2020-08-26 12:37:33 +00:00
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// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (C) 2018 Marvell International Ltd.
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*/
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#include <config.h>
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#include <net.h>
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#include <netdev.h>
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#include <malloc.h>
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#include <miiphy.h>
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#include <dm.h>
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#include <misc.h>
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#include <pci.h>
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#include <pci_ids.h>
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#include <asm/io.h>
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#include <linux/delay.h>
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#include "nic_reg.h"
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#include "nic.h"
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#include "q_struct.h"
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unsigned long rounddown_pow_of_two(unsigned long n)
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{
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n |= n >> 1;
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n |= n >> 2;
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n |= n >> 4;
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n |= n >> 8;
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n |= n >> 16;
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n |= n >> 32;
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return(n + 1);
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}
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static void nic_config_cpi(struct nicpf *nic, struct cpi_cfg_msg *cfg);
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static void nic_tx_channel_cfg(struct nicpf *nic, u8 vnic,
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struct sq_cfg_msg *sq);
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static int nic_update_hw_frs(struct nicpf *nic, int new_frs, int vf);
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static int nic_rcv_queue_sw_sync(struct nicpf *nic);
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/* Register read/write APIs */
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static void nic_reg_write(struct nicpf *nic, u64 offset, u64 val)
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{
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writeq(val, nic->reg_base + offset);
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}
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static u64 nic_reg_read(struct nicpf *nic, u64 offset)
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{
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return readq(nic->reg_base + offset);
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}
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static u64 nic_get_mbx_addr(int vf)
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{
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return NIC_PF_VF_0_127_MAILBOX_0_1 + (vf << NIC_VF_NUM_SHIFT);
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}
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static void nic_send_msg_to_vf(struct nicpf *nic, int vf, union nic_mbx *mbx)
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{
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void __iomem *mbx_addr = (void *)(nic->reg_base + nic_get_mbx_addr(vf));
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u64 *msg = (u64 *)mbx;
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/* In first revision HW, mbox interrupt is triggerred
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* when PF writes to MBOX(1), in next revisions when
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* PF writes to MBOX(0)
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*/
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if (pass1_silicon(nic->rev_id, nic->hw->model_id)) {
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/* see the comment for nic_reg_write()/nic_reg_read()
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* functions above
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*/
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writeq(msg[0], mbx_addr);
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writeq(msg[1], mbx_addr + 8);
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} else {
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writeq(msg[1], mbx_addr + 8);
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writeq(msg[0], mbx_addr);
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}
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}
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static void nic_mbx_send_ready(struct nicpf *nic, int vf)
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{
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union nic_mbx mbx = {};
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int bgx_idx, lmac, timeout = 5, link = -1;
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const u8 *mac;
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mbx.nic_cfg.msg = NIC_MBOX_MSG_READY;
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mbx.nic_cfg.vf_id = vf;
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if (nic->flags & NIC_TNS_ENABLED)
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mbx.nic_cfg.tns_mode = NIC_TNS_MODE;
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else
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mbx.nic_cfg.tns_mode = NIC_TNS_BYPASS_MODE;
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if (vf < nic->num_vf_en) {
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bgx_idx = NIC_GET_BGX_FROM_VF_LMAC_MAP(nic->vf_lmac_map[vf]);
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lmac = NIC_GET_LMAC_FROM_VF_LMAC_MAP(nic->vf_lmac_map[vf]);
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mac = bgx_get_lmac_mac(nic->node, bgx_idx, lmac);
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if (mac)
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memcpy((u8 *)&mbx.nic_cfg.mac_addr, mac, 6);
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while (timeout-- && (link <= 0)) {
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link = bgx_poll_for_link(nic->node, bgx_idx, lmac);
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debug("Link status: %d\n", link);
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if (link <= 0)
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mdelay(2000);
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}
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}
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#ifdef VNIC_MULTI_QSET_SUPPORT
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mbx.nic_cfg.sqs_mode = (vf >= nic->num_vf_en) ? true : false;
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#endif
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mbx.nic_cfg.node_id = nic->node;
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mbx.nic_cfg.loopback_supported = vf < nic->num_vf_en;
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nic_send_msg_to_vf(nic, vf, &mbx);
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}
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/* ACKs VF's mailbox message
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* @vf: VF to which ACK to be sent
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*/
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static void nic_mbx_send_ack(struct nicpf *nic, int vf)
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{
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union nic_mbx mbx = {};
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mbx.msg.msg = NIC_MBOX_MSG_ACK;
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nic_send_msg_to_vf(nic, vf, &mbx);
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}
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/* NACKs VF's mailbox message that PF is not able to
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* complete the action
