282 lines
7.1 KiB
C
282 lines
7.1 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Linux network driver for QLogic BR-series Converged Network Adapter.
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*/
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/*
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* Copyright (c) 2005-2014 Brocade Communications Systems, Inc.
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* Copyright (c) 2014-2015 QLogic Corporation
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* All rights reserved
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* www.qlogic.com
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*/
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#include "bfa_cee.h"
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#include "bfi_cna.h"
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#include "bfa_ioc.h"
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static void bfa_cee_format_lldp_cfg(struct bfa_cee_lldp_cfg *lldp_cfg);
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static void bfa_cee_format_cee_cfg(void *buffer);
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static void
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bfa_cee_format_cee_cfg(void *buffer)
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{
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struct bfa_cee_attr *cee_cfg = buffer;
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bfa_cee_format_lldp_cfg(&cee_cfg->lldp_remote);
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}
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static void
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bfa_cee_stats_swap(struct bfa_cee_stats *stats)
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{
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u32 *buffer = (u32 *)stats;
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int i;
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for (i = 0; i < (sizeof(struct bfa_cee_stats) / sizeof(u32));
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i++) {
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buffer[i] = ntohl(buffer[i]);
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}
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}
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static void
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bfa_cee_format_lldp_cfg(struct bfa_cee_lldp_cfg *lldp_cfg)
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{
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lldp_cfg->time_to_live =
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ntohs(lldp_cfg->time_to_live);
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lldp_cfg->enabled_system_cap =
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ntohs(lldp_cfg->enabled_system_cap);
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}
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/**
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* bfa_cee_attr_meminfo - Returns the size of the DMA memory needed by CEE attributes
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*/
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static u32
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bfa_cee_attr_meminfo(void)
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{
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return roundup(sizeof(struct bfa_cee_attr), BFA_DMA_ALIGN_SZ);
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}
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/**
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* bfa_cee_stats_meminfo - Returns the size of the DMA memory needed by CEE stats
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*/
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static u32
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bfa_cee_stats_meminfo(void)
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{
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return roundup(sizeof(struct bfa_cee_stats), BFA_DMA_ALIGN_SZ);
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}
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/**
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* bfa_cee_get_attr_isr - CEE ISR for get-attributes responses from f/w
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*
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* @cee: Pointer to the CEE module
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* @status: Return status from the f/w
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*/
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static void
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bfa_cee_get_attr_isr(struct bfa_cee *cee, enum bfa_status status)
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{
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cee->get_attr_status = status;
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if (status == BFA_STATUS_OK) {
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memcpy(cee->attr, cee->attr_dma.kva,
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sizeof(struct bfa_cee_attr));
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bfa_cee_format_cee_cfg(cee->attr);
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}
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cee->get_attr_pending = false;
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if (cee->cbfn.get_attr_cbfn)
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cee->cbfn.get_attr_cbfn(cee->cbfn.get_attr_cbarg, status);
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}
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/**
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* bfa_cee_get_stats_isr - CEE ISR for get-stats responses from f/w
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*
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* @cee: Pointer to the CEE module
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* @status: Return status from the f/w
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*/
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static void
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bfa_cee_get_stats_isr(struct bfa_cee *cee, enum bfa_status status)
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{
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cee->get_stats_status = status;
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if (status == BFA_STATUS_OK) {
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memcpy(cee->stats, cee->stats_dma.kva,
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sizeof(struct bfa_cee_stats));
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bfa_cee_stats_swap(cee->stats);
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}
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cee->get_stats_pending = false;
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if (cee->cbfn.get_stats_cbfn)
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cee->cbfn.get_stats_cbfn(cee->cbfn.get_stats_cbarg, status);
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}
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/**
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* bfa_cee_reset_stats_isr - CEE ISR for reset-stats responses from f/w
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*
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* @cee: Input Pointer to the CEE module
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* @status: Return status from the f/w
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*/
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static void
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bfa_cee_reset_stats_isr(struct bfa_cee *cee, enum bfa_status status)
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{
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cee->reset_stats_status = status;
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cee->reset_stats_pending = false;
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if (cee->cbfn.reset_stats_cbfn)
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cee->cbfn.reset_stats_cbfn(cee->cbfn.reset_stats_cbarg, status);
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}
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/**
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* bfa_nw_cee_meminfo - Returns the size of the DMA memory needed by CEE module
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*/
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u32
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bfa_nw_cee_meminfo(void)
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{
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return bfa_cee_attr_meminfo() + bfa_cee_stats_meminfo();
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}
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/**
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* bfa_nw_cee_mem_claim - Initialized CEE DMA Memory
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*
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* @cee: CEE module pointer
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* @dma_kva: Kernel Virtual Address of CEE DMA Memory
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* @dma_pa: Physical Address of CEE DMA Memory
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*/
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void
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bfa_nw_cee_mem_claim(struct bfa_cee *cee, u8 *dma_kva, u64 dma_pa)
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{
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cee->attr_dma.kva = dma_kva;
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cee->attr_dma.pa = dma_pa;
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cee->stats_dma.kva = dma_kva + bfa_cee_attr_meminfo();
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cee->stats_dma.pa = dma_pa + bfa_cee_attr_meminfo();
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cee->attr = (struct bfa_cee_attr *) dma_kva;
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cee->stats = (struct bfa_cee_stats *)
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(dma_kva + bfa_cee_attr_meminfo());
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}
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/**
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* bfa_nw_cee_get_attr - Send the request to the f/w to fetch CEE attributes.
