2048 строки
52 KiB
C
2048 строки
52 KiB
C
// SPDX-License-Identifier: (GPL-2.0 or MIT)
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/*
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* DSA driver for:
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* Hirschmann Hellcreek TSN switch.
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*
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* Copyright (C) 2019-2021 Linutronix GmbH
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* Author Kurt Kanzenbach <kurt@linutronix.de>
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/device.h>
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#include <linux/of.h>
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#include <linux/of_device.h>
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#include <linux/of_mdio.h>
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#include <linux/platform_device.h>
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#include <linux/bitops.h>
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#include <linux/if_bridge.h>
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#include <linux/if_vlan.h>
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#include <linux/etherdevice.h>
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#include <linux/random.h>
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#include <linux/iopoll.h>
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#include <linux/mutex.h>
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#include <linux/delay.h>
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#include <net/dsa.h>
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#include "hellcreek.h"
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#include "hellcreek_ptp.h"
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#include "hellcreek_hwtstamp.h"
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static const struct hellcreek_counter hellcreek_counter[] = {
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{ 0x00, "RxFiltered", },
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{ 0x01, "RxOctets1k", },
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{ 0x02, "RxVTAG", },
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{ 0x03, "RxL2BAD", },
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{ 0x04, "RxOverloadDrop", },
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{ 0x05, "RxUC", },
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{ 0x06, "RxMC", },
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{ 0x07, "RxBC", },
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{ 0x08, "RxRS<64", },
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{ 0x09, "RxRS64", },
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{ 0x0a, "RxRS65_127", },
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{ 0x0b, "RxRS128_255", },
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{ 0x0c, "RxRS256_511", },
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{ 0x0d, "RxRS512_1023", },
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{ 0x0e, "RxRS1024_1518", },
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{ 0x0f, "RxRS>1518", },
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{ 0x10, "TxTailDropQueue0", },
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{ 0x11, "TxTailDropQueue1", },
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{ 0x12, "TxTailDropQueue2", },
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{ 0x13, "TxTailDropQueue3", },
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{ 0x14, "TxTailDropQueue4", },
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{ 0x15, "TxTailDropQueue5", },
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{ 0x16, "TxTailDropQueue6", },
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{ 0x17, "TxTailDropQueue7", },
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{ 0x18, "RxTrafficClass0", },
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{ 0x19, "RxTrafficClass1", },
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{ 0x1a, "RxTrafficClass2", },
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{ 0x1b, "RxTrafficClass3", },
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{ 0x1c, "RxTrafficClass4", },
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{ 0x1d, "RxTrafficClass5", },
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{ 0x1e, "RxTrafficClass6", },
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{ 0x1f, "RxTrafficClass7", },
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{ 0x21, "TxOctets1k", },
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{ 0x22, "TxVTAG", },
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{ 0x23, "TxL2BAD", },
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{ 0x25, "TxUC", },
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{ 0x26, "TxMC", },
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{ 0x27, "TxBC", },
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{ 0x28, "TxTS<64", },
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{ 0x29, "TxTS64", },
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{ 0x2a, "TxTS65_127", },
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{ 0x2b, "TxTS128_255", },
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{ 0x2c, "TxTS256_511", },
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{ 0x2d, "TxTS512_1023", },
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{ 0x2e, "TxTS1024_1518", },
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{ 0x2f, "TxTS>1518", },
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{ 0x30, "TxTrafficClassOverrun0", },
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{ 0x31, "TxTrafficClassOverrun1", },
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{ 0x32, "TxTrafficClassOverrun2", },
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{ 0x33, "TxTrafficClassOverrun3", },
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{ 0x34, "TxTrafficClassOverrun4", },
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{ 0x35, "TxTrafficClassOverrun5", },
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{ 0x36, "TxTrafficClassOverrun6", },
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{ 0x37, "TxTrafficClassOverrun7", },
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{ 0x38, "TxTrafficClass0", },
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{ 0x39, "TxTrafficClass1", },
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{ 0x3a, "TxTrafficClass2", },
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{ 0x3b, "TxTrafficClass3", },
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{ 0x3c, "TxTrafficClass4", },
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{ 0x3d, "TxTrafficClass5", },
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{ 0x3e, "TxTrafficClass6", },
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{ 0x3f, "TxTrafficClass7", },
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};
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static u16 hellcreek_read(struct hellcreek *hellcreek, unsigned int offset)
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{
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return readw(hellcreek->base + offset);
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}
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static u16 hellcreek_read_ctrl(struct hellcreek *hellcreek)
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{
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return readw(hellcreek->base + HR_CTRL_C);
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}
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static u16 hellcreek_read_stat(struct hellcreek *hellcreek)
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{
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return readw(hellcreek->base + HR_SWSTAT);
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}
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static void hellcreek_write(struct hellcreek *hellcreek, u16 data,
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unsigned int offset)
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{
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writew(data, hellcreek->base + offset);
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}
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static void hellcreek_select_port(struct hellcreek *hellcreek, int port)
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{
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u16 val = port << HR_PSEL_PTWSEL_SHIFT;
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hellcreek_write(hellcreek, val, HR_PSEL);
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}
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static void hellcreek_select_prio(struct hellcreek *hellcreek, int prio)
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{
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u16 val = prio << HR_PSEL_PRTCWSEL_SHIFT;
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hellcreek_write(hellcreek, val, HR_PSEL);
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}
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static void hellcreek_select_counter(struct hellcreek *hellcreek, int counter)
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{
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u16 val = counter << HR_CSEL_SHIFT;
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hellcreek_write(hellcreek, val, HR_CSEL);
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/* Data sheet states to wait at least 20 internal clock cycles */
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ndelay(200);
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}
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static void hellcreek_select_vlan(struct hellcreek *hellcreek, int vid,
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bool pvid)
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{
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u16 val = 0;
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/* Set pvid bit first */
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if (pvid)
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val |= HR_VIDCFG_PVID;
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hellcreek_write(hellcreek, val, HR_VIDCFG);
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/* Set vlan */
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val |= vid << HR_VIDCFG_VID_SHIFT;
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hellcreek_write(hellcreek, val, HR_VIDCFG);
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}
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static void hellcreek_select_tgd(struct hellcreek *hellcreek, int port)
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{
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u16 val = port << TR_TGDSEL_TDGSEL_SHIFT;
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hellcreek_write(hellcreek, val, TR_TGDSEL);
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}
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static int hellcreek_wait_until_ready(struct hellcreek *hellcreek)
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{
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u16 val;
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/* Wait up to 1ms, although 3 us should be enough */
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return readx_poll_timeout(hellcreek_read_ctrl, hellcreek,
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val, val & HR_CTRL_C_READY,
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3, 1000);
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}
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static int hellcreek_wait_until_transitioned(struct hellcreek *hellcreek)
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{
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u16 val;
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return readx_poll_timeout_atomic(hellcreek_read_ctrl, hellcreek,
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val, !(val & HR_CTRL_C_TRANSITION),
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1, 1000);
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}
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static int hellcreek_wait_fdb_ready(struct hellcreek *hellcreek)
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{
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u16 val;
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return readx_poll_timeout_atomic(hellcreek_read_stat, hellcreek,
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val, !(val & HR_SWSTAT_BUSY),
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1, 1000);
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}
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static int hellcreek_detect(struct hellcreek *hellcreek)
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{
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u16 id, rel_low, rel_high, date_low, date_high, tgd_ver;
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u8 tgd_maj, tgd_min;
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u32 rel, date;
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id = hellcreek_read(hellcreek, HR_MODID_C);
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rel_low = hellcreek_read(hellcreek, HR_REL_L_C);
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rel_high = hellcreek_read(hellcreek, HR_REL_H_C);
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date_low = hellcreek_read(hellcreek, HR_BLD_L_C);
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date_high = hellcreek_read(hellcreek, HR_BLD_H_C);
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tgd_ver = hellcreek_read(hellcreek, TR_TGDVER);
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if (id != hellcreek->pdata->module_id)
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return -ENODEV;
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rel = rel_low | (rel_high << 16);
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date = date_low | (date_high << 16);
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tgd_maj = (tgd_ver & TR_TGDVER_REV_MAJ_MASK) >> TR_TGDVER_REV_MAJ_SHIFT;
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tgd_min = (tgd_ver & TR_TGDVER_REV_MIN_MASK) >> TR_TGDVER_REV_MIN_SHIFT;
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dev_info(hellcreek->dev, "Module ID=%02x Release=%04x Date=%04x TGD Version=%02x.%02x\n",
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id, rel, date, tgd_maj, tgd_min);
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return 0;
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}
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static void hellcreek_feature_detect(struct hellcreek *hellcreek)
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{
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u16 features;
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features = hellcreek_read(hellcreek, HR_FEABITS0);
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/* Only detect the size of the FDB table. The size and current
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* utilization can be queried via devlink.
