2 * Copyright (C) 2014-2016 Freescale Semiconductor
5 * SPDX-License-Identifier: GPL-2.0+
11 #include <linux/netdevice.h>
12 #include <fsl-mc/fsl_mc.h>
13 #include <fsl-mc/fsl_dpaa_fd.h>
14 #include <fsl-mc/fsl_dprc.h>
15 #include <fsl-mc/fsl_dpni.h>
16 #include <fsl-mc/fsl_dpbp.h>
17 #include <fsl-mc/fsl_dpio.h>
18 #include <fsl-mc/fsl_qbman_portal.h>
19 #include <fsl-mc/fsl_mc_private.h>
27 /* Arbitrary values for now, but we'll need to tune */
28 #define LDPAA_ETH_NUM_BUFS (7 * 7)
29 #define LDPAA_ETH_REFILL_THRESH (LDPAA_ETH_NUM_BUFS/2)
30 #define LDPAA_ETH_RX_BUFFER_SIZE 2048
32 /* Hardware requires alignment for buffer address and length: 256-byte
33 * for ingress, 64-byte for egress. Using 256 for both.
35 #define LDPAA_ETH_BUF_ALIGN 256
37 /* So far we're only accomodating a skb backpointer in the frame's
38 * software annotation, but the hardware options are either 0 or 64.
40 #define LDPAA_ETH_SWA_SIZE 64
42 /* Annotation valid bits in FD FRC */
43 #define LDPAA_FD_FRC_FASV 0x8000
44 #define LDPAA_FD_FRC_FAEADV 0x4000
45 #define LDPAA_FD_FRC_FAPRV 0x2000
46 #define LDPAA_FD_FRC_FAIADV 0x1000
47 #define LDPAA_FD_FRC_FASWOV 0x0800
48 #define LDPAA_FD_FRC_FAICFDV 0x0400
50 /* Annotation bits in FD CTRL */
51 #define LDPAA_FD_CTRL_ASAL 0x00020000 /* ASAL = 128 */
52 #define LDPAA_FD_CTRL_PTA 0x00800000
53 #define LDPAA_FD_CTRL_PTV1 0x00400000
55 /* TODO: we may want to move this and other WRIOP related defines
56 * to a separate header
58 /* Frame annotation status */
66 /* Debug frame, otherwise supposed to be discarded */
67 #define LDPAA_ETH_FAS_DISC 0x80000000
69 #define LDPAA_ETH_FAS_MS 0x40000000
70 #define LDPAA_ETH_FAS_PTP 0x08000000
71 /* Ethernet multicast frame */
72 #define LDPAA_ETH_FAS_MC 0x04000000
73 /* Ethernet broadcast frame */
74 #define LDPAA_ETH_FAS_BC 0x02000000
75 #define LDPAA_ETH_FAS_KSE 0x00040000
76 #define LDPAA_ETH_FAS_EOFHE 0x00020000
77 #define LDPAA_ETH_FAS_MNLE 0x00010000
78 #define LDPAA_ETH_FAS_TIDE 0x00008000
79 #define LDPAA_ETH_FAS_PIEE 0x00004000
80 /* Frame length error */
81 #define LDPAA_ETH_FAS_FLE 0x00002000
82 /* Frame physical error; our favourite pastime */
83 #define LDPAA_ETH_FAS_FPE 0x00001000
84 #define LDPAA_ETH_FAS_PTE 0x00000080
85 #define LDPAA_ETH_FAS_ISP 0x00000040
86 #define LDPAA_ETH_FAS_PHE 0x00000020
87 #define LDPAA_ETH_FAS_BLE 0x00000010
88 /* L3 csum validation performed */
89 #define LDPAA_ETH_FAS_L3CV 0x00000008
91 #define LDPAA_ETH_FAS_L3CE 0x00000004
92 /* L4 csum validation performed */
93 #define LDPAA_ETH_FAS_L4CV 0x00000002
95 #define LDPAA_ETH_FAS_L4CE 0x00000001
96 /* These bits always signal errors */
97 #define LDPAA_ETH_RX_ERR_MASK (LDPAA_ETH_FAS_DISC | \
99 LDPAA_ETH_FAS_EOFHE | \
100 LDPAA_ETH_FAS_MNLE | \
101 LDPAA_ETH_FAS_TIDE | \
102 LDPAA_ETH_FAS_PIEE | \
103 LDPAA_ETH_FAS_FLE | \
104 LDPAA_ETH_FAS_FPE | \
105 LDPAA_ETH_FAS_PTE | \
106 LDPAA_ETH_FAS_ISP | \
107 LDPAA_ETH_FAS_PHE | \
108 LDPAA_ETH_FAS_BLE | \
109 LDPAA_ETH_FAS_L3CE | \
111 /* Unsupported features in the ingress */
112 #define LDPAA_ETH_RX_UNSUPP_MASK LDPAA_ETH_FAS_MS
113 /* TODO trim down the bitmask; not all of them apply to Tx-confirm */
114 #define LDPAA_ETH_TXCONF_ERR_MASK (LDPAA_ETH_FAS_KSE | \
115 LDPAA_ETH_FAS_EOFHE | \
116 LDPAA_ETH_FAS_MNLE | \
119 struct ldpaa_eth_priv {
120 struct eth_device *net_dev;
122 uint16_t dpmac_handle;
124 uint16_t tx_data_offset;
126 uint32_t rx_dflt_fqid;
130 enum ldpaa_eth_type type; /* 1G or 10G ethernet */
131 struct phy_device *phydev;
134 struct dprc_endpoint dpmac_endpoint;
135 struct dprc_endpoint dpni_endpoint;
137 extern struct fsl_mc_io *dflt_mc_io;
138 extern struct fsl_dpbp_obj *dflt_dpbp;
139 extern struct fsl_dpio_obj *dflt_dpio;
140 extern struct fsl_dpni_obj *dflt_dpni;
141 extern uint16_t dflt_dprc_handle;
143 static void ldpaa_dpbp_drain_cnt(int count);
144 static void ldpaa_dpbp_drain(void);
145 static int ldpaa_dpbp_seed(uint16_t bpid);
146 static void ldpaa_dpbp_free(void);
147 static int ldpaa_dpni_setup(struct ldpaa_eth_priv *priv);
148 static int ldpaa_dpbp_setup(void);
149 static int ldpaa_dpni_bind(struct ldpaa_eth_priv *priv);
150 static int ldpaa_dpmac_setup(struct ldpaa_eth_priv *priv);
151 static int ldpaa_dpmac_bind(struct ldpaa_eth_priv *priv);
152 #endif /* __LDPAA_H */