Commit 7b752fd3 authored by David S. Miller's avatar David S. Miller
Browse files

Merge branch 'fsl-fmain'

Igal Liberman says:

====================
Freescale DPAA FMan

The Freescale Data Path Acceleration Architecture (DPAA) is a set
of hardware components on specific QorIQ multicore processors.
This architecture provides the infrastructure to support
simplified sharing of networking interfaces and accelerators
by multiple CPU cores and the accelerators.

One of the DPAA accelerators is the Frame Manager (FMan)
which contains a series of hardware blocks: ports, Ethernet MACs,
a multi user RAM (MURAM) and Storage Profile (SP).

This patch set introduce the FMan drivers.
Each driver configures and initializes the corresponding
FMan hardware module (described above).
The MAC driver offers support for three different
types of MACs (eTSEC, TGEC, MEMAC).

v9 --> v10:
	- Addressed feedback from David Miller
		Remove private CRC implementation
	- Addressed feedback from Kenneth Klette Jonassen:
		- Use Kernel PHY API to configure dTSEC TBI
		- Use Kernel PHY API to configure mEMAC PCS
		  This patchset requires device tree update:
		  https://patchwork.ozlabs.org/patch/559501/


	- Addressed feedback from Andy Fleming

v8 --> v9:
	No changes

v7 --> v8:
	- Addressed feedback from David Miller
	- Support for ARM:
		- Device tree parsing
		- IO Accessors
		- Addressed compilation issue on non-PPC targets

v6 --> v7:
	- Addressed compilation issue on non-PPC targets
	- Removed B4860 rev 1 support

v5 --> v6:
	- Addressed feedback from Scott:
		- Moved kernel doc to source files
		- Removed a series of configurable settings
		- Miscellaneous code updates

v4 --> v5:
	- Addressed feedback from David Miller:
		- Removed driver layering
		- Reduce namespace pollution
		- Reduce code complexity and size

v3 --> v4:
	- Remove device_initcall call in driver registration (redundant)
	- Remove hot/cold labels
	- Minor update in FMan Clock read from device-tree
	- Update fixed-link support
	- Addressed feedback from Stephen Hemminger
		- Remove bogus blank line

v2 --> v3:
	- Addressed feedback from Scott:
		- Remove typedefs
		- Remove unnecessary memory barriers
		- Remove unnecessary casting
		- Remove KConfig options
		- Remove early_params
		- Remove Hungarian notation
		- Remove __packed__  attribute and padding from structures
		- Remove unlikely attribute (where it's not needed)
		- Use proper error codes and remove unnecessary prints
		- Use proper values for sleep routines
		- Replace complex Macros with functions
		- Improve device tree processing code
		- Use symbolic defines
		- Add time-out in busy-wait loops
		- Removed exit code (loadable module support will be added later)
	- Fixed "fixed-link" issue raised by Joakim Tjernlund

v1 --> v2:
	- Addressed feedback from Paul Bolle:
		- General feedback of FMan Driver layer
		- Remove Errata defines
		- Aligned comments to Kernel Doc
		- Remove Loadable Module support (not yet supported)
		- Removed not needed KConfig dependencies
	- Addressed feedback from Scott Wood
		- Use Kernel ioread/iowrite services
		- Squash FLIB source and header patches together