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*/
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hellcreek->fdb_entries = ((features & HR_FEABITS0_FDBBINS_MASK) >>
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HR_FEABITS0_FDBBINS_SHIFT) * 32;
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}
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static enum dsa_tag_protocol hellcreek_get_tag_protocol(struct dsa_switch *ds,
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int port,
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enum dsa_tag_protocol mp)
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{
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return DSA_TAG_PROTO_HELLCREEK;
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}
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static int hellcreek_port_enable(struct dsa_switch *ds, int port,
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struct phy_device *phy)
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{
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struct hellcreek *hellcreek = ds->priv;
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struct hellcreek_port *hellcreek_port;
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u16 val;
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hellcreek_port = &hellcreek->ports[port];
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dev_dbg(hellcreek->dev, "Enable port %d\n", port);
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mutex_lock(&hellcreek->reg_lock);
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hellcreek_select_port(hellcreek, port);
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val = hellcreek_port->ptcfg;
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val |= HR_PTCFG_ADMIN_EN;
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hellcreek_write(hellcreek, val, HR_PTCFG);
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hellcreek_port->ptcfg = val;
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mutex_unlock(&hellcreek->reg_lock);
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return 0;
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}
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static void hellcreek_port_disable(struct dsa_switch *ds, int port)
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{
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struct hellcreek *hellcreek = ds->priv;
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struct hellcreek_port *hellcreek_port;
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u16 val;
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hellcreek_port = &hellcreek->ports[port];
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dev_dbg(hellcreek->dev, "Disable port %d\n", port);
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mutex_lock(&hellcreek->reg_lock);
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hellcreek_select_port(hellcreek, port);
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val = hellcreek_port->ptcfg;
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val &= ~HR_PTCFG_ADMIN_EN;
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hellcreek_write(hellcreek, val, HR_PTCFG);
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hellcreek_port->ptcfg = val;
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mutex_unlock(&hellcreek->reg_lock);
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}
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static void hellcreek_get_strings(struct dsa_switch *ds, int port,
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u32 stringset, uint8_t *data)
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{
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int i;
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for (i = 0; i < ARRAY_SIZE(hellcreek_counter); ++i) {
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const struct hellcreek_counter *counter = &hellcreek_counter[i];
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strlcpy(data + i * ETH_GSTRING_LEN,
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counter->name, ETH_GSTRING_LEN);
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}
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}
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static int hellcreek_get_sset_count(struct dsa_switch *ds, int port, int sset)
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{
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if (sset != ETH_SS_STATS)
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return 0;
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return ARRAY_SIZE(hellcreek_counter);
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}
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static void hellcreek_get_ethtool_stats(struct dsa_switch *ds, int port,
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uint64_t *data)
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{
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struct hellcreek *hellcreek = ds->priv;
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struct hellcreek_port *hellcreek_port;
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int i;
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hellcreek_port = &hellcreek->ports[port];
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for (i = 0; i < ARRAY_SIZE(hellcreek_counter); ++i) {
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const struct hellcreek_counter *counter = &hellcreek_counter[i];
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u8 offset = counter->offset + port * 64;
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u16 high, low;
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u64 value;
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mutex_lock(&hellcreek->reg_lock);
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hellcreek_select_counter(hellcreek, offset);
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/* The registers are locked internally by selecting the
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* counter. So low and high can be read without reading high
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* again.
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*/
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high = hellcreek_read(hellcreek, HR_CRDH);
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low = hellcreek_read(hellcreek, HR_CRDL);
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value = ((u64)high << 16) | low;
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hellcreek_port->counter_values[i] += value;
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data[i] = hellcreek_port->counter_values[i];
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mutex_unlock(&hellcreek->reg_lock);
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}
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}
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static u16 hellcreek_private_vid(int port)
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{
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return VLAN_N_VID - port + 1;
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}
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static int hellcreek_vlan_prepare(struct dsa_switch *ds, int port,
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const struct switchdev_obj_port_vlan *vlan,
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struct netlink_ext_ack *extack)
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{
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struct hellcreek *hellcreek = ds->priv;
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int i;
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dev_dbg(hellcreek->dev, "VLAN prepare for port %d\n", port);
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/* Restriction: Make sure that nobody uses the "private" VLANs. These
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* VLANs are internally used by the driver to ensure port
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* separation. Thus, they cannot be used by someone else.
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*/
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for (i = 0; i < hellcreek->pdata->num_ports; ++i) {
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const u16 restricted_vid = hellcreek_private_vid(i);
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if (!dsa_is_user_port(ds, i))
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continue;
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if (vlan->vid == restricted_vid) {
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NL_SET_ERR_MSG_MOD(extack, "VID restricted by driver");
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return -EBUSY;
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}
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}
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return 0;
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}
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static void hellcreek_select_vlan_params(struct hellcreek *hellcreek, int port,
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int *shift, int *mask)
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{
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switch (port) {
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case 0:
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*shift = HR_VIDMBRCFG_P0MBR_SHIFT;
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*mask = HR_VIDMBRCFG_P0MBR_MASK;
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break;
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case 1:
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*shift = HR_VIDMBRCFG_P1MBR_SHIFT;
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*mask = HR_VIDMBRCFG_P1MBR_MASK;
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break;
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case 2:
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*shift = HR_VIDMBRCFG_P2MBR_SHIFT;
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*mask = HR_VIDMBRCFG_P2MBR_MASK;
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break;
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case 3:
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*shift = HR_VIDMBRCFG_P3MBR_SHIFT;
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*mask = HR_VIDMBRCFG_P3MBR_MASK;
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break;
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default:
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*shift = *mask = 0;
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dev_err(hellcreek->dev, "Unknown port %d selected!\n", port);
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}
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}
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static void hellcreek_apply_vlan(struct hellcreek *hellcreek, int port, u16 vid,
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bool pvid, bool untagged)
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{
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int shift, mask;
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u16 val;
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dev_dbg(hellcreek->dev, "Apply VLAN: port=%d vid=%u pvid=%d untagged=%d",
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port, vid, pvid, untagged);
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mutex_lock(&hellcreek->reg_lock);
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hellcreek_select_port(hellcreek, port);
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hellcreek_select_vlan(hellcreek, vid, pvid);
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/* Setup port vlan membership */
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hellcreek_select_vlan_params(hellcreek, port, &shift, &mask);
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val = hellcreek->vidmbrcfg[vid];
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val &= ~mask;
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if (untagged)
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val |= HELLCREEK_VLAN_UNTAGGED_MEMBER << shift;
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else
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val |= HELLCREEK_VLAN_TAGGED_MEMBER << shift;
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hellcreek_write(hellcreek, val, HR_VIDMBRCFG);
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hellcreek->vidmbrcfg[vid] = val;
