diff options
Diffstat (limited to 'drivers/net/ldpaa_eth/ldpaa_eth.h')
| -rw-r--r-- | drivers/net/ldpaa_eth/ldpaa_eth.h | 153 |
1 files changed, 153 insertions, 0 deletions
diff --git a/drivers/net/ldpaa_eth/ldpaa_eth.h b/drivers/net/ldpaa_eth/ldpaa_eth.h new file mode 100644 index 0000000000..c7760ef69f --- /dev/null +++ b/drivers/net/ldpaa_eth/ldpaa_eth.h @@ -0,0 +1,153 @@ +/* + * Copyright (C) 2014 Freescale Semiconductor + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef __LDPAA_ETH_H +#define __LDPAA_ETH_H + +#include <linux/netdevice.h> +#include <fsl-mc/fsl_mc.h> +#include <fsl-mc/fsl_dpaa_fd.h> +#include <fsl-mc/fsl_dprc.h> +#include <fsl-mc/fsl_dpni.h> +#include <fsl-mc/fsl_dpbp.h> +#include <fsl-mc/fsl_dpio.h> +#include <fsl-mc/fsl_qbman_portal.h> +#include <fsl-mc/fsl_mc_private.h> + + +enum ldpaa_eth_type { + LDPAA_ETH_1G_E, + LDPAA_ETH_10G_E, +}; + +/* Arbitrary values for now, but we'll need to tune */ +#define LDPAA_ETH_NUM_BUFS (2 * 7) +#define LDPAA_ETH_REFILL_THRESH (LDPAA_ETH_NUM_BUFS/2) +#define LDPAA_ETH_RX_BUFFER_SIZE 2048 + +/* Hardware requires alignment for ingress/egress buffer addresses + * and ingress buffer lengths. + */ +#define LDPAA_ETH_BUF_ALIGN 64 + +/* So far we're only accomodating a skb backpointer in the frame's + * software annotation, but the hardware options are either 0 or 64. + */ +#define LDPAA_ETH_SWA_SIZE 64 + +/* Annotation valid bits in FD FRC */ +#define LDPAA_FD_FRC_FASV 0x8000 +#define LDPAA_FD_FRC_FAEADV 0x4000 +#define LDPAA_FD_FRC_FAPRV 0x2000 +#define LDPAA_FD_FRC_FAIADV 0x1000 +#define LDPAA_FD_FRC_FASWOV 0x0800 +#define LDPAA_FD_FRC_FAICFDV 0x0400 + +/* Annotation bits in FD CTRL */ +#define LDPAA_FD_CTRL_ASAL 0x00020000 /* ASAL = 128 */ +#define LDPAA_FD_CTRL_PTA 0x00800000 +#define LDPAA_FD_CTRL_PTV1 0x00400000 + +/* TODO: we may want to move this and other WRIOP related defines + * to a separate header + */ +/* Frame annotation status */ +struct ldpaa_fas { + u8 reserved; + u8 ppid; + __le16 ifpid; + __le32 status; +} __packed; + +/* Debug frame, otherwise supposed to be discarded */ +#define LDPAA_ETH_FAS_DISC 0x80000000 +/* MACSEC frame */ +#define LDPAA_ETH_FAS_MS 0x40000000 +#define LDPAA_ETH_FAS_PTP 0x08000000 +/* Ethernet multicast frame */ +#define LDPAA_ETH_FAS_MC 0x04000000 +/* Ethernet broadcast frame */ +#define LDPAA_ETH_FAS_BC 0x02000000 +#define LDPAA_ETH_FAS_KSE 0x00040000 +#define LDPAA_ETH_FAS_EOFHE 0x00020000 +#define LDPAA_ETH_FAS_MNLE 0x00010000 +#define LDPAA_ETH_FAS_TIDE 0x00008000 +#define LDPAA_ETH_FAS_PIEE 0x00004000 +/* Frame length error */ +#define LDPAA_ETH_FAS_FLE 0x00002000 +/* Frame physical error; our favourite pastime */ +#define LDPAA_ETH_FAS_FPE 0x00001000 +#define LDPAA_ETH_FAS_PTE 0x00000080 +#define LDPAA_ETH_FAS_ISP 0x00000040 +#define LDPAA_ETH_FAS_PHE 0x00000020 +#define LDPAA_ETH_FAS_BLE 0x00000010 +/* L3 csum validation performed */ +#define LDPAA_ETH_FAS_L3CV 0x00000008 +/* L3 csum error */ +#define LDPAA_ETH_FAS_L3CE 0x00000004 +/* L4 csum validation performed */ +#define LDPAA_ETH_FAS_L4CV 0x00000002 +/* L4 csum error */ +#define LDPAA_ETH_FAS_L4CE 0x00000001 +/* These bits always signal errors */ +#define LDPAA_ETH_RX_ERR_MASK (LDPAA_ETH_FAS_DISC | \ + LDPAA_ETH_FAS_KSE | \ + LDPAA_ETH_FAS_EOFHE | \ + LDPAA_ETH_FAS_MNLE | \ + LDPAA_ETH_FAS_TIDE | \ + LDPAA_ETH_FAS_PIEE | \ + LDPAA_ETH_FAS_FLE | \ + LDPAA_ETH_FAS_FPE | \ + LDPAA_ETH_FAS_PTE | \ + LDPAA_ETH_FAS_ISP | \ + LDPAA_ETH_FAS_PHE | \ + LDPAA_ETH_FAS_BLE | \ + LDPAA_ETH_FAS_L3CE | \ + LDPAA_ETH_FAS_L4CE) +/* Unsupported features in the ingress */ +#define LDPAA_ETH_RX_UNSUPP_MASK LDPAA_ETH_FAS_MS +/* TODO trim down the bitmask; not all of them apply to Tx-confirm */ +#define LDPAA_ETH_TXCONF_ERR_MASK (LDPAA_ETH_FAS_KSE | \ + LDPAA_ETH_FAS_EOFHE | \ + LDPAA_ETH_FAS_MNLE | \ + LDPAA_ETH_FAS_TIDE) + +struct ldpaa_eth_priv { + struct eth_device *net_dev; + int dpni_id; + uint16_t dpni_handle; + struct dpni_attr dpni_attrs; + /* Insofar as the MC is concerned, we're using one layout on all 3 types + * of buffers (Rx, Tx, Tx-Conf). + */ + struct dpni_buffer_layout buf_layout; + uint16_t tx_data_offset; + + uint32_t rx_dflt_fqid; + uint16_t tx_qdid; + uint32_t tx_conf_fqid; + uint16_t tx_flow_id; + + enum ldpaa_eth_type type; /* 1G or 10G ethernet */ + phy_interface_t enet_if; + struct mii_dev *bus; + struct phy_device *phydev; + int phyaddr; + +}; + +extern struct fsl_mc_io *dflt_mc_io; +extern struct fsl_dpbp_obj *dflt_dpbp; +extern struct fsl_dpio_obj *dflt_dpio; + +static void ldpaa_dpbp_drain_cnt(int count); +static void ldpaa_dpbp_drain(void); +static int ldpaa_dpbp_seed(uint16_t bpid); +static void ldpaa_dpbp_free(void); +static int ldpaa_dpni_setup(struct ldpaa_eth_priv *priv); +static int ldpaa_dpbp_setup(void); +static int ldpaa_dpni_bind(struct ldpaa_eth_priv *priv); +#endif /* __LDPAA_H */ |
