mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-27 19:29:37 +00:00
![Ben Hutchings](/assets/img/avatar_default.png)
Convert doxygen (or similar) formatted comments to kernel-doc or unformatted comment. Delete a few that are content-free. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
287 lines
7.2 KiB
C
287 lines
7.2 KiB
C
/*
|
|
* Linux network driver for Brocade Converged Network Adapter.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU General Public License (GPL) Version 2 as
|
|
* published by the Free Software Foundation
|
|
*
|
|
* This program is distributed in the hope that it will be useful, but
|
|
* WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* General Public License for more details.
|
|
*/
|
|
/*
|
|
* Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
|
|
* All rights reserved
|
|
* www.brocade.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_attr_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_get_attr_isr()
|
|
*
|
|
* @brief CEE ISR for reset-stats responses from f/w
|
|
*
|
|
* @param[in] cee - Pointer to the CEE module
|
|
* status - Return status from the f/w
|
|
*
|
|
* @return void
|
|
*/
|
|
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_cee_get_attr - Send the request to the f/w to fetch CEE attributes.
|
|
*
|
|
* @cee: Pointer to the CEE module data structure.
|
|
*
|
|
* 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_isrs - Handles Mail-box interrupts for CEE module.
|
|
*/
|
|
|
|
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.
|
|
*
|
|
* @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_q_qe_init(&cee->ioc_notify);
|
|
bfa_ioc_notify_init(&cee->ioc_notify, bfa_cee_notify, cee);
|
|
bfa_nw_ioc_notify_register(cee->ioc, &cee->ioc_notify);
|
|
}
|