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mutex_unlock(&hellcreek->reg_lock);
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}
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static void hellcreek_unapply_vlan(struct hellcreek *hellcreek, int port,
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u16 vid)
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{
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int shift, mask;
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u16 val;
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dev_dbg(hellcreek->dev, "Unapply VLAN: port=%d vid=%u\n", port, vid);
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mutex_lock(&hellcreek->reg_lock);
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hellcreek_select_vlan(hellcreek, vid, false);
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/* Setup port vlan membership */
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hellcreek_select_vlan_params(hellcreek, port, &shift, &mask);
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val = hellcreek->vidmbrcfg[vid];
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val &= ~mask;
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val |= HELLCREEK_VLAN_NO_MEMBER << shift;
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hellcreek_write(hellcreek, val, HR_VIDMBRCFG);
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hellcreek->vidmbrcfg[vid] = val;
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mutex_unlock(&hellcreek->reg_lock);
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}
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static int hellcreek_vlan_add(struct dsa_switch *ds, int port,
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const struct switchdev_obj_port_vlan *vlan,
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struct netlink_ext_ack *extack)
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{
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bool untagged = vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED;
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bool pvid = vlan->flags & BRIDGE_VLAN_INFO_PVID;
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struct hellcreek *hellcreek = ds->priv;
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int err;
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err = hellcreek_vlan_prepare(ds, port, vlan, extack);
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if (err)
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return err;
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dev_dbg(hellcreek->dev, "Add VLAN %d on port %d, %s, %s\n",
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vlan->vid, port, untagged ? "untagged" : "tagged",
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pvid ? "PVID" : "no PVID");
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hellcreek_apply_vlan(hellcreek, port, vlan->vid, pvid, untagged);
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return 0;
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}
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static int hellcreek_vlan_del(struct dsa_switch *ds, int port,
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const struct switchdev_obj_port_vlan *vlan)
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{
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struct hellcreek *hellcreek = ds->priv;
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dev_dbg(hellcreek->dev, "Remove VLAN %d on port %d\n", vlan->vid, port);
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hellcreek_unapply_vlan(hellcreek, port, vlan->vid);
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|
|
return 0;
|
|
}
|
|
|
|
static void hellcreek_port_stp_state_set(struct dsa_switch *ds, int port,
|
|
u8 state)
|
|
{
|
|
struct hellcreek *hellcreek = ds->priv;
|
|
struct hellcreek_port *hellcreek_port;
|
|
const char *new_state;
|
|
u16 val;
|
|
|
|
mutex_lock(&hellcreek->reg_lock);
|
|
|
|
hellcreek_port = &hellcreek->ports[port];
|
|
val = hellcreek_port->ptcfg;
|
|
|
|
switch (state) {
|
|
case BR_STATE_DISABLED:
|
|
new_state = "DISABLED";
|
|
val |= HR_PTCFG_BLOCKED;
|
|
val &= ~HR_PTCFG_LEARNING_EN;
|
|
break;
|
|
case BR_STATE_BLOCKING:
|
|
new_state = "BLOCKING";
|
|
val |= HR_PTCFG_BLOCKED;
|
|
val &= ~HR_PTCFG_LEARNING_EN;
|
|
break;
|
|
case BR_STATE_LISTENING:
|
|
new_state = "LISTENING";
|
|
val |= HR_PTCFG_BLOCKED;
|
|
val &= ~HR_PTCFG_LEARNING_EN;
|
|
break;
|
|
case BR_STATE_LEARNING:
|
|
new_state = "LEARNING";
|
|
val |= HR_PTCFG_BLOCKED;
|
|
val |= HR_PTCFG_LEARNING_EN;
|
|
break;
|
|
case BR_STATE_FORWARDING:
|
|
new_state = "FORWARDING";
|
|
val &= ~HR_PTCFG_BLOCKED;
|
|
val |= HR_PTCFG_LEARNING_EN;
|
|
break;
|
|
default:
|
|
new_state = "UNKNOWN";
|
|
}
|
|
|
|
hellcreek_select_port(hellcreek, port);
|
|
hellcreek_write(hellcreek, val, HR_PTCFG);
|
|
hellcreek_port->ptcfg = val;
|
|
|
|
mutex_unlock(&hellcreek->reg_lock);
|
|
|
|
dev_dbg(hellcreek->dev, "Configured STP state for port %d: %s\n",
|
|
port, new_state);
|
|
}
|
|
|
|
static void hellcreek_setup_ingressflt(struct hellcreek *hellcreek, int port,
|
|
bool enable)
|
|
{
|
|
struct hellcreek_port *hellcreek_port = &hellcreek->ports[port];
|
|
u16 ptcfg;
|
|
|
|
mutex_lock(&hellcreek->reg_lock);
|
|
|
|
ptcfg = hellcreek_port->ptcfg;
|
|
|
|
if (enable)
|
|
ptcfg |= HR_PTCFG_INGRESSFLT;
|
|
else
|
|
ptcfg &= ~HR_PTCFG_INGRESSFLT;
|
|
|
|
hellcreek_select_port(hellcreek, port);
|
|
hellcreek_write(hellcreek, ptcfg, HR_PTCFG);
|
|
hellcreek_port->ptcfg = ptcfg;
|
|
|
|
mutex_unlock(&hellcreek->reg_lock);
|
|
}
|
|
|
|
static void hellcreek_setup_vlan_awareness(struct hellcreek *hellcreek,
|
|
bool enable)
|
|
{
|
|
u16 swcfg;
|
|
|
|
mutex_lock(&hellcreek->reg_lock);
|
|
|
|
swcfg = hellcreek->swcfg;
|
|
|
|
if (enable)
|
|
swcfg |= HR_SWCFG_VLAN_UNAWARE;
|
|
else
|
|
swcfg &= ~HR_SWCFG_VLAN_UNAWARE;
|
|
|
|
hellcreek_write(hellcreek, swcfg, HR_SWCFG);
|
|
|
|
mutex_unlock(&hellcreek->reg_lock);
|
|
}
|
|
|
|
/* Default setup for DSA: VLAN <X>: CPU and Port <X> egress untagged. */
|
|
static void hellcreek_setup_vlan_membership(struct dsa_switch *ds, int port,
|
|
bool enabled)
|
|
{
|
|
const u16 vid = hellcreek_private_vid(port);
|
|
int upstream = dsa_upstream_port(ds, port);
|
|
struct hellcreek *hellcreek = ds->priv;
|
|
|
|
/* Apply vid to port as egress untagged and port vlan id */
|
|
if (enabled)
|
|
hellcreek_apply_vlan(hellcreek, port, vid, true, true);
|
|
else
|
|
hellcreek_unapply_vlan(hellcreek, port, vid);
|
|
|
|
/* Apply vid to cpu port as well */
|
|
if (enabled)
|
|
hellcreek_apply_vlan(hellcreek, upstream, vid, false, true);
|
|
else
|
|
hellcreek_unapply_vlan(hellcreek, upstream, vid);
|
|
}
|
|
|
|
static void hellcreek_port_set_ucast_flood(struct hellcreek *hellcreek,
|
|
int port, bool enable)
|
|
{
|
|
struct hellcreek_port *hellcreek_port;
|
|
u16 val;
|
|
|
|
hellcreek_port = &hellcreek->ports[port];
|
|
|
|
dev_dbg(hellcreek->dev, "%s unicast flooding on port %d\n",
|
|
enable ? "Enable" : "Disable", port);
|
|
|
|
mutex_lock(&hellcreek->reg_lock);
|
|
|
|
hellcreek_select_port(hellcreek, port);
|
|
val = hellcreek_port->ptcfg;
|
|
if (enable)
|
|
val &= ~HR_PTCFG_UUC_FLT;
|
|
else
|
|
val |= HR_PTCFG_UUC_FLT;
|
|
hellcreek_write(hellcreek, val, HR_PTCFG);
|
|
hellcreek_port->ptcfg = val;
|
|
|
|
mutex_unlock(&hellcreek->reg_lock);
|
|
}
|
|
|
|
static void hellcreek_port_set_mcast_flood(struct hellcreek *hellcreek,
|
|
int port, bool enable)
|
|
{
|
|
struct hellcreek_port *hellcreek_port;
|
|
u16 val;
|
|
|
|
hellcreek_port = &hellcreek->ports[port];
|
|
|
|
dev_dbg(hellcreek->dev, "%s multicast flooding on port %d\n",
|
|
enable ? "Enable" : "Disable", port);
|
|
|
|
mutex_lock(&hellcreek->reg_lock);
|
|
|
|
hellcreek_select_port(hellcreek, port);
|
|
val = hellcreek_port->ptcfg;
|
|
if (enable)
|
|
val &= ~HR_PTCFG_UMC_FLT;
|
|
else
|
|
val |= HR_PTCFG_UMC_FLT;
|
|
hellcreek_write(hellcreek, val, HR_PTCFG);
|
|
hellcreek_port->ptcfg = val;
|
|
|
|
mutex_unlock(&hellcreek->reg_lock);
|
|
}
|
|
|
|
static int hellcreek_pre_bridge_flags(struct dsa_switch *ds, int port,
|
|
struct switchdev_brport_flags flags,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
if (flags.mask & ~(BR_FLOOD | BR_MCAST_FLOOD))
|
|
return -EINVAL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int hellcreek_bridge_flags(struct dsa_switch *ds, int port,
|
|
struct switchdev_brport_flags flags,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
struct hellcreek *hellcreek = ds->priv;
|
|
|
|
if (flags.mask & BR_FLOOD)
|
|
hellcreek_port_set_ucast_flood(hellcreek, port,
|
|
!!(flags.val & BR_FLOOD));
|
|
|
|
if (flags.mask & BR_MCAST_FLOOD)
|
|
hellcreek_port_set_mcast_flood(hellcreek, port,
|
|
!!(flags.val & BR_MCAST_FLOOD));
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int hellcreek_port_bridge_join(struct dsa_switch *ds, int port,
|
|
struct net_device *br)
|
|
{
|
|
struct hellcreek *hellcreek = ds->priv;
|
|
|
|
dev_dbg(hellcreek->dev, "Port %d joins a bridge\n", port);
|
|
|
|
/* When joining a vlan_filtering bridge, keep the switch VLAN aware */
|
|
if (!ds->vlan_filtering)
|
|
hellcreek_setup_vlan_awareness(hellcreek, false);
|
|
|
|
/* Drop private vlans */
|
|
hellcreek_setup_vlan_membership(ds, port, false);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void hellcreek_port_bridge_leave(struct dsa_switch *ds, int port,
|
|
struct net_device *br)
|
|
{
|
|
struct hellcreek *hellcreek = ds->priv;
|
|
|
|
dev_dbg(hellcreek->dev, "Port %d leaves a bridge\n", port);
|
|
|
|
/* Enable VLAN awareness */
|
|
hellcreek_setup_vlan_awareness(hellcreek, true);
|
|
|
|
/* Enable private vlans */
|
|
hellcreek_setup_vlan_membership(ds, port, true);
|
|
}
|
|
|
|
static int __hellcreek_fdb_add(struct hellcreek *hellcreek,
|
|
const struct hellcreek_fdb_entry *entry)
|
|
{
|
|
u16 meta = 0;
|
|
|
|
dev_dbg(hellcreek->dev, "Add static FDB entry: MAC=%pM, MASK=0x%02x, "
|
|
"OBT=%d, PASS_BLOCKED=%d, REPRIO_EN=%d, PRIO=%d\n", entry->mac,
|
|
entry->portmask, entry->is_obt, entry->pass_blocked,
|
|
entry->reprio_en, entry->reprio_tc);
|
|
|
|
/* Add mac address */
|
|
hellcreek_write(hellcreek, entry->mac[1] | (entry->mac[0] << 8), HR_FDBWDH);
|
|
hellcreek_write(hellcreek, entry->mac[3] | (entry->mac[2] << 8), HR_FDBWDM);
|
|
hellcreek_write(hellcreek, entry->mac[5] | (entry->mac[4] << 8), HR_FDBWDL);
|
|
|
|
/* Meta data */
|
|
meta |= entry->portmask << HR_FDBWRM0_PORTMASK_SHIFT;
|
|
if (entry->is_obt)
|
|
meta |= HR_FDBWRM0_OBT;
|
|
if (entry->pass_blocked)
|
|
meta |= HR_FDBWRM0_PASS_BLOCKED;
|
|
if (entry->reprio_en) {
|
|
meta |= HR_FDBWRM0_REPRIO_EN;
|
|
meta |= entry->reprio_tc << HR_FDBWRM0_REPRIO_TC_SHIFT;
|
|
}
|
|
hellcreek_write(hellcreek, meta, HR_FDBWRM0);
|
|
|
|
/* Commit */
|
|
hellcreek_write(hellcreek, 0x00, HR_FDBWRCMD);
|
|
|
|
/* Wait until done */
|
|
return hellcreek_wait_fdb_ready(hellcreek);
|
|
}
|
|
|
|
static int __hellcreek_fdb_del(struct hellcreek *hellcreek,
|
|
const struct hellcreek_fdb_entry *entry)
|
|
{
|
|
dev_dbg(hellcreek->dev, "Delete FDB entry: MAC=%pM!\n", entry->mac);
|
|
|
|
/* Delete by matching idx */
|
|
hellcreek_write(hellcreek, entry->idx | HR_FDBWRCMD_FDBDEL, HR_FDBWRCMD);
|
|
|
|
/* Wait until done */
|
|
return hellcreek_wait_fdb_ready(hellcreek);
|
|
}
|
|
|
|
static void hellcreek_populate_fdb_entry(struct hellcreek *hellcreek,
|
|
struct hellcreek_fdb_entry *entry,
|
|
size_t idx)
|
|
{
|
|
unsigned char addr[ETH_ALEN];
|
|
u16 meta, mac;
|
|
|
|
/* Read values */
|
|
meta = hellcreek_read(hellcreek, HR_FDBMDRD);
|
|
mac = hellcreek_read(hellcreek, HR_FDBRDL);
|
|
addr[5] = mac & 0xff;
|
|
addr[4] = (mac & 0xff00) >> 8;
|
|
mac = hellcreek_read(hellcreek, HR_FDBRDM);
|
|
addr[3] = mac & 0xff;
|
|
addr[2] = (mac & 0xff00) >> 8;
|
|
mac = hellcreek_read(hellcreek, HR_FDBRDH);
|
|
addr[1] = mac & 0xff;
|
|
addr[0] = (mac & 0xff00) >> 8;
|
|
|
|
/* Populate @entry */
|
|
memcpy(entry->mac, addr, sizeof(addr));
|
|
entry->idx = idx;
|
|
entry->portmask = (meta & HR_FDBMDRD_PORTMASK_MASK) >>
|
|
HR_FDBMDRD_PORTMASK_SHIFT;
|
|
entry->age = (meta & HR_FDBMDRD_AGE_MASK) >>
|
|
HR_FDBMDRD_AGE_SHIFT;
|
|
entry->is_obt = !!(meta & HR_FDBMDRD_OBT);
|
|
entry->pass_blocked = !!(meta & HR_FDBMDRD_PASS_BLOCKED);
|
|
entry->is_static = !!(meta & HR_FDBMDRD_STATIC);
|
|
entry->reprio_tc = (meta & HR_FDBMDRD_REPRIO_TC_MASK) >>
|
|
HR_FDBMDRD_REPRIO_TC_SHIFT;
|
|
entry->reprio_en = !!(meta & HR_FDBMDRD_REPRIO_EN);
|
|
}
|
|
|
|
/* Retrieve the index of a FDB entry by mac address. Currently we search through
|
|
* the complete table in hardware. If that's too slow, we might have to cache
|
|
* the complete FDB table in software.
