lpfc_mem.c revision cff261f6bd03612e792e4c8872c6ad049f743863
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. * 421a688cdfa2f48ca9132cf152b0cb7274cb37b98James Smart * Copyright (C) 2004-2012 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" 41cff261f6bd03612e792e4c8872c6ad049f743863James Smart#include "lpfc_logmsg.h" 42dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> 43dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>#define LPFC_MBUF_POOL_SIZE 64 /* max elements in MBUF safety pool */ 44dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>#define LPFC_MEM_POOL_SIZE 64 /* max elem in non-DMA safety pool */ 45dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> 46cff261f6bd03612e792e4c8872c6ad049f743863James Smartint 47cff261f6bd03612e792e4c8872c6ad049f743863James Smartlpfc_mem_alloc_active_rrq_pool_s4(struct lpfc_hba *phba) { 48cff261f6bd03612e792e4c8872c6ad049f743863James Smart size_t bytes; 49cff261f6bd03612e792e4c8872c6ad049f743863James Smart int max_xri = phba->sli4_hba.max_cfg_param.max_xri; 50cff261f6bd03612e792e4c8872c6ad049f743863James Smart 51cff261f6bd03612e792e4c8872c6ad049f743863James Smart if (max_xri <= 0) 52cff261f6bd03612e792e4c8872c6ad049f743863James Smart return -ENOMEM; 53cff261f6bd03612e792e4c8872c6ad049f743863James Smart bytes = ((BITS_PER_LONG - 1 + max_xri) / BITS_PER_LONG) * 54cff261f6bd03612e792e4c8872c6ad049f743863James Smart sizeof(unsigned long); 55cff261f6bd03612e792e4c8872c6ad049f743863James Smart phba->cfg_rrq_xri_bitmap_sz = bytes; 56cff261f6bd03612e792e4c8872c6ad049f743863James Smart phba->active_rrq_pool = mempool_create_kmalloc_pool(LPFC_MEM_POOL_SIZE, 57cff261f6bd03612e792e4c8872c6ad049f743863James Smart bytes); 58cff261f6bd03612e792e4c8872c6ad049f743863James Smart if (!phba->active_rrq_pool) 59cff261f6bd03612e792e4c8872c6ad049f743863James Smart return -ENOMEM; 60cff261f6bd03612e792e4c8872c6ad049f743863James Smart else 61cff261f6bd03612e792e4c8872c6ad049f743863James Smart return 0; 62cff261f6bd03612e792e4c8872c6ad049f743863James Smart} 632e0fef85e098f6794956b8b80b111179fbb4cbb7James Smart 64e59058c44025d71c9b7f260076a932935d3bba95James Smart/** 653621a710a7dbb2d22a8e95d94bcf0c2d13ef57fcJames Smart * lpfc_mem_alloc - create and allocate all PCI and memory pools 66e59058c44025d71c9b7f260076a932935d3bba95James Smart * @phba: HBA to allocate pools for 67e59058c44025d71c9b7f260076a932935d3bba95James Smart * 68e59058c44025d71c9b7f260076a932935d3bba95James Smart * Description: Creates and allocates PCI pools lpfc_scsi_dma_buf_pool, 69da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * lpfc_mbuf_pool, lpfc_hrb_pool. Creates and allocates kmalloc-backed mempools 70e59058c44025d71c9b7f260076a932935d3bba95James Smart * for LPFC_MBOXQ_t and lpfc_nodelist. Also allocates the VPI bitmask. 71e59058c44025d71c9b7f260076a932935d3bba95James Smart * 72e59058c44025d71c9b7f260076a932935d3bba95James Smart * Notes: Not interrupt-safe. Must be called with no locks held. If any 73e59058c44025d71c9b7f260076a932935d3bba95James Smart * allocation fails, frees all successfully allocated memory before returning. 74e59058c44025d71c9b7f260076a932935d3bba95James Smart * 75e59058c44025d71c9b7f260076a932935d3bba95James Smart * Returns: 76e59058c44025d71c9b7f260076a932935d3bba95James Smart * 0 on success 77e59058c44025d71c9b7f260076a932935d3bba95James Smart * -ENOMEM on failure (if any memory allocations fail) 78e59058c44025d71c9b7f260076a932935d3bba95James Smart **/ 79dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>int 80da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smartlpfc_mem_alloc(struct lpfc_hba *phba, int align) 81dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>{ 82dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> struct lpfc_dma_pool *pool = &phba->lpfc_mbuf_safety_pool; 83dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> int i; 84dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> 8596f7077f671254e957a2815e54bb20e8d50f0bbcJames Smart if (phba->sli_rev == LPFC_SLI_REV4) { 8696f7077f671254e957a2815e54bb20e8d50f0bbcJames Smart /* Calculate alignment */ 8796f7077f671254e957a2815e54bb20e8d50f0bbcJames Smart if (phba->cfg_sg_dma_buf_size < SLI4_PAGE_SIZE) 8896f7077f671254e957a2815e54bb20e8d50f0bbcJames Smart i = phba->cfg_sg_dma_buf_size; 8996f7077f671254e957a2815e54bb20e8d50f0bbcJames Smart else 9096f7077f671254e957a2815e54bb20e8d50f0bbcJames Smart i = SLI4_PAGE_SIZE; 9196f7077f671254e957a2815e54bb20e8d50f0bbcJames Smart 92da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart