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freebsd/sys/dev/vxge/vxgehal/vxgehal-doorbells.c
George V. Neville-Neil 548d35fd69 Exar driver for X3100 10GbE Server/Storage adapters 
Features: Jumbo frames (up to 9600), LRO (Large Receive Offload),
          TSO (TCP segmentation offload), RTH (Receive Traffic Hash).

Submitted by: Sriram Rapuru at Exar
MFC after:	2 weeks
2011-04-28 14:33:15 +00:00

273 lines
8.0 KiB
C
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/*-
* Copyright(c) 2002-2011 Exar Corp.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification are permitted provided 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.
*
* 3. Neither the name of the Exar Corporation nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT OWNER 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.
*/
/*$FreeBSD$*/
#include <dev/vxge/vxgehal/vxgehal.h>
/*
* __hal_non_offload_db_post - Post non offload doorbell
*
* @vpath_handle: vpath handle
* @txdl_ptr: The starting location of the TxDL in host memory
* @num_txds: The highest TxD in this TxDL (0 to 255 means 1 to 256)
* @no_snoop: No snoop flags
*
* This function posts a non-offload doorbell to doorbell FIFO
*
*/
void
__hal_non_offload_db_post(vxge_hal_vpath_h vpath_handle,
u64 txdl_ptr,
u32 num_txds,
u32 no_snoop)
{
u64 *db_ptr;
__hal_device_t *hldev;
__hal_vpath_handle_t *vp = (__hal_vpath_handle_t *) vpath_handle;
vxge_assert((vpath_handle != NULL) && (txdl_ptr != 0));
hldev = (__hal_device_t *) vp->vpath->hldev;
vxge_hal_trace_log_fifo("==> %s:%s:%d",
__FILE__, __func__, __LINE__);
vxge_hal_trace_log_fifo(
"vpath_handle = 0x"VXGE_OS_STXFMT", txdl_ptr = 0x"VXGE_OS_STXFMT
", num_txds = %d, no_snoop = %d", (ptr_t) vpath_handle,
(ptr_t) txdl_ptr, num_txds, no_snoop);
db_ptr = &vp->vpath->nofl_db->control_0;
vxge_os_pio_mem_write64(vp->vpath->hldev->header.pdev,
vp->vpath->hldev->header.regh0,
VXGE_HAL_NODBW_TYPE(VXGE_HAL_NODBW_TYPE_NODBW) |
VXGE_HAL_NODBW_LAST_TXD_NUMBER(num_txds) |
VXGE_HAL_NODBW_GET_NO_SNOOP(no_snoop),
db_ptr++);
vxge_os_pio_mem_write64(vp->vpath->hldev->header.pdev,
vp->vpath->hldev->header.regh0,
txdl_ptr,
db_ptr);
vxge_hal_trace_log_fifo("<== %s:%s:%d Result: 0",
__FILE__, __func__, __LINE__);
}
/*
* __hal_non_offload_db_reset - Reset non offload doorbell fifo
*
* @vpath_handle: vpath handle
*
* This function resets non-offload doorbell FIFO
*
*/
vxge_hal_status_e
__hal_non_offload_db_reset(vxge_hal_vpath_h vpath_handle)
{
vxge_hal_status_e status;
__hal_device_t *hldev;
__hal_vpath_handle_t *vp = (__hal_vpath_handle_t *) vpath_handle;
vxge_assert(vpath_handle != NULL);
hldev = (__hal_device_t *) vp->vpath->hldev;
vxge_hal_trace_log_fifo("==> %s:%s:%d",
__FILE__, __func__, __LINE__);
vxge_hal_trace_log_fifo(
"vpath_handle = 0x"VXGE_OS_STXFMT, (ptr_t) vpath_handle);
vxge_os_pio_mem_write64(vp->vpath->hldev->header.pdev,
vp->vpath->hldev->header.regh0,
VXGE_HAL_CMN_RSTHDLR_CFG2_SW_RESET_FIFO0(
1 << (16 - vp->vpath->vp_id)),
&vp->vpath->hldev->common_reg->cmn_rsthdlr_cfg2);
vxge_os_wmb();
status = vxge_hal_device_register_poll(vp->vpath->hldev->header.pdev,
vp->vpath->hldev->header.regh0,
&vp->vpath->hldev->common_reg->cmn_rsthdlr_cfg2, 0,
(u64) VXGE_HAL_CMN_RSTHDLR_CFG2_SW_RESET_FIFO0(
1 << (16 - vp->vpath->vp_id)),
VXGE_HAL_DEF_DEVICE_POLL_MILLIS);
vxge_hal_trace_log_fifo("<== %s:%s:%d Result: 0",
__FILE__, __func__, __LINE__);
return (status);
}
/*
* __hal_rxd_db_post - Post rxd doorbell
*
* @vpath_handle: vpath handle
* @num_bytes: The number of bytes
*
* This function posts a rxd doorbell
*
*/
void
__hal_rxd_db_post(vxge_hal_vpath_h vpath_handle,
u32 num_bytes)
{
__hal_device_t *hldev;
__hal_vpath_handle_t *vp = (__hal_vpath_handle_t *) vpath_handle;
vxge_assert(vpath_handle != NULL);
hldev = (__hal_device_t *) vp->vpath->hldev;
vxge_hal_trace_log_ring("==> %s:%s:%d",
__FILE__, __func__, __LINE__);
vxge_hal_trace_log_fifo(
"vpath_handle = 0x"VXGE_OS_STXFMT", num_bytes = %d",
(ptr_t) vpath_handle, num_bytes);
vxge_os_pio_mem_write64(vp->vpath->hldev->header.pdev,
vp->vpath->hldev->header.regh0,
VXGE_HAL_PRC_RXD_DOORBELL_NEW_QW_CNT((num_bytes >> 3)),
&vp->vpath->vp_reg->prc_rxd_doorbell);
vxge_hal_trace_log_ring("<== %s:%s:%d Result: 0",
__FILE__, __func__, __LINE__);
}
/*
* __hal_message_db_post - Post message doorbell
*
* @vpath_handle: VPATH handle
* @num_msg_bytes: The number of new message bytes made available
* by this doorbell entry.
