/* * 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. */ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt #include "fman_tgec.h" #include "fman.h" #include <linux/slab.h> #include <linux/bitrev.h> #include <linux/io.h> #include <linux/crc32.h> /* Transmit Inter-Packet Gap Length Register (TX_IPG_LENGTH) */ #define TGEC_TX_IPG_LENGTH_MASK 0x000003ff /* Command and Configuration Register (COMMAND_CONFIG) */ #define CMD_CFG_EN_TIMESTAMP 0x00100000 #define CMD_CFG_NO_LEN_CHK 0x00020000 #define CMD_CFG_PAUSE_IGNORE 0x00000100 #define CMF_CFG_CRC_FWD 0x00000040 #define CMD_CFG_PROMIS_EN 0x00000010 #define CMD_CFG_RX_EN 0x00000002 #define CMD_CFG_TX_EN 0x00000001 /* Interrupt Mask Register (IMASK) */ #define TGEC_IMASK_MDIO_SCAN_EVENT 0x00010000 #define TGEC_IMASK_MDIO_CMD_CMPL 0x00008000 #define TGEC_IMASK_REM_FAULT 0x00004000 #define TGEC_IMASK_LOC_FAULT 0x00002000 #define TGEC_IMASK_TX_ECC_ER 0x00001000 #define TGEC_IMASK_TX_FIFO_UNFL 0x00000800 #define TGEC_IMASK_TX_FIFO_OVFL 0x00000400 #define TGEC_IMASK_TX_ER 0x00000200 #define TGEC_IMASK_RX_FIFO_OVFL 0x00000100 #define TGEC_IMASK_RX_ECC_ER 0x00000080 #define TGEC_IMASK_RX_JAB_FRM 0x00000040 #define TGEC_IMASK_RX_OVRSZ_FRM 0x00000020 #define TGEC_IMASK_RX_RUNT_FRM 0x00000010 #define TGEC_IMASK_RX_FRAG_FRM 0x00000008 #define TGEC_IMASK_RX_LEN_ER 0x00000004 #define TGEC_IMASK_RX_CRC_ER 0x00000002 #define TGEC_IMASK_RX_ALIGN_ER 0x00000001 /* Hashtable Control Register (HASHTABLE_CTRL) */ #define TGEC_HASH_MCAST_SHIFT 23 #define TGEC_HASH_MCAST_EN 0x00000200 #define TGEC_HASH_ADR_MSK 0x000001ff #define DEFAULT_TX_IPG_LENGTH 12 #define DEFAULT_MAX_FRAME_LENGTH 0x600 #define DEFAULT_PAUSE_QUANT 0xf000 /* number of pattern match registers (entries) */ #define TGEC_NUM_OF_PADDRS 1 /* Group address bit indication */ #define GROUP_ADDRESS 0x0000010000000000LL /* Hash table size (= 32 bits*8 regs) */ #define TGEC_HASH_TABLE_SIZE 512 /* tGEC memory map */ struct tgec_regs { u32 tgec_id; /* 0x000 Controller ID */ u32 reserved001[1]; /* 0x004 */ u32 command_config; /* 0x008 Control and configuration */ u32 mac_addr_0; /* 0x00c Lower 32 bits of the MAC adr */ u32 mac_addr_1; /* 0x010 Upper 16 bits of the MAC adr */ u32 maxfrm; /* 0x014 Maximum frame length */ u32 pause_quant; /* 0x018 Pause quanta */ u32 rx_fifo_sections; /* 0x01c */ u32 tx_fifo_sections; /* 0x020 */ u32 rx_fifo_almost_f_e; /* 0x024 */ u32 tx_fifo_almost_f_e; /* 0x028 */ u32 hashtable_ctrl; /* 0x02c Hash table control */ u32 mdio_cfg_status; /* 0x030 */ u32 mdio_command; /* 0x034 */ u32 mdio_data; /* 0x038 */ u32 mdio_regaddr; /* 0x03c */ u32 status; /* 0x040 */ u32 tx_ipg_len; /* 0x044 Transmitter inter-packet-gap */ u32 mac_addr_2; /* 0x048 Lower 32 bits of 2nd MAC adr */ u32 mac_addr_3; /* 0x04c Upper 16 bits of 2nd MAC adr */ u32 rx_fifo_ptr_rd; /* 0x050 */ u32 rx_fifo_ptr_wr; /* 0x054 */ u32 tx_fifo_ptr_rd; /* 0x058 */ u32 tx_fifo_ptr_wr; /* 0x05c */ u32 imask; /* 0x060 