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* @vf: VF to which ACK to be sent
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*/
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static void nic_mbx_send_nack(struct nicpf *nic, int vf)
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{
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union nic_mbx mbx = {};
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mbx.msg.msg = NIC_MBOX_MSG_NACK;
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nic_send_msg_to_vf(nic, vf, &mbx);
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}
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static int nic_config_loopback(struct nicpf *nic, struct set_loopback *lbk)
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{
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int bgx_idx, lmac_idx;
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if (lbk->vf_id > nic->num_vf_en)
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return -1;
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bgx_idx = NIC_GET_BGX_FROM_VF_LMAC_MAP(nic->vf_lmac_map[lbk->vf_id]);
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lmac_idx = NIC_GET_LMAC_FROM_VF_LMAC_MAP(nic->vf_lmac_map[lbk->vf_id]);
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bgx_lmac_internal_loopback(nic->node, bgx_idx, lmac_idx, lbk->enable);
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return 0;
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}
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/* Interrupt handler to handle mailbox messages from VFs */
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void nic_handle_mbx_intr(struct nicpf *nic, int vf)
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{
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union nic_mbx mbx = {};
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u64 *mbx_data;
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u64 mbx_addr;
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u64 reg_addr;
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u64 cfg;
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int bgx, lmac;
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int i;
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int ret = 0;
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nic->mbx_lock[vf] = true;
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mbx_addr = nic_get_mbx_addr(vf);
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mbx_data = (u64 *)&mbx;
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for (i = 0; i < NIC_PF_VF_MAILBOX_SIZE; i++) {
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*mbx_data = nic_reg_read(nic, mbx_addr);
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mbx_data++;
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mbx_addr += sizeof(u64);
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}
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debug("%s: Mailbox msg %d from VF%d\n", __func__, mbx.msg.msg, vf);
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switch (mbx.msg.msg) {
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case NIC_MBOX_MSG_READY:
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nic_mbx_send_ready(nic, vf);
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if (vf < nic->num_vf_en) {
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nic->link[vf] = 0;
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nic->duplex[vf] = 0;
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nic->speed[vf] = 0;
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}
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ret = 1;
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break;
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case NIC_MBOX_MSG_QS_CFG:
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reg_addr = NIC_PF_QSET_0_127_CFG |
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(mbx.qs.num << NIC_QS_ID_SHIFT);
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cfg = mbx.qs.cfg;
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#ifdef VNIC_MULTI_QSET_SUPPORT
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/* Check if its a secondary Qset */
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if (vf >= nic->num_vf_en) {
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cfg = cfg & (~0x7FULL);
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/* Assign this Qset to primary Qset's VF */
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cfg |= nic->pqs_vf[vf];
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}
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#endif
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nic_reg_write(nic, reg_addr, cfg);
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break;
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case NIC_MBOX_MSG_RQ_CFG:
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reg_addr = NIC_PF_QSET_0_127_RQ_0_7_CFG |
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(mbx.rq.qs_num << NIC_QS_ID_SHIFT) |
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(mbx.rq.rq_num << NIC_Q_NUM_SHIFT);
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nic_reg_write(nic, reg_addr, mbx.rq.cfg);
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/* Enable CQE_RX2_S extension in CQE_RX descriptor.
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* This gets appended by default on 81xx/83xx chips,
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* for consistency enabling the same on 88xx pass2
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* where this is introduced.
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*/
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if (pass2_silicon(nic->rev_id, nic->hw->model_id))
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nic_reg_write(nic, NIC_PF_RX_CFG, 0x01);
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break;
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case NIC_MBOX_MSG_RQ_BP_CFG:
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reg_addr = NIC_PF_QSET_0_127_RQ_0_7_BP_CFG |
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(mbx.rq.qs_num << NIC_QS_ID_SHIFT) |
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(mbx.rq.rq_num << NIC_Q_NUM_SHIFT);
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nic_reg_write(nic, reg_addr, mbx.rq.cfg);
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break;
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case NIC_MBOX_MSG_RQ_SW_SYNC:
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ret = nic_rcv_queue_sw_sync(nic);
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break;
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case NIC_MBOX_MSG_RQ_DROP_CFG:
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reg_addr = NIC_PF_QSET_0_127_RQ_0_7_DROP_CFG |
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(mbx.rq.qs_num << NIC_QS_ID_SHIFT) |
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(mbx.rq.rq_num << NIC_Q_NUM_SHIFT);
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nic_reg_write(nic, reg_addr, mbx.rq.cfg);
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break;
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case NIC_MBOX_MSG_SQ_CFG:
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reg_addr = NIC_PF_QSET_0_127_SQ_0_7_CFG |
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(mbx.sq.qs_num << NIC_QS_ID_SHIFT) |
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(mbx.sq.sq_num << NIC_Q_NUM_SHIFT);
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nic_reg_write(nic, reg_addr, mbx.sq.cfg);
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nic_tx_channel_cfg(nic, mbx.qs.num,
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(struct sq_cfg_msg *)&mbx.sq);
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break;
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case NIC_MBOX_MSG_SET_MAC:
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#ifdef VNIC_MULTI_QSET_SUPPORT
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if (vf >= nic->num_vf_en)
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break;
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#endif
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lmac = mbx.mac.vf_id;
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bgx = NIC_GET_BGX_FROM_VF_LMAC_MAP(nic->vf_lmac_map[lmac]);