This submission is based on the prior Freescale DPAA FMan V3,RFC submission.
Several issues addresses in this submission:
	- Reduced MAC layering and complexity
	- Reduced code base
	- T1024/T2080 10G best effort support
====================
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parents 039f5062 39339616
......@@ -54,6 +54,7 @@ config FEC_MPC52xx_MDIO
If compiled as module, it will be called fec_mpc52xx_phy.
source "drivers/net/ethernet/freescale/fs_enet/Kconfig"
source "drivers/net/ethernet/freescale/fman/Kconfig"
config FSL_PQ_MDIO
tristate "Freescale PQ MDIO"
......
......@@ -17,3 +17,5 @@ gianfar_driver-objs := gianfar.o \
gianfar_ethtool.o
obj-$(CONFIG_UCC_GETH) += ucc_geth_driver.o
ucc_geth_driver-objs := ucc_geth.o ucc_geth_ethtool.o
obj-$(CONFIG_FSL_FMAN) += fman/
config FSL_FMAN
bool "FMan support"
depends on FSL_SOC || COMPILE_TEST
select GENERIC_ALLOCATOR
default n
help
Freescale Data-Path Acceleration Architecture Frame Manager
(FMan) support
subdir-ccflags-y += -I$(srctree)/drivers/net/ethernet/freescale/fman
obj-y += fsl_fman.o fsl_fman_mac.o fsl_mac.o
fsl_fman-objs := fman_muram.o fman.o fman_sp.o fman_port.o
fsl_fman_mac-objs := fman_dtsec.o fman_memac.o fman_tgec.o
fsl_mac-objs += mac.o
This diff is collapsed.
/*
* 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_H
#define __FM_H
#include <linux/io.h>
/* FM Frame descriptor macros */
/* Frame queue Context Override */
#define FM_FD_CMD_FCO 0x80000000
#define FM_FD_CMD_RPD 0x40000000 /* Read Prepended Data */
#define FM_FD_CMD_DTC 0x10000000 /* Do L4 Checksum */
/* TX-Port: Unsupported Format */
#define FM_FD_ERR_UNSUPPORTED_FORMAT 0x04000000
/* TX Port: Length Error */
#define FM_FD_ERR_LENGTH 0x02000000
#define FM_FD_ERR_DMA 0x01000000 /* DMA Data error */
/* IPR frame (not error) */
#define FM_FD_IPR 0x00000001
/* IPR non-consistent-sp */
#define FM_FD_ERR_IPR_NCSP (0x00100000 | FM_FD_IPR)
/* IPR error */
#define FM_FD_ERR_IPR (0x00200000 | FM_FD_IPR)
/* IPR timeout */
#define FM_FD_ERR_IPR_TO (0x00300000 | FM_FD_IPR)
/* TX Port: Length Error */
#define FM_FD_ERR_IPRE (FM_FD_ERR_IPR & ~FM_FD_IPR)
/* Rx FIFO overflow, FCS error, code error, running disparity error
* (SGMII and TBI modes), FIFO parity error. PHY Sequence error,
* PHY error control character detected.
*/
#define FM_FD_ERR_PHYSICAL 0x00080000
/* Frame too long OR Frame size exceeds max_length_frame */
#define FM_FD_ERR_SIZE 0x00040000
/* classification discard */
#define FM_FD_ERR_CLS_DISCARD 0x00020000
/* Extract Out of Frame */
#define FM_FD_ERR_EXTRACTION 0x00008000
/* No Scheme Selected */
#define FM_FD_ERR_NO_SCHEME 0x00004000
/* Keysize Overflow */
#define FM_FD_ERR_KEYSIZE_OVERFLOW 0x00002000
/* Frame color is red */
#define FM_FD_ERR_COLOR_RED 0x00000800
/* Frame color is yellow */
#define FM_FD_ERR_COLOR_YELLOW 0x00000400
/* Parser Time out Exceed */
#define FM_FD_ERR_PRS_TIMEOUT 0x00000080
/* Invalid Soft Parser instruction */
#define FM_FD_ERR_PRS_ILL_INSTRUCT 0x00000040
/* Header error was identified during parsing */
#define FM_FD_ERR_PRS_HDR_ERR 0x00000020
/* Frame parsed beyind 256 first bytes */
#define FM_FD_ERR_BLOCK_LIMIT_EXCEEDED 0x00000008
