mirror of
https://github.com/torvalds/linux.git
synced 2024-12-05 18:41:23 +00:00
0eaae62aba
This patch changes several mempool users, all of which are basically just wrappers around kmalloc(), to use the common mempool_kmalloc/kfree, rather than their own wrapper function, removing a bunch of duplicated code. Signed-off-by: Matthew Dobson <colpatch@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
168 lines
5.2 KiB
C
168 lines
5.2 KiB
C
/*******************************************************************
|
|
* This file is part of the Emulex Linux Device Driver for *
|
|
* Fibre Channel Host Bus Adapters. *
|
|
* Copyright (C) 2004-2005 Emulex. All rights reserved. *
|
|
* EMULEX and SLI are trademarks of Emulex. *
|
|
* www.emulex.com *
|
|
* Portions Copyright (C) 2004-2005 Christoph Hellwig *
|
|
* *
|
|
* This program is free software; you can redistribute it and/or *
|
|
* modify it under the terms of version 2 of the GNU General *
|
|
* Public License as published by the Free Software Foundation. *
|
|
* This program is distributed in the hope that it will be useful. *
|
|
* ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
|
|
* WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
|
|
* FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
|
|
* DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
|
|
* TO BE LEGALLY INVALID. See the GNU General Public License for *
|
|
* more details, a copy of which can be found in the file COPYING *
|
|
* included with this package. *
|
|
*******************************************************************/
|
|
|
|
#include <linux/mempool.h>
|
|
#include <linux/pci.h>
|
|
#include <linux/interrupt.h>
|
|
|
|
#include <scsi/scsi_device.h>
|
|
#include <scsi/scsi_transport_fc.h>
|
|
|
|
#include <scsi/scsi.h>
|
|
|
|
#include "lpfc_hw.h"
|
|
#include "lpfc_sli.h"
|
|
#include "lpfc_disc.h"
|
|
#include "lpfc_scsi.h"
|
|
#include "lpfc.h"
|
|
#include "lpfc_crtn.h"
|
|
|
|
#define LPFC_MBUF_POOL_SIZE 64 /* max elements in MBUF safety pool */
|
|
#define LPFC_MEM_POOL_SIZE 64 /* max elem in non-DMA safety pool */
|
|
|
|
int
|
|
lpfc_mem_alloc(struct lpfc_hba * phba)
|
|
{
|
|
struct lpfc_dma_pool *pool = &phba->lpfc_mbuf_safety_pool;
|
|
int i;
|
|
|
|
phba->lpfc_scsi_dma_buf_pool = pci_pool_create("lpfc_scsi_dma_buf_pool",
|
|
phba->pcidev, phba->cfg_sg_dma_buf_size, 8, 0);
|
|
if (!phba->lpfc_scsi_dma_buf_pool)
|
|
goto fail;
|
|
|
|
phba->lpfc_mbuf_pool = pci_pool_create("lpfc_mbuf_pool", phba->pcidev,
|
|
LPFC_BPL_SIZE, 8,0);
|
|
if (!phba->lpfc_mbuf_pool)
|
|
goto fail_free_dma_buf_pool;
|
|
|
|
pool->elements = kmalloc(sizeof(struct lpfc_dmabuf) *
|
|
LPFC_MBUF_POOL_SIZE, GFP_KERNEL);
|
|
pool->max_count = 0;
|
|
pool->current_count = 0;
|
|
for ( i = 0; i < LPFC_MBUF_POOL_SIZE; i++) {
|
|
pool->elements[i].virt = pci_pool_alloc(phba->lpfc_mbuf_pool,
|
|
GFP_KERNEL, &pool->elements[i].phys);
|
|
if (!pool->elements[i].virt)
|
|
goto fail_free_mbuf_pool;