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lmac = NIC_GET_LMAC_FROM_VF_LMAC_MAP(nic->vf_lmac_map[lmac]);
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bgx_set_lmac_mac(nic->node, bgx, lmac, mbx.mac.mac_addr);
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break;
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case NIC_MBOX_MSG_SET_MAX_FRS:
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ret = nic_update_hw_frs(nic, mbx.frs.max_frs,
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mbx.frs.vf_id);
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break;
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case NIC_MBOX_MSG_CPI_CFG:
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nic_config_cpi(nic, &mbx.cpi_cfg);
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break;
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#ifdef VNIC_RSS_SUPPORT
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case NIC_MBOX_MSG_RSS_SIZE:
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nic_send_rss_size(nic, vf);
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goto unlock;
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case NIC_MBOX_MSG_RSS_CFG:
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case NIC_MBOX_MSG_RSS_CFG_CONT:
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nic_config_rss(nic, &mbx.rss_cfg);
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break;
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#endif
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case NIC_MBOX_MSG_CFG_DONE:
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/* Last message of VF config msg sequence */
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nic->vf_enabled[vf] = true;
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if (vf >= nic->lmac_cnt)
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goto unlock;
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bgx = NIC_GET_BGX_FROM_VF_LMAC_MAP(nic->vf_lmac_map[vf]);
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lmac = NIC_GET_LMAC_FROM_VF_LMAC_MAP(nic->vf_lmac_map[vf]);
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bgx_lmac_rx_tx_enable(nic->node, bgx, lmac, true);
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goto unlock;
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case NIC_MBOX_MSG_SHUTDOWN:
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/* First msg in VF teardown sequence */
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nic->vf_enabled[vf] = false;
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#ifdef VNIC_MULTI_QSET_SUPPORT
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if (vf >= nic->num_vf_en)
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nic->sqs_used[vf - nic->num_vf_en] = false;
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nic->pqs_vf[vf] = 0;
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#endif
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if (vf >= nic->lmac_cnt)
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break;
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bgx = NIC_GET_BGX_FROM_VF_LMAC_MAP(nic->vf_lmac_map[vf]);
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lmac = NIC_GET_LMAC_FROM_VF_LMAC_MAP(nic->vf_lmac_map[vf]);
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bgx_lmac_rx_tx_enable(nic->node, bgx, lmac, false);
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break;
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#ifdef VNIC_MULTI_QSET_SUPPORT
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case NIC_MBOX_MSG_ALLOC_SQS:
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nic_alloc_sqs(nic, &mbx.sqs_alloc);
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goto unlock;
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case NIC_MBOX_MSG_NICVF_PTR:
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nic->nicvf[vf] = mbx.nicvf.nicvf;
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break;
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case NIC_MBOX_MSG_PNICVF_PTR:
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nic_send_pnicvf(nic, vf);
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goto unlock;
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case NIC_MBOX_MSG_SNICVF_PTR:
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nic_send_snicvf(nic, &mbx.nicvf);
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goto unlock;
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#endif
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case NIC_MBOX_MSG_LOOPBACK:
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ret = nic_config_loopback(nic, &mbx.lbk);
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break;
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default:
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printf("Invalid msg from VF%d, msg 0x%x\n", vf, mbx.msg.msg);
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break;
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}
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if (!ret)
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nic_mbx_send_ack(nic, vf);
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else if (mbx.msg.msg != NIC_MBOX_MSG_READY)
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nic_mbx_send_nack(nic, vf);
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unlock:
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nic->mbx_lock[vf] = false;
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}
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static int nic_rcv_queue_sw_sync(struct nicpf *nic)
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{
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int timeout = 20;
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nic_reg_write(nic, NIC_PF_SW_SYNC_RX, 0x01);
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while (timeout) {
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if (nic_reg_read(nic, NIC_PF_SW_SYNC_RX_DONE) & 0x1)
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break;
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udelay(2000);
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timeout--;
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}
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nic_reg_write(nic, NIC_PF_SW_SYNC_RX, 0x00);
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if (!timeout) {
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printf("Recevie queue software sync failed");
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return 1;
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}
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return 0;
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}
|
|
|
|
|
|
|
|
static int nic_update_hw_frs(struct nicpf *nic, int new_frs, int vf)
|
|
|
|
{
|
|
|
|
u64 *pkind = (u64 *)&nic->pkind;
|
|
|
|
|
|
|
|
if (new_frs > NIC_HW_MAX_FRS || new_frs < NIC_HW_MIN_FRS) {
|
|
|
|
printf("Invalid MTU setting from VF%d rejected,", vf);
|
|
|
|
printf(" should be between %d and %d\n", NIC_HW_MIN_FRS,
|
|
|
|
NIC_HW_MAX_FRS);
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
new_frs += ETH_HLEN;
|
|
|
|
if (new_frs <= nic->pkind.maxlen)
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
nic->pkind.maxlen = new_frs;
|
|
|
|
|
|
|
|
nic_reg_write(nic, NIC_PF_PKIND_0_15_CFG, *pkind);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Set minimum transmit packet size */
|
|
|
|
static void nic_set_tx_pkt_pad(struct nicpf *nic, int size)
|
|
|
|
{
|
|
|
|
int lmac;
|
|
|
|
u64 lmac_cfg;
|
|
|
|
struct hw_info *hw = nic->hw;
|
|
|
|
int max_lmac = nic->hw->bgx_cnt * MAX_LMAC_PER_BGX;
|
|
|
|
|
|
|
|
/* Max value that can be set is 60 */
|
|
|
|
if (size > 52)
|
|
|
|
size = 52;
|
|
|
|
|
|
|
|
/* CN81XX has RGX configured as FAKE BGX, adjust mac_lmac accordingly */
|
|
|
|
if (hw->chans_per_rgx)
|
|
|
|
max_lmac = ((nic->hw->bgx_cnt - 1) * MAX_LMAC_PER_BGX) + 1;
|
|
|
|
|
|
|
|
for (lmac = 0; lmac < max_lmac; lmac++) {
|
|
|
|
lmac_cfg = nic_reg_read(nic, NIC_PF_LMAC_0_7_CFG | (lmac << 3));
|
|
|
|
lmac_cfg &= ~(0xF << 2);
|
|
|
|
lmac_cfg |= ((size / 4) << 2);
|
|
|
|
nic_reg_write(nic, NIC_PF_LMAC_0_7_CFG | (lmac << 3), lmac_cfg);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Function to check number of LMACs present and set VF to LMAC mapping.