* @immed_msg: Immediate message to be sent
* @immed_msg_len: Immediate message length
*
* This function posts a message doorbell to doorbell FIFO
*
*/
void
__hal_message_db_post(vxge_hal_vpath_h vpath_handle,
u32 num_msg_bytes,
u8 *immed_msg,
u32 immed_msg_len)
{
u32 i;
u64 *db_ptr;
__hal_device_t *hldev;
__hal_vpath_handle_t *vp = (__hal_vpath_handle_t *) vpath_handle;
vxge_assert((vpath_handle != NULL) && (num_msg_bytes != 0));
hldev = (__hal_device_t *) vp->vpath->hldev;
vxge_hal_trace_log_dmq("==> %s:%s:%d",
__FILE__, __func__, __LINE__);
vxge_hal_trace_log_dmq("vpath_handle = 0x"VXGE_OS_STXFMT", "
"num_msg_bytes = %d, immed_msg = 0x"VXGE_OS_STXFMT", "
"immed_msg_len = %d", (ptr_t) vpath_handle, num_msg_bytes,
(ptr_t) immed_msg, immed_msg_len);
db_ptr = &vp->vpath->msg_db->control_0;
vxge_os_pio_mem_write64(vp->vpath->hldev->header.pdev,
vp->vpath->hldev->header.regh0,
VXGE_HAL_MDBW_TYPE(VXGE_HAL_MDBW_TYPE_MDBW) |
VXGE_HAL_MDBW_MESSAGE_BYTE_COUNT(num_msg_bytes),
db_ptr++);
vxge_os_pio_mem_write64(vp->vpath->hldev->header.pdev,
vp->vpath->hldev->header.regh0,
VXGE_HAL_MDBW_IMMEDIATE_BYTE_COUNT(immed_msg_len),
db_ptr++);
for (i = 0; i < immed_msg_len / 8; i++) {
vxge_os_pio_mem_write64(vp->vpath->hldev->header.pdev,
vp->vpath->hldev->header.regh0,
*((u64 *) ((void *)&immed_msg[i * 8])),
db_ptr++);
}
vxge_hal_trace_log_dmq("<== %s:%s:%d Result: 0",
__FILE__, __func__, __LINE__);
}
/*
* __hal_message_db_reset - Reset message doorbell fifo
*
* @vpath_handle: vpath handle
*
* This function resets message doorbell FIFO
*
*/
vxge_hal_status_e
__hal_message_db_reset(vxge_hal_vpath_h vpath_handle)
{
vxge_hal_status_e status;
__hal_device_t *hldev;
__hal_vpath_handle_t *vp = (__hal_vpath_handle_t *) vpath_handle;
vxge_assert(vpath_handle != NULL);
hldev = (__hal_device_t *) vp->vpath->hldev;
vxge_hal_trace_log_dmq("==> %s:%s:%d",
__FILE__, __func__, __LINE__);
vxge_hal_trace_log_dmq("vpath_handle = 0x"VXGE_OS_STXFMT,
(ptr_t) vpath_handle);
vxge_os_pio_mem_write64(vp->vpath->hldev->header.pdev,
vp->vpath->hldev->header.regh0,
VXGE_HAL_CMN_RSTHDLR_CFG3_SW_RESET_FIFO1(
1 << (16 - vp->vpath->vp_id)),
&vp->vpath->hldev->common_reg->cmn_rsthdlr_cfg3);
vxge_os_wmb();
status = vxge_hal_device_register_poll(vp->vpath->hldev->header.pdev,
vp->vpath->hldev->header.regh0,
&vp->vpath->hldev->common_reg->cmn_rsthdlr_cfg3, 0,
(u64) VXGE_HAL_CMN_RSTHDLR_CFG3_SW_RESET_FIFO1(
1 << (16 - vp->vpath->vp_id)),
VXGE_HAL_DEF_DEVICE_POLL_MILLIS);
vxge_hal_trace_log_dmq("<== %s:%s:%d Result: 0",
__FILE__, __func__, __LINE__);
return (status);
}
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