsigned int sge_pktshift; /* Padding between CPL and */
|
|
/* packet data */
|
|
unsigned int pf; /* Physical Function we're using */
|
|
bool enable_fw_ofld_conn; /* Enable connection through fw */
|
|
/* WR */
|
|
unsigned int max_ordird_qp; /* Max ORD/IRD depth per RDMA QP */
|
|
unsigned int max_ird_adapter; /* Max IRD memory per adapter */
|
|
bool ulptx_memwrite_dsgl; /* use of T5 DSGL allowed */
|
|
unsigned int iscsi_tagmask; /* iscsi ddp tag mask */
|
|
unsigned int iscsi_pgsz_order; /* iscsi ddp page size orders */
|
|
unsigned int iscsi_llimit; /* chip's iscsi region llimit */
|
|
void **iscsi_ppm; /* iscsi page pod manager */
|
|
int nodeid; /* device numa node id */
|
|
bool fr_nsmr_tpte_wr_support; /* FW supports FR_NSMR_TPTE_WR */
|
|
};
|
|
|
|
struct cxgb4_uld_info {
|
|
const char *name;
|
|
void *handle;
|
|
unsigned int nrxq;
|
|
unsigned int rxq_size;
|
|
unsigned int ntxq;
|
|
bool ciq;
|
|
bool lro;
|
|
void *(*add)(const struct cxgb4_lld_info *p);
|
|
int (*rx_handler)(void *handle, const __be64 *rsp,
|
|
const struct pkt_gl *gl);
|
|
int (*state_change)(void *handle, enum cxgb4_state new_state);
|
|
int (*control)(void *handle, enum cxgb4_control control, ...);
|
|
int (*lro_rx_handler)(void *handle, const __be64 *rsp,
|
|
const struct pkt_gl *gl,
|
|
struct t4_lro_mgr *lro_mgr,
|
|
struct napi_struct *napi);
|
|
void (*lro_flush)(struct t4_lro_mgr *);
|
|
};
|
|
|
|
int cxgb4_register_uld(enum cxgb4_uld type, const struct cxgb4_uld_info *p);
|
|
int cxgb4_unregister_uld(enum cxgb4_uld type);
|
|
int cxgb4_ofld_send(struct net_device *dev, struct sk_buff *skb);
|
|
int cxgb4_crypto_send(struct net_device *dev, struct sk_buff *skb);
|
|
unsigned int cxgb4_dbfifo_count(const struct net_device *dev, int lpfifo);
|
|
unsigned int cxgb4_port_chan(const struct net_device *dev);
|
|
unsigned int cxgb4_port_viid(const struct net_device *dev);
|
|
unsigned int cxgb4_tp_smt_idx(enum chip_type chip, unsigned int viid);
|
|
unsigned int cxgb4_port_idx(const struct net_device *dev);
|
|
unsigned int cxgb4_best_mtu(const unsigned short *mtus, unsigned short mtu,
|
|
unsigned int *idx);
|
|
unsigned int cxgb4_best_aligned_mtu(const unsigned short *mtus,
|
|
unsigned short header_size,
|
|
unsigned short data_size_max,
|
|
unsigned short data_size_align,
|
|
unsigned int *mtu_idxp);
|
|
void cxgb4_get_tcp_stats(struct pci_dev *pdev, struct tp_tcp_stats *v4,
|
|
struct tp_tcp_stats *v6);
|
|
void cxgb4_iscsi_init(struct net_device *dev, unsigned int tag_mask,
|
|
const unsigned int *pgsz_order);
|
|
struct sk_buff *cxgb4_pktgl_to_skb(const struct pkt_gl *gl,
|
|
unsigned int skb_len, unsigned int pull_len);
|
|
int cxgb4_sync_txq_pidx(struct net_device *dev, u16 qid, u16 pidx, u16 size);
|
|
int cxgb4_flush_eq_cache(struct net_device *dev);
|
|
int cxgb4_read_tpte(struct net_device *dev, u32 stag, __be32 *tpte);
|
|
u64 cxgb4_read_sge_timestamp(struct net_device *dev);
|
|
|
|
enum cxgb4_bar2_qtype { CXGB4_BAR2_QTYPE_EGRESS, CXGB4_BAR2_QTYPE_INGRESS };
|
|
int cxgb4_bar2_sge_qregs(struct net_device *dev,
|
|
unsigned int qid,
|
|
enum cxgb4_bar2_qtype qtype,
|
|
int user,
|
|
u64 *pbar2_qoffset,
|
|
unsigned int *pbar2_qid);
|
|
|
|
#endif /* !__CXGB4_ULD_H */
|