|
|
|
|
* Mapping will be used while initializing channels.
|
|
|
|
*/
|
|
|
|
static void nic_set_lmac_vf_mapping(struct nicpf *nic)
|
|
|
|
{
|
|
|
|
int bgx, bgx_count, next_bgx_lmac = 0;
|
|
|
|
int lmac, lmac_cnt = 0;
|
|
|
|
u64 lmac_credit;
|
|
|
|
|
|
|
|
nic->num_vf_en = 0;
|
|
|
|
if (nic->flags & NIC_TNS_ENABLED) {
|
|
|
|
nic->num_vf_en = DEFAULT_NUM_VF_ENABLED;
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
bgx_get_count(nic->node, &bgx_count);
|
|
|
|
debug("bgx_count: %d\n", bgx_count);
|
|
|
|
|
|
|
|
for (bgx = 0; bgx < nic->hw->bgx_cnt; bgx++) {
|
|
|
|
if (!(bgx_count & (1 << bgx)))
|
|
|
|
continue;
|
|
|
|
nic->bgx_cnt++;
|
|
|
|
lmac_cnt = bgx_get_lmac_count(nic->node, bgx);
|
|
|
|
debug("lmac_cnt: %d for BGX%d\n", lmac_cnt, bgx);
|
|
|
|
for (lmac = 0; lmac < lmac_cnt; lmac++)
|
|
|
|
nic->vf_lmac_map[next_bgx_lmac++] =
|
|
|
|
NIC_SET_VF_LMAC_MAP(bgx, lmac);
|
|
|
|
nic->num_vf_en += lmac_cnt;
|
|
|
|
|
|
|
|
/* Program LMAC credits */
|
|
|
|
lmac_credit = (1ull << 1); /* chennel credit enable */
|
|
|
|
lmac_credit |= (0x1ff << 2);
|
|
|
|
lmac_credit |= (((((48 * 1024) / lmac_cnt) -
|
|
|
|
NIC_HW_MAX_FRS) / 16) << 12);
|
|
|
|
lmac = bgx * MAX_LMAC_PER_BGX;
|
|
|
|
for (; lmac < lmac_cnt + (bgx * MAX_LMAC_PER_BGX); lmac++)
|
|
|
|
nic_reg_write(nic, NIC_PF_LMAC_0_7_CREDIT + (lmac * 8),
|
|
|
|
lmac_credit);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void nic_get_hw_info(struct nicpf *nic)
|
|
|
|
{
|
|
|
|
u16 sdevid;
|
|
|
|
struct hw_info *hw = nic->hw;
|
|
|
|
|
|
|
|
dm_pci_read_config16(nic->udev, PCI_SUBSYSTEM_ID, &sdevid);
|
|
|
|
|
|
|
|
switch (sdevid) {
|
|
|
|
case PCI_SUBSYS_DEVID_88XX_NIC_PF:
|
|
|
|
hw->bgx_cnt = MAX_BGX_PER_NODE;
|
|
|
|
hw->chans_per_lmac = 16;
|
|
|
|
hw->chans_per_bgx = 128;
|
|
|
|
hw->cpi_cnt = 2048;
|
|
|
|
hw->rssi_cnt = 4096;
|
|
|
|
hw->rss_ind_tbl_size = NIC_MAX_RSS_IDR_TBL_SIZE;
|
|
|
|
hw->tl3_cnt = 256;
|
|
|
|
hw->tl2_cnt = 64;
|
|
|
|
hw->tl1_cnt = 2;
|
|
|
|
hw->tl1_per_bgx = true;
|
|
|
|
hw->model_id = 0x88;
|
|
|
|
break;
|
|
|
|
case PCI_SUBSYS_DEVID_81XX_NIC_PF:
|
|
|
|
hw->bgx_cnt = MAX_BGX_PER_NODE;
|
|
|
|
hw->chans_per_lmac = 8;
|
|
|
|
hw->chans_per_bgx = 32;
|
|
|
|
hw->chans_per_rgx = 8;
|
|
|
|
hw->chans_per_lbk = 24;
|
|
|
|
hw->cpi_cnt = 512;
|
|
|
|
hw->rssi_cnt = 256;
|
|
|
|
hw->rss_ind_tbl_size = 32; /* Max RSSI / Max interfaces */
|
|
|
|
hw->tl3_cnt = 64;
|
|
|
|
hw->tl2_cnt = 16;
|
|
|
|
hw->tl1_cnt = 10;
|
|
|
|
hw->tl1_per_bgx = false;
|
|
|
|
hw->model_id = 0x81;
|
|
|
|
break;
|
|
|
|
case PCI_SUBSYS_DEVID_83XX_NIC_PF:
|
|
|
|
hw->bgx_cnt = MAX_BGX_PER_NODE;
|
|
|
|
hw->chans_per_lmac = 8;
