diff options
Diffstat (limited to 'drivers/net/ethernet/intel/ixgbe/ixgbe_fcoe.h')
| -rw-r--r-- | drivers/net/ethernet/intel/ixgbe/ixgbe_fcoe.h | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_fcoe.h b/drivers/net/ethernet/intel/ixgbe/ixgbe_fcoe.h new file mode 100644 index 00000000000..0772b7730fc --- /dev/null +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_fcoe.h @@ -0,0 +1,87 @@ +/******************************************************************************* + + Intel 10 Gigabit PCI Express Linux driver + Copyright(c) 1999 - 2013 Intel Corporation. + + This program is free software; you can redistribute it and/or modify it + under the terms and conditions of the GNU General Public License, + version 2, as published by the Free Software Foundation. + + This program is distributed in the hope it will be useful, but WITHOUT + ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + more details. + + You should have received a copy of the GNU General Public License along with + this program; if not, write to the Free Software Foundation, Inc., + 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + + The full GNU General Public License is included in this distribution in + the file called "COPYING". + + Contact Information: + Linux NICS <linux.nics@intel.com> + e1000-devel Mailing List <e1000-devel@lists.sourceforge.net> + Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + +*******************************************************************************/ + +#ifndef _IXGBE_FCOE_H +#define _IXGBE_FCOE_H + +#include <scsi/fc/fc_fs.h> +#include <scsi/fc/fc_fcoe.h> + +/* shift bits within STAT fo FCSTAT */ +#define IXGBE_RXDADV_FCSTAT_SHIFT 4 + +/* ddp user buffer */ +#define IXGBE_BUFFCNT_MAX 256 /* 8 bits bufcnt */ +#define IXGBE_FCPTR_ALIGN 16 +#define IXGBE_FCPTR_MAX (IXGBE_BUFFCNT_MAX * sizeof(dma_addr_t)) +#define IXGBE_FCBUFF_4KB 0x0 +#define IXGBE_FCBUFF_8KB 0x1 +#define IXGBE_FCBUFF_16KB 0x2 +#define IXGBE_FCBUFF_64KB 0x3 +#define IXGBE_FCBUFF_MAX 65536 /* 64KB max */ +#define IXGBE_FCBUFF_MIN 4096 /* 4KB min */ +#define IXGBE_FCOE_DDP_MAX 512 /* 9 bits xid */ + +/* Default traffic class to use for FCoE */ +#define IXGBE_FCOE_DEFTC 3 + +/* fcerr */ +#define IXGBE_FCERR_BADCRC 0x00100000 + +/* FCoE DDP for target mode */ +#define __IXGBE_FCOE_TARGET 1 + +struct ixgbe_fcoe_ddp { + int len; + u32 err; + unsigned int sgc; + struct scatterlist *sgl; + dma_addr_t udp; + u64 *udl; + struct dma_pool *pool; +}; + +/* per cpu variables */ +struct ixgbe_fcoe_ddp_pool { + struct dma_pool *pool; + u64 noddp; + u64 noddp_ext_buff; +}; + +struct ixgbe_fcoe { + struct ixgbe_fcoe_ddp_pool __percpu *ddp_pool; + atomic_t refcnt; + spinlock_t lock; + struct ixgbe_fcoe_ddp ddp[IXGBE_FCOE_DDP_MAX]; + void *extra_ddp_buffer; + dma_addr_t extra_ddp_buffer_dma; + unsigned long mode; + u8 up; +}; + +#endif /* _IXGBE_FCOE_H */ |