lpfc_mem.c revision 8568a4d2495ebcf5da38a2141c7633399143b1a5
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> 23dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>#include <linux/pci.h> 24dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>#include <linux/interrupt.h> 25dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> 26f888ba3ce77c66bece3d804caf7d559838209a4aJames.Smart@Emulex.Com#include <scsi/scsi_device.h> 27f888ba3ce77c66bece3d804caf7d559838209a4aJames.Smart@Emulex.Com#include <scsi/scsi_transport_fc.h> 28f888ba3ce77c66bece3d804caf7d559838209a4aJames.Smart@Emulex.Com 29918865230e55b1fece2d8edec39d46c00626590bJames.Smart@Emulex.Com#include <scsi/scsi.h> 30918865230e55b1fece2d8edec39d46c00626590bJames.Smart@Emulex.Com 31da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart#include "lpfc_hw4.h" 32dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>#include "lpfc_hw.h" 33dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>#include "lpfc_sli.h" 34da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart#include "lpfc_sli4.h" 35ea2151b4e142fa2de0319d9dd80413a997bf435aJames Smart#include "lpfc_nl.h" 36dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>#include "lpfc_disc.h" 37dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>#include "lpfc_scsi.h" 38dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>#include "lpfc.h" 39dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>#include "lpfc_crtn.h" 40dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> 41dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>#define LPFC_MBUF_POOL_SIZE 64 /* max elements in MBUF safety pool */ 42dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>#define LPFC_MEM_POOL_SIZE 64 /* max elem in non-DMA safety pool */ 43dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> 442e0fef85e098f6794956b8b80b111179fbb4cbb7James Smart 45e59058c44025d71c9b7f260076a932935d3bba95James Smart/** 463621a710a7dbb2d22a8e95d94bcf0c2d13ef57fcJames Smart * lpfc_mem_alloc - create and allocate all PCI and memory pools 47e59058c44025d71c9b7f260076a932935d3bba95James Smart * @phba: HBA to allocate pools for 48e59058c44025d71c9b7f260076a932935d3bba95James Smart * 49e59058c44025d71c9b7f260076a932935d3bba95James Smart * Description: Creates and allocates PCI pools lpfc_scsi_dma_buf_pool, 50da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * lpfc_mbuf_pool, lpfc_hrb_pool. Creates and allocates kmalloc-backed mempools 51e59058c44025d71c9b7f260076a932935d3bba95James Smart * for LPFC_MBOXQ_t and lpfc_nodelist. Also allocates the VPI bitmask. 52e59058c44025d71c9b7f260076a932935d3bba95James Smart * 53e59058c44025d71c9b7f260076a932935d3bba95James Smart * Notes: Not interrupt-safe. Must be called with no locks held. If any 54e59058c44025d71c9b7f260076a932935d3bba95James Smart * allocation fails, frees all successfully allocated memory before returning. 55e59058c44025d71c9b7f260076a932935d3bba95James Smart * 56e59058c44025d71c9b7f260076a932935d3bba95James Smart * Returns: 57e59058c44025d71c9b7f260076a932935d3bba95James Smart * 0 on success 58e59058c44025d71c9b7f260076a932935d3bba95James Smart * -ENOMEM on failure (if any memory allocations fail) 59e59058c44025d71c9b7f260076a932935d3bba95James Smart **/ 60dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>int 61da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smartlpfc_mem_alloc(struct lpfc_hba *phba, int align) 62dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>{ 63dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> struct lpfc_dma_pool *pool = &phba->lpfc_mbuf_safety_pool; 6492d7f7b0cde3ad2260e7462b40867b57efd49851James Smart int longs; 65dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> int i; 66dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> 67da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart if (phba->sli_rev == LPFC_SLI_REV4) 68da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart phba->lpfc_scsi_dma_buf_pool = 69da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart pci_pool_create("lpfc_scsi_dma_buf_pool", 70da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart phba->pcidev, 71da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart phba->cfg_sg_dma_buf_size, 72da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart phba->cfg_sg_dma_buf_size, 73da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart 0); 74da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart else 75da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart phba->lpfc_scsi_dma_buf_pool = 76da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart pci_pool_create("lpfc_scsi_dma_buf_pool", 77da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart phba->pcidev, phba->cfg_sg_dma_buf_size, 78da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart align, 0); 79dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> if (!phba->lpfc_scsi_dma_buf_pool) 80dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> goto fail; 81dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> 82dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> phba->lpfc_mbuf_pool = pci_pool_create("lpfc_mbuf_pool", phba->pcidev, 83da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart LPFC_BPL_SIZE, 84da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart align, 0); 85dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> if (!phba->lpfc_mbuf_pool) 86dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> goto fail_free_dma_buf_pool; 87dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> 88dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> pool->elements = kmalloc(sizeof(struct lpfc_dmabuf) * 89dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> LPFC_MBUF_POOL_SIZE, GFP_KERNEL); 90a96e0c7798057dd8055d0263c076fed975c10237Mariusz Kozlowski if (!pool->elements) 91a96e0c7798057dd8055d0263c076fed975c10237Mariusz Kozlowski goto fail_free_lpfc_mbuf_pool; 92a96e0c7798057dd8055d0263c076fed975c10237Mariusz Kozlowski 93dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> pool->max_count = 0; 94dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> pool->current_count = 0; 95dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> for ( i = 0; i < LPFC_MBUF_POOL_SIZE; i++) { 96dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> pool->elements[i].virt = pci_pool_alloc(phba->lpfc_mbuf_pool, 97dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> GFP_KERNEL, &pool->elements[i].phys); 98dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> if (!pool->elements[i].virt) 99dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> goto fail_free_mbuf_pool; 100dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> pool->max_count++; 101dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> pool->current_count++; 102dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> } 103dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> 1040eaae62abaa1ad1f231932b6cdd9fb1b91df6651Matthew Dobson phba->mbox_mem_pool = mempool_create_kmalloc_pool(LPFC_MEM_POOL_SIZE, 1050eaae62abaa1ad1f231932b6cdd9fb1b91df6651Matthew Dobson sizeof(LPFC_MBOXQ_t)); 106dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> if (!phba->mbox_mem_pool) 107dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> goto fail_free_mbuf_pool; 108dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> 1090eaae62abaa1ad1f231932b6cdd9fb1b91df6651Matthew Dobson phba->nlp_mem_pool = mempool_create_kmalloc_pool(LPFC_MEM_POOL_SIZE, 1100eaae62abaa1ad1f231932b6cdd9fb1b91df6651Matthew Dobson sizeof(struct lpfc_nodelist)); 111dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> if (!phba->nlp_mem_pool) 112dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> goto fail_free_mbox_pool; 1138568a4d2495ebcf5da38a2141c7633399143b1a5James Smart 1148568a4d2495ebcf5da38a2141c7633399143b1a5James Smart if (phba->sli_rev == LPFC_SLI_REV4) { 1158568a4d2495ebcf5da38a2141c7633399143b1a5James Smart phba->lpfc_hrb_pool = pci_pool_create("lpfc_hrb_pool", 116da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart phba->pcidev, 117da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart LPFC_HDR_BUF_SIZE, align, 0); 1188568a4d2495ebcf5da38a2141c7633399143b1a5James Smart if (!phba->lpfc_hrb_pool) 1198568a4d2495ebcf5da38a2141c7633399143b1a5James Smart goto fail_free_nlp_mem_pool; 1208568a4d2495ebcf5da38a2141c7633399143b1a5James Smart 1218568a4d2495ebcf5da38a2141c7633399143b1a5James Smart phba->lpfc_drb_pool = pci_pool_create("lpfc_drb_pool", 122da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart phba->pcidev, 123da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart LPFC_DATA_BUF_SIZE, align, 0); 1248568a4d2495ebcf5da38a2141c7633399143b1a5James Smart if (!phba->lpfc_drb_pool) 1258568a4d2495ebcf5da38a2141c7633399143b1a5James Smart goto fail_free_hrb_pool; 1268568a4d2495ebcf5da38a2141c7633399143b1a5James Smart phba->lpfc_hbq_pool = NULL; 1278568a4d2495ebcf5da38a2141c7633399143b1a5James Smart } else { 1288568a4d2495ebcf5da38a2141c7633399143b1a5James Smart phba->lpfc_hbq_pool = pci_pool_create("lpfc_hbq_pool", 1298568a4d2495ebcf5da38a2141c7633399143b1a5James Smart phba->pcidev, LPFC_BPL_SIZE, align, 0); 1308568a4d2495ebcf5da38a2141c7633399143b1a5James Smart if (!phba->lpfc_hbq_pool) 1318568a4d2495ebcf5da38a2141c7633399143b1a5James Smart goto fail_free_nlp_mem_pool; 1328568a4d2495ebcf5da38a2141c7633399143b1a5James Smart phba->lpfc_hrb_pool = NULL; 1338568a4d2495ebcf5da38a2141c7633399143b1a5James Smart phba->lpfc_drb_pool = NULL; 1348568a4d2495ebcf5da38a2141c7633399143b1a5James Smart } 135858c9f6c19c6f9bf86cbbc64ce0d17c61d6131b8James Smart /* vpi zero is reserved for the physical port so add 1 to max */ 136858c9f6c19c6f9bf86cbbc64ce0d17c61d6131b8James Smart longs = ((phba->max_vpi + 1) + BITS_PER_LONG - 1) / BITS_PER_LONG; 13792d7f7b0cde3ad2260e7462b40867b57efd49851James Smart phba->vpi_bmask = kzalloc(longs * sizeof(unsigned long), GFP_KERNEL); 13892d7f7b0cde3ad2260e7462b40867b57efd49851James Smart if (!phba->vpi_bmask) 139da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart goto fail_free_dbq_pool; 14092d7f7b0cde3ad2260e7462b40867b57efd49851James Smart 141dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> return 0; 142dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> 143da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart fail_free_dbq_pool: 144da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart pci_pool_destroy(phba->lpfc_drb_pool); 145da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart phba->lpfc_drb_pool = NULL; 1468568a4d2495ebcf5da38a2141c7633399143b1a5James Smart fail_free_hrb_pool: 147da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart pci_pool_destroy(phba->lpfc_hrb_pool); 