|
|
|
|
hw->chans_per_bgx = 32;
|
|
|
|
hw->chans_per_lbk = 64;
|
|
|
|
hw->cpi_cnt = 2048;
|
|
|
|
hw->rssi_cnt = 1024;
|
|
|
|
hw->rss_ind_tbl_size = 64; /* Max RSSI / Max interfaces */
|
|
|
|
hw->tl3_cnt = 256;
|
|
|
|
hw->tl2_cnt = 64;
|
|
|
|
hw->tl1_cnt = 18;
|
|
|
|
hw->tl1_per_bgx = false;
|
|
|
|
hw->model_id = 0x83;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
hw->tl4_cnt = MAX_QUEUES_PER_QSET * pci_sriov_get_totalvfs(nic->udev);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void nic_init_hw(struct nicpf *nic)
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
u64 reg;
|
|
|
|
u64 *pkind = (u64 *)&nic->pkind;
|
|
|
|
|
|
|
|
/* Get HW capability info */
|
|
|
|
nic_get_hw_info(nic);
|
|
|
|
|
|
|
|
/* Enable NIC HW block */
|
|
|
|
nic_reg_write(nic, NIC_PF_CFG, 0x3);
|
|
|
|
|
|
|
|
/* Enable backpressure */
|
|
|
|
nic_reg_write(nic, NIC_PF_BP_CFG, (1ULL << 6) | 0x03);
|
|
|
|
nic_reg_write(nic, NIC_PF_INTF_0_1_BP_CFG, (1ULL << 63) | 0x08);
|
|
|
|
nic_reg_write(nic, NIC_PF_INTF_0_1_BP_CFG + (1 << 8),
|
|
|
|
(1ULL << 63) | 0x09);
|
|
|
|
|
|
|
|
for (i = 0; i < NIC_MAX_CHANS; i++)
|
|
|
|
nic_reg_write(nic, NIC_PF_CHAN_0_255_TX_CFG | (i << 3), 1);
|
|
|
|
|
|
|
|
if (nic->flags & NIC_TNS_ENABLED) {
|
|
|
|
reg = NIC_TNS_MODE << 7;
|
|
|
|
reg |= 0x06;
|
|
|
|
nic_reg_write(nic, NIC_PF_INTF_0_1_SEND_CFG, reg);
|
|
|
|
reg &= ~0xFull;
|
|
|
|
reg |= 0x07;
|
|
|
|
nic_reg_write(nic, NIC_PF_INTF_0_1_SEND_CFG | (1 << 8), reg);
|
|
|
|
} else {
|
|
|
|
/* Disable TNS mode on both interfaces */
|
|
|
|
reg = NIC_TNS_BYPASS_MODE << 7;
|
|
|
|
reg |= 0x08; /* Block identifier */
|
|
|
|
nic_reg_write(nic, NIC_PF_INTF_0_1_SEND_CFG, reg);
|
|
|
|
reg &= ~0xFull;
|
|
|
|
reg |= 0x09;
|
|
|
|
nic_reg_write(nic, NIC_PF_INTF_0_1_SEND_CFG | (1 << 8), reg);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* PKIND configuration */
|
|
|
|
nic->pkind.minlen = 0;
|
|
|
|
nic->pkind.maxlen = NIC_HW_MAX_FRS + ETH_HLEN;
|
|
|
|
nic->pkind.lenerr_en = 1;
|
|
|
|
nic->pkind.rx_hdr = 0;
|
|
|
|
nic->pkind.hdr_sl = 0;
|
|
|
|
|
|
|
|
for (i = 0; i < NIC_MAX_PKIND; i++)
|
|
|
|
nic_reg_write(nic, NIC_PF_PKIND_0_15_CFG | (i << 3), *pkind);
|
|
|
|
|
|
|
|
nic_set_tx_pkt_pad(nic, NIC_HW_MIN_FRS);
|
|
|
|
|
|
|
|
/* Timer config */
|
|
|
|
nic_reg_write(nic, NIC_PF_INTR_TIMER_CFG, NICPF_CLK_PER_INT_TICK);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Channel parse index configuration */
|
|
|
|
static void nic_config_cpi(struct nicpf *nic, struct cpi_cfg_msg *cfg)
|
|
|
|
{
|
|
|
|
struct hw_info *hw = nic->hw;
|
|
|
|
u32 vnic, bgx, lmac, chan;
|
|
|
|
u32 padd, cpi_count = 0;
|
