freebsd-skq/sys/dev/cxgbe/offload.h
Navdeep Parhar 733b92779e Many updates to cxgbe(4)
- Device configuration via plain text config file.  Also able to operate
  when not attached to the chip as the master driver.

- Generic "work request" queue that serves as the base for both ctrl and
  ofld tx queues.

- Generic interrupt handler routine that can process any event on any
  kind of ingress queue (via a dispatch table).

- A couple of new driver ioctls.  cxgbetool can now install a firmware
  to the card ("loadfw" command) and can read the card's memory
  ("memdump" and "tcb" commands).

- Lots of assorted information within dev.t4nex.X.misc.*  This is
  primarily for debugging and won't show up in sysctl -a.

- Code to manage the L2 tables on the chip.

- Updates to cxgbe(4) man page to go with the tunables that have changed.

- Updates to the shared code in common/

- Updates to the driver-firmware interface (now at fw 1.4.16.0)

MFC after:	1 month
2011-12-16 02:09:51 +00:00

154 lines
4.1 KiB
C

/*-
* Copyright (c) 2010 Chelsio Communications, Inc.
* All rights reserved.
* Written by: Navdeep Parhar <np@FreeBSD.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*
*/
#ifndef __T4_OFFLOAD_H__
#define __T4_OFFLOAD_H__
/* XXX: flagrant misuse of mbuf fields (during tx by TOM) */
#define MBUF_EQ(m) (*((void **)(&(m)->m_pkthdr.rcvif)))
/* These have to work for !M_PKTHDR so we use a field from m_hdr. */
#define MBUF_TX_CREDITS(m) ((m)->m_hdr.pad[0])
#define MBUF_DMA_MAPPED(m) ((m)->m_hdr.pad[1])
#define INIT_ULPTX_WR(w, wrlen, atomic, tid) do { \
(w)->wr.wr_hi = htonl(V_FW_WR_OP(FW_ULPTX_WR) | V_FW_WR_ATOMIC(atomic)); \
(w)->wr.wr_mid = htonl(V_FW_WR_LEN16(DIV_ROUND_UP(wrlen, 16)) | \
V_FW_WR_FLOWID(tid)); \
(w)->wr.wr_lo = cpu_to_be64(0); \
} while (0)
#define INIT_TP_WR(w, tid) do { \
(w)->wr.wr_hi = htonl(V_FW_WR_OP(FW_TP_WR) | \
V_FW_WR_IMMDLEN(sizeof(*w) - sizeof(w->wr))); \
(w)->wr.wr_mid = htonl(V_FW_WR_LEN16(DIV_ROUND_UP(sizeof(*w), 16)) | \
V_FW_WR_FLOWID(tid)); \
(w)->wr.wr_lo = cpu_to_be64(0); \
} while (0)
#define INIT_TP_WR_MIT_CPL(w, cpl, tid) do { \
INIT_TP_WR(w, tid); \
OPCODE_TID(w) = htonl(MK_OPCODE_TID(cpl, tid)); \
} while (0)
/*
* Max # of ATIDs. The absolute HW max is 16K but we keep it lower.
*/
#define MAX_ATIDS 8192U
union serv_entry {
void *data;
union serv_entry *next;
};
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;
union serv_entry *stid_tab;
unsigned int nstids;
unsigned int stid_base;
union aopen_entry *atid_tab;
unsigned int natids;
struct filter_entry *ftid_tab;
unsigned int nftids;
unsigned int ftid_base;
unsigned int ftids_in_use;
struct mtx atid_lock;
union aopen_entry *afree;
unsigned int atids_in_use;
struct mtx stid_lock;
union serv_entry *sfree;
unsigned int stids_in_use;
unsigned int tids_in_use;
};
struct t4_range {
unsigned int start;
unsigned int size;
};
struct t4_virt_res { /* virtualized HW resources */
struct t4_range ddp;
struct t4_range iscsi;
struct t4_range stag;
struct t4_range rq;
struct t4_range pbl;
struct t4_range qp;
struct t4_range cq;
struct t4_range ocq;
};
#ifndef TCP_OFFLOAD_DISABLE
enum {
ULD_TOM = 1,
};
struct adapter;
struct port_info;
struct uld_info {
SLIST_ENTRY(uld_info) link;
int refcount;
int uld_id;
int (*attach)(struct adapter *, void **);
int (*detach)(void *);
};
struct uld_softc {
struct uld_info *uld;
void *softc;
};
struct tom_tunables {
int sndbuf;
int ddp;
int indsz;
int ddp_thres;
};
int t4_register_uld(struct uld_info *);
int t4_unregister_uld(struct uld_info *);
#endif
#endif