lpfc_mem.c revision 19ca760979e4be41a3eb215fb8d0e96637161947
1dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>/******************************************************************* 2dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> * This file is part of the Emulex Linux Device Driver for * 3c44ce1737438d20ac58e808897e3f8eb015c66d3James.Smart@Emulex.Com * Fibre Channel Host Bus Adapters. * 4d8e93df13c8f7bde45a7756944aab528c58df4cfJames Smart * Copyright (C) 2004-2009 Emulex. All rights reserved. * 5c44ce1737438d20ac58e808897e3f8eb015c66d3James.Smart@Emulex.Com * EMULEX and SLI are trademarks of Emulex. * 6dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> * www.emulex.com * 7c44ce1737438d20ac58e808897e3f8eb015c66d3James.Smart@Emulex.Com * Portions Copyright (C) 2004-2005 Christoph Hellwig * 8dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> * * 9dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> * This program is free software; you can redistribute it and/or * 10c44ce1737438d20ac58e808897e3f8eb015c66d3James.Smart@Emulex.Com * modify it under the terms of version 2 of the GNU General * 11c44ce1737438d20ac58e808897e3f8eb015c66d3James.Smart@Emulex.Com * Public License as published by the Free Software Foundation. * 12c44ce1737438d20ac58e808897e3f8eb015c66d3James.Smart@Emulex.Com * This program is distributed in the hope that it will be useful. * 13c44ce1737438d20ac58e808897e3f8eb015c66d3James.Smart@Emulex.Com * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * 14c44ce1737438d20ac58e808897e3f8eb015c66d3James.Smart@Emulex.Com * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * 15c44ce1737438d20ac58e808897e3f8eb015c66d3James.Smart@Emulex.Com * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * 16c44ce1737438d20ac58e808897e3f8eb015c66d3James.Smart@Emulex.Com * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * 17c44ce1737438d20ac58e808897e3f8eb015c66d3James.Smart@Emulex.Com * TO BE LEGALLY INVALID. See the GNU General Public License for * 18c44ce1737438d20ac58e808897e3f8eb015c66d3James.Smart@Emulex.Com * more details, a copy of which can be found in the file COPYING * 19c44ce1737438d20ac58e808897e3f8eb015c66d3James.Smart@Emulex.Com * included with this package. * 20dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> *******************************************************************/ 21dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> 22dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>#include <linux/mempool.h> 235a0e3ad6af8660be21ca98a971cd00f331318c05Tejun Heo#include <linux/slab.h> 24dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>#include <linux/pci.h> 25dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>#include <linux/interrupt.h> 26dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> 27f888ba3ce77c66bece3d804caf7d559838209a4aJames.Smart@Emulex.Com#include <scsi/scsi_device.h> 28f888ba3ce77c66bece3d804caf7d559838209a4aJames.Smart@Emulex.Com#include <scsi/scsi_transport_fc.h> 29f888ba3ce77c66bece3d804caf7d559838209a4aJames.Smart@Emulex.Com 30918865230e55b1fece2d8edec39d46c00626590bJames.Smart@Emulex.Com#include <scsi/scsi.h> 31918865230e55b1fece2d8edec39d46c00626590bJames.Smart@Emulex.Com 32da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart#include "lpfc_hw4.h" 33dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>#include "lpfc_hw.h" 34dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>#include "lpfc_sli.h" 35da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart#include "lpfc_sli4.h" 36ea2151b4e142fa2de0319d9dd80413a997bf435aJames Smart#include "lpfc_nl.h" 37dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>#include "lpfc_disc.h" 38dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>#include "lpfc_scsi.h" 39dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>#include "lpfc.h" 40dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>#include "lpfc_crtn.h" 41dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> 42dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>#define LPFC_MBUF_POOL_SIZE 64 /* max elements in MBUF safety pool */ 43dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>#define LPFC_MEM_POOL_SIZE 64 /* max elem in non-DMA safety pool */ 44dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> 452e0fef85e098f6794956b8b80b111179fbb4cbb7James Smart 46e59058c44025d71c9b7f260076a932935d3bba95James Smart/** 473621a710a7dbb2d22a8e95d94bcf0c2d13ef57fcJames Smart * lpfc_mem_alloc - create and allocate all PCI and memory pools 48e59058c44025d71c9b7f260076a932935d3bba95James Smart * @phba: HBA to allocate pools for 49e59058c44025d71c9b7f260076a932935d3bba95James Smart * 50e59058c44025d71c9b7f260076a932935d3bba95James Smart * Description: Creates and allocates PCI pools lpfc_scsi_dma_buf_pool, 51da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * lpfc_mbuf_pool, lpfc_hrb_pool. Creates and allocates kmalloc-backed mempools 52e59058c44025d71c9b7f260076a932935d3bba95James Smart * for LPFC_MBOXQ_t and lpfc_nodelist. Also allocates the VPI bitmask. 53e59058c44025d71c9b7f260076a932935d3bba95James Smart * 54e59058c44025d71c9b7f260076a932935d3bba95James Smart * Notes: Not interrupt-safe. Must be called with no locks held. If any 55e59058c44025d71c9b7f260076a932935d3bba95James Smart * allocation fails, frees all successfully allocated memory before returning. 