|
|
*/
|
|
static int hellcreek_fdb_get(struct hellcreek *hellcreek,
|
|
const unsigned char *dest,
|
|
struct hellcreek_fdb_entry *entry)
|
|
{
|
|
size_t i;
|
|
|
|
/* Set read pointer to zero: The read of HR_FDBMAX (read-only register)
|
|
* should reset the internal pointer. But, that doesn't work. The vendor
|
|
* suggested a subsequent write as workaround. Same for HR_FDBRDH below.
|
|
*/
|
|
hellcreek_read(hellcreek, HR_FDBMAX);
|
|
hellcreek_write(hellcreek, 0x00, HR_FDBMAX);
|
|
|
|
/* We have to read the complete table, because the switch/driver might
|
|
* enter new entries anywhere.
|
|
*/
|
|
for (i = 0; i < hellcreek->fdb_entries; ++i) {
|
|
struct hellcreek_fdb_entry tmp = { 0 };
|
|
|
|
/* Read entry */
|
|
hellcreek_populate_fdb_entry(hellcreek, &tmp, i);
|
|
|
|
/* Force next entry */
|
|
hellcreek_write(hellcreek, 0x00, HR_FDBRDH);
|
|
|
|
if (memcmp(tmp.mac, dest, ETH_ALEN))
|
|
continue;
|
|
|
|
/* Match found */
|
|
memcpy(entry, &tmp, sizeof(*entry));
|
|
|
|
return 0;
|
|
}
|
|
|
|
return -ENOENT;
|
|
}
|
|
|
|
static int hellcreek_fdb_add(struct dsa_switch *ds, int port,
|
|
const unsigned char *addr, u16 vid)
|
|
{
|
|
struct hellcreek_fdb_entry entry = { 0 };
|
|
struct hellcreek *hellcreek = ds->priv;
|
|
int ret;
|
|
|
|
dev_dbg(hellcreek->dev, "Add FDB entry for MAC=%pM\n", addr);
|
|
|
|
mutex_lock(&hellcreek->reg_lock);
|
|
|
|
ret = hellcreek_fdb_get(hellcreek, addr, &entry);
|
|
if (ret) {
|
|
/* Not found */
|
|
memcpy(entry.mac, addr, sizeof(entry.mac));
|
|
entry.portmask = BIT(port);
|
|
|
|
ret = __hellcreek_fdb_add(hellcreek, &entry);
|
|
if (ret) {
|
|
dev_err(hellcreek->dev, "Failed to add FDB entry!\n");
|
|
goto out;
|
|
}
|
|
} else {
|
|
/* Found */
|
|
ret = __hellcreek_fdb_del(hellcreek, &entry);
|
|
if (ret) {
|
|
dev_err(hellcreek->dev, "Failed to delete FDB entry!\n");
|
|
goto out;
|
|
}
|
|
|
|
entry.portmask |= BIT(port);
|
|
|
|
ret = __hellcreek_fdb_add(hellcreek, &entry);
|
|
if (ret) {
|
|
dev_err(hellcreek->dev, "Failed to add FDB entry!\n");
|
|
goto out;
|
|
}
|
|
}
|
|
|
|
out:
|
|
mutex_unlock(&hellcreek->reg_lock);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int hellcreek_fdb_del(struct dsa_switch *ds, int port,
|
|
const unsigned char *addr, u16 vid)
|
|
{
|
|
struct hellcreek_fdb_entry entry = { 0 };
|
|
struct hellcreek *hellcreek = ds->priv;
|
|
int ret;
|
|
|
|
dev_dbg(hellcreek->dev, "Delete FDB entry for MAC=%pM\n", addr);
|
|
|
|
mutex_lock(&hellcreek->reg_lock);
|
|
|
|
ret = hellcreek_fdb_get(hellcreek, addr, &entry);
|
|
if (ret) {
|
|
/* Not found */
|
|
dev_err(hellcreek->dev, "FDB entry for deletion not found!\n");
|
|
} else {
|
|
/* Found */
|
|
ret = __hellcreek_fdb_del(hellcreek, &entry);
|
|
if (ret) {
|
|
dev_err(hellcreek->dev, "Failed to delete FDB entry!\n");
|
|
goto out;
|
|
}
|
|
|
|
entry.portmask &= ~BIT(port);
|
|
|
|
if (entry.portmask != 0x00) {
|
|
ret = __hellcreek_fdb_add(hellcreek, &entry);
|
|
if (ret) {
|
|
dev_err(hellcreek->dev, "Failed to add FDB entry!\n");
|
|
goto out;
|
|
}
|
|
}
|
|
}
|
|
|
|
out:
|
|
mutex_unlock(&hellcreek->reg_lock);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int hellcreek_fdb_dump(struct dsa_switch *ds, int port,
|
|
dsa_fdb_dump_cb_t *cb, void *data)
|
|
{
|
|
struct hellcreek *hellcreek = ds->priv;
|
|
u16 entries;
|
|
int ret = 0;
|
|
size_t i;
|
|
|
|
mutex_lock(&hellcreek->reg_lock);
|
|
|
|
/* Set read pointer to zero: The read of HR_FDBMAX (read-only register)
|
|
* should reset the internal pointer. But, that doesn't work. The vendor
|
|
* suggested a subsequent write as workaround. Same for HR_FDBRDH below.
|
|
*/
|
|
entries = hellcreek_read(hellcreek, HR_FDBMAX);
|
|
hellcreek_write(hellcreek, 0x00, HR_FDBMAX);
|
|
|
|
dev_dbg(hellcreek->dev, "FDB dump for port %d, entries=%d!\n", port, entries);
|
|
|
|
/* Read table */
|
|
for (i = 0; i < hellcreek->fdb_entries; ++i) {
|
|
struct hellcreek_fdb_entry entry = { 0 };
|
|
|
|
/* Read entry */
|
|
hellcreek_populate_fdb_entry(hellcreek, &entry, i);
|
|
|
|
/* Force next entry */
|
|
hellcreek_write(hellcreek, 0x00, HR_FDBRDH);
|
|
|
|
/* Check valid */
|
|
if (is_zero_ether_addr(entry.mac))
|
|
continue;
|
|
|
|
/* Check port mask */
|
|
if (!(entry.portmask & BIT(port)))
|
|
continue;
|
|
|
|
ret = cb(entry.mac, 0, entry.is_static, data);
|
|
if (ret)
|
|
break;
|
|
}
|
|
|
|
mutex_unlock(&hellcreek->reg_lock);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int hellcreek_vlan_filtering(struct dsa_switch *ds, int port,
|
|
bool vlan_filtering,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
struct hellcreek *hellcreek = ds->priv;
|
|
|
|
dev_dbg(hellcreek->dev, "%s VLAN filtering on port %d\n",
|
|
vlan_filtering ? "Enable" : "Disable", port);
|
|
|
|
/* Configure port to drop packages with not known vids */
|
|
hellcreek_setup_ingressflt(hellcreek, port, vlan_filtering);
|
|
|
|
/* Enable VLAN awareness on the switch. This save due to
|
|
* ds->vlan_filtering_is_global.
|
|
*/
|
|
hellcreek_setup_vlan_awareness(hellcreek, vlan_filtering);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int hellcreek_enable_ip_core(struct hellcreek *hellcreek)
|
|
{
|
|
int ret;
|
|
u16 val;
|
|
|
|
mutex_lock(&hellcreek->reg_lock);
|
|
|
|
val = hellcreek_read(hellcreek, HR_CTRL_C);
|
|
val |= HR_CTRL_C_ENABLE;
|
|
hellcreek_write(hellcreek, val, HR_CTRL_C);
|
|
ret = hellcreek_wait_until_transitioned(hellcreek);
|
|
|
|
mutex_unlock(&hellcreek->reg_lock);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void hellcreek_setup_cpu_and_tunnel_port(struct hellcreek *hellcreek)
|
|
{
|
|
struct hellcreek_port *tunnel_port = &hellcreek->ports[TUNNEL_PORT];
|
|
struct hellcreek_port *cpu_port = &hellcreek->ports[CPU_PORT];
|
|
u16 ptcfg = 0;
|
|
|
|
ptcfg |= HR_PTCFG_LEARNING_EN | HR_PTCFG_ADMIN_EN;
|
|
|
|
mutex_lock(&hellcreek->reg_lock);
|
|
|
|
hellcreek_select_port(hellcreek, CPU_PORT);
|
|
hellcreek_write(hellcreek, ptcfg, HR_PTCFG);
|
|
|
|
hellcreek_select_port(hellcreek, TUNNEL_PORT);
|
|
hellcreek_write(hellcreek, ptcfg, HR_PTCFG);
|
|
|
|
cpu_port->ptcfg = ptcfg;
|
|
tunnel_port->ptcfg = ptcfg;
|
|
|
|
mutex_unlock(&hellcreek->reg_lock);
|
|
}
|
|
|
|
static void hellcreek_setup_tc_identity_mapping(struct hellcreek *hellcreek)
|
|
{
|
|
int i;
|
|
|
|
/* The switch has multiple egress queues per port. The queue is selected
|
|
* via the PCP field in the VLAN header. The switch internally deals
|
|
* with traffic classes instead of PCP values and this mapping is
|
|
* configurable.
|
|
*
|
|
* The default mapping is (PCP - TC):
|
|
* 7 - 7
|
|
* 6 - 6
|
|
* 5 - 5
|
|
* 4 - 4
|
|
* 3 - 3
|
|
* 2 - 1
|
|
* 1 - 0
|
|
* 0 - 2
|
|
*
|
|
* The default should be an identity mapping.
