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83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
152 lines
4.4 KiB
C
152 lines
4.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Copyright (C) 2014-2016 Freescale Semiconductor
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* Copyright 2017 NXP
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*/
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#ifndef __LDPAA_ETH_H
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#define __LDPAA_ETH_H
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#include <linux/netdevice.h>
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#include <fsl-mc/fsl_mc.h>
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#include <fsl-mc/fsl_dpaa_fd.h>
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#include <fsl-mc/fsl_dprc.h>
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#include <fsl-mc/fsl_dpni.h>
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#include <fsl-mc/fsl_dpbp.h>
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#include <fsl-mc/fsl_dpio.h>
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#include <fsl-mc/fsl_qbman_portal.h>
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#include <fsl-mc/fsl_mc_private.h>
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enum ldpaa_eth_type {
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LDPAA_ETH_1G_E,
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LDPAA_ETH_10G_E,
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};
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/* Arbitrary values for now, but we'll need to tune */
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#define LDPAA_ETH_NUM_BUFS (7 * 7)
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#define LDPAA_ETH_REFILL_THRESH (LDPAA_ETH_NUM_BUFS/2)
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#define LDPAA_ETH_RX_BUFFER_SIZE 2048
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/* Hardware requires alignment for buffer address and length: 256-byte
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* for ingress, 64-byte for egress. Using 256 for both.
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*/
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#define LDPAA_ETH_BUF_ALIGN 256
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/* So far we're only accomodating a skb backpointer in the frame's
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* software annotation, but the hardware options are either 0 or 64.
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*/
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#define LDPAA_ETH_SWA_SIZE 64
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/* Annotation valid bits in FD FRC */
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#define LDPAA_FD_FRC_FASV 0x8000
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#define LDPAA_FD_FRC_FAEADV 0x4000
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#define LDPAA_FD_FRC_FAPRV 0x2000
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#define LDPAA_FD_FRC_FAIADV 0x1000
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#define LDPAA_FD_FRC_FASWOV 0x0800
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#define LDPAA_FD_FRC_FAICFDV 0x0400
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/* Annotation bits in FD CTRL */
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#define LDPAA_FD_CTRL_ASAL 0x00020000 /* ASAL = 128 */
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#define LDPAA_FD_CTRL_PTA 0x00800000
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#define LDPAA_FD_CTRL_PTV1 0x00400000
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/* TODO: we may want to move this and other WRIOP related defines
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* to a separate header
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*/
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/* Frame annotation status */
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struct ldpaa_fas {
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u8 reserved;
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u8 ppid;
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__le16 ifpid;
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__le32 status;
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} __packed;
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/* Debug frame, otherwise supposed to be discarded */
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#define LDPAA_ETH_FAS_DISC 0x80000000
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/* MACSEC frame */
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#define LDPAA_ETH_FAS_MS 0x40000000
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#define LDPAA_ETH_FAS_PTP 0x08000000
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/* Ethernet multicast frame */
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#define LDPAA_ETH_FAS_MC 0x04000000
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/* Ethernet broadcast frame */
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#define LDPAA_ETH_FAS_BC 0x02000000
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#define LDPAA_ETH_FAS_KSE 0x00040000
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#define LDPAA_ETH_FAS_EOFHE 0x00020000
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#define LDPAA_ETH_FAS_MNLE 0x00010000
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#define LDPAA_ETH_FAS_TIDE 0x00008000
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#define LDPAA_ETH_FAS_PIEE 0x00004000
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/* Frame length error */
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#define LDPAA_ETH_FAS_FLE 0x00002000
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/* Frame physical error; our favourite pastime */
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#define LDPAA_ETH_FAS_FPE 0x00001000
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#define LDPAA_ETH_FAS_PTE 0x00000080
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#define LDPAA_ETH_FAS_ISP 0x00000040
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#define LDPAA_ETH_FAS_PHE 0x00000020
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#define LDPAA_ETH_FAS_BLE 0x00000010
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/* L3 csum validation performed */
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#define LDPAA_ETH_FAS_L3CV 0x00000008
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/* L3 csum error */
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#define LDPAA_ETH_FAS_L3CE 0x00000004
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/* L4 csum validation performed */
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#define LDPAA_ETH_FAS_L4CV 0x00000002
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/* L4 csum error */
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#define LDPAA_ETH_FAS_L4CE 0x00000001
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/* These bits always signal errors */
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#define LDPAA_ETH_RX_ERR_MASK (LDPAA_ETH_FAS_DISC | \
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LDPAA_ETH_FAS_KSE | \
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LDPAA_ETH_FAS_EOFHE | \
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LDPAA_ETH_FAS_MNLE | \
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LDPAA_ETH_FAS_TIDE | \
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LDPAA_ETH_FAS_PIEE | \
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LDPAA_ETH_FAS_FLE | \
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LDPAA_ETH_FAS_FPE | \
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LDPAA_ETH_FAS_PTE | \
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LDPAA_ETH_FAS_ISP | \
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LDPAA_ETH_FAS_PHE | \
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LDPAA_ETH_FAS_BLE | \
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LDPAA_ETH_FAS_L3CE | \
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LDPAA_ETH_FAS_L4CE)
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/* Unsupported features in the ingress */
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#define LDPAA_ETH_RX_UNSUPP_MASK LDPAA_ETH_FAS_MS
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/* TODO trim down the bitmask; not all of them apply to Tx-confirm */
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#define LDPAA_ETH_TXCONF_ERR_MASK (LDPAA_ETH_FAS_KSE | \
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LDPAA_ETH_FAS_EOFHE | \
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LDPAA_ETH_FAS_MNLE | \
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LDPAA_ETH_FAS_TIDE)
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struct ldpaa_eth_priv {
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struct eth_device *net_dev;
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uint32_t dpmac_id;
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uint16_t dpmac_handle;
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uint16_t tx_data_offset;
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uint32_t rx_dflt_fqid;
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uint16_t tx_qdid;
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uint16_t tx_flow_id;
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enum ldpaa_eth_type type; /* 1G or 10G ethernet */
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struct phy_device *phydev;
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};
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struct dprc_endpoint dpmac_endpoint;
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struct dprc_endpoint dpni_endpoint;
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extern struct fsl_mc_io *dflt_mc_io;
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extern struct fsl_dpbp_obj *dflt_dpbp;
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extern struct fsl_dpio_obj *dflt_dpio;
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extern struct fsl_dpni_obj *dflt_dpni;
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extern uint16_t dflt_dprc_handle;
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static void ldpaa_dpbp_drain_cnt(int count);
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static void ldpaa_dpbp_drain(void);
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static int ldpaa_dpbp_seed(uint16_t bpid);
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static void ldpaa_dpbp_free(void);
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static int ldpaa_dpni_setup(struct ldpaa_eth_priv *priv);
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static int ldpaa_dpbp_setup(void);
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static int ldpaa_dpni_bind(struct ldpaa_eth_priv *priv);
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static int ldpaa_dpmac_setup(struct ldpaa_eth_priv *priv);
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static int ldpaa_dpmac_bind(struct ldpaa_eth_priv *priv);
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#endif /* __LDPAA_H */
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