Interrupt mask */ u32 ievent; /* 0x064 Interrupt event */ u32 udp_port; /* 0x068 Defines a UDP Port number */ u32 type_1588v2; /* 0x06c Type field for 1588v2 */ u32 reserved070[4]; /* 0x070 */ /* 10Ge Statistics Counter */ u32 tfrm_u; /* 80 aFramesTransmittedOK */ u32 tfrm_l; /* 84 aFramesTransmittedOK */ u32 rfrm_u; /* 88 aFramesReceivedOK */ u32 rfrm_l; /* 8c aFramesReceivedOK */ u32 rfcs_u; /* 90 aFrameCheckSequenceErrors */ u32 rfcs_l; /* 94 aFrameCheckSequenceErrors */ u32 raln_u; /* 98 aAlignmentErrors */ u32 raln_l; /* 9c aAlignmentErrors */ u32 txpf_u; /* A0 aPAUSEMACCtrlFramesTransmitted */ u32 txpf_l; /* A4 aPAUSEMACCtrlFramesTransmitted */ u32 rxpf_u; /* A8 aPAUSEMACCtrlFramesReceived */ u32 rxpf_l; /* Ac aPAUSEMACCtrlFramesReceived */ u32 rlong_u; /* B0 aFrameTooLongErrors */ u32 rlong_l; /* B4 aFrameTooLongErrors */ u32 rflr_u; /* B8 aInRangeLengthErrors */ u32 rflr_l; /* Bc aInRangeLengthErrors */ u32 tvlan_u; /* C0 VLANTransmittedOK */ u32 tvlan_l; /* C4 VLANTransmittedOK */ u32 rvlan_u; /* C8 VLANReceivedOK */ u32 rvlan_l; /* Cc VLANReceivedOK */ u32 toct_u; /* D0 if_out_octets */ u32 toct_l; /* D4 if_out_octets */ u32 roct_u; /* D8 if_in_octets */ u32 roct_l; /* Dc if_in_octets */ u32 ruca_u; /* E0 if_in_ucast_pkts */ u32 ruca_l; /* E4 if_in_ucast_pkts */ u32 rmca_u; /* E8 ifInMulticastPkts */ u32 rmca_l; /* Ec ifInMulticastPkts */ u32 rbca_u; /* F0 ifInBroadcastPkts */ u32 rbca_l; /* F4 ifInBroadcastPkts */ u32 terr_u; /* F8 if_out_errors */ u32 terr_l; /* Fc if_out_errors */ u32 reserved100[2]; /* 100-108 */ u32 tuca_u; /* 108 if_out_ucast_pkts */ u32 tuca_l; /* 10c if_out_ucast_pkts */ u32 tmca_u; /* 110 ifOutMulticastPkts */ u32 tmca_l; /* 114 ifOutMulticastPkts */ u32 tbca_u; /* 118 ifOutBroadcastPkts */ u32 tbca_l; /* 11c ifOutBroadcastPkts */ u32 rdrp_u; /* 120 etherStatsDropEvents */ u32 rdrp_l; /* 124 etherStatsDropEvents */ u32 reoct_u; /* 128 etherStatsOctets */ u32 reoct_l; /* 12c etherStatsOctets */ u32 rpkt_u; /* 130 etherStatsPkts */ u32 rpkt_l; /* 134 etherStatsPkts */ u32 trund_u; /* 138 etherStatsUndersizePkts */ u32 trund_l; /* 13c etherStatsUndersizePkts */ u32 r64_u; /* 140 etherStatsPkts64Octets */ u32 r64_l; /* 144 etherStatsPkts64Octets */ u32 r127_u; /* 148 etherStatsPkts65to127Octets */ u32 r127_l; /* 14c etherStatsPkts65to127Octets */ u32 r255_u; /* 150 etherStatsPkts128to255Octets */ u32 r255_l; /* 154 etherStatsPkts128to255Octets */ u32 r511_u; /* 158 etherStatsPkts256to511Octets */ u32 r511_l; /* 15c etherStatsPkts256to511Octets */ u32 r1023_u; /* 160 etherStatsPkts512to1023Octets */ u32 r1023_l; /* 164 etherStatsPkts512to1023Octets */ u32 r1518_u; /* 168 etherStatsPkts1024to1518Octets */ u32 r1518_l; /* 16c etherStatsPkts1024to1518Octets */ u32 r1519x_u; /* 170 etherStatsPkts1519toX */ u32 r1519x_l; /* 174 etherStatsPkts1519toX */ u32 trovr_u; /* 178 etherStatsOversizePkts */ u32 trovr_l; /* 17c etherStatsOversizePkts */ u32 trjbr_u; /* 180 