|
|
*/
|
|
|
|
for (i = 0; i < 8; ++i) {
|
|
mutex_lock(&hellcreek->reg_lock);
|
|
|
|
hellcreek_select_prio(hellcreek, i);
|
|
hellcreek_write(hellcreek,
|
|
i << HR_PRTCCFG_PCP_TC_MAP_SHIFT,
|
|
HR_PRTCCFG);
|
|
|
|
mutex_unlock(&hellcreek->reg_lock);
|
|
}
|
|
}
|
|
|
|
static int hellcreek_setup_fdb(struct hellcreek *hellcreek)
|
|
{
|
|
static struct hellcreek_fdb_entry l2_ptp = {
|
|
/* MAC: 01-1B-19-00-00-00 */
|
|
.mac = { 0x01, 0x1b, 0x19, 0x00, 0x00, 0x00 },
|
|
.portmask = 0x03, /* Management ports */
|
|
.age = 0,
|
|
.is_obt = 0,
|
|
.pass_blocked = 0,
|
|
.is_static = 1,
|
|
.reprio_tc = 6, /* TC: 6 as per IEEE 802.1AS */
|
|
.reprio_en = 1,
|
|
};
|
|
static struct hellcreek_fdb_entry udp4_ptp = {
|
|
/* MAC: 01-00-5E-00-01-81 */
|
|
.mac = { 0x01, 0x00, 0x5e, 0x00, 0x01, 0x81 },
|
|
.portmask = 0x03, /* Management ports */
|
|
.age = 0,
|
|
.is_obt = 0,
|
|
.pass_blocked = 0,
|
|
.is_static = 1,
|
|
.reprio_tc = 6,
|
|
.reprio_en = 1,
|
|
};
|
|
static struct hellcreek_fdb_entry udp6_ptp = {
|
|
/* MAC: 33-33-00-00-01-81 */
|
|
.mac = { 0x33, 0x33, 0x00, 0x00, 0x01, 0x81 },
|
|
.portmask = 0x03, /* Management ports */
|
|
.age = 0,
|
|
.is_obt = 0,
|
|
.pass_blocked = 0,
|
|
.is_static = 1,
|
|
.reprio_tc = 6,
|
|
.reprio_en = 1,
|
|
};
|
|
static struct hellcreek_fdb_entry l2_p2p = {
|
|
/* MAC: 01-80-C2-00-00-0E */
|
|
.mac = { 0x01, 0x80, 0xc2, 0x00, 0x00, 0x0e },
|
|
.portmask = 0x03, /* Management ports */
|
|
.age = 0,
|
|
.is_obt = 0,
|
|
.pass_blocked = 1,
|
|
.is_static = 1,
|
|
.reprio_tc = 6, /* TC: 6 as per IEEE 802.1AS */
|
|
.reprio_en = 1,
|
|
};
|
|
static struct hellcreek_fdb_entry udp4_p2p = {
|
|
/* MAC: 01-00-5E-00-00-6B */
|
|
.mac = { 0x01, 0x00, 0x5e, 0x00, 0x00, 0x6b },
|
|
.portmask = 0x03, /* Management ports */
|
|
.age = 0,
|
|
.is_obt = 0,
|
|
.pass_blocked = 1,
|
|
.is_static = 1,
|
|
.reprio_tc = 6,
|
|
.reprio_en = 1,
|
|
};
|
|
static struct hellcreek_fdb_entry udp6_p2p = {
|
|
/* MAC: 33-33-00-00-00-6B */
|
|
.mac = { 0x33, 0x33, 0x00, 0x00, 0x00, 0x6b },
|
|
.portmask = 0x03, /* Management ports */
|
|
.age = 0,
|
|
.is_obt = 0,
|
|
.pass_blocked = 1,
|
|
.is_static = 1,
|
|
.reprio_tc = 6,
|
|
.reprio_en = 1,
|
|
};
|
|
static struct hellcreek_fdb_entry stp = {
|
|
/* MAC: 01-80-C2-00-00-00 */
|
|
.mac = { 0x01, 0x80, 0xc2, 0x00, 0x00, 0x00 },
|
|
.portmask = 0x03, /* Management ports */
|
|
.age = 0,
|
|
.is_obt = 0,
|
|
.pass_blocked = 1,
|
|
.is_static = 1,
|
|
.reprio_tc = 6,
|
|
.reprio_en = 1,
|
|
};
|
|
int ret;
|
|
|
|
mutex_lock(&hellcreek->reg_lock);
|
|
ret = __hellcreek_fdb_add(hellcreek, &l2_ptp);
|
|
if (ret)
|
|
goto out;
|
|
ret = __hellcreek_fdb_add(hellcreek, &udp4_ptp);
|
|
if (ret)
|
|
goto out;
|
|
ret = __hellcreek_fdb_add(hellcreek, &udp6_ptp);
|
|
if (ret)
|
|
goto out;
|
|
ret = __hellcreek_fdb_add(hellcreek, &l2_p2p);
|
|
if (ret)
|
|
goto out;
|
|
ret = __hellcreek_fdb_add(hellcreek, &udp4_p2p);
|
|
if (ret)
|
|
goto out;
|
|
ret = __hellcreek_fdb_add(hellcreek, &udp6_p2p);
|
|
if (ret)
|
|
goto out;
|
|
ret = __hellcreek_fdb_add(hellcreek, &stp);
|
|
out:
|
|
mutex_unlock(&hellcreek->reg_lock);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int hellcreek_devlink_info_get(struct dsa_switch *ds,
|
|
struct devlink_info_req *req,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
struct hellcreek *hellcreek = ds->priv;
|
|
int ret;
|
|
|
|
ret = devlink_info_driver_name_put(req, "hellcreek");
|
|
if (ret)
|
|
return ret;
|
|
|
|
return devlink_info_version_fixed_put(req,
|
|
DEVLINK_INFO_VERSION_GENERIC_ASIC_ID,
|
|
hellcreek->pdata->name);
|
|
}
|
|
|
|
static u64 hellcreek_devlink_vlan_table_get(void *priv)
|
|
{
|
|
struct hellcreek *hellcreek = priv;
|
|
u64 count = 0;
|
|
int i;
|
|
|
|
mutex_lock(&hellcreek->reg_lock);
|
|
for (i = 0; i < VLAN_N_VID; ++i)
|
|
if (hellcreek->vidmbrcfg[i])
|
|
count++;
|
|
mutex_unlock(&hellcreek->reg_lock);
|
|
|
|
return count;
|
|
}
|
|
|
|
static u64 hellcreek_devlink_fdb_table_get(void *priv)
|
|
{
|
|
struct hellcreek *hellcreek = priv;
|
|
u64 count = 0;
|
|
|
|
/* Reading this register has side effects. Synchronize against the other
|
|
* FDB operations.
|
|
*/
|
|
mutex_lock(&hellcreek->reg_lock);
|
|
count = hellcreek_read(hellcreek, HR_FDBMAX);
|
|
mutex_unlock(&hellcreek->reg_lock);
|
|
|
|
return count;
|
|
}
|
|
|
|
static int hellcreek_setup_devlink_resources(struct dsa_switch *ds)
|
|
{
|
|
struct devlink_resource_size_params size_vlan_params;
|
|
struct devlink_resource_size_params size_fdb_params;
|
|
struct hellcreek *hellcreek = ds->priv;
|
|
int err;
|
|
|
|
devlink_resource_size_params_init(&size_vlan_params, VLAN_N_VID,
|
|
VLAN_N_VID,
|
|
1, DEVLINK_RESOURCE_UNIT_ENTRY);
|
|
|
|
devlink_resource_size_params_init(&size_fdb_params,
|
|
hellcreek->fdb_entries,
|
|
hellcreek->fdb_entries,
|
|
1, DEVLINK_RESOURCE_UNIT_ENTRY);
|
|
|
|
err = dsa_devlink_resource_register(ds, "VLAN", VLAN_N_VID,
|
|
HELLCREEK_DEVLINK_PARAM_ID_VLAN_TABLE,
|
|
DEVLINK_RESOURCE_ID_PARENT_TOP,
|
|
&size_vlan_params);
|
|
if (err)
|
|
goto out;
|
|
|
|
err = dsa_devlink_resource_register(ds, "FDB", hellcreek->fdb_entries,
|
|
HELLCREEK_DEVLINK_PARAM_ID_FDB_TABLE,
|
|
DEVLINK_RESOURCE_ID_PARENT_TOP,
|
|
&size_fdb_params);
|
|
if (err)
|
|
goto out;
|
|
|
|
dsa_devlink_resource_occ_get_register(ds,
|
|
HELLCREEK_DEVLINK_PARAM_ID_VLAN_TABLE,
|
|
hellcreek_devlink_vlan_table_get,
|
|
hellcreek);
|
|
|
|
dsa_devlink_resource_occ_get_register(ds,
|
|
HELLCREEK_DEVLINK_PARAM_ID_FDB_TABLE,
|
|
hellcreek_devlink_fdb_table_get,
|
|
hellcreek);
|
|
|
|
return 0;
|
|
|
|
out:
|
|
dsa_devlink_resources_unregister(ds);
|
|
|
|
return err;
|
|
}
|
|
|
|
static int hellcreek_devlink_region_vlan_snapshot(struct devlink *dl,
|
|
const struct devlink_region_ops *ops,
|
|
struct netlink_ext_ack *extack,
|
|
u8 **data)
|
|
{
|
|
struct hellcreek_devlink_vlan_entry *table, *entry;
|
|
struct dsa_switch *ds = dsa_devlink_to_ds(dl);
|
|
struct hellcreek *hellcreek = ds->priv;
|
|
int i;
|
|
|
|
table = kcalloc(VLAN_N_VID, sizeof(*entry), GFP_KERNEL);
|
|
if (!table)
|
|
return -ENOMEM;
|
|
|
|
entry = table;
|
|
|
|
mutex_lock(&hellcreek->reg_lock);
|
|
for (i = 0; i < VLAN_N_VID; ++i, ++entry) {
|
|
entry->member = hellcreek->vidmbrcfg[i];
|
|
entry->vid = i;
|
|
}
|
|
mutex_unlock(&hellcreek->reg_lock);
|
|
|
|