56e59058c44025d71c9b7f260076a932935d3bba95James Smart * 57e59058c44025d71c9b7f260076a932935d3bba95James Smart * Returns: 58e59058c44025d71c9b7f260076a932935d3bba95James Smart * 0 on success 59e59058c44025d71c9b7f260076a932935d3bba95James Smart * -ENOMEM on failure (if any memory allocations fail) 60e59058c44025d71c9b7f260076a932935d3bba95James Smart **/ 61dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>int 62da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smartlpfc_mem_alloc(struct lpfc_hba *phba, int align) 63dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>{ 64dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> struct lpfc_dma_pool *pool = &phba->lpfc_mbuf_safety_pool; 6592d7f7b0cde3ad2260e7462b40867b57efd49851James Smart int longs; 66dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> int i; 67dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> 68da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart if (phba->sli_rev == LPFC_SLI_REV4) 69da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart phba->lpfc_scsi_dma_buf_pool = 70da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart pci_pool_create("lpfc_scsi_dma_buf_pool", 71da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart phba->pcidev, 72da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart phba->cfg_sg_dma_buf_size, 73da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart phba->cfg_sg_dma_buf_size, 74da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart 0); 75da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart else 76da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart phba->lpfc_scsi_dma_buf_pool = 77da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart pci_pool_create("lpfc_scsi_dma_buf_pool", 78da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart phba->pcidev, phba->cfg_sg_dma_buf_size, 79da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart align, 0); 80dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> if (!phba->lpfc_scsi_dma_buf_pool) 81dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> goto fail; 82dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> 83dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> phba->lpfc_mbuf_pool = pci_pool_create("lpfc_mbuf_pool", phba->pcidev, 84da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart LPFC_BPL_SIZE, 85da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart align, 0); 86dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> if (!phba->lpfc_mbuf_pool) 87dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> goto fail_free_dma_buf_pool; 88dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> 89dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> pool->elements = kmalloc(sizeof(struct lpfc_dmabuf) * 90dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> LPFC_MBUF_POOL_SIZE, GFP_KERNEL); 91a96e0c7798057dd8055d0263c076fed975c10237Mariusz Kozlowski if (!pool->elements) 92a96e0c7798057dd8055d0263c076fed975c10237Mariusz Kozlowski goto fail_free_lpfc_mbuf_pool; 93a96e0c7798057dd8055d0263c076fed975c10237Mariusz Kozlowski 94dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> pool->max_count = 0; 95dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> pool->current_count = 0; 96dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> for ( i = 0; i < LPFC_MBUF_POOL_SIZE; i++) { 97dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> pool->elements[i].virt = pci_pool_alloc(phba->lpfc_mbuf_pool, 98dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> GFP_KERNEL, &pool->elements[i].phys); 99dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> if (!pool->elements[i].virt) 100dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> goto fail_free_mbuf_pool; 101dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> pool->max_count++; 102dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> pool->current_count++; 103dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> } 104dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> 1050eaae62abaa1ad1f231932b6cdd9fb1b91df6651Matthew Dobson phba->mbox_mem_pool = mempool_create_kmalloc_pool(LPFC_MEM_POOL_SIZE, 1060eaae62abaa1ad1f231932b6cdd9fb1b91df6651Matthew Dobson sizeof(LPFC_MBOXQ_t)); 107dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> if (!phba->mbox_mem_pool) 108dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> goto fail_free_mbuf_pool; 109dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> 1100eaae62abaa1ad1f231932b6cdd9fb1b91df6651Matthew Dobson phba->nlp_mem_pool = mempool_create_kmalloc_pool(LPFC_MEM_POOL_SIZE, 1110eaae62abaa1ad1f231932b6cdd9fb1b91df6651Matthew Dobson sizeof(struct lpfc_nodelist)); 112dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> if (!phba->nlp_mem_pool) 113dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> goto fail_free_mbox_pool; 1148568a4d2495ebcf5da38a2141c7633399143b1a5James Smart 1158568a4d2495ebcf5da38a2141c7633399143b1a5James Smart if (phba->sli_rev == LPFC_SLI_REV4) { 11619ca760979e4be41a3eb215fb8d0e96637161947James Smart phba->rrq_pool = 11719ca760979e4be41a3eb215fb8d0e96637161947James Smart mempool_create_kmalloc_pool(LPFC_MEM_POOL_SIZE, 11819ca760979e4be41a3eb215fb8d0e96637161947James Smart sizeof(struct lpfc_node_rrq)); 11919ca760979e4be41a3eb215fb8d0e96637161947James Smart if (!phba->rrq_pool) 12019ca760979e4be41a3eb215fb8d0e96637161947James Smart goto fail_free_nlp_mem_pool; 1218568a4d2495ebcf5da38a2141c7633399143b1a5James Smart phba->lpfc_hrb_pool = pci_pool_create("lpfc_hrb_pool", 122da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart phba->pcidev, 123da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart LPFC_HDR_BUF_SIZE, align, 0); 1248568a4d2495ebcf5da38a2141c7633399143b1a5James Smart if (!phba->lpfc_hrb_pool) 12519ca760979e4be41a3eb215fb8d0e96637161947James Smart goto fail_free_rrq_mem_pool; 1268568a4d2495ebcf5da38a2141c7633399143b1a5James Smart 1278568a4d2495ebcf5da38a2141c7633399143b1a5James Smart phba->lpfc_drb_pool = pci_pool_create("lpfc_drb_pool", 128da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart phba->pcidev, 129da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart LPFC_DATA_BUF_SIZE, align, 0); 1308568a4d2495ebcf5da38a2141c7633399143b1a5James Smart if (!phba->lpfc_drb_pool) 1318568a4d2495ebcf5da38a2141c7633399143b1a5James Smart goto fail_free_hrb_pool; 1328568a4d2495ebcf5da38a2141c7633399143b1a5James Smart phba->lpfc_hbq_pool = NULL; 1338568a4d2495ebcf5da38a2141c7633399143b1a5James Smart } else { 1348568a4d2495ebcf5da38a2141c7633399143b1a5James Smart phba->lpfc_hbq_pool = pci_pool_create("lpfc_hbq_pool", 1358568a4d2495ebcf5da38a2141c7633399143b1a5James Smart phba->pcidev, LPFC_BPL_SIZE, align, 0); 1368568a4d2495ebcf5da38a2141c7633399143b1a5James Smart if (!phba->lpfc_hbq_pool) 1378568a4d2495ebcf5da38a2141c7633399143b1a5James Smart goto fail_free_nlp_mem_pool; 1388568a4d2495ebcf5da38a2141c7633399143b1a5James Smart phba->lpfc_hrb_pool = NULL; 1398568a4d2495ebcf5da38a2141c7633399143b1a5James Smart phba->lpfc_drb_pool = NULL; 1408568a4d2495ebcf5da38a2141c7633399143b1a5James Smart } 141858c9f6c19c6f9bf86cbbc64ce0d17c61d6131b8James Smart /* vpi zero is reserved for the physical port so add 1 to max */ 142858c9f6c19c6f9bf86cbbc64ce0d17c61d6131b8James Smart longs = ((phba->max_vpi + 1) + BITS_PER_LONG - 1) / BITS_PER_LONG; 14392d7f7b0cde3ad2260e7462b40867b57efd49851James Smart phba->vpi_bmask = kzalloc(longs * sizeof(unsigned long), GFP_KERNEL); 14492d7f7b0cde3ad2260e7462b40867b57efd49851James Smart if (!phba->vpi_bmask) 145da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart goto fail_free_dbq_pool; 14692d7f7b0cde3ad2260e7462b40867b57efd49851James Smart 147dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> return 0; 148dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> 149da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart fail_free_dbq_pool: 150da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart pci_pool_destroy(phba->lpfc_drb_pool); 151da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart phba->lpfc_drb_pool = NULL; 1528568a4d2495ebcf5da38a2141c7633399143b1a5James Smart fail_free_hrb_pool: 153da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart pci_pool_destroy(phba->lpfc_hrb_pool); 154da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart phba->lpfc_hrb_pool = NULL; 15519ca760979e4be41a3eb215fb8d0e96637161947James Smart fail_free_rrq_mem_pool: 15619ca760979e4be41a3eb215fb8d0e96637161947James Smart mempool_destroy(phba->rrq_pool); 15719ca760979e4be41a3eb215fb8d0e96637161947James Smart phba->rrq_pool = NULL; 158ed957684294618602b48f1950b0c9bbcb036583fJames Smart fail_free_nlp_mem_pool: 159ed957684294618602b48f1950b0c9bbcb036583fJames Smart mempool_destroy(phba->nlp_mem_pool); 160ed957684294618602b48f1950b0c9bbcb036583fJames Smart phba->nlp_mem_pool = NULL; 161dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> fail_free_mbox_pool: 162dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> mempool_destroy(phba->mbox_mem_pool); 1632e0fef85e098f6794956b8b80b111179fbb4cbb7James Smart phba->mbox_mem_pool = NULL; 164dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> fail_free_mbuf_pool: 165a96e0c7798057dd8055d0263c076fed975c10237Mariusz Kozlowski while (i--) 166dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> pci_pool_free(phba->lpfc_mbuf_pool, pool->elements[i].virt, 167dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> pool->elements[i].phys); 168dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> kfree(pool->elements); 169a96e0c7798057dd8055d0263c076fed975c10237Mariusz Kozlowski fail_free_lpfc_mbuf_pool: 170dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> pci_pool_destroy(phba->lpfc_mbuf_pool); 1712e0fef85e098f6794956b8b80b111179fbb4cbb7James Smart phba->lpfc_mbuf_pool = NULL; 172dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> fail_free_dma_buf_pool: 173dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> pci_pool_destroy(phba->lpfc_scsi_dma_buf_pool); 1742e0fef85e098f6794956b8b80b111179fbb4cbb7James Smart phba->lpfc_scsi_dma_buf_pool = NULL; 175dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> fail: 176dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> return -ENOMEM; 177dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>} 178dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> 179e59058c44025d71c9b7f260076a932935d3bba95James Smart/** 180da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * lpfc_mem_free - Frees memory allocated by lpfc_mem_alloc 181e59058c44025d71c9b7f260076a932935d3bba95James Smart * @phba: HBA to free memory for 182e59058c44025d71c9b7f260076a932935d3bba95James Smart * 183da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * Description: Free the memory allocated by lpfc_mem_alloc routine. This 184da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * routine is a the counterpart of lpfc_mem_alloc. 185e59058c44025d71c9b7f260076a932935d3bba95James Smart * 186e59058c44025d71c9b7f260076a932935d3bba95James Smart * Returns: None 187e59058c44025d71c9b7f260076a932935d3bba95James Smart **/ 188dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>void 189da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smartlpfc_mem_free(struct lpfc_hba *phba) 190dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>{ 191dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> int i; 192da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart struct lpfc_dma_pool *pool = &phba->lpfc_mbuf_safety_pool; 193dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> 194da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart /* Free VPI bitmask memory */ 19592d7f7b0cde3ad2260e7462b40867b57efd49851James Smart kfree(phba->vpi_bmask); 196da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart 197da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart /* Free HBQ pools */ 198ed957684294618602b48f1950b0c9bbcb036583fJames