|
|
|
u64 cpi_base, cpi, rssi_base, rssi;
|
|
|
|
u8 qset, rq_idx = 0;
|
|
|
|
|
|
|
|
vnic = cfg->vf_id;
|
|
|
|
bgx = NIC_GET_BGX_FROM_VF_LMAC_MAP(nic->vf_lmac_map[vnic]);
|
|
|
|
lmac = NIC_GET_LMAC_FROM_VF_LMAC_MAP(nic->vf_lmac_map[vnic]);
|
|
|
|
|
|
|
|
chan = (lmac * hw->chans_per_lmac) + (bgx * hw->chans_per_bgx);
|
|
|
|
cpi_base = vnic * NIC_MAX_CPI_PER_LMAC;
|
|
|
|
rssi_base = vnic * hw->rss_ind_tbl_size;
|
|
|
|
|
|
|
|
/* Rx channel configuration */
|
|
|
|
nic_reg_write(nic, NIC_PF_CHAN_0_255_RX_BP_CFG | (chan << 3),
|
|
|
|
(1ull << 63) | (vnic << 0));
|
|
|
|
nic_reg_write(nic, NIC_PF_CHAN_0_255_RX_CFG | (chan << 3),
|
|
|
|
((u64)cfg->cpi_alg << 62) | (cpi_base << 48));
|
|
|
|
|
|
|
|
if (cfg->cpi_alg == CPI_ALG_NONE)
|
|
|
|
cpi_count = 1;
|
|
|
|
else if (cfg->cpi_alg == CPI_ALG_VLAN) /* 3 bits of PCP */
|
|
|
|
cpi_count = 8;
|
|
|
|
else if (cfg->cpi_alg == CPI_ALG_VLAN16) /* 3 bits PCP + DEI */
|
|
|
|
cpi_count = 16;
|
|
|
|
else if (cfg->cpi_alg == CPI_ALG_DIFF) /* 6bits DSCP */
|
|
|
|
cpi_count = NIC_MAX_CPI_PER_LMAC;
|
|
|
|
|
|
|
|
/* RSS Qset, Qidx mapping */
|
|
|
|
qset = cfg->vf_id;
|
|
|
|
rssi = rssi_base;
|
|
|
|
for (; rssi < (rssi_base + cfg->rq_cnt); rssi++) {
|
|
|
|
nic_reg_write(nic, NIC_PF_RSSI_0_4097_RQ | (rssi << 3),
|
|
|
|
(qset << 3) | rq_idx);
|
|
|
|
rq_idx++;
|
|
|
|
}
|
|
|
|
|
|
|
|
rssi = 0;
|
|
|
|
cpi = cpi_base;
|
|
|
|
for (; cpi < (cpi_base + cpi_count); cpi++) {
|
|
|
|
/* Determine port to channel adder */
|
|
|
|
if (cfg->cpi_alg != CPI_ALG_DIFF)
|
|
|
|
padd = cpi % cpi_count;
|
|
|
|
else
|
|
|
|
padd = cpi % 8; /* 3 bits CS out of 6bits DSCP */
|
|
|
|
|
|
|
|
/* Leave RSS_SIZE as '0' to disable RSS */
|
|
|
|
if (pass1_silicon(nic->rev_id, nic->hw->model_id)) {
|
|
|
|
nic_reg_write(nic, NIC_PF_CPI_0_2047_CFG | (cpi << 3),
|
|
|
|
(vnic << 24) | (padd << 16) |
|
|
|
|
(rssi_base + rssi));
|
|
|
|
} else {
|
|
|
|
/* Set MPI_ALG to '0' to disable MCAM parsing */
|
|
|
|
nic_reg_write(nic, NIC_PF_CPI_0_2047_CFG | (cpi << 3),
|
|
|
|
(padd << 16));
|
|
|
|
/* MPI index is same as CPI if MPI_ALG is not enabled */
|
|
|
|
nic_reg_write(nic, NIC_PF_MPI_0_2047_CFG | (cpi << 3),
|
|
|
|
(vnic << 24) | (rssi_base + rssi));
|
|
|
|
}
|
|
|
|
|
|
|
|
if ((rssi + 1) >= cfg->rq_cnt)
|
|
|
|
continue;
|
|
|
|
|
|
|
|
if (cfg->cpi_alg == CPI_ALG_VLAN)
|
|
|
|
rssi++;
|
|
|
|
else if (cfg->cpi_alg == CPI_ALG_VLAN16)
|
|
|
|
rssi = ((cpi - cpi_base) & 0xe) >> 1;
|
|
|
|
else if (cfg->cpi_alg == CPI_ALG_DIFF)
|
|
|
|
rssi = ((cpi - cpi_base) & 0x38) >> 3;
|
|
|
|
}
|
|
|
|
nic->cpi_base[cfg->vf_id] = cpi_base;
|
|
|
|