etherStatsJabbers */ u32 trjbr_l; /* 184 etherStatsJabbers */ u32 trfrg_u; /* 188 etherStatsFragments */ u32 trfrg_l; /* 18C etherStatsFragments */ u32 rerr_u; /* 190 if_in_errors */ u32 rerr_l; /* 194 if_in_errors */ }; struct tgec_cfg { bool pause_ignore; bool promiscuous_mode_enable; u16 max_frame_length; u16 pause_quant; u32 tx_ipg_length; }; struct fman_mac { /* Pointer to the memory mapped registers. */ struct tgec_regs __iomem *regs; /* MAC address of device; */ u64 addr; u16 max_speed; void *dev_id; /* device cookie used by the exception cbs */ fman_mac_exception_cb *exception_cb; fman_mac_exception_cb *event_cb; /* pointer to driver's global address hash table */ struct eth_hash_t *multicast_addr_hash; /* pointer to driver's individual address hash table */ struct eth_hash_t *unicast_addr_hash; u8 mac_id; u32 exceptions; struct tgec_cfg *cfg; void *fm; struct fman_rev_info fm_rev_info; bool allmulti_enabled; }; static void set_mac_address(struct tgec_regs __iomem *regs, u8 *adr) { u32 tmp0, tmp1; tmp0 = (u32)(adr[0] | adr[1] << 8 | adr[2] << 16 | adr[3] << 24); tmp1 = (u32)(adr[4] | adr[5] << 8); iowrite32be(tmp0, ®s->mac_addr_0); iowrite32be(tmp1, ®s->mac_addr_1); } static void set_dflts(struct tgec_cfg *cfg) { cfg->promiscuous_mode_enable = false; cfg->pause_ignore = false; cfg->tx_ipg_length = DEFAULT_TX_IPG_LENGTH; cfg->max_frame_length = DEFAULT_MAX_FRAME_LENGTH; cfg->pause_quant = DEFAULT_PAUSE_QUANT; } static int init(struct tgec_regs __iomem *regs, struct tgec_cfg *cfg, u32 exception_mask) { u32 tmp; /* Config */ tmp = CMF_CFG_CRC_FWD; if (cfg->promiscuous_mode_enable) tmp |= CMD_CFG_PROMIS_EN; if (cfg->pause_ignore) tmp |= CMD_CFG_PAUSE_IGNORE; /* Payload length check disable */ tmp |= CMD_CFG_NO_LEN_CHK; iowrite32be(tmp, ®s->command_config); /* Max Frame Length */ iowrite32be((u32)cfg->max_frame_length, ®s->maxfrm); /* Pause Time */ iowrite32be(cfg->pause_quant, ®s->pause_quant); /* clear all pending events and set-up interrupts */ iowrite32be(0xffffffff, ®s->ievent); iowrite32be(ioread32be(®s->imask) | exception_mask, ®s->imask); return 0; } static int check_init_parameters(struct fman_mac *tgec) { if (tgec->max_speed < SPEED_10000) { pr_err("10G MAC driver only support 10G speed\n"); return -EINVAL; } if (tgec->addr == 0) { pr_err("Ethernet 10G MAC Must have valid MAC Address\n"); return -EINVAL; } if (!tgec->exception_cb) { pr_err("uninitialized exception_cb\n"); return -EINVAL; } if (!tgec->event_cb) { pr_err("uninitialized event_cb\n"); return -EINVAL; } return 0; } static int get_exception_flag(enum fman_mac_exceptions exception) { u32 bit_mask; switch (exception) { case FM_MAC_EX_10G_MDIO_SCAN_EVENT: bit_mask = TGEC_IMASK_MDIO_SCAN_EVENT; break; case FM_MAC_EX_10G_MDIO_CMD_CMPL: bit_mask = TGEC_IMASK_MDIO_CMD_CMPL; break; case FM_MAC_EX_10G_REM_FAULT: bit_mask = TGEC_IMASK_REM_FAULT; break; case FM_MAC_EX_10G_LOC_FAULT: bit_mask = TGEC_IMASK_LOC_FAULT; break; case