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Commit e81edc38 authored by Igal Liberman's avatar Igal Liberman Committed by David S. Miller
Browse files

fsl/fman: Add FMan SP support 



The Storage Profiles contain parameters that are used
by the FMan for frame reception and transmission.

Signed-off-by: default avatarIgal Liberman <igal.liberman@freescale.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 57ba4c9b

drivers/net/ethernet/freescale/fman/Makefile

+1 −1
Original line number Diff line number Diff line
@@ -2,5 +2,5 @@ subdir-ccflags-y += -I$(srctree)/drivers/net/ethernet/freescale/fman 


obj-y		+= fsl_fman.o fsl_fman_mac.o



fsl_fman-objs	:= fman_muram.o fman.o

fsl_fman-objs	:= fman_muram.o fman.o fman_sp.o

fsl_fman_mac-objs := fman_dtsec.o fman_memac.o fman_tgec.o

drivers/net/ethernet/freescale/fman/fman_sp.c

0 → 100644
+166 −0
Original line number Diff line number Diff line 
/*

 * Copyright 2008 - 2015 Freescale Semiconductor Inc.

 *

 * 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.

 *     * Neither the name of Freescale Semiconductor nor the

 *       names of its contributors may be used to endorse or promote products

 *       derived from this software without specific prior written permission.

 *

 *

 * ALTERNATIVELY, this software may be distributed under the terms of the

 * GNU General Public License ("GPL") as published by the Free Software

 * Foundation, either version 2 of that License or (at your option) any

 * later version.

 *

 * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``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 Freescale Semiconductor 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.

 */



#include "fman_sp.h"

#include "fman.h"



void fman_sp_set_buf_pools_in_asc_order_of_buf_sizes(struct fman_ext_pools

						     *fm_ext_pools,

						     u8 *ordered_array,

						     u16 *sizes_array)

{

	u16 buf_size = 0;

	int i = 0, j = 0, k = 0;



	/* First we copy the external buffers pools information

	 * to an ordered local array

	 */

	for (i = 0; i < fm_ext_pools->num_of_pools_used; i++) {

		/* get pool size */

		buf_size = fm_ext_pools->ext_buf_pool[i].size;



		/* keep sizes in an array according to poolId

		 * for direct access

		 */

		sizes_array[fm_ext_pools->ext_buf_pool[i].id] = buf_size;



		/* save poolId in an ordered array according to size */

		for (j = 0; j <= i; j++) {

			/* this is the next free place in the array */

			if (j == i)

				ordered_array[i] =

				    fm_ext_pools->ext_buf_pool[i].id;

			else {

				/* find the right place for this poolId */

				if (buf_size < sizes_array[ordered_array[j]]) {

					/* move the pool_ids one place ahead

					 * to make room for this poolId

					 */

					for (k = i; k > j; k--)

						ordered_array[k] =

						    ordered_array[k - 1];



					/* now k==j, this is the place for

					 * the new size

					 */

					ordered_array[k] =

					    fm_ext_pools->ext_buf_pool[i].id;

					break;

				}

			}

		}

	}

}



int fman_sp_build_buffer_struct(struct fman_sp_int_context_data_copy *

				int_context_data_copy,

				struct fman_buffer_prefix_content *

				buffer_prefix_content,

				struct fman_sp_buf_margins *buf_margins,

				struct fman_sp_buffer_offsets *buffer_offsets,

				u8 *internal_buf_offset)

{

	u32 tmp;



	/* Align start of internal context data to 16 byte */

	int_context_data_copy->ext_buf_offset = (u16)

		((buffer_prefix_content->priv_data_size & (OFFSET_UNITS - 1)) ?

		((buffer_prefix_content->priv_data_size + OFFSET_UNITS) &

			~(u16)(OFFSET_UNITS - 1)) :

		buffer_prefix_content->priv_data_size);



	/* Translate margin and int_context params to FM parameters */

	/* Initialize with illegal value. Later we'll set legal values. */

	buffer_offsets->prs_result_offset = (u32)ILLEGAL_BASE;

	buffer_offsets->time_stamp_offset = (u32)ILLEGAL_BASE;

	buffer_offsets->hash_result_offset = (u32)ILLEGAL_BASE;



	/* Internally the driver supports 4 options

	 * 1. prsResult/timestamp/hashResult selection (in fact 8 options,

	 * but for simplicity we'll

	 * relate to it as 1).

	 * 2. All IC context (from AD) not including debug.

	 */



	/* This case covers the options under 1 */

	/* Copy size must be in 16-byte granularity. */

	int_context_data_copy->size =

	    (u16)((buffer_prefix_content->pass_prs_result ? 32 : 0) +

		  ((buffer_prefix_content->pass_time_stamp ||

		  buffer_prefix_content->pass_hash_result) ? 16 : 0));



	/* Align start of internal context data to 16 byte */

	int_context_data_copy->int_context_offset =

	    (u8)(buffer_prefix_content->pass_prs_result ? 32 :

		 ((buffer_prefix_content->pass_time_stamp ||

		 buffer_prefix_content->pass_hash_result) ? 64 : 0));



	if (buffer_prefix_content->pass_prs_result)

		buffer_offsets->prs_result_offset =

		    int_context_data_copy->ext_buf_offset;

	if (buffer_prefix_content->pass_time_stamp)

		buffer_offsets->time_stamp_offset =

		    buffer_prefix_content->pass_prs_result ?