148da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart phba->lpfc_hrb_pool = NULL; 149ed957684294618602b48f1950b0c9bbcb036583fJames Smart fail_free_nlp_mem_pool: 150ed957684294618602b48f1950b0c9bbcb036583fJames Smart mempool_destroy(phba->nlp_mem_pool); 151ed957684294618602b48f1950b0c9bbcb036583fJames Smart phba->nlp_mem_pool = NULL; 152dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> fail_free_mbox_pool: 153dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> mempool_destroy(phba->mbox_mem_pool); 1542e0fef85e098f6794956b8b80b111179fbb4cbb7James Smart phba->mbox_mem_pool = NULL; 155dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> fail_free_mbuf_pool: 156a96e0c7798057dd8055d0263c076fed975c10237Mariusz Kozlowski while (i--) 157dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> pci_pool_free(phba->lpfc_mbuf_pool, pool->elements[i].virt, 158dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> pool->elements[i].phys); 159dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> kfree(pool->elements); 160a96e0c7798057dd8055d0263c076fed975c10237Mariusz Kozlowski fail_free_lpfc_mbuf_pool: 161dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> pci_pool_destroy(phba->lpfc_mbuf_pool); 1622e0fef85e098f6794956b8b80b111179fbb4cbb7James Smart phba->lpfc_mbuf_pool = NULL; 163dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> fail_free_dma_buf_pool: 164dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> pci_pool_destroy(phba->lpfc_scsi_dma_buf_pool); 1652e0fef85e098f6794956b8b80b111179fbb4cbb7James Smart phba->lpfc_scsi_dma_buf_pool = NULL; 166dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> fail: 167dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> return -ENOMEM; 168dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>} 169dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> 170e59058c44025d71c9b7f260076a932935d3bba95James Smart/** 171da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * lpfc_mem_free - Frees memory allocated by lpfc_mem_alloc 172e59058c44025d71c9b7f260076a932935d3bba95James Smart * @phba: HBA to free memory for 173e59058c44025d71c9b7f260076a932935d3bba95James Smart * 174da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * Description: Free the memory allocated by lpfc_mem_alloc routine. This 175da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * routine is a the counterpart of lpfc_mem_alloc. 176e59058c44025d71c9b7f260076a932935d3bba95James Smart * 177e59058c44025d71c9b7f260076a932935d3bba95James Smart * Returns: None 178e59058c44025d71c9b7f260076a932935d3bba95James Smart **/ 179dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>void 180da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smartlpfc_mem_free(struct lpfc_hba *phba) 181dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>{ 182dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> int i; 183da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart struct lpfc_dma_pool *pool = &phba->lpfc_mbuf_safety_pool; 184dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> 185da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart /* Free VPI bitmask memory */ 18692d7f7b0cde3ad2260e7462b40867b57efd49851James Smart kfree(phba->vpi_bmask); 187da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart 188da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart /* Free HBQ pools */ 189ed957684294618602b48f1950b0c9bbcb036583fJames Smart lpfc_sli_hbqbuf_free_all(phba); 1908568a4d2495ebcf5da38a2141c7633399143b1a5James Smart if (phba->lpfc_drb_pool) 1918568a4d2495ebcf5da38a2141c7633399143b1a5James Smart pci_pool_destroy(phba->lpfc_drb_pool); 192da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart phba->lpfc_drb_pool = NULL; 1938568a4d2495ebcf5da38a2141c7633399143b1a5James Smart if (phba->lpfc_hrb_pool) 1948568a4d2495ebcf5da38a2141c7633399143b1a5James Smart pci_pool_destroy(phba->lpfc_hrb_pool); 195da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart phba->lpfc_hrb_pool = NULL; 196da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart 1978568a4d2495ebcf5da38a2141c7633399143b1a5James Smart if (phba->lpfc_hbq_pool) 1988568a4d2495ebcf5da38a2141c7633399143b1a5James Smart pci_pool_destroy(phba->lpfc_hbq_pool); 1998568a4d2495ebcf5da38a2141c7633399143b1a5James Smart phba->lpfc_hbq_pool = NULL; 2008568a4d2495ebcf5da38a2141c7633399143b1a5James Smart 201da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart /* Free NLP memory pool */ 202da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart mempool_destroy(phba->nlp_mem_pool); 203da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart phba->nlp_mem_pool = NULL; 204da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart 205da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart /* Free mbox memory pool */ 206da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart mempool_destroy(phba->mbox_mem_pool); 207da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart phba->mbox_mem_pool = NULL; 208da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart 209da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart /* Free MBUF memory pool */ 210da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart for (i = 0; i < pool->current_count; i++) 211da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart pci_pool_free(phba->lpfc_mbuf_pool, pool->elements[i].virt, 