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