FM_MAC_EX_10G_TX_ECC_ER: bit_mask = TGEC_IMASK_TX_ECC_ER; break; case FM_MAC_EX_10G_TX_FIFO_UNFL: bit_mask = TGEC_IMASK_TX_FIFO_UNFL; break; case FM_MAC_EX_10G_TX_FIFO_OVFL: bit_mask = TGEC_IMASK_TX_FIFO_OVFL; break; case FM_MAC_EX_10G_TX_ER: bit_mask = TGEC_IMASK_TX_ER; break; case FM_MAC_EX_10G_RX_FIFO_OVFL: bit_mask = TGEC_IMASK_RX_FIFO_OVFL; break; case FM_MAC_EX_10G_RX_ECC_ER: bit_mask = TGEC_IMASK_RX_ECC_ER; break; case FM_MAC_EX_10G_RX_JAB_FRM: bit_mask = TGEC_IMASK_RX_JAB_FRM; break; case FM_MAC_EX_10G_RX_OVRSZ_FRM: bit_mask = TGEC_IMASK_RX_OVRSZ_FRM; break; case FM_MAC_EX_10G_RX_RUNT_FRM: bit_mask = TGEC_IMASK_RX_RUNT_FRM; break; case FM_MAC_EX_10G_RX_FRAG_FRM: bit_mask = TGEC_IMASK_RX_FRAG_FRM; break; case FM_MAC_EX_10G_RX_LEN_ER: bit_mask = TGEC_IMASK_RX_LEN_ER; break; case FM_MAC_EX_10G_RX_CRC_ER: bit_mask = TGEC_IMASK_RX_CRC_ER; break; case FM_MAC_EX_10G_RX_ALIGN_ER: bit_mask = TGEC_IMASK_RX_ALIGN_ER; break; default: bit_mask = 0; break; } return bit_mask; } static void tgec_err_exception(void *handle) { struct fman_mac *tgec = (struct fman_mac *)handle; struct tgec_regs __iomem *regs = tgec->regs; u32 event; /* do not handle MDIO events */ event = ioread32be(®s->ievent) & ~(TGEC_IMASK_MDIO_SCAN_EVENT | TGEC_IMASK_MDIO_CMD_CMPL); event &= ioread32be(®s->imask); iowrite32be(event, ®s->ievent); if (event & TGEC_IMASK_REM_FAULT) tgec->exception_cb(tgec->dev_id, FM_MAC_EX_10G_REM_FAULT); if (event & TGEC_IMASK_LOC_FAULT) tgec->exception_cb(tgec->dev_id, FM_MAC_EX_10G_LOC_FAULT); if (event & TGEC_IMASK_TX_ECC_ER) tgec->exception_cb(tgec->dev_id, FM_MAC_EX_10G_TX_ECC_ER); if (event & TGEC_IMASK_TX_FIFO_UNFL) tgec->exception_cb(tgec->dev_id, FM_MAC_EX_10G_TX_FIFO_UNFL); if (event & TGEC_IMASK_TX_FIFO_OVFL) tgec->exception_cb(tgec->dev_id, FM_MAC_EX_10G_TX_FIFO_OVFL); if (event & TGEC_IMASK_TX_ER) tgec->exception_cb(tgec->dev_id, FM_MAC_EX_10G_TX_ER); if (event & TGEC_IMASK_RX_FIFO_OVFL) tgec->exception_cb(tgec->dev_id, FM_MAC_EX_10G_RX_FIFO_OVFL); if (event & TGEC_IMASK_RX_ECC_ER) tgec->exception_cb(tgec->dev_id, FM_MAC_EX_10G_RX_ECC_ER); if (event & TGEC_IMASK_RX_JAB_FRM) tgec->exception_cb(tgec->dev_id, FM_MAC_EX_10G_RX_JAB_FRM); if (event & TGEC_IMASK_RX_OVRSZ_FRM) tgec->exception_cb(tgec->dev_id, FM_MAC_EX_10G_RX_OVRSZ_FRM); if (event & TGEC_IMASK_RX_RUNT_FRM) tgec->exception_cb(tgec->dev_id, FM_MAC_EX_10G_RX_RUNT_FRM); if (event & TGEC_IMASK_RX_FRAG_FRM) tgec->exception_cb(tgec->dev_id, FM_MAC_EX_10G_RX_FRAG_FRM); if (event & TGEC_IMASK_RX_LEN_ER) tgec->exception_cb(tgec->dev_id, FM_MAC_EX_10G_RX_LEN_ER); if (event & TGEC_IMASK_RX_CRC_ER) tgec->exception_cb(tgec->dev_id, FM_MAC_EX_10G_RX_CRC_ER); if (event & TGEC_IMASK_RX_ALIGN_ER) tgec->exception_cb(tgec->dev_id, FM_MAC_EX_10G_RX_ALIGN_ER); } static void free_init_resources(struct fman_mac *tgec) { fman_unregister_intr(tgec->fm, FMAN_MOD_MAC, tgec->mac_id, FMAN_INTR_TYPE_ERR); /* release the driver's group hash table */ free_hash_table(tgec->multicast_addr_hash); tgec->multicast_addr_hash = NULL; /* release the driver's individual hash table */ free_hash_table(tgec->unicast_addr_hash); tgec->unicast_addr_hash = NULL; } static bool is_init_done(struct tgec_cfg *cfg) { /* Checks if tGEC driver parameters were initialized */ if (!cfg) return true; return false; } int tgec_enable(struct fman_mac *tgec, enum comm_mode mode) { struct tgec_regs __iomem *regs = tgec->regs; u32 tmp; if (!is_init_done(tgec->cfg)) return -EINVAL; tmp = ioread32be(®s->command_config); if (mode & COMM_MODE_RX) tmp |= CMD_CFG_RX_EN; if (mode & COMM_MODE_TX) tmp |= CMD_CFG_TX_EN; iowrite32be(tmp, ®s->command_config); return 0; } int tgec_disable(struct fman_mac *tgec, enum comm_mode mode) { struct tgec_regs __iomem *regs = tgec->regs; u32 tmp; if (!is_init_done(tgec->cfg)) return -EINVAL; tmp = ioread32be(®s->command_config); if (mode & COMM_MODE_RX) tmp &= ~CMD_CFG_RX_EN; if (mode & COMM_MODE_TX) tmp &= ~CMD_CFG_TX_EN; iowrite32be(tmp, ®s->command_config); return 0; } int tgec_set_promiscuous(struct fman_mac *tgec, bool new_val) { struct tgec_regs __iomem *regs = tgec->regs; u32 tmp; if (!is_init_done(tgec->cfg)) return -EINVAL; tmp = ioread32be(®s->command_config); if (new_val) tmp |= CMD_CFG_PROMIS_EN; else tmp &= ~CMD_CFG_PROMIS_EN; iowrite32be(tmp, ®s->command_config); return 0; } int tgec_cfg_max_frame_len(struct fman_mac *tgec, u16 new_val) { if (is_init_done(tgec->cfg)) return -EINVAL; tgec->cfg->max_frame_length = new_val; return 0; } int tgec_set_tx_pause_frames(struct fman_mac *tgec, u8 __maybe_unused priority, u16 pause_time, u16 __maybe_unused thresh_time) { struct tgec_regs __iomem *regs = tgec->regs; if (!is_init_done(tgec->cfg)) return -EINVAL; iowrite32be((u32)pause_time, ®s->pause_quant); return 0; } int tgec_accept_rx_pause_frames(struct fman_mac *tgec, bool en) { struct tgec_regs __iomem *regs = tgec->regs; u32 tmp; if (!is_init_done(tgec->cfg)) return -EINVAL; tmp = ioread32be(®s->command_config); if (!en) tmp |= CMD_CFG_PAUSE_IGNORE; else tmp &= ~CMD_CFG_PAUSE_IGNORE; iowrite32be(tmp, ®s->command_config); return 0; } int tgec_modify_mac_address(struct fman_mac *tgec, enet_addr_t *p_enet_addr) { if (!is_init_done(tgec->cfg)) return -EINVAL; tgec->addr = ENET_ADDR_TO_UINT64(*p_enet_addr); set_mac_address(tgec->regs, (u8 *)(*p_enet_addr)); return 0; } int tgec_add_hash_mac_address(struct fman_mac *tgec, enet_addr_t *eth_addr) { struct tgec_regs __iomem *regs = tgec->regs; struct eth_hash_entry *hash_entry; u32 crc = 0xFFFFFFFF, hash; u64 addr; if (!is_init_done(tgec->cfg)) return -EINVAL; addr = ENET_ADDR_TO_UINT64(*eth_addr); if (!