diff options
Diffstat (limited to 'drivers/net/cxgb4/cxgb4_uld.h')
| -rw-r--r-- | drivers/net/cxgb4/cxgb4_uld.h | 239 |
1 files changed, 0 insertions, 239 deletions
diff --git a/drivers/net/cxgb4/cxgb4_uld.h b/drivers/net/cxgb4/cxgb4_uld.h deleted file mode 100644 index b1d39b8d141a..000000000000 --- a/drivers/net/cxgb4/cxgb4_uld.h +++ /dev/null @@ -1,239 +0,0 @@ -/* - * This file is part of the Chelsio T4 Ethernet driver for Linux. - * - * Copyright (c) 2003-2010 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_OFLD_H -#define __CXGB4_OFLD_H - -#include <linux/cache.h> -#include <linux/spinlock.h> -#include <linux/skbuff.h> -#include <linux/atomic.h> - -/* 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(FW_TP_WR) | \ - FW_WR_IMMDLEN(sizeof(*w) - sizeof(w->wr))); \ - (w)->wr.wr_mid = htonl(FW_WR_LEN16(DIV_ROUND_UP(sizeof(*w), 16)) | \ - FW_WR_FLOWID(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(FW_ULPTX_WR) | FW_WR_ATOMIC(atomic)); \ - (w)->wr.wr_mid = htonl(FW_WR_LEN16(DIV_ROUND_UP(wrlen, 16)) | \ - FW_WR_FLOWID(tid)); \ - (w)->wr.wr_lo = cpu_to_be64(0); \ -} while (0) - -/* Special asynchronous notification message */ -#define CXGB4_MSG_AN ((void *)1) - -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; - - union aopen_entry *atid_tab; - unsigned int natids; - - unsigned int nftids; - unsigned int ftid_base; - - 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; - - atomic_t tids_in_use; -}; - -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) -{ - stid -= t->stid_base; - return stid < t->nstids ? 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; - 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); -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, unsigned int queue); - -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_RDMA, - CXGB4_ULD_ISCSI, - CXGB4_ULD_MAX -}; - -enum cxgb4_state { - CXGB4_STATE_UP, - CXGB4_STATE_START_RECOVERY, - CXGB4_STATE_DOWN, - CXGB4_STATE_DETACH -}; - -struct pci_dev; -struct l2t_data; -struct net_device; -struct pkt_gl; -struct tp_tcp_stats; - -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; -}; - -#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 */ - unsigned short nrxq; /* # of Rx queues */ - unsigned short ntxq; /* # of Tx queues */ - 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 short udb_density; /* # of user DB/page */ - unsigned short ucq_density; /* # of user CQs/page */ - void __iomem *gts_reg; /* address of GTS register */ - void __iomem *db_reg; /* address of kernel doorbell */ -}; - -struct cxgb4_uld_info { - const char *name; - 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 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); -unsigned int cxgb4_port_chan(const struct net_device *dev); -unsigned int cxgb4_port_viid(const struct net_device *dev); -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); -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); -#endif /* !__CXGB4_OFLD_H */ |