*data = (u8 *)table;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int hellcreek_devlink_region_fdb_snapshot(struct devlink *dl,
|
|
const struct devlink_region_ops *ops,
|
|
struct netlink_ext_ack *extack,
|
|
u8 **data)
|
|
{
|
|
struct dsa_switch *ds = dsa_devlink_to_ds(dl);
|
|
struct hellcreek_fdb_entry *table, *entry;
|
|
struct hellcreek *hellcreek = ds->priv;
|
|
size_t i;
|
|
|
|
table = kcalloc(hellcreek->fdb_entries, sizeof(*entry), GFP_KERNEL);
|
|
if (!table)
|
|
return -ENOMEM;
|
|
|
|
entry = table;
|
|
|
|
mutex_lock(&hellcreek->reg_lock);
|
|
|
|
/* Start table read */
|
|
hellcreek_read(hellcreek, HR_FDBMAX);
|
|
hellcreek_write(hellcreek, 0x00, HR_FDBMAX);
|
|
|
|
for (i = 0; i < hellcreek->fdb_entries; ++i, ++entry) {
|
|
/* Read current entry */
|
|
hellcreek_populate_fdb_entry(hellcreek, entry, i);
|
|
|
|
/* Advance read pointer */
|
|
hellcreek_write(hellcreek, 0x00, HR_FDBRDH);
|
|
}
|
|
|
|
mutex_unlock(&hellcreek->reg_lock);
|
|
|
|
*data = (u8 *)table;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct devlink_region_ops hellcreek_region_vlan_ops = {
|
|
.name = "vlan",
|
|
.snapshot = hellcreek_devlink_region_vlan_snapshot,
|
|
.destructor = kfree,
|
|
};
|
|
|
|
static struct devlink_region_ops hellcreek_region_fdb_ops = {
|
|
.name = "fdb",
|
|
.snapshot = hellcreek_devlink_region_fdb_snapshot,
|
|
.destructor = kfree,
|
|
};
|
|
|
|
static int hellcreek_setup_devlink_regions(struct dsa_switch *ds)
|
|
{
|
|
struct hellcreek *hellcreek = ds->priv;
|
|
struct devlink_region_ops *ops;
|
|
struct devlink_region *region;
|
|
u64 size;
|
|
int ret;
|
|
|
|
/* VLAN table */
|
|
size = VLAN_N_VID * sizeof(struct hellcreek_devlink_vlan_entry);
|
|
ops = &hellcreek_region_vlan_ops;
|
|
|
|
region = dsa_devlink_region_create(ds, ops, 1, size);
|
|
if (IS_ERR(region))
|
|
return PTR_ERR(region);
|
|
|
|
hellcreek->vlan_region = region;
|
|
|
|
/* FDB table */
|
|
size = hellcreek->fdb_entries * sizeof(struct hellcreek_fdb_entry);
|
|
ops = &hellcreek_region_fdb_ops;
|
|
|
|
region = dsa_devlink_region_create(ds, ops, 1, size);
|
|
if (IS_ERR(region)) {
|
|
ret = PTR_ERR(region);
|
|
goto err_fdb;
|
|
}
|
|
|
|
hellcreek->fdb_region = region;
|
|
|
|
return 0;
|
|
|
|
err_fdb:
|
|
dsa_devlink_region_destroy(hellcreek->vlan_region);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void hellcreek_teardown_devlink_regions(struct dsa_switch *ds)
|
|
{
|
|
struct hellcreek *hellcreek = ds->priv;
|
|
|
|
dsa_devlink_region_destroy(hellcreek->fdb_region);
|
|
dsa_devlink_region_destroy(hellcreek->vlan_region);
|
|
}
|
|
|
|
static int hellcreek_setup(struct dsa_switch *ds)
|
|
{
|
|
struct hellcreek *hellcreek = ds->priv;
|
|
u16 swcfg = 0;
|
|
int ret, i;
|
|
|
|
dev_dbg(hellcreek->dev, "Set up the switch\n");
|
|
|
|
/* Let's go */
|
|
ret = hellcreek_enable_ip_core(hellcreek);
|
|
if (ret) {
|
|
dev_err(hellcreek->dev, "Failed to enable IP core!\n");
|
|
return ret;
|
|
}
|
|
|
|
/* Enable CPU/Tunnel ports */
|
|
hellcreek_setup_cpu_and_tunnel_port(hellcreek);
|
|
|
|
/* Switch config: Keep defaults, enable FDB aging and learning and tag
|
|
* each frame from/to cpu port for DSA tagging. Also enable the length
|
|
* aware shaping mode. This eliminates the need for Qbv guard bands.
|
|
*/
|
|
swcfg |= HR_SWCFG_FDBAGE_EN |
|
|
HR_SWCFG_FDBLRN_EN |
|
|
HR_SWCFG_ALWAYS_OBT |
|
|
(HR_SWCFG_LAS_ON << HR_SWCFG_LAS_MODE_SHIFT);
|
|
hellcreek->swcfg = swcfg;
|
|
hellcreek_write(hellcreek, swcfg, HR_SWCFG);
|
|
|
|
/* Initial vlan membership to reflect port separation */
|
|
for (i = 0; i < ds->num_ports; ++i) {
|
|
if (!dsa_is_user_port(ds, i))
|
|
continue;
|
|
|
|
hellcreek_setup_vlan_membership(ds, i, true);
|
|
}
|
|
|
|
/* Configure PCP <-> TC mapping */
|
|
hellcreek_setup_tc_identity_mapping(hellcreek);
|
|
|
|
/* The VLAN awareness is a global switch setting. Therefore, mixed vlan
|
|
* filtering setups are not supported.
|
|
*/
|
|
ds->vlan_filtering_is_global = true;
|
|
ds->needs_standalone_vlan_filtering = true;
|
|
|
|
/* Intercept _all_ PTP multicast traffic */
|
|
ret = hellcreek_setup_fdb(hellcreek);
|
|
if (ret) {
|
|
dev_err(hellcreek->dev,
|
|
"Failed to insert static PTP FDB entries\n");
|
|
return ret;
|
|
}
|
|
|
|
/* Register devlink resources with DSA */
|
|
ret = hellcreek_setup_devlink_resources(ds);
|
|
if (ret) {
|
|
dev_err(hellcreek->dev,
|
|
"Failed to setup devlink resources!\n");
|
|
return ret;
|
|
}
|
|
|
|
ret = hellcreek_setup_devlink_regions(ds);
|
|
if (ret) {
|
|
dev_err(hellcreek->dev,
|
|
"Failed to setup devlink regions!\n");
|
|
goto err_regions;
|
|
}
|
|
|
|
return 0;
|
|
|
|
err_regions:
|
|
dsa_devlink_resources_unregister(ds);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void hellcreek_teardown(struct dsa_switch *ds)
|
|
{
|
|
hellcreek_teardown_devlink_regions(ds);
|
|
dsa_devlink_resources_unregister(ds);
|
|
}
|
|
|
|
static void hellcreek_phylink_validate(struct dsa_switch *ds, int port,
|
|
unsigned long *supported,
|
|
struct phylink_link_state *state)
|
|
{
|
|
__ETHTOOL_DECLARE_LINK_MODE_MASK(mask) = { 0, };
|
|
struct hellcreek *hellcreek = ds->priv;
|
|
|
|
dev_dbg(hellcreek->dev, "Phylink validate for port %d\n", port);
|
|
|
|
/* The MAC settings are a hardware configuration option and cannot be
|
|
* changed at run time or by strapping. Therefore the attached PHYs
|
|
* should be programmed to only advertise settings which are supported
|
|
* by the hardware.
|
|
*/
|
|
if (hellcreek->pdata->is_100_mbits)
|
|
phylink_set(mask, 100baseT_Full);
|
|
else
|
|
phylink_set(mask, 1000baseT_Full);
|
|
|
|
bitmap_and(supported, supported, mask,
|
|
__ETHTOOL_LINK_MODE_MASK_NBITS);
|
|
bitmap_and(state->advertising, state->advertising, mask,
|
|
__ETHTOOL_LINK_MODE_MASK_NBITS);
|
|
}
|
|
|
|
static int
|
|
hellcreek_port_prechangeupper(struct dsa_switch *ds, int port,
|
|
struct netdev_notifier_changeupper_info *info)
|
|
{
|
|
struct hellcreek *hellcreek = ds->priv;
|
|
bool used = true;
|
|
int ret = -EBUSY;
|
|
u16 vid;
|
|
int i;
|
|
|
|
dev_dbg(hellcreek->dev, "Pre change upper for port %d\n", port);
|
|
|
|
/*
|
|
* Deny VLAN devices on top of lan ports with the same VLAN ids, because
|
|
* it breaks the port separation due to the private VLANs. Example:
|
|
*
|
|
* lan0.100 *and* lan1.100 cannot be used in parallel. However, lan0.99
|
|
* and lan1.100 works.