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*
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* @cee: Pointer to the CEE module data structure.
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* @attr: attribute requested
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* @cbfn: function pointer
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* @cbarg: function pointer arguments
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*
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* Return: status
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*/
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enum bfa_status
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bfa_nw_cee_get_attr(struct bfa_cee *cee, struct bfa_cee_attr *attr,
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bfa_cee_get_attr_cbfn_t cbfn, void *cbarg)
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{
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struct bfi_cee_get_req *cmd;
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BUG_ON(!((cee != NULL) && (cee->ioc != NULL)));
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if (!bfa_nw_ioc_is_operational(cee->ioc))
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return BFA_STATUS_IOC_FAILURE;
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if (cee->get_attr_pending)
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return BFA_STATUS_DEVBUSY;
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cee->get_attr_pending = true;
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cmd = (struct bfi_cee_get_req *) cee->get_cfg_mb.msg;
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cee->attr = attr;
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cee->cbfn.get_attr_cbfn = cbfn;
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cee->cbfn.get_attr_cbarg = cbarg;
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bfi_h2i_set(cmd->mh, BFI_MC_CEE, BFI_CEE_H2I_GET_CFG_REQ,
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bfa_ioc_portid(cee->ioc));
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bfa_dma_be_addr_set(cmd->dma_addr, cee->attr_dma.pa);
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bfa_nw_ioc_mbox_queue(cee->ioc, &cee->get_cfg_mb, NULL, NULL);
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return BFA_STATUS_OK;
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}
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/**
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* bfa_cee_isr - Handles Mail-box interrupts for CEE module.
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* @cbarg: argument passed containing pointer to the CEE module data structure.
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* @m: message pointer
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*/
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static void
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bfa_cee_isr(void *cbarg, struct bfi_mbmsg *m)
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{
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union bfi_cee_i2h_msg_u *msg;
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struct bfi_cee_get_rsp *get_rsp;
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struct bfa_cee *cee = (struct bfa_cee *) cbarg;
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msg = (union bfi_cee_i2h_msg_u *) m;
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get_rsp = (struct bfi_cee_get_rsp *) m;
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switch (msg->mh.msg_id) {
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case BFI_CEE_I2H_GET_CFG_RSP:
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bfa_cee_get_attr_isr(cee, get_rsp->cmd_status);
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break;
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case BFI_CEE_I2H_GET_STATS_RSP:
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bfa_cee_get_stats_isr(cee, get_rsp->cmd_status);
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break;
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case BFI_CEE_I2H_RESET_STATS_RSP:
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bfa_cee_reset_stats_isr(cee, get_rsp->cmd_status);
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break;
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default:
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BUG_ON(1);
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}
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}
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/**
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* bfa_cee_notify - CEE module heart-beat failure handler.
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*
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* @arg: argument passed containing pointer to the CEE module data structure.
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* @event: IOC event type
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*/
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static void
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bfa_cee_notify(void *arg, enum bfa_ioc_event event)
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{
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struct bfa_cee *cee;
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cee = (struct bfa_cee *) arg;
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switch (event) {
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case BFA_IOC_E_DISABLED:
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case BFA_IOC_E_FAILED:
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if (cee->get_attr_pending) {
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cee->get_attr_status = BFA_STATUS_FAILED;
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cee->get_attr_pending = false;
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if (cee->cbfn.get_attr_cbfn) {
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cee->cbfn.get_attr_cbfn(
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cee->cbfn.get_attr_cbarg,
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BFA_STATUS_FAILED);
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}
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}
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if (cee->get_stats_pending) {
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cee->get_stats_status = BFA_STATUS_FAILED;
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cee->get_stats_pending = false;
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if (cee->cbfn.get_stats_cbfn) {
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cee->cbfn.get_stats_cbfn(
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cee->cbfn.get_stats_cbarg,
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BFA_STATUS_FAILED);
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}
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}
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if (cee->reset_stats_pending) {
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cee->reset_stats_status = BFA_STATUS_FAILED;
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cee->reset_stats_pending = false;
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if (cee->cbfn.reset_stats_cbfn) {
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cee->cbfn.reset_stats_cbfn(
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cee->cbfn.reset_stats_cbarg,
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BFA_STATUS_FAILED);
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}
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}
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break;
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default:
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break;
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}
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}
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/**
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* bfa_nw_cee_attach - CEE module-attach API
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*
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* @cee: Pointer to the CEE module data structure
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* @ioc: Pointer to the ioc module data structure
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* @dev: Pointer to the device driver module data structure.
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* The device driver specific mbox ISR functions have
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* this pointer as one of the parameters.
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*/
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void
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bfa_nw_cee_attach(struct bfa_cee *cee, struct bfa_ioc *ioc,
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void *dev)
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{
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BUG_ON(!(cee != NULL));
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cee->dev = dev;
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cee->ioc = ioc;
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bfa_nw_ioc_mbox_regisr(cee->ioc, BFI_MC_CEE, bfa_cee_isr, cee);
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bfa_ioc_notify_init(&cee->ioc_notify, bfa_cee_notify, cee);
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bfa_nw_ioc_notify_register(cee->ioc, &cee->ioc_notify);
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}
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