/* non Frame-Manager error */
#define FM_FD_RX_STATUS_ERR_NON_FM 0x00400000
/* FMan driver defines */
#define FMAN_BMI_FIFO_UNITS 0x100
#define OFFSET_UNITS 16
/* BMan defines */
#define BM_MAX_NUM_OF_POOLS 64 /* Buffers pools */
#define FMAN_PORT_MAX_EXT_POOLS_NUM 8 /* External BM pools per Rx port */
struct fman; /* FMan data */
/* Enum for defining port types */
enum fman_port_type {
FMAN_PORT_TYPE_TX = 0, /* TX Port */
FMAN_PORT_TYPE_RX, /* RX Port */
};
struct fman_rev_info {
u8 major; /* Major revision */
u8 minor; /* Minor revision */
};
enum fman_exceptions {
FMAN_EX_DMA_BUS_ERROR = 0, /* DMA bus error. */
FMAN_EX_DMA_READ_ECC, /* Read Buffer ECC error */
FMAN_EX_DMA_SYSTEM_WRITE_ECC, /* Write Buffer ECC err on sys side */
FMAN_EX_DMA_FM_WRITE_ECC, /* Write Buffer ECC error on FM side */
FMAN_EX_DMA_SINGLE_PORT_ECC, /* Single Port ECC error on FM side */
FMAN_EX_FPM_STALL_ON_TASKS, /* Stall of tasks on FPM */
FMAN_EX_FPM_SINGLE_ECC, /* Single ECC on FPM. */
FMAN_EX_FPM_DOUBLE_ECC, /* Double ECC error on FPM ram access */
FMAN_EX_QMI_SINGLE_ECC, /* Single ECC on QMI. */
FMAN_EX_QMI_DOUBLE_ECC, /* Double bit ECC occurred on QMI */
FMAN_EX_QMI_DEQ_FROM_UNKNOWN_PORTID,/* DeQ from unknown port id */
FMAN_EX_BMI_LIST_RAM_ECC, /* Linked List RAM ECC error */
FMAN_EX_BMI_STORAGE_PROFILE_ECC,/* storage profile */
FMAN_EX_BMI_STATISTICS_RAM_ECC,/* Statistics RAM ECC Err Enable */
FMAN_EX_BMI_DISPATCH_RAM_ECC, /* Dispatch RAM ECC Error Enable */
FMAN_EX_IRAM_ECC, /* Double bit ECC occurred on IRAM */
FMAN_EX_MURAM_ECC /* Double bit ECC occurred on MURAM */
};
/* Parse results memory layout */
struct fman_prs_result {
u8 lpid; /* Logical port id */
u8 shimr; /* Shim header result */
u16 l2r; /* Layer 2 result */
u16 l3r; /* Layer 3 result */
u8 l4r; /* Layer 4 result */
u8 cplan; /* Classification plan id */
u16 nxthdr; /* Next Header */
u16 cksum; /* Running-sum */
/* Flags&fragment-offset field of the last IP-header */
u16 flags_frag_off;
/* Routing type field of a IPV6 routing extension header */
u8 route_type;
/* Routing Extension Header Present; last bit is IP valid */
u8 rhp_ip_valid;
u8 shim_off[2]; /* Shim offset */
u8 ip_pid_off; /* IP PID (last IP-proto) offset */
u8 eth_off; /* ETH offset */
u8 llc_snap_off; /* LLC_SNAP offset */
u8 vlan_off[2]; /* VLAN offset */
u8 etype_off; /* ETYPE offset */
u8 pppoe_off; /* PPP offset */
u8 mpls_off[2]; /* MPLS offset */
u8 ip_off[2]; /* IP offset */
u8 gre_off; /* GRE offset */
u8 l4_off; /* Layer 4 offset */
u8 nxthdr_off; /* Parser end point */
};
/* A structure for defining buffer prefix area content. */
struct fman_buffer_prefix_content {
/* Number of bytes to be left at the beginning of the external
* buffer; Note that the private-area will start from the base
* of the buffer address.
*/
u16 priv_data_size;
/* true to pass the parse result to/from the FM;
* User may use FM_PORT_GetBufferPrsResult() in
* order to get the parser-result from a buffer.
*/
bool pass_prs_result;
/* true to pass the timeStamp to/from the FM User */
bool pass_time_stamp;
/* true to pass the KG hash result to/from the FM User may