212da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart pool->elements[i].phys); 213da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart kfree(pool->elements); 214da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart 215da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart pci_pool_destroy(phba->lpfc_mbuf_pool); 216da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart phba->lpfc_mbuf_pool = NULL; 217ed957684294618602b48f1950b0c9bbcb036583fJames Smart 218da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart /* Free DMA buffer memory pool */ 219da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart pci_pool_destroy(phba->lpfc_scsi_dma_buf_pool); 220da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart phba->lpfc_scsi_dma_buf_pool = NULL; 221da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart 222da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart return; 223da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart} 224da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart 225da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart/** 226da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * lpfc_mem_free_all - Frees all PCI and driver memory 227da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * @phba: HBA to free memory for 228da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * 229da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * Description: Free memory from PCI and driver memory pools and also those 230da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * used : lpfc_scsi_dma_buf_pool, lpfc_mbuf_pool, lpfc_hrb_pool. Frees 231da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * kmalloc-backed mempools for LPFC_MBOXQ_t and lpfc_nodelist. Also frees 232da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * the VPI bitmask. 233da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * 234da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * Returns: None 235da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart **/ 236da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smartvoid 237da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smartlpfc_mem_free_all(struct lpfc_hba *phba) 238da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart{ 239da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart struct lpfc_sli *psli = &phba->sli; 240da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart LPFC_MBOXQ_t *mbox, *next_mbox; 241da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart struct lpfc_dmabuf *mp; 242da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart 243da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart /* Free memory used in mailbox queue back to mailbox memory pool */ 244dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> list_for_each_entry_safe(mbox, next_mbox, &psli->mboxq, list) { 245dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> mp = (struct lpfc_dmabuf *) (mbox->context1); 246dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> if (mp) { 247dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> lpfc_mbuf_free(phba, mp->virt, mp->phys); 248dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> kfree(mp); 249dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> } 250dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> list_del(&mbox->list); 251dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> mempool_free(mbox, phba->mbox_mem_pool); 252dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> } 253da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart /* Free memory used in mailbox cmpl list back to mailbox memory pool */ 25492d7f7b0cde3ad2260e7462b40867b57efd49851James Smart list_for_each_entry_safe(mbox, next_mbox, &psli->mboxq_cmpl, list) { 25592d7f7b0cde3ad2260e7462b40867b57efd49851James Smart mp = (struct lpfc_dmabuf *) (mbox->context1); 25692d7f7b0cde3ad2260e7462b40867b57efd49851James Smart if (mp) { 25792d7f7b0cde3ad2260e7462b40867b57efd49851James Smart lpfc_mbuf_free(phba, mp->virt, mp->phys); 25892d7f7b0cde3ad2260e7462b40867b57efd49851James Smart kfree(mp); 25992d7f7b0cde3ad2260e7462b40867b57efd49851James Smart } 26092d7f7b0cde3ad2260e7462b40867b57efd49851James Smart list_del(&mbox->list); 26192d7f7b0cde3ad2260e7462b40867b57efd49851James Smart mempool_free(mbox, phba->mbox_mem_pool); 26292d7f7b0cde3ad2260e7462b40867b57efd49851James Smart } 263da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart /* Free the active mailbox command back to the mailbox memory pool */ 264da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart spin_lock_irq(&phba->hbalock); 265dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; 266da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart spin_unlock_irq(&phba->hbalock); 267dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> if (psli->mbox_active) { 268dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> mbox = psli->mbox_active; 269dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> mp = (struct lpfc_dmabuf *) (mbox->context1); 270dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> if (mp) { 271dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> lpfc_mbuf_free(phba, mp->virt, mp->phys); 272dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> kfree(mp); 273dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> } 274dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> mempool_free(mbox, phba->mbox_mem_pool); 275dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> psli->mbox_active = NULL; 276dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> } 277dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> 278da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart /* Free and destroy all the allocated memory pools */ 279da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart lpfc_mem_free(phba); 2802e0fef85e098f6794956b8b80b111179fbb4cbb7James Smart 281e59058c44025d71c9b7f260076a932935d3bba95James Smart /* Free the iocb lookup array */ 2829f49d3b05f092b89e774be20c654ceb0c64a7d19James Smart kfree(psli->iocbq_lookup); 2839f49d3b05f092b89e774be20c654ceb0c64a7d19James Smart psli->iocbq_lookup = NULL; 284da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart 285da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart return; 286dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>} 287dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> 288e59058c44025d71c9b7f260076a932935d3bba95James Smart/** 2893621a710a7dbb2d22a8e95d94bcf0c2d13ef57fcJames Smart * lpfc_mbuf_alloc - Allocate an mbuf from the lpfc_mbuf_pool PCI pool 290e59058c44025d71c9b7f260076a932935d3bba95James Smart * @phba: HBA which owns the pool to allocate from 291e59058c44025d71c9b7f260076a932935d3bba95James Smart * @mem_flags: indicates if this is a priority (MEM_PRI) allocation 292e59058c44025d71c9b7f260076a932935d3bba95James Smart * @handle: used to return the DMA-mapped address of the mbuf 293e59058c44025d71c9b7f260076a932935d3bba95James Smart * 294e59058c44025d71c9b7f260076a932935d3bba95James Smart * Description: Allocates a DMA-mapped buffer from the lpfc_mbuf_pool PCI pool. 295e59058c44025d71c9b7f260076a932935d3bba95James Smart * Allocates from generic pci_pool_alloc function first and if that fails and 296e59058c44025d71c9b7f260076a932935d3bba95James Smart * mem_flags has MEM_PRI set (the only defined flag), returns an mbuf from the 297e59058c44025d71c9b7f260076a932935d3bba95James Smart * HBA's pool. 298e59058c44025d71c9b7f260076a932935d3bba95James Smart * 299e59058c44025d71c9b7f260076a932935d3bba95James Smart * Notes: Not interrupt-safe. Must be called with no locks held. Takes 300e59058c44025d71c9b7f260076a932935d3bba95James Smart * phba->hbalock. 301e59058c44025d71c9b7f260076a932935d3bba95James Smart * 302e59058c44025d71c9b7f260076a932935d3bba95James Smart * Returns: 303e59058c44025d71c9b7f260076a932935d3bba95James Smart * pointer to the allocated mbuf on success 304e59058c44025d71c9b7f260076a932935d3bba95James Smart * NULL on failure 305e59058c44025d71c9b7f260076a932935d3bba95James Smart **/ 306dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>void * 307dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>lpfc_mbuf_alloc(struct lpfc_hba *phba, int mem_flags, dma_addr_t *handle) 308dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>{ 309dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> struct lpfc_dma_pool *pool = &phba->lpfc_mbuf_safety_pool; 3102e0fef85e098f6794956b8b80b111179fbb4cbb7James Smart unsigned long iflags; 311dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> void *ret; 312dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> 313dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> ret = pci_pool_alloc(phba->lpfc_mbuf_pool, GFP_KERNEL, handle); 314dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> 3152e0fef85e098f6794956b8b80b111179fbb4cbb7James Smart spin_lock_irqsave(&phba->hbalock, iflags); 31692d7f7b0cde3ad2260e7462b40867b57efd49851James Smart if (!ret && (mem_flags & MEM_PRI) && pool->current_count) { 317dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> pool->current_count--; 318dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> ret = pool->elements[pool->current_count].virt; 319dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> *handle = pool->elements[pool->current_count].phys; 320dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> } 3212e0fef85e098f6794956b8b80b111179fbb4cbb7James Smart spin_unlock_irqrestore(&phba->hbalock, iflags); 322dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> return ret; 323dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>} 324dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> 325e59058c44025d71c9b7f260076a932935d3bba95James Smart/** 3263621a710a7dbb2d22a8e95d94bcf0c2d13ef57fcJames Smart * __lpfc_mbuf_free - Free an mbuf from the lpfc_mbuf_pool PCI pool (locked) 327e59058c44025d71c9b7f260076a932935d3bba95James Smart * @phba: HBA which owns the pool to return to 328e59058c44025d71c9b7f260076a932935d3bba95James Smart * @virt: mbuf to free 329e59058c44025d71c9b7f260076a932935d3bba95James Smart * @dma: the DMA-mapped address of the lpfc_mbuf_pool to be freed 330e59058c44025d71c9b7f260076a932935d3bba95James Smart * 331e59058c44025d71c9b7f260076a932935d3bba95James Smart * Description: Returns an mbuf lpfc_mbuf_pool to the lpfc_mbuf_safety_pool if 332e59058c44025d71c9b7f260076a932935d3bba95James Smart * it is below its max_count, frees the mbuf otherwise. 