		    (int_context_data_copy->ext_buf_offset +

			sizeof(struct fman_prs_result)) :

		    int_context_data_copy->ext_buf_offset;

	if (buffer_prefix_content->pass_hash_result)

		/* If PR is not requested, whether TS is

		 * requested or not, IC will be copied from TS

			 */

		buffer_offsets->hash_result_offset =

		buffer_prefix_content->pass_prs_result ?

			(int_context_data_copy->ext_buf_offset +

				sizeof(struct fman_prs_result) + 8) :

			int_context_data_copy->ext_buf_offset + 8;



	if (int_context_data_copy->size)

		buf_margins->start_margins =

		    (u16)(int_context_data_copy->ext_buf_offset +

			  int_context_data_copy->size);

	else

		/* No Internal Context passing, STartMargin is

		 * immediately after private_info

		 */

		buf_margins->start_margins =

		    buffer_prefix_content->priv_data_size;



	/* align data start */

	tmp = (u32)(buf_margins->start_margins %

		    buffer_prefix_content->data_align);

	if (tmp)

		buf_margins->start_margins +=

		    (buffer_prefix_content->data_align - tmp);

	buffer_offsets->data_offset = buf_margins->start_margins;



	return 0;

}

drivers/net/ethernet/freescale/fman/fman_sp.h

0 → 100644
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Original line number Diff line number Diff line 
/*

 * Copyright 2008 - 2015 Freescale Semiconductor Inc.

 *

 * 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.

 *     * Neither the name of Freescale Semiconductor nor the

 *	 names of its contributors may be used to endorse or promote products

 *	 derived from this software without specific prior written permission.

 *

 * ALTERNATIVELY, this software may be distributed under the terms of the

 * GNU General Public License ("GPL") as published by the Free Software

 * Foundation, either version 2 of that License or (at your option) any

 * later version.

 *

 * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``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 Freescale Semiconductor 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.

 */



#ifndef __FM_SP_H

#define __FM_SP_H



#include "fman.h"

#include <linux/types.h>



#define ILLEGAL_BASE    (~0)



/* defaults */

#define DFLT_FM_SP_BUFFER_PREFIX_CONTEXT_DATA_ALIGN	64



/* Registers bit fields */

#define FMAN_SP_EXT_BUF_POOL_EN_COUNTER		0x40000000

#define FMAN_SP_EXT_BUF_POOL_VALID			0x80000000

#define FMAN_SP_EXT_BUF_POOL_BACKUP			0x20000000

#define FMAN_SP_DMA_ATTR_WRITE_OPTIMIZE		0x00100000

#define FMAN_SP_SG_DISABLE				0x80000000



/* shifts */

#define FMAN_SP_EXT_BUF_MARG_START_SHIFT		16

#define FMAN_SP_DMA_ATTR_SWP_SHIFT			30

#define FMAN_SP_IC_TO_EXT_SHIFT			16

#define FMAN_SP_IC_FROM_INT_SHIFT			8



/* structure for defining internal context copying */

struct fman_sp_int_context_data_copy {

	/* < Offset in External buffer to which internal

	 *  context is copied to (Rx) or taken from (Tx, Op).

	 */

	u16 ext_buf_offset;

	/* Offset within internal context to copy from

	 * (Rx) or to copy to (Tx, Op).

	 */

	u8 int_context_offset;

	/* Internal offset size to be copied */

	u16 size;

};



/*  struct for defining external buffer margins */

struct fman_sp_buf_margins {

	/* Number of bytes to be left at the beginning

	 * of the external buffer (must be divisible by 16)

	 */

	u16 start_margins;

	/* number of bytes to be left at the end

	 * of the external buffer(must be divisible by 16)

	 */

	u16 end_margins;

};



struct fman_sp_buffer_offsets {

	u32 data_offset;

	u32 prs_result_offset;

	u32 time_stamp_offset;

	u32 hash_result_offset;

};



int fman_sp_build_buffer_struct(struct fman_sp_int_context_data_copy

				*int_context_data_copy,

				struct fman_buffer_prefix_content

				*buffer_prefix_content,

				struct fman_sp_buf_margins *buf_margins,

				struct fman_sp_buffer_offsets

				*buffer_offsets,

				u8 *internal_buf_offset);



void fman_sp_set_buf_pools_in_asc_order_of_buf_sizes(struct fman_ext_pools

						     *fm_ext_pools,

						     u8 *ordered_array,

						     u16 *sizes_array);



#endif	/* __FM_SP_H */