Smart lpfc_sli_hbqbuf_free_all(phba); 1998568a4d2495ebcf5da38a2141c7633399143b1a5James Smart if (phba->lpfc_drb_pool) 2008568a4d2495ebcf5da38a2141c7633399143b1a5James Smart pci_pool_destroy(phba->lpfc_drb_pool); 201da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart phba->lpfc_drb_pool = NULL; 2028568a4d2495ebcf5da38a2141c7633399143b1a5James Smart if (phba->lpfc_hrb_pool) 2038568a4d2495ebcf5da38a2141c7633399143b1a5James Smart pci_pool_destroy(phba->lpfc_hrb_pool); 204da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart phba->lpfc_hrb_pool = NULL; 205da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart 2068568a4d2495ebcf5da38a2141c7633399143b1a5James Smart if (phba->lpfc_hbq_pool) 2078568a4d2495ebcf5da38a2141c7633399143b1a5James Smart pci_pool_destroy(phba->lpfc_hbq_pool); 2088568a4d2495ebcf5da38a2141c7633399143b1a5James Smart phba->lpfc_hbq_pool = NULL; 2098568a4d2495ebcf5da38a2141c7633399143b1a5James Smart 210da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart /* Free NLP memory pool */ 211da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart mempool_destroy(phba->nlp_mem_pool); 212da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart phba->nlp_mem_pool = NULL; 213da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart 214da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart /* Free mbox memory pool */ 215da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart mempool_destroy(phba->mbox_mem_pool); 216da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart phba->mbox_mem_pool = NULL; 217da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart 218da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart /* Free MBUF memory pool */ 219da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart for (i = 0; i < pool->current_count; i++) 220da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart pci_pool_free(phba->lpfc_mbuf_pool, pool->elements[i].virt, 221da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart pool->elements[i].phys); 222da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart kfree(pool->elements); 223da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart 224da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart pci_pool_destroy(phba->lpfc_mbuf_pool); 225da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart phba->lpfc_mbuf_pool = NULL; 226ed957684294618602b48f1950b0c9bbcb036583fJames Smart 227da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart /* Free DMA buffer memory pool */ 228da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart pci_pool_destroy(phba->lpfc_scsi_dma_buf_pool); 229da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart phba->lpfc_scsi_dma_buf_pool = NULL; 230da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart 231da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart return; 232da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart} 233da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart 234da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart/** 235da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * lpfc_mem_free_all - Frees all PCI and driver memory 236da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * @phba: HBA to free memory for 237da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * 238da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * Description: Free memory from PCI and driver memory pools and also those 239da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * used : lpfc_scsi_dma_buf_pool, lpfc_mbuf_pool, lpfc_hrb_pool. Frees 240da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * kmalloc-backed mempools for LPFC_MBOXQ_t and lpfc_nodelist. Also frees 241da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * the VPI bitmask. 242da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * 243da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * Returns: None 244da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart **/ 245da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smartvoid 246da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smartlpfc_mem_free_all(struct lpfc_hba *phba) 247da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart{ 248da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart struct lpfc_sli *psli = &phba->sli; 249da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart LPFC_MBOXQ_t *mbox, *next_mbox; 250da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart struct lpfc_dmabuf *mp; 251da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart 252da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart /* Free memory used in mailbox queue back to mailbox memory pool */ 253dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> list_for_each_entry_safe(mbox, next_mbox, &psli->mboxq, list) { 254dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> mp = (struct lpfc_dmabuf *) (mbox->context1); 255dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> if (mp) { 256dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> lpfc_mbuf_free(phba, mp->virt, mp->phys); 257dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> kfree(mp); 258dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> } 259dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> list_del(&mbox->list); 260dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> mempool_free(mbox, phba->mbox_mem_pool); 261dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> } 262da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart /* Free memory used in mailbox cmpl list back to mailbox memory pool */ 26392d7f7b0cde3ad2260e7462b40867b57efd49851James Smart list_for_each_entry_safe(mbox, next_mbox, &psli->mboxq_cmpl, list) { 26492d7f7b0cde3ad2260e7462b40867b57efd49851James Smart