|
|
*/
|
|
|
|
if (!is_vlan_dev(info->upper_dev))
|
|
return 0;
|
|
|
|
vid = vlan_dev_vlan_id(info->upper_dev);
|
|
|
|
/* For all ports, check bitmaps */
|
|
mutex_lock(&hellcreek->vlan_lock);
|
|
for (i = 0; i < hellcreek->pdata->num_ports; ++i) {
|
|
if (!dsa_is_user_port(ds, i))
|
|
continue;
|
|
|
|
if (port == i)
|
|
continue;
|
|
|
|
used = used && test_bit(vid, hellcreek->ports[i].vlan_dev_bitmap);
|
|
}
|
|
|
|
if (used)
|
|
goto out;
|
|
|
|
/* Update bitmap */
|
|
set_bit(vid, hellcreek->ports[port].vlan_dev_bitmap);
|
|
|
|
ret = 0;
|
|
|
|
out:
|
|
mutex_unlock(&hellcreek->vlan_lock);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void hellcreek_setup_gcl(struct hellcreek *hellcreek, int port,
|
|
const struct tc_taprio_qopt_offload *schedule)
|
|
{
|
|
const struct tc_taprio_sched_entry *cur, *initial, *next;
|
|
size_t i;
|
|
|
|
cur = initial = &schedule->entries[0];
|
|
next = cur + 1;
|
|
|
|
for (i = 1; i <= schedule->num_entries; ++i) {
|
|
u16 data;
|
|
u8 gates;
|
|
|
|
if (i == schedule->num_entries)
|
|
gates = initial->gate_mask ^
|
|
cur->gate_mask;
|
|
else
|
|
gates = next->gate_mask ^
|
|
cur->gate_mask;
|
|
|
|
data = gates;
|
|
|
|
if (i == schedule->num_entries)
|
|
data |= TR_GCLDAT_GCLWRLAST;
|
|
|
|
/* Gates states */
|
|
hellcreek_write(hellcreek, data, TR_GCLDAT);
|
|
|
|
/* Time interval */
|
|
hellcreek_write(hellcreek,
|
|
cur->interval & 0x0000ffff,
|
|
TR_GCLTIL);
|
|
hellcreek_write(hellcreek,
|
|
(cur->interval & 0xffff0000) >> 16,
|
|
TR_GCLTIH);
|
|
|
|
/* Commit entry */
|
|
data = ((i - 1) << TR_GCLCMD_GCLWRADR_SHIFT) |
|
|
(initial->gate_mask <<
|
|
TR_GCLCMD_INIT_GATE_STATES_SHIFT);
|
|
hellcreek_write(hellcreek, data, TR_GCLCMD);
|
|
|
|
cur++;
|
|
next++;
|
|
}
|
|
}
|
|
|
|
static void hellcreek_set_cycle_time(struct hellcreek *hellcreek,
|
|
const struct tc_taprio_qopt_offload *schedule)
|
|
{
|
|
u32 cycle_time = schedule->cycle_time;
|
|
|
|
hellcreek_write(hellcreek, cycle_time & 0x0000ffff, TR_CTWRL);
|
|
hellcreek_write(hellcreek, (cycle_time & 0xffff0000) >> 16, TR_CTWRH);
|
|
}
|
|
|
|
static void hellcreek_switch_schedule(struct hellcreek *hellcreek,
|
|
ktime_t start_time)
|
|
{
|
|
struct timespec64 ts = ktime_to_timespec64(start_time);
|
|
|
|
/* Start schedule at this point of time */
|
|
hellcreek_write(hellcreek, ts.tv_nsec & 0x0000ffff, TR_ESTWRL);
|
|
hellcreek_write(hellcreek, (ts.tv_nsec & 0xffff0000) >> 16, TR_ESTWRH);
|
|
|
|
/* Arm timer, set seconds and switch schedule */
|
|
hellcreek_write(hellcreek, TR_ESTCMD_ESTARM | TR_ESTCMD_ESTSWCFG |
|
|
((ts.tv_sec & TR_ESTCMD_ESTSEC_MASK) <<
|
|
TR_ESTCMD_ESTSEC_SHIFT), TR_ESTCMD);
|
|
}
|
|
|
|
static bool hellcreek_schedule_startable(struct hellcreek *hellcreek, int port)
|
|
{
|
|
struct hellcreek_port *hellcreek_port = &hellcreek->ports[port];
|
|
s64 base_time_ns, current_ns;
|
|
|
|
/* The switch allows a schedule to be started only eight seconds within
|
|
* the future. Therefore, check the current PTP time if the schedule is
|
|
* startable or not.
|
|
*/
|
|
|
|
/* Use the "cached" time. That should be alright, as it's updated quite
|
|
* frequently in the PTP code.
|
|
*/
|
|
mutex_lock(&hellcreek->ptp_lock);
|
|
current_ns = hellcreek->seconds * NSEC_PER_SEC + hellcreek->last_ts;
|
|
mutex_unlock(&hellcreek->ptp_lock);
|
|
|
|
/* Calculate difference to admin base time */
|
|
base_time_ns = ktime_to_ns(hellcreek_port->current_schedule->base_time);
|
|
|
|
return base_time_ns - current_ns < (s64)4 * NSEC_PER_SEC;
|
|
}
|
|
|
|
static void hellcreek_start_schedule(struct hellcreek *hellcreek, int port)
|
|
{
|
|
struct hellcreek_port *hellcreek_port = &hellcreek->ports[port];
|
|
ktime_t base_time, current_time;
|
|
s64 current_ns;
|
|
u32 cycle_time;
|
|
|
|
/* First select port */
|
|
hellcreek_select_tgd(hellcreek, port);
|
|
|
|
/* Forward base time into the future if needed */
|
|
mutex_lock(&hellcreek->ptp_lock);
|
|
current_ns = hellcreek->seconds * NSEC_PER_SEC + hellcreek->last_ts;
|
|
mutex_unlock(&hellcreek->ptp_lock);
|
|
|
|
current_time = ns_to_ktime(current_ns);
|
|
base_time = hellcreek_port->current_schedule->base_time;
|
|
cycle_time = hellcreek_port->current_schedule->cycle_time;
|
|
|
|
if (ktime_compare(current_time, base_time) > 0) {
|
|
s64 n;
|
|
|
|
n = div64_s64(ktime_sub_ns(current_time, base_time),
|
|
cycle_time);
|
|
base_time = ktime_add_ns(base_time, (n + 1) * cycle_time);
|
|
}
|
|
|
|
/* Set admin base time and switch schedule */
|
|
hellcreek_switch_schedule(hellcreek, base_time);
|
|
|
|
taprio_offload_free(hellcreek_port->current_schedule);
|
|
hellcreek_port->current_schedule = NULL;
|
|
|
|
dev_dbg(hellcreek->dev, "Armed EST timer for port %d\n",
|
|
hellcreek_port->port);
|
|
}
|
|
|
|
static void hellcreek_check_schedule(struct work_struct *work)
|
|
{
|
|
struct delayed_work *dw = to_delayed_work(work);
|
|
struct hellcreek_port *hellcreek_port;
|
|
struct hellcreek *hellcreek;
|
|
bool startable;
|
|
|
|
hellcreek_port = dw_to_hellcreek_port(dw);
|
|
hellcreek = hellcreek_port->hellcreek;
|
|
|
|
mutex_lock(&hellcreek->reg_lock);
|
|
|
|
/* Check starting time */
|
|
startable = hellcreek_schedule_startable(hellcreek,
|
|
hellcreek_port->port);
|
|
if (startable) {
|
|
hellcreek_start_schedule(hellcreek, hellcreek_port->port);
|
|
mutex_unlock(&hellcreek->reg_lock);
|
|
return;
|
|
}
|
|
|
|
mutex_unlock(&hellcreek->reg_lock);
|
|
|
|
/* Reschedule */
|
|
schedule_delayed_work(&hellcreek_port->schedule_work,
|
|
HELLCREEK_SCHEDULE_PERIOD);
|
|
}
|
|
|
|
static int hellcreek_port_set_schedule(struct dsa_switch *ds, int port,
|
|
struct tc_taprio_qopt_offload *taprio)
|
|
{
|
|
struct hellcreek *hellcreek = ds->priv;
|
|
struct hellcreek_port *hellcreek_port;
|
|
bool startable;
|
|
u16 ctrl;
|
|
|
|
hellcreek_port = &hellcreek->ports[port];
|
|
|
|
dev_dbg(hellcreek->dev, "Configure traffic schedule on port %d\n",
|
|
port);
|
|
|
|
/* First cancel delayed work */
|
|
cancel_delayed_work_sync(&hellcreek_port->schedule_work);
|
|
|
|
mutex_lock(&hellcreek->reg_lock);
|
|
|
|
if (hellcreek_port->current_schedule) {
|
|
taprio_offload_free(hellcreek_port->current_schedule);
|
|
hellcreek_port->current_schedule = NULL;
|
|
}
|
|
hellcreek_port->current_schedule = taprio_offload_get(taprio);
|
|
|
|
/* Then select port */
|
|
hellcreek_select_tgd(hellcreek, port);
|
|
|
|
/* Enable gating and keep defaults */
|
|
ctrl = (0xff << TR_TGDCTRL_ADMINGATESTATES_SHIFT) | TR_TGDCTRL_GATE_EN;
|
|
hellcreek_write(hellcreek, ctrl, TR_TGDCTRL);
|
|
|
|
/* Cancel pending schedule */
|
|
hellcreek_write(hellcreek, 0x00, TR_ESTCMD);
|
|
|
|
/* Setup a new schedule */
|
|
hellcreek_setup_gcl(hellcreek, port, hellcreek_port->current_schedule);
|
|
|
|
/* Configure cycle time */
|
|
hellcreek_set_cycle_time(hellcreek, hellcreek_port->current_schedule);
|
|
|
|
/* Check starting time */
|
|
startable = hellcreek_schedule_startable(hellcreek, port);
|
|
if (startable) {
|
|
hellcreek_start_schedule(hellcreek, port);
|
|
mutex_unlock(&hellcreek->reg_lock);
|
|
return 0;
|
|
}
|
|
|
|
mutex_unlock(&hellcreek->reg_lock);
|
|
|
|
/* Schedule periodic schedule check */
|
|
schedule_delayed_work(&hellcreek_port->schedule_work,
|
|
HELLCREEK_SCHEDULE_PERIOD);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int hellcreek_port_del_schedule(struct dsa_switch *ds, int port)
|
|
{
|
|
struct hellcreek *hellcreek = ds->priv;
|
|
struct hellcreek_port *hellcreek_port;
|
|
|
|
hellcreek_port = &hellcreek->ports[port];
|
|
|
|
dev_dbg(hellcreek->dev, "Remove traffic schedule on port %d\n", port);
|
|
|
|
/* First cancel delayed work */
|
|
cancel_delayed_work_sync(&hellcreek_port->schedule_work);
|
|
|
|
mutex_lock(&hellcreek->reg_lock);
|
|
|
|
if (hellcreek_port->current_schedule) {
|
|
taprio_offload_free(hellcreek_port->current_schedule);
|
|
hellcreek_port->current_schedule = NULL;
|
|
}
|
|
|
|
/* Then select port */