nic->rssi_base[cfg->vf_id] = rssi_base;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Transmit channel configuration (TL4 -> TL3 -> Chan)
|
|
|
|
* VNIC0-SQ0 -> TL4(0) -> TL4A(0) -> TL3[0] -> BGX0/LMAC0/Chan0
|
|
|
|
* VNIC1-SQ0 -> TL4(8) -> TL4A(2) -> TL3[2] -> BGX0/LMAC1/Chan0
|
|
|
|
* VNIC2-SQ0 -> TL4(16) -> TL4A(4) -> TL3[4] -> BGX0/LMAC2/Chan0
|
|
|
|
* VNIC3-SQ0 -> TL4(32) -> TL4A(6) -> TL3[6] -> BGX0/LMAC3/Chan0
|
|
|
|
* VNIC4-SQ0 -> TL4(512) -> TL4A(128) -> TL3[128] -> BGX1/LMAC0/Chan0
|
|
|
|
* VNIC5-SQ0 -> TL4(520) -> TL4A(130) -> TL3[130] -> BGX1/LMAC1/Chan0
|
|
|
|
* VNIC6-SQ0 -> TL4(528) -> TL4A(132) -> TL3[132] -> BGX1/LMAC2/Chan0
|
|
|
|
* VNIC7-SQ0 -> TL4(536) -> TL4A(134) -> TL3[134] -> BGX1/LMAC3/Chan0
|
|
|
|
*/
|
|
|
|
static void nic_tx_channel_cfg(struct nicpf *nic, u8 vnic,
|
|
|
|
struct sq_cfg_msg *sq)
|
|
|
|
{
|
|
|
|
struct hw_info *hw = nic->hw;
|
|
|
|
u32 bgx, lmac, chan;
|
|
|
|
u32 tl2, tl3, tl4;
|
|
|
|
u32 rr_quantum;
|
|
|
|
u8 sq_idx = sq->sq_num;
|
|
|
|
u8 pqs_vnic = vnic;
|
|
|
|
int svf;
|
|
|
|
u16 sdevid;
|
|
|
|
|
|
|
|
dm_pci_read_config16(nic->udev, PCI_SUBSYSTEM_ID, &sdevid);
|
|
|
|
|
|
|
|
bgx = NIC_GET_BGX_FROM_VF_LMAC_MAP(nic->vf_lmac_map[pqs_vnic]);
|
|
|
|
lmac = NIC_GET_LMAC_FROM_VF_LMAC_MAP(nic->vf_lmac_map[pqs_vnic]);
|
|
|
|
|
|
|
|
/* 24 bytes for FCS, IPG and preamble */
|
|
|
|
rr_quantum = ((NIC_HW_MAX_FRS + 24) / 4);
|
|
|
|
|
|
|
|
/* For 88xx 0-511 TL4 transmits via BGX0 and
|
|
|
|
* 512-1023 TL4s transmit via BGX1.
|
|
|
|
*/
|
|
|
|
if (hw->tl1_per_bgx) {
|
|
|
|
tl4 = bgx * (hw->tl4_cnt / hw->bgx_cnt);
|
|
|
|
if (!sq->sqs_mode) {
|
|
|
|
tl4 += (lmac * MAX_QUEUES_PER_QSET);
|
|
|
|
} else {
|
|
|
|
for (svf = 0; svf < MAX_SQS_PER_VF_SINGLE_NODE; svf++) {
|
|
|
|
if (nic->vf_sqs[pqs_vnic][svf] == vnic)
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
tl4 += (MAX_LMAC_PER_BGX * MAX_QUEUES_PER_QSET);
|
|
|
|
tl4 += (lmac * MAX_QUEUES_PER_QSET *
|
|
|
|
MAX_SQS_PER_VF_SINGLE_NODE);
|
|
|
|
tl4 += (svf * MAX_QUEUES_PER_QSET);
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
tl4 = (vnic * MAX_QUEUES_PER_QSET);
|
|
|
|
}
|
|
|
|
|
|
|
|
tl4 += sq_idx;
|
|
|
|
|
|
|
|
tl3 = tl4 / (hw->tl4_cnt / hw->tl3_cnt);
|
|
|
|
nic_reg_write(nic, NIC_PF_QSET_0_127_SQ_0_7_CFG2 |
|
|
|
|
((u64)vnic << NIC_QS_ID_SHIFT) |
|
|
|
|
((u32)sq_idx << NIC_Q_NUM_SHIFT), tl4);
|
|
|
|
nic_reg_write(nic, NIC_PF_TL4_0_1023_CFG | (tl4 << 3),
|
|
|
|
((u64)vnic << 27) | ((u32)sq_idx << 24) | rr_quantum);
|
|
|
|
|
|
|
|
nic_reg_write(nic, NIC_PF_TL3_0_255_CFG | (tl3 << 3), rr_quantum);
|
|
|
|
|
|
|
|
/* On 88xx 0-127 channels are for BGX0 and
|
|
|
|
* 127-255 channels for BGX1.