mp = (struct lpfc_dmabuf *) (mbox->context1); 26592d7f7b0cde3ad2260e7462b40867b57efd49851James Smart if (mp) { 26692d7f7b0cde3ad2260e7462b40867b57efd49851James Smart lpfc_mbuf_free(phba, mp->virt, mp->phys); 26792d7f7b0cde3ad2260e7462b40867b57efd49851James Smart kfree(mp); 26892d7f7b0cde3ad2260e7462b40867b57efd49851James Smart } 26992d7f7b0cde3ad2260e7462b40867b57efd49851James Smart list_del(&mbox->list); 27092d7f7b0cde3ad2260e7462b40867b57efd49851James Smart mempool_free(mbox, phba->mbox_mem_pool); 27192d7f7b0cde3ad2260e7462b40867b57efd49851James Smart } 272da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart /* Free the active mailbox command back to the mailbox memory pool */ 273da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart spin_lock_irq(&phba->hbalock); 274dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; 275da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart spin_unlock_irq(&phba->hbalock); 276dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> if (psli->mbox_active) { 277dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> mbox = psli->mbox_active; 278dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> mp = (struct lpfc_dmabuf *) (mbox->context1); 279dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> if (mp) { 280dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> lpfc_mbuf_free(phba, mp->virt, mp->phys); 281dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> kfree(mp); 282dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> } 283dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> mempool_free(mbox, phba->mbox_mem_pool); 284dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> psli->mbox_active = NULL; 285dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> } 286dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> 287da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart /* Free and destroy all the allocated memory pools */ 288da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart lpfc_mem_free(phba); 2892e0fef85e098f6794956b8b80b111179fbb4cbb7James Smart 290e59058c44025d71c9b7f260076a932935d3bba95James Smart /* Free the iocb lookup array */ 2919f49d3b05f092b89e774be20c654ceb0c64a7d19James Smart kfree(psli->iocbq_lookup); 2929f49d3b05f092b89e774be20c654ceb0c64a7d19James Smart psli->iocbq_lookup = NULL; 293da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart 294da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart return; 295dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>} 296dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> 297e59058c44025d71c9b7f260076a932935d3bba95James Smart/** 2983621a710a7dbb2d22a8e95d94bcf0c2d13ef57fcJames Smart * lpfc_mbuf_alloc - Allocate an mbuf from the lpfc_mbuf_pool PCI pool 299e59058c44025d71c9b7f260076a932935d3bba95James Smart * @phba: HBA which owns the pool to allocate from 300e59058c44025d71c9b7f260076a932935d3bba95James Smart * @mem_flags: indicates if this is a priority (MEM_PRI) allocation 301e59058c44025d71c9b7f260076a932935d3bba95James Smart * @handle: used to return the DMA-mapped address of the mbuf 302e59058c44025d71c9b7f260076a932935d3bba95James Smart * 303e59058c44025d71c9b7f260076a932935d3bba95James Smart * Description: Allocates a DMA-mapped buffer from the lpfc_mbuf_pool PCI pool. 304e59058c44025d71c9b7f260076a932935d3bba95James Smart * Allocates from generic pci_pool_alloc function first and if that fails and 305e59058c44025d71c9b7f260076a932935d3bba95James Smart * mem_flags has MEM_PRI set (the only defined flag), returns an mbuf from the 306e59058c44025d71c9b7f260076a932935d3bba95James Smart * HBA's pool. 307e59058c44025d71c9b7f260076a932935d3bba95James Smart * 308e59058c44025d71c9b7f260076a932935d3bba95James Smart * Notes: Not interrupt-safe. Must be called with no locks held. Takes 309e59058c44025d71c9b7f260076a932935d3bba95James Smart * phba->hbalock. 310e59058c44025d71c9b7f260076a932935d3bba95James Smart * 311e59058c44025d71c9b7f260076a932935d3bba95James Smart * Returns: 312e59058c44025d71c9b7f260076a932935d3bba95James Smart * pointer to the allocated mbuf on success 313e59058c44025d71c9b7f260076a932935d3bba95James Smart * NULL on failure 314e59058c44025d71c9b7f260076a932935d3bba95James Smart **/ 315dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>void * 316dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>lpfc_mbuf_alloc(struct lpfc_hba *phba, int mem_flags, dma_addr_t *handle) 317dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>{ 318dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> struct lpfc_dma_pool *pool = &phba->lpfc_mbuf_safety_pool; 3192e0fef85e098f6794956b8b80b111179fbb4cbb7James Smart unsigned long iflags; 320dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> void *ret; 321dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> 322dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> ret = pci_pool_alloc(phba->lpfc_mbuf_pool, GFP_KERNEL, handle); 323dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> 3242e0fef85e098f6794956b8b80b111179fbb4cbb7James Smart spin_lock_irqsave(&phba->hbalock, iflags); 32592d7f7b0cde3ad2260e7462b40867b57efd49851James Smart if (!ret && (mem_flags & MEM_PRI) && pool->current_count) { 326dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> pool->current_count--; 327dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> ret = pool->elements[pool->current_count].virt; 328dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> *handle = pool->elements[pool->current_count].phys; 329dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> } 3302e0fef85e098f6794956b8b80b111179fbb4cbb7James Smart spin_unlock_irqrestore(&phba->hbalock, iflags); 331dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> return ret; 332dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>} 333dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> 334e59058c44025d71c9b7f260076a932935d3bba95James Smart/** 3353621a710a7dbb2d22a8e95d94bcf0c2d13ef57fcJames Smart * __lpfc_mbuf_free - Free an mbuf from the lpfc_mbuf_pool PCI pool (locked) 336e59058c44025d71c9b7f260076a932935d3bba95James Smart * @phba: HBA which owns the pool to return to 337e59058c44025d71c9b7f260076a932935d3bba95James Smart * @virt: mbuf to free 338e59058c44025d71c9b7f260076a932935d3bba95James Smart * @dma: the DMA-mapped address of the lpfc_mbuf_pool to be freed 339e59058c44025d71c9b7f260076a932935d3bba95James Smart * 340e59058c44025d71c9b7f260076a932935d3bba95James Smart * Description: Returns an mbuf lpfc_mbuf_pool to the lpfc_mbuf_safety_pool if 341e59058c44025d71c9b7f260076a932935d3bba95James Smart * it is below its max_count, frees the mbuf otherwise. 342e59058c44025d71c9b7f260076a932935d3bba95James Smart * 343e59058c44025d71c9b7f260076a932935d3bba95James Smart * Notes: Must be called with phba->hbalock held to synchronize access to 344e59058c44025d71c9b7f260076a932935d3bba95James Smart * lpfc_mbuf_safety_pool. 345e59058c44025d71c9b7f260076a932935d3bba95James Smart * 346e59058c44025d71c9b7f260076a932935d3bba95James Smart * Returns: None 347e59058c44025d71c9b7f260076a932935d3bba95James Smart **/ 348dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>void 3492e0fef85e098f6794956b8b80b111179fbb4cbb7James Smart__lpfc_mbuf_free(struct lpfc_hba * phba, void *virt, dma_addr_t dma) 350dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>{ 351dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> struct lpfc_dma_pool *pool = &phba->lpfc_mbuf_safety_pool; 352dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> 353dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> if (pool->current_count < pool->max_count) { 354dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> pool->elements[pool->current_count].virt = virt; 355dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> pool->elements[pool->current_count].phys = dma; 356dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> pool->current_count++; 357dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> } else { 358dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> pci_pool_free(phba->lpfc_mbuf_pool, virt, dma); 359dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> } 360dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> return; 361dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>} 3622e0fef85e098f6794956b8b80b111179fbb4cbb7James Smart 363e59058c44025d71c9b7f260076a932935d3bba95James Smart/** 3643621a710a7dbb2d22a8e95d94bcf0c2d13ef57fcJames Smart * lpfc_mbuf_free - Free an mbuf from the lpfc_mbuf_pool PCI pool (unlocked) 365e59058c44025d71c9b7f260076a932935d3bba95James Smart * @phba: HBA which owns the pool to return to 366e59058c44025d71c9b7f260076a932935d3bba95James Smart * @virt: mbuf to free 367e59058c44025d71c9b7f260076a932935d3bba95James Smart * @dma: the DMA-mapped address of the lpfc_mbuf_pool to be freed 368e59058c44025d71c9b7f260076a932935d3bba95James Smart * 369e59058c44025d71c9b7f260076a932935d3bba95James Smart * Description: Returns an mbuf lpfc_mbuf_pool to the lpfc_mbuf_safety_pool if 370e59058c44025d71c9b7f260076a932935d3bba95James Smart * it is below its max_count, frees the mbuf otherwise. 371e59058c44025d71c9b7f260076a932935d3bba95James Smart * 372e59058c44025d71c9b7f260076a932935d3bba95James Smart * Notes: Takes phba->hbalock. Can be called with or without other locks held. 373e59058c44025d71c9b7f260076a932935d3bba95James Smart * 374e59058c44025d71c9b7f260076a932935d3bba95James Smart * Returns: None 375e59058c44025d71c9b7f260076a932935d3bba95James Smart **/ 3762e0fef85e098f6794956b8b80b111179fbb4cbb7James Smartvoid 3772e0fef85e098f6794956b8b80b111179fbb4cbb7James Smartlpfc_mbuf_free(struct lpfc_hba * phba, void *virt, dma_addr_t dma) 3782e0fef85e098f6794956b8b80b111179fbb4cbb7James Smart{ 3792e0fef85e098f6794956b8b80b111179fbb4cbb7James Smart unsigned long iflags; 3802e0fef85e098f6794956b8b80b111179fbb4cbb7James Smart 3812e0fef85e098f6794956b8b80b111179fbb4cbb7James Smart spin_lock_irqsave(&phba->hbalock, iflags); 3822e0fef85e098f6794956b8b80b111179fbb4cbb7James Smart __lpfc_mbuf_free(phba, virt, dma); 3832e0fef85e098f6794956b8b80b111179fbb4cbb7James Smart spin_unlock_irqrestore(&phba->hbalock, iflags); 3842e0fef85e098f6794956b8b80b111179fbb4cbb7James Smart return; 3852e0fef85e098f6794956b8b80b111179fbb4cbb7James Smart} 386ed957684294618602b48f1950b0c9bbcb036583fJames Smart 387e59058c44025d71c9b7f260076a932935d3bba95James Smart/** 3883621a710a7dbb2d22a8e95d94bcf0c2d13ef57fcJames Smart * lpfc_els_hbq_alloc - Allocate an HBQ buffer 389e59058c44025d71c9b7f260076a932935d3bba95James Smart * @phba: HBA to allocate HBQ buffer for 390e59058c44025d71c9b7f260076a932935d3bba95James Smart * 391da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * Description: Allocates a DMA-mapped HBQ buffer from the lpfc_hrb_pool PCI 392e59058c44025d71c9b7f260076a932935d3bba95James Smart * pool along a non-DMA-mapped container for it. 393e59058c44025d71c9b7f260076a932935d3bba95James Smart * 394e59058c44025d71c9b7f260076a932935d3bba95James Smart * Notes: Not interrupt-safe. Must be called with no locks held. 395e59058c44025d71c9b7f260076a932935d3bba95James Smart * 396e59058c44025d71c9b7f260076a932935d3bba95James Smart * Returns: 397e59058c44025d71c9b7f260076a932935d3bba95James Smart * pointer to HBQ on success 398e59058c44025d71c9b7f260076a932935d3bba95James Smart * NULL on failure 399e59058c44025d71c9b7f260076a932935d3bba95James Smart **/ 40051ef4c26891a734bc8416b639ad460a8162926bcJames Smartstruct hbq_dmabuf * 40151ef4c26891a734bc8416b639ad460a8162926bcJames