|
|
hellcreek_select_tgd(hellcreek, port);
|
|
|
|
/* Disable gating and return to regular switching flow */
|
|
hellcreek_write(hellcreek, 0xff << TR_TGDCTRL_ADMINGATESTATES_SHIFT,
|
|
TR_TGDCTRL);
|
|
|
|
mutex_unlock(&hellcreek->reg_lock);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static bool hellcreek_validate_schedule(struct hellcreek *hellcreek,
|
|
struct tc_taprio_qopt_offload *schedule)
|
|
{
|
|
size_t i;
|
|
|
|
/* Does this hellcreek version support Qbv in hardware? */
|
|
if (!hellcreek->pdata->qbv_support)
|
|
return false;
|
|
|
|
/* cycle time can only be 32bit */
|
|
if (schedule->cycle_time > (u32)-1)
|
|
return false;
|
|
|
|
/* cycle time extension is not supported */
|
|
if (schedule->cycle_time_extension)
|
|
return false;
|
|
|
|
/* Only set command is supported */
|
|
for (i = 0; i < schedule->num_entries; ++i)
|
|
if (schedule->entries[i].command != TC_TAPRIO_CMD_SET_GATES)
|
|
return false;
|
|
|
|
return true;
|
|
}
|
|
|
|
static int hellcreek_port_setup_tc(struct dsa_switch *ds, int port,
|
|
enum tc_setup_type type, void *type_data)
|
|
{
|
|
struct tc_taprio_qopt_offload *taprio = type_data;
|
|
struct hellcreek *hellcreek = ds->priv;
|
|
|
|
if (type != TC_SETUP_QDISC_TAPRIO)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (!hellcreek_validate_schedule(hellcreek, taprio))
|
|
return -EOPNOTSUPP;
|
|
|
|
if (taprio->enable)
|
|
return hellcreek_port_set_schedule(ds, port, taprio);
|
|
|
|
return hellcreek_port_del_schedule(ds, port);
|
|
}
|
|
|
|
static const struct dsa_switch_ops hellcreek_ds_ops = {
|
|
.devlink_info_get = hellcreek_devlink_info_get,
|
|
.get_ethtool_stats = hellcreek_get_ethtool_stats,
|
|
.get_sset_count = hellcreek_get_sset_count,
|
|
.get_strings = hellcreek_get_strings,
|
|
.get_tag_protocol = hellcreek_get_tag_protocol,
|
|
.get_ts_info = hellcreek_get_ts_info,
|
|
.phylink_validate = hellcreek_phylink_validate,
|
|
.port_bridge_flags = hellcreek_bridge_flags,
|
|
.port_bridge_join = hellcreek_port_bridge_join,
|
|
.port_bridge_leave = hellcreek_port_bridge_leave,
|
|
.port_disable = hellcreek_port_disable,
|
|
.port_enable = hellcreek_port_enable,
|
|
.port_fdb_add = hellcreek_fdb_add,
|
|
.port_fdb_del = hellcreek_fdb_del,
|
|
.port_fdb_dump = hellcreek_fdb_dump,
|
|
.port_hwtstamp_set = hellcreek_port_hwtstamp_set,
|
|
.port_hwtstamp_get = hellcreek_port_hwtstamp_get,
|
|
.port_pre_bridge_flags = hellcreek_pre_bridge_flags,
|
|
.port_prechangeupper = hellcreek_port_prechangeupper,
|
|
.port_rxtstamp = hellcreek_port_rxtstamp,
|
|
.port_setup_tc = hellcreek_port_setup_tc,
|
|
.port_stp_state_set = hellcreek_port_stp_state_set,
|
|
.port_txtstamp = hellcreek_port_txtstamp,
|
|
.port_vlan_add = hellcreek_vlan_add,
|
|
.port_vlan_del = hellcreek_vlan_del,
|
|
.port_vlan_filtering = hellcreek_vlan_filtering,
|
|
.setup = hellcreek_setup,
|
|
.teardown = hellcreek_teardown,
|
|
};
|
|
|
|
static int hellcreek_probe(struct platform_device *pdev)
|
|
{
|
|
struct device *dev = &pdev->dev;
|
|
struct hellcreek *hellcreek;
|
|
struct resource *res;
|
|
int ret, i;
|
|
|
|
hellcreek = devm_kzalloc(dev, sizeof(*hellcreek), GFP_KERNEL);
|
|
if (!hellcreek)
|
|
return -ENOMEM;
|
|
|
|
hellcreek->vidmbrcfg = devm_kcalloc(dev, VLAN_N_VID,
|
|
sizeof(*hellcreek->vidmbrcfg),
|
|
GFP_KERNEL);
|
|
if (!hellcreek->vidmbrcfg)
|
|
return -ENOMEM;
|
|
|
|
hellcreek->pdata = of_device_get_match_data(dev);
|
|
|
|
hellcreek->ports = devm_kcalloc(dev, hellcreek->pdata->num_ports,
|
|
sizeof(*hellcreek->ports),
|
|
GFP_KERNEL);
|
|
if (!hellcreek->ports)
|
|
return -ENOMEM;
|
|
|
|
for (i = 0; i < hellcreek->pdata->num_ports; ++i) {
|
|
struct hellcreek_port *port = &hellcreek->ports[i];
|
|
|
|
port->counter_values =
|
|
devm_kcalloc(dev,
|
|
ARRAY_SIZE(hellcreek_counter),
|
|
sizeof(*port->counter_values),
|
|
GFP_KERNEL);
|
|
if (!port->counter_values)
|
|
return -ENOMEM;
|
|
|
|
port->vlan_dev_bitmap =
|
|
devm_kcalloc(dev,
|
|
BITS_TO_LONGS(VLAN_N_VID),
|
|
sizeof(unsigned long),
|
|
GFP_KERNEL);
|
|
if (!port->vlan_dev_bitmap)
|
|
return -ENOMEM;
|
|
|
|
port->hellcreek = hellcreek;
|
|
port->port = i;
|
|
|
|
INIT_DELAYED_WORK(&port->schedule_work,
|
|
hellcreek_check_schedule);
|
|
}
|
|
|
|
mutex_init(&hellcreek->reg_lock);
|
|
mutex_init(&hellcreek->vlan_lock);
|
|
mutex_init(&hellcreek->ptp_lock);
|
|
|
|
hellcreek->dev = dev;
|
|
|
|
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "tsn");
|
|
if (!res) {
|
|
dev_err(dev, "No memory region provided!\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
hellcreek->base = devm_ioremap_resource(dev, res);
|
|
if (IS_ERR(hellcreek->base))
|
|
return PTR_ERR(hellcreek->base);
|
|
|
|
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "ptp");
|
|
if (!res) {
|
|
dev_err(dev, "No PTP memory region provided!\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
hellcreek->ptp_base = devm_ioremap_resource(dev, res);
|
|
if (IS_ERR(hellcreek->ptp_base))
|
|
return PTR_ERR(hellcreek->ptp_base);
|
|
|
|
ret = hellcreek_detect(hellcreek);
|
|
if (ret) {
|
|
dev_err(dev, "No (known) chip found!\n");
|
|
return ret;
|
|
}
|
|
|
|
ret = hellcreek_wait_until_ready(hellcreek);
|
|
if (ret) {
|
|
dev_err(dev, "Switch didn't become ready!\n");
|
|
return ret;
|
|
}
|
|
|
|
hellcreek_feature_detect(hellcreek);
|
|
|
|
hellcreek->ds = devm_kzalloc(dev, sizeof(*hellcreek->ds), GFP_KERNEL);
|
|
if (!hellcreek->ds)
|
|
return -ENOMEM;
|
|
|
|
hellcreek->ds->dev = dev;
|
|
hellcreek->ds->priv = hellcreek;
|
|
hellcreek->ds->ops = &hellcreek_ds_ops;
|
|
hellcreek->ds->num_ports = hellcreek->pdata->num_ports;
|
|
hellcreek->ds->num_tx_queues = HELLCREEK_NUM_EGRESS_QUEUES;
|
|
|
|
ret = dsa_register_switch(hellcreek->ds);
|
|
if (ret) {
|
|
dev_err_probe(dev, ret, "Unable to register switch\n");
|
|
return ret;
|
|
}
|
|
|
|
ret = hellcreek_ptp_setup(hellcreek);
|
|
if (ret) {
|
|
dev_err(dev, "Failed to setup PTP!\n");
|
|
goto err_ptp_setup;
|
|
}
|
|
|
|
ret = hellcreek_hwtstamp_setup(hellcreek);
|
|
if (ret) {
|
|
dev_err(dev, "Failed to setup hardware timestamping!\n");
|
|
goto err_tstamp_setup;
|
|
}
|
|
|
|
platform_set_drvdata(pdev, hellcreek);
|
|
|
|
return 0;
|
|
|
|
err_tstamp_setup:
|
|
hellcreek_ptp_free(hellcreek);
|
|
err_ptp_setup:
|
|
dsa_unregister_switch(hellcreek->ds);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int hellcreek_remove(struct platform_device *pdev)
|
|
{
|
|
struct hellcreek *hellcreek = platform_get_drvdata(pdev);
|
|
|
|
if (!hellcreek)
|
|
return 0;
|
|
|
|
hellcreek_hwtstamp_free(hellcreek);
|
|
hellcreek_ptp_free(hellcreek);
|
|
dsa_unregister_switch(hellcreek->ds);
|
|
platform_set_drvdata(pdev, NULL);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void hellcreek_shutdown(struct platform_device *pdev)
|
|
{
|
|
struct hellcreek *hellcreek = platform_get_drvdata(pdev);
|
|
|
|
if (!hellcreek)
|
|
return;
|
|
|
|
dsa_switch_shutdown(hellcreek->ds);
|
|
|
|
platform_set_drvdata(pdev, NULL);
|
|
}
|
|
|
|
static const struct hellcreek_platform_data de1soc_r1_pdata = {
|
|
.name = "r4c30",
|
|
.num_ports = 4,
|
|
.is_100_mbits = 1,
|
|
.qbv_support = 1,
|
|
.qbv_on_cpu_port = 1,
|
|
.qbu_support = 0,
|
|
.module_id = 0x4c30,
|
|
};
|
|
|
|
static const struct of_device_id hellcreek_of_match[] = {
|
|
{
|
|
.compatible = "hirschmann,hellcreek-de1soc-r1",
|
|
.data = &de1soc_r1_pdata,
|
|
},
|
|
{ /* sentinel */ },
|
|
};
|
|
MODULE_DEVICE_TABLE(of, hellcreek_of_match);
|
|
|
|
static struct platform_driver hellcreek_driver = {
|
|
.probe = hellcreek_probe,
|
|
.remove = hellcreek_remove,
|
|
.shutdown = hellcreek_shutdown,
|
|
.driver = {
|
|
.name = "hellcreek",
|
|
.of_match_table = hellcreek_of_match,
|
|
},
|
|
};
|
|
module_platform_driver(hellcreek_driver);
|
|
|
|
MODULE_AUTHOR("Kurt Kanzenbach <kurt@linutronix.de>");
|
|
MODULE_DESCRIPTION("Hirschmann Hellcreek driver");
|
|
MODULE_LICENSE("Dual MIT/GPL");
|