* use FM_PORT_GetBufferHashResult() in order to get the
* parser-result from a buffer.
*/
bool pass_hash_result;
/* Add all other Internal-Context information: AD,
* hash-result, key, etc.
*/
u16 data_align;
};
/* A structure of information about each of the external
* buffer pools used by a port or storage-profile.
*/
struct fman_ext_pool_params {
u8 id; /* External buffer pool id */
u16 size; /* External buffer pool buffer size */
};
/* A structure for informing the driver about the external
* buffer pools allocated in the BM and used by a port or a
* storage-profile.
*/
struct fman_ext_pools {
u8 num_of_pools_used; /* Number of pools use by this port */
struct fman_ext_pool_params ext_buf_pool[FMAN_PORT_MAX_EXT_POOLS_NUM];
/* Parameters for each port */
};
/* A structure for defining BM pool depletion criteria */
struct fman_buf_pool_depletion {
/* select mode in which pause frames will be sent after a
* number of pools (all together!) are depleted
*/
bool pools_grp_mode_enable;
/* the number of depleted pools that will invoke pause
* frames transmission.
*/
u8 num_of_pools;
/* For each pool, true if it should be considered for
* depletion (Note - this pool must be used by this port!).
*/
bool pools_to_consider[BM_MAX_NUM_OF_POOLS];
/* select mode in which pause frames will be sent
* after a single-pool is depleted;
*/
bool single_pool_mode_enable;
/* For each pool, true if it should be considered
* for depletion (Note - this pool must be used by this port!)
*/
bool pools_to_consider_for_single_mode[BM_MAX_NUM_OF_POOLS];
};
/* Enum for inter-module interrupts registration */
enum fman_event_modules {
FMAN_MOD_MAC = 0, /* MAC event */
FMAN_MOD_FMAN_CTRL, /* FMAN Controller */
FMAN_MOD_DUMMY_LAST
};
/* Enum for interrupts types */
enum fman_intr_type {
FMAN_INTR_TYPE_ERR,
FMAN_INTR_TYPE_NORMAL
};
/* Enum for inter-module interrupts registration */
enum fman_inter_module_event {
FMAN_EV_ERR_MAC0 = 0, /* MAC 0 error event */
FMAN_EV_ERR_MAC1, /* MAC 1 error event */
FMAN_EV_ERR_MAC2, /* MAC 2 error event */
FMAN_EV_ERR_MAC3, /* MAC 3 error event */
FMAN_EV_ERR_MAC4, /* MAC 4 error event */
FMAN_EV_ERR_MAC5, /* MAC 5 error event */
FMAN_EV_ERR_MAC6, /* MAC 6 error event */
FMAN_EV_ERR_MAC7, /* MAC 7 error event */
FMAN_EV_ERR_MAC8, /* MAC 8 error event */
FMAN_EV_ERR_MAC9, /* MAC 9 error event */
FMAN_EV_MAC0, /* MAC 0 event (Magic packet detection) */
FMAN_EV_MAC1, /* MAC 1 event (Magic packet detection) */
FMAN_EV_MAC2, /* MAC 2 (Magic packet detection) */
FMAN_EV_MAC3, /* MAC 3 (Magic packet detection) */
FMAN_EV_MAC4, /* MAC 4 (Magic packet detection) */
FMAN_EV_MAC5, /* MAC 5 (Magic packet detection) */
FMAN_EV_MAC6, /* MAC 6 (Magic packet detection) */
FMAN_EV_MAC7, /* MAC 7 (Magic packet detection) */
FMAN_EV_MAC8, /* MAC 8 event (Magic packet detection) */
FMAN_EV_MAC9, /* MAC 9 event (Magic packet detection) */
FMAN_EV_FMAN_CTRL_0, /* Fman controller event 0 */
FMAN_EV_FMAN_CTRL_1, /* Fman controller event 1 */
FMAN_EV_FMAN_CTRL_2, /* Fman controller event 2 */
FMAN_EV_FMAN_CTRL_3, /* Fman controller event 3 */
FMAN_EV_CNT
};
struct fman_intr_src {
void (*isr_cb)(void *src_arg);
void *src_handle;
};