(addr & GROUP_ADDRESS)) { /* Unicast addresses not supported in hash */ pr_err("Unicast Address\n"); return -EINVAL; } /* CRC calculation */ crc = crc32_le(crc, (u8 *)eth_addr, ETH_ALEN); crc = bitrev32(crc); /* Take 9 MSB bits */ hash = (crc >> TGEC_HASH_MCAST_SHIFT) & TGEC_HASH_ADR_MSK; /* Create element to be added to the driver hash table */ hash_entry = kmalloc(sizeof(*hash_entry), GFP_ATOMIC); if (!hash_entry) return -ENOMEM; hash_entry->addr = addr; INIT_LIST_HEAD(&hash_entry->node); list_add_tail(&hash_entry->node, &tgec->multicast_addr_hash->lsts[hash]); iowrite32be((hash | TGEC_HASH_MCAST_EN), ®s->hashtable_ctrl); return 0; } int tgec_set_allmulti(struct fman_mac *tgec, bool enable) { u32 entry; struct tgec_regs __iomem *regs = tgec->regs; if (!is_init_done(tgec->cfg)) return -EINVAL; if (enable) { for (entry = 0; entry < TGEC_HASH_TABLE_SIZE; entry++) iowrite32be(entry | TGEC_HASH_MCAST_EN, ®s->hashtable_ctrl); } else { for (entry = 0; entry < TGEC_HASH_TABLE_SIZE; entry++) iowrite32be(entry & ~TGEC_HASH_MCAST_EN, ®s->hashtable_ctrl); } tgec->allmulti_enabled = enable; return 0; } int tgec_set_tstamp(struct fman_mac *tgec, bool enable) { struct tgec_regs __iomem *regs = tgec->regs; u32 tmp; if (!is_init_done(tgec->cfg)) return -EINVAL; tmp = ioread32be(®s->command_config); if (enable) tmp |= CMD_CFG_EN_TIMESTAMP; else tmp &= ~CMD_CFG_EN_TIMESTAMP; iowrite32be(tmp, ®s->command_config); return 0; } int tgec_del_hash_mac_address(struct fman_mac *tgec, enet_addr_t *eth_addr) { struct tgec_regs __iomem *regs = tgec->regs; struct eth_hash_entry *hash_entry = NULL; struct list_head *pos; u32 crc = 0xFFFFFFFF, hash; u64 addr; if (!is_init_done(tgec->cfg)) return -EINVAL; addr = ((*(u64 *)eth_addr) >> 16); /* CRC calculation */ crc = crc32_le(crc, (u8 *)eth_addr, ETH_ALEN); crc = bitrev32(crc); /* Take 9 MSB bits */ hash = (crc >> TGEC_HASH_MCAST_SHIFT) & TGEC_HASH_ADR_MSK; list_for_each(pos, &tgec->multicast_addr_hash->lsts[hash]) { hash_entry = ETH_HASH_ENTRY_OBJ(pos); if (hash_entry->addr == addr) { list_del_init(&hash_entry->node); kfree(hash_entry); break; } } if (!tgec->allmulti_enabled) { if (list_empty(&tgec->multicast_addr_hash->lsts[hash])) iowrite32be((hash & ~TGEC_HASH_MCAST_EN), ®s->hashtable_ctrl); } return 0; } int tgec_get_version(struct fman_mac *tgec, u32 *mac_version) { struct tgec_regs __iomem *regs = tgec->regs; if (!is_init_done(tgec->cfg)) return -EINVAL; *mac_version = ioread32be(®s->tgec_id); return 0; } int tgec_set_exception(struct fman_mac *tgec, enum fman_mac_exceptions exception, bool enable) { struct tgec_regs __iomem *regs = tgec->regs; u32 bit_mask = 0; if (!is_init_done(tgec->cfg)) return -EINVAL; bit_mask = get_exception_flag(exception); if (bit_mask) { if (enable) tgec->exceptions |= bit_mask; else tgec->exceptions &= ~bit_mask; } else { pr_err("Undefined exception\n"); return -EINVAL; } if (enable) iowrite32be(ioread32be(®s->imask) | bit_mask, ®s->imask); else iowrite32be(ioread32be(®s->imask) & ~bit_mask, ®s->imask); return 0; } int tgec_init(struct fman_mac *tgec) { struct tgec_cfg *cfg; enet_addr_t eth_addr; int err; if (is_init_done(tgec->cfg)) return -EINVAL; if (DEFAULT_RESET_ON_INIT && (fman_reset_mac(tgec->fm, tgec->mac_id) != 0)) { pr_err("Can't reset MAC!