333e59058c44025d71c9b7f260076a932935d3bba95James Smart * 334e59058c44025d71c9b7f260076a932935d3bba95James Smart * Notes: Must be called with phba->hbalock held to synchronize access to 335e59058c44025d71c9b7f260076a932935d3bba95James Smart * lpfc_mbuf_safety_pool. 336e59058c44025d71c9b7f260076a932935d3bba95James Smart * 337e59058c44025d71c9b7f260076a932935d3bba95James Smart * Returns: None 338e59058c44025d71c9b7f260076a932935d3bba95James Smart **/ 339dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>void 3402e0fef85e098f6794956b8b80b111179fbb4cbb7James Smart__lpfc_mbuf_free(struct lpfc_hba * phba, void *virt, dma_addr_t dma) 341dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>{ 342dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> struct lpfc_dma_pool *pool = &phba->lpfc_mbuf_safety_pool; 343dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> 344dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> if (pool->current_count < pool->max_count) { 345dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> pool->elements[pool->current_count].virt = virt; 346dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> pool->elements[pool->current_count].phys = dma; 347dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> pool->current_count++; 348dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> } else { 349dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> pci_pool_free(phba->lpfc_mbuf_pool, virt, dma); 350dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> } 351dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> return; 352dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>} 3532e0fef85e098f6794956b8b80b111179fbb4cbb7James Smart 354e59058c44025d71c9b7f260076a932935d3bba95James Smart/** 3553621a710a7dbb2d22a8e95d94bcf0c2d13ef57fcJames Smart * lpfc_mbuf_free - Free an mbuf from the lpfc_mbuf_pool PCI pool (unlocked) 356e59058c44025d71c9b7f260076a932935d3bba95James Smart * @phba: HBA which owns the pool to return to 357e59058c44025d71c9b7f260076a932935d3bba95James Smart * @virt: mbuf to free 358e59058c44025d71c9b7f260076a932935d3bba95James Smart * @dma: the DMA-mapped address of the lpfc_mbuf_pool to be freed 359e59058c44025d71c9b7f260076a932935d3bba95James Smart * 360e59058c44025d71c9b7f260076a932935d3bba95James Smart * Description: Returns an mbuf lpfc_mbuf_pool to the lpfc_mbuf_safety_pool if 361e59058c44025d71c9b7f260076a932935d3bba95James Smart * it is below its max_count, frees the mbuf otherwise. 362e59058c44025d71c9b7f260076a932935d3bba95James Smart * 363e59058c44025d71c9b7f260076a932935d3bba95James Smart * Notes: Takes phba->hbalock. Can be called with or without other locks held. 364e59058c44025d71c9b7f260076a932935d3bba95James Smart * 365e59058c44025d71c9b7f260076a932935d3bba95James Smart * Returns: None 366e59058c44025d71c9b7f260076a932935d3bba95James Smart **/ 3672e0fef85e098f6794956b8b80b111179fbb4cbb7James Smartvoid 3682e0fef85e098f6794956b8b80b111179fbb4cbb7James Smartlpfc_mbuf_free(struct lpfc_hba * phba, void *virt, dma_addr_t dma) 3692e0fef85e098f6794956b8b80b111179fbb4cbb7James Smart{ 3702e0fef85e098f6794956b8b80b111179fbb4cbb7James Smart unsigned long iflags; 3712e0fef85e098f6794956b8b80b111179fbb4cbb7James Smart 3722e0fef85e098f6794956b8b80b111179fbb4cbb7James Smart spin_lock_irqsave(&phba->hbalock, iflags); 3732e0fef85e098f6794956b8b80b111179fbb4cbb7James Smart __lpfc_mbuf_free(phba, virt, dma); 3742e0fef85e098f6794956b8b80b111179fbb4cbb7James Smart spin_unlock_irqrestore(&phba->hbalock, iflags); 3752e0fef85e098f6794956b8b80b111179fbb4cbb7James Smart return; 3762e0fef85e098f6794956b8b80b111179fbb4cbb7James Smart} 377ed957684294618602b48f1950b0c9bbcb036583fJames Smart 378e59058c44025d71c9b7f260076a932935d3bba95James Smart/** 3793621a710a7dbb2d22a8e95d94bcf0c2d13ef57fcJames Smart * lpfc_els_hbq_alloc - Allocate an HBQ buffer 380e59058c44025d71c9b7f260076a932935d3bba95James Smart * @phba: HBA to allocate HBQ buffer for 381e59058c44025d71c9b7f260076a932935d3bba95James Smart * 382da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * Description: Allocates a DMA-mapped HBQ buffer from the lpfc_hrb_pool PCI 383e59058c44025d71c9b7f260076a932935d3bba95James Smart * pool along a non-DMA-mapped container for it. 384e59058c44025d71c9b7f260076a932935d3bba95James Smart * 385e59058c44025d71c9b7f260076a932935d3bba95James Smart * Notes: Not interrupt-safe. Must be called with no locks held. 386e59058c44025d71c9b7f260076a932935d3bba95James Smart * 387e59058c44025d71c9b7f260076a932935d3bba95James Smart * Returns: 388e59058c44025d71c9b7f260076a932935d3bba95James Smart * pointer to HBQ on success 389e59058c44025d71c9b7f260076a932935d3bba95James Smart * NULL on failure 390e59058c44025d71c9b7f260076a932935d3bba95James Smart **/ 39151ef4c26891a734bc8416b639ad460a8162926bcJames Smartstruct hbq_dmabuf * 39251ef4c26891a734bc8416b639ad460a8162926bcJames Smartlpfc_els_hbq_alloc(struct lpfc_hba *phba) 393ed957684294618602b48f1950b0c9bbcb036583fJames Smart{ 39451ef4c26891a734bc8416b639ad460a8162926bcJames Smart struct hbq_dmabuf *hbqbp; 39551ef4c26891a734bc8416b639ad460a8162926bcJames Smart 39651ef4c26891a734bc8416b639ad460a8162926bcJames Smart hbqbp = kmalloc(sizeof(struct hbq_dmabuf), GFP_KERNEL); 39751ef4c26891a734bc8416b639ad460a8162926bcJames Smart if (!hbqbp) 39851ef4c26891a734bc8416b639ad460a8162926bcJames Smart return NULL; 39951ef4c26891a734bc8416b639ad460a8162926bcJames Smart 4008568a4d2495ebcf5da38a2141c7633399143b1a5James Smart hbqbp->dbuf.virt = pci_pool_alloc(phba->lpfc_hbq_pool, GFP_KERNEL, 40151ef4c26891a734bc8416b639ad460a8162926bcJames Smart &hbqbp->dbuf.phys); 40251ef4c26891a734bc8416b639ad460a8162926bcJames