/* Structure for port-FM communication during fman_port_init. */
struct fman_port_init_params {
u8 port_id; /* port Id */
enum fman_port_type port_type; /* Port type */
u16 port_speed; /* Port speed */
u16 liodn_offset; /* Port's requested resource */
u8 num_of_tasks; /* Port's requested resource */
u8 num_of_extra_tasks; /* Port's requested resource */
u8 num_of_open_dmas; /* Port's requested resource */
u8 num_of_extra_open_dmas; /* Port's requested resource */
u32 size_of_fifo; /* Port's requested resource */
u32 extra_size_of_fifo; /* Port's requested resource */
u8 deq_pipeline_depth; /* Port's requested resource */
u16 max_frame_length; /* Port's max frame length. */
u16 liodn_base;
/* LIODN base for this port, to be used together with LIODN offset. */
};
void fman_get_revision(struct fman *fman, struct fman_rev_info *rev_info);
void fman_register_intr(struct fman *fman, enum fman_event_modules mod,
u8 mod_id, enum fman_intr_type intr_type,
void (*f_isr)(void *h_src_arg), void *h_src_arg);
void fman_unregister_intr(struct fman *fman, enum fman_event_modules mod,
u8 mod_id, enum fman_intr_type intr_type);
int fman_set_port_params(struct fman *fman,
struct fman_port_init_params *port_params);
int fman_reset_mac(struct fman *fman, u8 mac_id);
u16 fman_get_clock_freq(struct fman *fman);
u32 fman_get_bmi_max_fifo_size(struct fman *fman);
int fman_set_mac_max_frame(struct fman *fman, u8 mac_id, u16 mfl);
u32 fman_get_qman_channel_id(struct fman *fman, u32 port_id);
struct resource *fman_get_mem_region(struct fman *fman);
u16 fman_get_max_frm(void);
int fman_get_rx_extra_headroom(void);
struct fman *fman_bind(struct device *dev);
#endif /* __FM_H */
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/*
* 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 __DTSEC_H
#define __DTSEC_H
#include "fman_mac.h"
struct fman_mac *dtsec_config(struct fman_mac_params *params);
int dtsec_set_promiscuous(struct fman_mac *dtsec, bool new_val);
int dtsec_modify_mac_address(struct fman_mac *dtsec, enet_addr_t *enet_addr);
int dtsec_adjust_link(struct fman_mac *dtsec,
u16 speed);
int dtsec_restart_autoneg(struct fman_mac *dtsec);
int dtsec_cfg_max_frame_len(struct fman_mac *dtsec, u16 new_val);
int dtsec_cfg_pad_and_crc(struct fman_mac *dtsec, bool new_val);
int dtsec_enable(struct fman_mac *dtsec, enum comm_mode mode);
int dtsec_disable(struct fman_mac *dtsec, enum comm_mode mode);
int dtsec_init(struct fman_mac *dtsec);
int dtsec_free(struct fman_mac *dtsec);
int dtsec_accept_rx_pause_frames(struct fman_mac *dtsec, bool en);
int dtsec_set_tx_pause_frames(struct fman_mac *dtsec, u8 priority,
u16 pause_time, u16 thresh_time);
int dtsec_set_exception(struct fman_mac *dtsec,
enum fman_mac_exceptions exception, bool enable);
int dtsec_add_hash_mac_address(struct fman_mac *dtsec, enet_addr_t *eth_addr);
int dtsec_del_hash_mac_address(struct fman_mac *dtsec, enet_addr_t *eth_addr);
int dtsec_get_version(struct fman_mac *dtsec, u32 *mac_version);
#endif /* __DTSEC_H */
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/*
* 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 __MEMAC_H
#define __MEMAC_H
#include "fman_mac.h"