Smartlpfc_els_hbq_alloc(struct lpfc_hba *phba) 402ed957684294618602b48f1950b0c9bbcb036583fJames Smart{ 40351ef4c26891a734bc8416b639ad460a8162926bcJames Smart struct hbq_dmabuf *hbqbp; 40451ef4c26891a734bc8416b639ad460a8162926bcJames Smart 40551ef4c26891a734bc8416b639ad460a8162926bcJames Smart hbqbp = kmalloc(sizeof(struct hbq_dmabuf), GFP_KERNEL); 40651ef4c26891a734bc8416b639ad460a8162926bcJames Smart if (!hbqbp) 40751ef4c26891a734bc8416b639ad460a8162926bcJames Smart return NULL; 40851ef4c26891a734bc8416b639ad460a8162926bcJames Smart 4098568a4d2495ebcf5da38a2141c7633399143b1a5James Smart hbqbp->dbuf.virt = pci_pool_alloc(phba->lpfc_hbq_pool, GFP_KERNEL, 41051ef4c26891a734bc8416b639ad460a8162926bcJames Smart &hbqbp->dbuf.phys); 41151ef4c26891a734bc8416b639ad460a8162926bcJames Smart if (!hbqbp->dbuf.virt) { 41251ef4c26891a734bc8416b639ad460a8162926bcJames Smart kfree(hbqbp); 41351ef4c26891a734bc8416b639ad460a8162926bcJames Smart return NULL; 41451ef4c26891a734bc8416b639ad460a8162926bcJames Smart } 41551ef4c26891a734bc8416b639ad460a8162926bcJames Smart hbqbp->size = LPFC_BPL_SIZE; 41651ef4c26891a734bc8416b639ad460a8162926bcJames Smart return hbqbp; 417ed957684294618602b48f1950b0c9bbcb036583fJames Smart} 418ed957684294618602b48f1950b0c9bbcb036583fJames Smart 419e59058c44025d71c9b7f260076a932935d3bba95James Smart/** 420da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * lpfc_els_hbq_free - Frees an HBQ buffer allocated with lpfc_els_hbq_alloc 421e59058c44025d71c9b7f260076a932935d3bba95James Smart * @phba: HBA buffer was allocated for 422e59058c44025d71c9b7f260076a932935d3bba95James Smart * @hbqbp: HBQ container returned by lpfc_els_hbq_alloc 423e59058c44025d71c9b7f260076a932935d3bba95James Smart * 424e59058c44025d71c9b7f260076a932935d3bba95James Smart * Description: Frees both the container and the DMA-mapped buffer returned by 425e59058c44025d71c9b7f260076a932935d3bba95James Smart * lpfc_els_hbq_alloc. 426e59058c44025d71c9b7f260076a932935d3bba95James Smart * 427e59058c44025d71c9b7f260076a932935d3bba95James Smart * Notes: Can be called with or without locks held. 428e59058c44025d71c9b7f260076a932935d3bba95James Smart * 429e59058c44025d71c9b7f260076a932935d3bba95James Smart * Returns: None 430e59058c44025d71c9b7f260076a932935d3bba95James Smart **/ 431ed957684294618602b48f1950b0c9bbcb036583fJames Smartvoid 43251ef4c26891a734bc8416b639ad460a8162926bcJames Smartlpfc_els_hbq_free(struct lpfc_hba *phba, struct hbq_dmabuf *hbqbp) 433ed957684294618602b48f1950b0c9bbcb036583fJames Smart{ 4348568a4d2495ebcf5da38a2141c7633399143b1a5James Smart pci_pool_free(phba->lpfc_hbq_pool, hbqbp->dbuf.virt, hbqbp->dbuf.phys); 43551ef4c26891a734bc8416b639ad460a8162926bcJames Smart kfree(hbqbp); 436ed957684294618602b48f1950b0c9bbcb036583fJames Smart return; 437ed957684294618602b48f1950b0c9bbcb036583fJames Smart} 438ed957684294618602b48f1950b0c9bbcb036583fJames Smart 439e59058c44025d71c9b7f260076a932935d3bba95James Smart/** 440da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * lpfc_sli4_rb_alloc - Allocate an SLI4 Receive buffer 441da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * @phba: HBA to allocate a receive buffer for 442da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * 443da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * Description: Allocates a DMA-mapped receive buffer from the lpfc_hrb_pool PCI 444da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * pool along a non-DMA-mapped container for it. 445da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * 446da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * Notes: Not interrupt-safe. Must be called with no locks held. 447da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * 448da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * Returns: 449da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * pointer to HBQ on success 450da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * NULL on failure 451da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart **/ 452da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smartstruct hbq_dmabuf * 453da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smartlpfc_sli4_rb_alloc(struct lpfc_hba *phba) 454da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart{ 455da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart struct hbq_dmabuf *dma_buf; 456da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart 457da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart dma_buf = kmalloc(sizeof(struct hbq_dmabuf), GFP_KERNEL); 458da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart if (!dma_buf) 459da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart return NULL; 460da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart 461da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart dma_buf->hbuf.virt = pci_pool_alloc(phba->lpfc_hrb_pool, GFP_KERNEL, 462da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart &dma_buf->hbuf.phys); 463da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart if (!dma_buf->hbuf.virt) { 464da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart kfree(dma_buf); 465da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart return NULL; 466da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart } 467da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart dma_buf->dbuf.virt = pci_pool_alloc(phba->lpfc_drb_pool, GFP_KERNEL, 468da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart &dma_buf->dbuf.phys); 469da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart if (!dma_buf->dbuf.virt) { 470da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart pci_pool_free(phba->lpfc_hrb_pool, dma_buf->hbuf.virt, 471da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart dma_buf->hbuf.phys); 