Smart if (!hbqbp->dbuf.virt) { 40351ef4c26891a734bc8416b639ad460a8162926bcJames Smart kfree(hbqbp); 40451ef4c26891a734bc8416b639ad460a8162926bcJames Smart return NULL; 40551ef4c26891a734bc8416b639ad460a8162926bcJames Smart } 40651ef4c26891a734bc8416b639ad460a8162926bcJames Smart hbqbp->size = LPFC_BPL_SIZE; 40751ef4c26891a734bc8416b639ad460a8162926bcJames Smart return hbqbp; 408ed957684294618602b48f1950b0c9bbcb036583fJames Smart} 409ed957684294618602b48f1950b0c9bbcb036583fJames Smart 410e59058c44025d71c9b7f260076a932935d3bba95James Smart/** 411da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * lpfc_els_hbq_free - Frees an HBQ buffer allocated with lpfc_els_hbq_alloc 412e59058c44025d71c9b7f260076a932935d3bba95James Smart * @phba: HBA buffer was allocated for 413e59058c44025d71c9b7f260076a932935d3bba95James Smart * @hbqbp: HBQ container returned by lpfc_els_hbq_alloc 414e59058c44025d71c9b7f260076a932935d3bba95James Smart * 415e59058c44025d71c9b7f260076a932935d3bba95James Smart * Description: Frees both the container and the DMA-mapped buffer returned by 416e59058c44025d71c9b7f260076a932935d3bba95James Smart * lpfc_els_hbq_alloc. 417e59058c44025d71c9b7f260076a932935d3bba95James Smart * 418e59058c44025d71c9b7f260076a932935d3bba95James Smart * Notes: Can be called with or without locks held. 419e59058c44025d71c9b7f260076a932935d3bba95James Smart * 420e59058c44025d71c9b7f260076a932935d3bba95James Smart * Returns: None 421e59058c44025d71c9b7f260076a932935d3bba95James Smart **/ 422ed957684294618602b48f1950b0c9bbcb036583fJames Smartvoid 42351ef4c26891a734bc8416b639ad460a8162926bcJames Smartlpfc_els_hbq_free(struct lpfc_hba *phba, struct hbq_dmabuf *hbqbp) 424ed957684294618602b48f1950b0c9bbcb036583fJames Smart{ 4258568a4d2495ebcf5da38a2141c7633399143b1a5James Smart pci_pool_free(phba->lpfc_hbq_pool, hbqbp->dbuf.virt, hbqbp->dbuf.phys); 42651ef4c26891a734bc8416b639ad460a8162926bcJames Smart kfree(hbqbp); 427ed957684294618602b48f1950b0c9bbcb036583fJames Smart return; 428ed957684294618602b48f1950b0c9bbcb036583fJames Smart} 429ed957684294618602b48f1950b0c9bbcb036583fJames Smart 430e59058c44025d71c9b7f260076a932935d3bba95James Smart/** 431da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * lpfc_sli4_rb_alloc - Allocate an SLI4 Receive buffer 432da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * @phba: HBA to allocate a receive buffer for 433da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * 434da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * Description: Allocates a DMA-mapped receive buffer from the lpfc_hrb_pool PCI 435da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * pool along a non-DMA-mapped container for it. 436da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * 437da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * Notes: Not interrupt-safe. Must be called with no locks held. 438da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * 439da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * Returns: 440da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * pointer to HBQ on success 441da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * NULL on failure 442da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart **/ 443da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smartstruct hbq_dmabuf * 444da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smartlpfc_sli4_rb_alloc(struct lpfc_hba *phba) 445da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart{ 446da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart struct hbq_dmabuf *dma_buf; 447da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart 448da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart dma_buf = kmalloc(sizeof(struct hbq_dmabuf), GFP_KERNEL); 449da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart if (!dma_buf) 450da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart return NULL; 451da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart 452da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart dma_buf->hbuf.virt = pci_pool_alloc(phba->lpfc_hrb_pool, GFP_KERNEL, 453da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart &dma_buf->hbuf.phys); 454da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart if (!dma_buf->hbuf.virt) { 455da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart kfree(dma_buf); 456da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart return NULL; 457da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart } 458da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart dma_buf->dbuf.virt = pci_pool_alloc(phba->lpfc_drb_pool, GFP_KERNEL, 459da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart &dma_buf->dbuf.phys); 460da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart if (!dma_buf->dbuf.virt) { 461da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart pci_pool_free(phba->lpfc_hrb_pool, dma_buf->hbuf.virt, 462da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart dma_buf->hbuf.phys); 463da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart kfree(dma_buf); 464da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart return NULL; 465da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart } 466da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart dma_buf->size = LPFC_BPL_SIZE; 467da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart return dma_buf; 468da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart} 469da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart 470da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart/** 471da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * lpfc_sli4_rb_free - Frees a receive buffer 472da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * @phba: HBA buffer was allocated for 473da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * @dmab: DMA Buffer container returned by lpfc_sli4_hbq_alloc 474da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * 475da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * Description: Frees both the container and the DMA-mapped buffers returned by 476da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * lpfc_sli4_rb_alloc. 