#include <linux/netdevice.h>
struct fman_mac *memac_config(struct fman_mac_params *params);
int memac_set_promiscuous(struct fman_mac *memac, bool new_val);
int memac_modify_mac_address(struct fman_mac *memac, enet_addr_t *enet_addr);
int memac_adjust_link(struct fman_mac *memac, u16 speed);
int memac_cfg_max_frame_len(struct fman_mac *memac, u16 new_val);
int memac_cfg_reset_on_init(struct fman_mac *memac, bool enable);
int memac_cfg_fixed_link(struct fman_mac *memac,
struct fixed_phy_status *fixed_link);
int memac_enable(struct fman_mac *memac, enum comm_mode mode);
int memac_disable(struct fman_mac *memac, enum comm_mode mode);
int memac_init(struct fman_mac *memac);
int memac_free(struct fman_mac *memac);
int memac_accept_rx_pause_frames(struct fman_mac *memac, bool en);
int memac_set_tx_pause_frames(struct fman_mac *memac, u8 priority,
u16 pause_time, u16 thresh_time);
int memac_set_exception(struct fman_mac *memac,
enum fman_mac_exceptions exception, bool enable);
int memac_add_hash_mac_address(struct fman_mac *memac, enet_addr_t *eth_addr);
int memac_del_hash_mac_address(struct fman_mac *memac, enet_addr_t *eth_addr);
#endif /* __MEMAC_H */
/*
* 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_muram.h"
#include <linux/io.h>
#include <linux/slab.h>
#include <linux/genalloc.h>
struct muram_info {
struct gen_pool *pool;
void __iomem *vbase;
size_t size;
phys_addr_t pbase;
};
static unsigned long fman_muram_vbase_to_offset(struct muram_info *muram,
unsigned long vaddr)
{
return vaddr - (unsigned long)muram->vbase;
}
/**
* fman_muram_init
* @base: Pointer to base of memory mapped FM-MURAM.
* @size: Size of the FM-MURAM partition.
*
* Creates partition in the MURAM.
* The routine returns a pointer to the MURAM partition.
* This pointer must be passed as to all other FM-MURAM function calls.
* No actual initialization or configuration of FM_MURAM hardware is done by
* this routine.
*
* Return: pointer to FM-MURAM object, or NULL for Failure.
*/
struct muram_info *fman_muram_init(phys_addr_t base, size_t size)
{
struct muram_info *muram;
void __iomem *vaddr;
int ret;
muram = kzalloc(sizeof(*muram), GFP_KERNEL);
if (!muram)
return NULL;
muram->pool = gen_pool_create(ilog2(64), -1);
if (!muram->pool) {
pr_err("%s(): MURAM pool create failed\n", __func__);
goto muram_free;
}
vaddr = ioremap(base, size);
if (!vaddr) {
pr_err("%s(): MURAM ioremap failed\n", __func__);
goto pool_destroy;
}
ret = gen_pool_add_virt(muram->pool, (unsigned long)vaddr,
base, size, -1);
if (ret < 0) {
pr_err("%s(): MURAM pool add failed\n", __func__);
iounmap(vaddr);
goto pool_destroy;
}
memset_io(vaddr, 0, (int)size);
muram->vbase = vaddr;
muram->pbase = base;
return muram;
pool_destroy:
gen_pool_destroy(muram->pool);
muram_free:
kfree(muram);
return NULL;
}
/**
* fman_muram_offset_to_vbase
* @muram: FM-MURAM module pointer.
* @offset: the offset of the memory block
*
* Gives the address of the memory region from specific offset
*
* Return: The address of the memory block
*/
unsigned long fman_muram_offset_to_vbase(struct muram_info *muram,
unsigned long offset)
{
return offset + (unsigned long)muram->vbase;