|
|
|
|
*
|
|
|
|
* On 81xx/83xx TL3_CHAN reg should be configured with channel
|
|
|
|
* within LMAC i.e 0-7 and not the actual channel number like on 88xx
|
|
|
|
*/
|
|
|
|
chan = (lmac * hw->chans_per_lmac) + (bgx * hw->chans_per_bgx);
|
|
|
|
if (hw->tl1_per_bgx)
|
|
|
|
nic_reg_write(nic, NIC_PF_TL3_0_255_CHAN | (tl3 << 3), chan);
|
|
|
|
else
|
|
|
|
nic_reg_write(nic, NIC_PF_TL3_0_255_CHAN | (tl3 << 3), 0);
|
|
|
|
|
|
|
|
/* Enable backpressure on the channel */
|
|
|
|
nic_reg_write(nic, NIC_PF_CHAN_0_255_TX_CFG | (chan << 3), 1);
|
|
|
|
|
|
|
|
tl2 = tl3 >> 2;
|
|
|
|
nic_reg_write(nic, NIC_PF_TL3A_0_63_CFG | (tl2 << 3), tl2);
|
|
|
|
nic_reg_write(nic, NIC_PF_TL2_0_63_CFG | (tl2 << 3), rr_quantum);
|
|
|
|
/* No priorities as of now */
|
|
|
|
nic_reg_write(nic, NIC_PF_TL2_0_63_PRI | (tl2 << 3), 0x00);
|
|
|
|
|
|
|
|
/* Unlike 88xx where TL2s 0-31 transmits to TL1 '0' and rest to TL1 '1'
|
|
|
|
* on 81xx/83xx TL2 needs to be configured to transmit to one of the
|
|
|
|
* possible LMACs.
|
|
|
|
*
|
|
|
|
* This register doesn't exist on 88xx.
|
|
|
|
*/
|
|
|
|
if (!hw->tl1_per_bgx)
|
|
|
|
nic_reg_write(nic, NIC_PF_TL2_LMAC | (tl2 << 3),
|
|
|
|
lmac + (bgx * MAX_LMAC_PER_BGX));
|
|
|
|
}
|
|
|
|
|
|
|
|
int nic_initialize(struct udevice *dev)
|
|
|
|
{
|
|
|
|
struct nicpf *nic = dev_get_priv(dev);
|
|
|
|
|
|
|
|
nic->udev = dev;
|
|
|
|
nic->hw = calloc(1, sizeof(struct hw_info));
|
|
|
|
if (!nic->hw)
|
|
|
|
return -ENOMEM;
|
|
|
|
|
|
|
|
/* MAP PF's configuration registers */
|
|
|
|
nic->reg_base = dm_pci_map_bar(dev, PCI_BASE_ADDRESS_0,
|
|
|
|
PCI_REGION_MEM);
|
|
|
|
if (!nic->reg_base) {
|
|
|
|
printf("Cannot map config register space, aborting\n");
|
|
|
|
goto exit;
|
|
|
|
}
|
|
|
|
|
|
|
|
nic->node = node_id(nic->reg_base);
|
|
|
|
dm_pci_read_config8(dev, PCI_REVISION_ID, &nic->rev_id);
|
|
|
|
|
|
|
|
/* By default set NIC in TNS bypass mode */
|
|
|
|
nic->flags &= ~NIC_TNS_ENABLED;
|
|
|
|
|
|
|
|
/* Initialize hardware */
|
|
|
|
nic_init_hw(nic);
|
|
|
|
|
|
|
|
nic_set_lmac_vf_mapping(nic);
|
|
|
|
|
|
|
|
/* Set RSS TBL size for each VF */
|
|
|
|
nic->rss_ind_tbl_size = NIC_MAX_RSS_IDR_TBL_SIZE;
|
|
|
|
|
|
|
|
nic->rss_ind_tbl_size = rounddown_pow_of_two(nic->rss_ind_tbl_size);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
exit:
|
|
|
|
free(nic->hw);
|
|
|
|
return -ENODEV;
|
|
|
|
}
|
|
|
|
|
|
|
|
int octeontx_nic_probe(struct udevice *dev)
|
|
|
|
{
|
|
|
|
int ret = 0;
|
|
|
|
struct nicpf *nicpf = dev_get_priv(dev);
|
|
|
|
|
|
|
|
nicpf->udev = dev;
|
|
|
|
ret = nic_initialize(dev);
|
|
|
|
if (ret < 0) {
|
|
|
|
printf("couldn't initialize NIC PF\n");
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
ret = pci_sriov_init(dev, nicpf->num_vf_en);
|
|
|
|
if (ret < 0)
|
|
|
|
printf("enabling SRIOV failed for num VFs %d\n",
|
|
|
|
nicpf->num_vf_en);
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
U_BOOT_DRIVER(octeontx_nic) = {
|
|
|
|
.name = "octeontx_nic",
|
|
|
|
.id = UCLASS_MISC,
|
|
|
|
.probe = octeontx_nic_probe,
|
2020-12-03 23:55:17 +00:00
|
|
|
.priv_auto = sizeof(struct nicpf),
|
2020-08-26 12:37:33 +00:00
|
|
|
};
|
|
|
|
|
|
|
|
static struct pci_device_id octeontx_nic_supported[] = {
|
|
|
|
{ PCI_VDEVICE(CAVIUM, PCI_DEVICE_ID_CAVIUM_NIC) },
|
|
|
|
{}
|
|
|
|
};
|
|
|
|
|
|
|
|
U_BOOT_PCI_DEVICE(octeontx_nic, octeontx_nic_supported);
|