477da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * 478da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * Notes: Can be called with or without locks held. 479da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * 480da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * Returns: None 481da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart **/ 482da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smartvoid 483da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smartlpfc_sli4_rb_free(struct lpfc_hba *phba, struct hbq_dmabuf *dmab) 484da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart{ 485da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart pci_pool_free(phba->lpfc_hrb_pool, dmab->hbuf.virt, dmab->hbuf.phys); 486da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart pci_pool_free(phba->lpfc_drb_pool, dmab->dbuf.virt, dmab->dbuf.phys); 487da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart kfree(dmab); 488da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart return; 489da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart} 490da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart 491da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart/** 4923621a710a7dbb2d22a8e95d94bcf0c2d13ef57fcJames Smart * lpfc_in_buf_free - Free a DMA buffer 493e59058c44025d71c9b7f260076a932935d3bba95James Smart * @phba: HBA buffer is associated with 494e59058c44025d71c9b7f260076a932935d3bba95James Smart * @mp: Buffer to free 495e59058c44025d71c9b7f260076a932935d3bba95James Smart * 496e59058c44025d71c9b7f260076a932935d3bba95James Smart * Description: Frees the given DMA buffer in the appropriate way given if the 497e59058c44025d71c9b7f260076a932935d3bba95James Smart * HBA is running in SLI3 mode with HBQs enabled. 498e59058c44025d71c9b7f260076a932935d3bba95James Smart * 499e59058c44025d71c9b7f260076a932935d3bba95James Smart * Notes: Takes phba->hbalock. Can be called with or without other locks held. 500e59058c44025d71c9b7f260076a932935d3bba95James Smart * 501e59058c44025d71c9b7f260076a932935d3bba95James Smart * Returns: None 502e59058c44025d71c9b7f260076a932935d3bba95James Smart **/ 50392d7f7b0cde3ad2260e7462b40867b57efd49851James Smartvoid 50492d7f7b0cde3ad2260e7462b40867b57efd49851James Smartlpfc_in_buf_free(struct lpfc_hba *phba, struct lpfc_dmabuf *mp) 50592d7f7b0cde3ad2260e7462b40867b57efd49851James Smart{ 50692d7f7b0cde3ad2260e7462b40867b57efd49851James Smart struct hbq_dmabuf *hbq_entry; 5073163f725a5d071eea1830bbbfab78cfe3fc9baafJames Smart unsigned long flags; 50892d7f7b0cde3ad2260e7462b40867b57efd49851James Smart 5097f5f3d0d02aa2f124e764aee5c775589ce72fd42James Smart if (!mp) 5107f5f3d0d02aa2f124e764aee5c775589ce72fd42James Smart return; 5117f5f3d0d02aa2f124e764aee5c775589ce72fd42James Smart 51292d7f7b0cde3ad2260e7462b40867b57efd49851James Smart if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) { 5133163f725a5d071eea1830bbbfab78cfe3fc9baafJames Smart /* Check whether HBQ is still in use */ 5143163f725a5d071eea1830bbbfab78cfe3fc9baafJames Smart spin_lock_irqsave(&phba->hbalock, flags); 5153163f725a5d071eea1830bbbfab78cfe3fc9baafJames Smart if (!phba->hbq_in_use) { 5163163f725a5d071eea1830bbbfab78cfe3fc9baafJames Smart spin_unlock_irqrestore(&phba->hbalock, flags); 5173163f725a5d071eea1830bbbfab78cfe3fc9baafJames Smart return; 5183163f725a5d071eea1830bbbfab78cfe3fc9baafJames Smart } 51992d7f7b0cde3ad2260e7462b40867b57efd49851James Smart hbq_entry = container_of(mp, struct hbq_dmabuf, dbuf); 5203163f725a5d071eea1830bbbfab78cfe3fc9baafJames Smart list_del(&hbq_entry->dbuf.list); 52192d7f7b0cde3ad2260e7462b40867b57efd49851James Smart if (hbq_entry->tag == -1) { 52251ef4c26891a734bc8416b639ad460a8162926bcJames Smart (phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer) 52351ef4c26891a734bc8416b639ad460a8162926bcJames Smart (phba, hbq_entry); 52492d7f7b0cde3ad2260e7462b40867b57efd49851James Smart } else { 52592d7f7b0cde3ad2260e7462b40867b57efd49851James Smart lpfc_sli_free_hbq(phba, hbq_entry); 52692d7f7b0cde3ad2260e7462b40867b57efd49851James Smart } 5273163f725a5d071eea1830bbbfab78cfe3fc9baafJames Smart spin_unlock_irqrestore(&phba->hbalock, flags); 52892d7f7b0cde3ad2260e7462b40867b57efd49851James Smart } else { 52992d7f7b0cde3ad2260e7462b40867b57efd49851James Smart lpfc_mbuf_free(phba, mp->virt, mp->phys); 53092d7f7b0cde3ad2260e7462b40867b57efd49851James Smart kfree(mp); 53192d7f7b0cde3ad2260e7462b40867b57efd49851James Smart } 53292d7f7b0cde3ad2260e7462b40867b57efd49851James Smart return; 53392d7f7b0cde3ad2260e7462b40867b57efd49851James Smart} 534