472da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart kfree(dma_buf); 473da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart return NULL; 474da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart } 475da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart dma_buf->size = LPFC_BPL_SIZE; 476da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart return dma_buf; 477da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart} 478da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart 479da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart/** 480da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * lpfc_sli4_rb_free - Frees a receive buffer 481da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * @phba: HBA buffer was allocated for 482da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * @dmab: DMA Buffer container returned by lpfc_sli4_hbq_alloc 483da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * 484da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * Description: Frees both the container and the DMA-mapped buffers returned by 485da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * lpfc_sli4_rb_alloc. 486da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * 487da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * Notes: Can be called with or without locks held. 488da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * 489da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * Returns: None 490da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart **/ 491da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smartvoid 492da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smartlpfc_sli4_rb_free(struct lpfc_hba *phba, struct hbq_dmabuf *dmab) 493da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart{ 494da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart pci_pool_free(phba->lpfc_hrb_pool, dmab->hbuf.virt, dmab->hbuf.phys); 495da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart pci_pool_free(phba->lpfc_drb_pool, dmab->dbuf.virt, dmab->dbuf.phys); 496da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart kfree(dmab); 497da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart return; 498da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart} 499da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart 500da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart/** 5013621a710a7dbb2d22a8e95d94bcf0c2d13ef57fcJames Smart * lpfc_in_buf_free - Free a DMA buffer 502e59058c44025d71c9b7f260076a932935d3bba95James Smart * @phba: HBA buffer is associated with 503e59058c44025d71c9b7f260076a932935d3bba95James Smart * @mp: Buffer to free 504e59058c44025d71c9b7f260076a932935d3bba95James Smart * 505e59058c44025d71c9b7f260076a932935d3bba95James Smart * Description: Frees the given DMA buffer in the appropriate way given if the 506e59058c44025d71c9b7f260076a932935d3bba95James Smart * HBA is running in SLI3 mode with HBQs enabled. 507e59058c44025d71c9b7f260076a932935d3bba95James Smart * 508e59058c44025d71c9b7f260076a932935d3bba95James Smart * Notes: Takes phba->hbalock. Can be called with or without other locks held. 509e59058c44025d71c9b7f260076a932935d3bba95James Smart * 510e59058c44025d71c9b7f260076a932935d3bba95James Smart * Returns: None 511e59058c44025d71c9b7f260076a932935d3bba95James Smart **/ 51292d7f7b0cde3ad2260e7462b40867b57efd49851James Smartvoid 51392d7f7b0cde3ad2260e7462b40867b57efd49851James Smartlpfc_in_buf_free(struct lpfc_hba *phba, struct lpfc_dmabuf *mp) 51492d7f7b0cde3ad2260e7462b40867b57efd49851James Smart{ 51592d7f7b0cde3ad2260e7462b40867b57efd49851James Smart struct hbq_dmabuf *hbq_entry; 5163163f725a5d071eea1830bbbfab78cfe3fc9baafJames Smart unsigned long flags; 51792d7f7b0cde3ad2260e7462b40867b57efd49851James Smart 5187f5f3d0d02aa2f124e764aee5c775589ce72fd42James Smart if (!mp) 5197f5f3d0d02aa2f124e764aee5c775589ce72fd42James Smart return; 5207f5f3d0d02aa2f124e764aee5c775589ce72fd42James Smart 52192d7f7b0cde3ad2260e7462b40867b57efd49851James Smart if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) { 5223163f725a5d071eea1830bbbfab78cfe3fc9baafJames Smart /* Check whether HBQ is still in use */ 5233163f725a5d071eea1830bbbfab78cfe3fc9baafJames Smart spin_lock_irqsave(&phba->hbalock, flags); 5243163f725a5d071eea1830bbbfab78cfe3fc9baafJames Smart if (!phba->hbq_in_use) { 5253163f725a5d071eea1830bbbfab78cfe3fc9baafJames Smart spin_unlock_irqrestore(&phba->hbalock, flags); 5263163f725a5d071eea1830bbbfab78cfe3fc9baafJames Smart return; 5273163f725a5d071eea1830bbbfab78cfe3fc9baafJames Smart } 52892d7f7b0cde3ad2260e7462b40867b57efd49851James Smart hbq_entry = container_of(mp, struct hbq_dmabuf, dbuf); 5293163f725a5d071eea1830bbbfab78cfe3fc9baafJames Smart list_del(&hbq_entry->dbuf.list); 53092d7f7b0cde3ad2260e7462b40867b57efd49851James Smart if (hbq_entry->tag == -1) { 53151ef4c26891a734bc8416b639ad460a8162926bcJames Smart (phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer) 53251ef4c26891a734bc8416b639ad460a8162926bcJames Smart (phba, hbq_entry); 53392d7f7b0cde3ad2260e7462b40867b57efd49851James Smart } else { 53492d7f7b0cde3ad2260e7462b40867b57efd49851James Smart lpfc_sli_free_hbq(phba, hbq_entry); 53592d7f7b0cde3ad2260e7462b40867b57efd49851James Smart } 5363163f725a5d071eea1830bbbfab78cfe3fc9baafJames Smart spin_unlock_irqrestore(&phba->hbalock, flags); 53792d7f7b0cde3ad2260e7462b40867b57efd49851James Smart } else { 53892d7f7b0cde3ad2260e7462b40867b57efd49851James Smart lpfc_mbuf_free(phba, mp->virt, mp->phys); 53992d7f7b0cde3ad2260e7462b40867b57efd49851James Smart kfree(mp); 54092d7f7b0cde3ad2260e7462b40867b57efd49851James Smart } 54192d7f7b0cde3ad2260e7462b40867b57efd49851James Smart return; 54292d7f7b0cde3ad2260e7462b40867b57efd49851James Smart} 543