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fsl/fman: Add FMan support

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Add the Data Path Acceleration Architecture Frame Manger Driver.
The FMan embeds a series of hardware blocks that implement a group
of Ethernet interfaces. This patch adds The FMan configuration,
initialization and runtime control routines.

The FMan driver supports several hardware versions
differentiated by things like:
	- Different type of MACs
	- Number of MAC and ports
	- Available resources
	- Different hardware errata

Signed-off-by: Igal Liberman <igal.liberman@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Igal Liberman 2015-12-21 02:21:26 +02:00 committed by David S. Miller
parent 5adae51a64
commit 414fd46e77
3 changed files with 3197 additions and 1 deletions
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2
drivers/net/ethernet/freescale/fman/Makefile
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@ -2,4 +2,4 @@ subdir-ccflags-y += -I$(srctree)/drivers/net/ethernet/freescale/fman
obj-y += fsl_fman.o
fsl_fman-objs := fman_muram.o
fsl_fman-objs := fman_muram.o fman.o

2871
drivers/net/ethernet/freescale/fman/fman.c Normal file
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325
drivers/net/ethernet/freescale/fman/fman.h Normal file
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@ -0,0 +1,325 @@
/*
* 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 */