|
|
pool->max_count++;
|
|
pool->current_count++;
|
|
}
|
|
|
|
phba->mbox_mem_pool = mempool_create_kmalloc_pool(LPFC_MEM_POOL_SIZE,
|
|
sizeof(LPFC_MBOXQ_t));
|
|
if (!phba->mbox_mem_pool)
|
|
goto fail_free_mbuf_pool;
|
|
|
|
phba->nlp_mem_pool = mempool_create_kmalloc_pool(LPFC_MEM_POOL_SIZE,
|
|
sizeof(struct lpfc_nodelist));
|
|
if (!phba->nlp_mem_pool)
|
|
goto fail_free_mbox_pool;
|
|
|
|
return 0;
|
|
|
|
fail_free_mbox_pool:
|
|
mempool_destroy(phba->mbox_mem_pool);
|
|
fail_free_mbuf_pool:
|
|
while (--i)
|
|
pci_pool_free(phba->lpfc_mbuf_pool, pool->elements[i].virt,
|
|
pool->elements[i].phys);
|
|
kfree(pool->elements);
|
|
pci_pool_destroy(phba->lpfc_mbuf_pool);
|
|
fail_free_dma_buf_pool:
|
|
pci_pool_destroy(phba->lpfc_scsi_dma_buf_pool);
|
|
fail:
|
|
return -ENOMEM;
|
|
}
|
|
|
|
void
|
|
lpfc_mem_free(struct lpfc_hba * phba)
|
|
{
|
|
struct lpfc_sli *psli = &phba->sli;
|
|
struct lpfc_dma_pool *pool = &phba->lpfc_mbuf_safety_pool;
|
|
LPFC_MBOXQ_t *mbox, *next_mbox;
|
|
struct lpfc_dmabuf *mp;
|
|
int i;
|
|
|
|
list_for_each_entry_safe(mbox, next_mbox, &psli->mboxq, list) {
|
|
mp = (struct lpfc_dmabuf *) (mbox->context1);
|
|
if (mp) {
|
|
lpfc_mbuf_free(phba, mp->virt, mp->phys);
|
|
kfree(mp);
|
|
}
|
|
list_del(&mbox->list);
|
|
mempool_free(mbox, phba->mbox_mem_pool);
|
|
}
|
|
|
|
psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
|
|
if (psli->mbox_active) {
|
|
mbox = psli->mbox_active;
|
|
mp = (struct lpfc_dmabuf *) (mbox->context1);
|
|
if (mp) {
|
|
lpfc_mbuf_free(phba, mp->virt, mp->phys);
|
|
kfree(mp);
|
|
}
|
|
mempool_free(mbox, phba->mbox_mem_pool);
|
|
psli->mbox_active = NULL;
|
|
}
|
|
|
|
for (i = 0; i < pool->current_count; i++)
|
|
pci_pool_free(phba->lpfc_mbuf_pool, pool->elements[i].virt,
|
|
pool->elements[i].phys);
|
|
kfree(pool->elements);
|
|
mempool_destroy(phba->nlp_mem_pool);
|
|
mempool_destroy(phba->mbox_mem_pool);
|
|
|
|
pci_pool_destroy(phba->lpfc_scsi_dma_buf_pool);
|
|
pci_pool_destroy(phba->lpfc_mbuf_pool);
|
|
}
|
|
|
|
void *
|
|
lpfc_mbuf_alloc(struct lpfc_hba *phba, int mem_flags, dma_addr_t *handle)
|
|
{
|
|
struct lpfc_dma_pool *pool = &phba->lpfc_mbuf_safety_pool;
|
|
void *ret;
|
|
|
|
ret = pci_pool_alloc(phba->lpfc_mbuf_pool, GFP_KERNEL, handle);
|
|
|
|
if (!ret && ( mem_flags & MEM_PRI) && pool->current_count) {
|
|
pool->current_count--;
|
|
ret = pool->elements[pool->current_count].virt;
|
|
*handle = pool->elements[pool->current_count].phys;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
void
|
|
lpfc_mbuf_free(struct lpfc_hba * phba, void *virt, dma_addr_t dma)
|
|
{
|
|
struct lpfc_dma_pool *pool = &phba->lpfc_mbuf_safety_pool;
|
|
|
|
if (pool->current_count < pool->max_count) {
|
|
pool->elements[pool->current_count].virt = virt;
|
|
pool->elements[pool->current_count].phys = dma;
|
|
pool->current_count++;
|
|
} else {
|
|
pci_pool_free(phba->lpfc_mbuf_pool, virt, dma);
|
|
}
|
|
return;
|
|
}
|