\n"); return -EINVAL; } err = check_init_parameters(tgec); if (err) return err; cfg = tgec->cfg; MAKE_ENET_ADDR_FROM_UINT64(tgec->addr, eth_addr); set_mac_address(tgec->regs, (u8 *)eth_addr); /* interrupts */ /* FM_10G_REM_N_LCL_FLT_EX_10GMAC_ERRATA_SW005 Errata workaround */ if (tgec->fm_rev_info.major <= 2) tgec->exceptions &= ~(TGEC_IMASK_REM_FAULT | TGEC_IMASK_LOC_FAULT); err = init(tgec->regs, cfg, tgec->exceptions); if (err) { free_init_resources(tgec); pr_err("TGEC version doesn't support this i/f mode\n"); return err; } /* Max Frame Length */ err = fman_set_mac_max_frame(tgec->fm, tgec->mac_id, cfg->max_frame_length); if (err) { pr_err("Setting max frame length FAILED\n"); free_init_resources(tgec); return -EINVAL; } /* FM_TX_FIFO_CORRUPTION_ERRATA_10GMAC_A007 Errata workaround */ if (tgec->fm_rev_info.major == 2) { struct tgec_regs __iomem *regs = tgec->regs; u32 tmp; /* restore the default tx ipg Length */ tmp = (ioread32be(®s->tx_ipg_len) & ~TGEC_TX_IPG_LENGTH_MASK) | 12; iowrite32be(tmp, ®s->tx_ipg_len); } tgec->multicast_addr_hash = alloc_hash_table(TGEC_HASH_TABLE_SIZE); if (!tgec->multicast_addr_hash) { free_init_resources(tgec); pr_err("allocation hash table is FAILED\n"); return -ENOMEM; } tgec->unicast_addr_hash = alloc_hash_table(TGEC_HASH_TABLE_SIZE); if (!tgec->unicast_addr_hash) { free_init_resources(tgec); pr_err("allocation hash table is FAILED\n"); return -ENOMEM; } fman_register_intr(tgec->fm, FMAN_MOD_MAC, tgec->mac_id, FMAN_INTR_TYPE_ERR, tgec_err_exception, tgec); kfree(cfg); tgec->cfg = NULL; return 0; } int tgec_free(struct fman_mac *tgec) { free_init_resources(tgec); kfree(tgec->cfg); kfree(tgec); return 0; } struct fman_mac *tgec_config(struct fman_mac_params *params) { struct fman_mac *tgec; struct tgec_cfg *cfg; void __iomem *base_addr; base_addr = params->base_addr; /* allocate memory for the UCC GETH data structure. */ tgec = kzalloc(sizeof(*tgec), GFP_KERNEL); if (!tgec) return NULL; /* allocate memory for the 10G MAC driver parameters data structure. */ cfg = kzalloc(sizeof(*cfg), GFP_KERNEL); if (!cfg) { tgec_free(tgec); return NULL; } /* Plant parameter structure pointer */ tgec->cfg = cfg; set_dflts(cfg); tgec->regs = base_addr; tgec->addr = ENET_ADDR_TO_UINT64(params->addr); tgec->max_speed = params->max_speed; tgec->mac_id = params->mac_id; tgec->exceptions = (TGEC_IMASK_MDIO_SCAN_EVENT | TGEC_IMASK_REM_FAULT | TGEC_IMASK_LOC_FAULT | TGEC_IMASK_TX_ECC_ER | TGEC_IMASK_TX_FIFO_UNFL | TGEC_IMASK_TX_FIFO_OVFL | TGEC_IMASK_TX_ER | TGEC_IMASK_RX_FIFO_OVFL | TGEC_IMASK_RX_ECC_ER | TGEC_IMASK_RX_JAB_FRM | TGEC_IMASK_RX_OVRSZ_FRM | TGEC_IMASK_RX_RUNT_FRM | TGEC_IMASK_RX_FRAG_FRM | TGEC_IMASK_RX_CRC_ER | TGEC_IMASK_RX_ALIGN_ER); tgec->exception_cb = params->exception_cb; tgec->event_cb = params->event_cb; tgec->dev_id = params->dev_id; tgec->fm = params->fm; /* Save FMan revision */ fman_get_revision(tgec->fm, &tgec->fm_rev_info); return tgec; }