phba->lpfc_scsi_dma_buf_pool = 93da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart pci_pool_create("lpfc_scsi_dma_buf_pool", 94da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart phba->pcidev, 95da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart phba->cfg_sg_dma_buf_size, 9696f7077f671254e957a2815e54bb20e8d50f0bbcJames Smart i, 97da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart 0); 9896f7077f671254e957a2815e54bb20e8d50f0bbcJames Smart } else { 99da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart phba->lpfc_scsi_dma_buf_pool = 100da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart pci_pool_create("lpfc_scsi_dma_buf_pool", 101da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart phba->pcidev, phba->cfg_sg_dma_buf_size, 102da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart align, 0); 10396f7077f671254e957a2815e54bb20e8d50f0bbcJames Smart } 10496f7077f671254e957a2815e54bb20e8d50f0bbcJames Smart 105dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> if (!phba->lpfc_scsi_dma_buf_pool) 106dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> goto fail; 107dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> 108dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> phba->lpfc_mbuf_pool = pci_pool_create("lpfc_mbuf_pool", phba->pcidev, 109da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart LPFC_BPL_SIZE, 110da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart align, 0); 111dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> if (!phba->lpfc_mbuf_pool) 112dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> goto fail_free_dma_buf_pool; 113dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> 114dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> pool->elements = kmalloc(sizeof(struct lpfc_dmabuf) * 115dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> LPFC_MBUF_POOL_SIZE, GFP_KERNEL); 116a96e0c7798057dd8055d0263c076fed975c10237Mariusz Kozlowski if (!pool->elements) 117a96e0c7798057dd8055d0263c076fed975c10237Mariusz Kozlowski goto fail_free_lpfc_mbuf_pool; 118a96e0c7798057dd8055d0263c076fed975c10237Mariusz Kozlowski 119dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> pool->max_count = 0; 120dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> pool->current_count = 0; 121dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> for ( i = 0; i < LPFC_MBUF_POOL_SIZE; i++) { 122dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> pool->elements[i].virt = pci_pool_alloc(phba->lpfc_mbuf_pool, 123dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> GFP_KERNEL, &pool->elements[i].phys); 124dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> if (!pool->elements[i].virt) 125dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> goto fail_free_mbuf_pool; 126dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> pool->max_count++; 127dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> pool->current_count++; 128dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> } 129dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> 1300eaae62abaa1ad1f231932b6cdd9fb1b91df6651Matthew Dobson phba->mbox_mem_pool = mempool_create_kmalloc_pool(LPFC_MEM_POOL_SIZE, 1310eaae62abaa1ad1f231932b6cdd9fb1b91df6651Matthew Dobson sizeof(LPFC_MBOXQ_t)); 132dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> if (!phba->mbox_mem_pool) 133dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> goto fail_free_mbuf_pool; 134dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> 1350eaae62abaa1ad1f231932b6cdd9fb1b91df6651Matthew Dobson phba->nlp_mem_pool = mempool_create_kmalloc_pool(LPFC_MEM_POOL_SIZE, 1360eaae62abaa1ad1f231932b6cdd9fb1b91df6651Matthew Dobson sizeof(struct lpfc_nodelist)); 137dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> if (!phba->nlp_mem_pool) 138dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> goto fail_free_mbox_pool; 1398568a4d2495ebcf5da38a2141c7633399143b1a5James Smart 1408568a4d2495ebcf5da38a2141c7633399143b1a5James Smart if (phba->sli_rev == LPFC_SLI_REV4) { 14119ca760979e4be41a3eb215fb8d0e96637161947James Smart phba->rrq_pool = 14219ca760979e4be41a3eb215fb8d0e96637161947James Smart mempool_create_kmalloc_pool(LPFC_MEM_POOL_SIZE, 14319ca760979e4be41a3eb215fb8d0e96637161947James Smart sizeof(struct lpfc_node_rrq)); 14419ca760979e4be41a3eb215fb8d0e96637161947James Smart if (!phba->rrq_pool) 14519ca760979e4be41a3eb215fb8d0e96637161947James Smart goto fail_free_nlp_mem_pool; 1468568a4d2495ebcf5da38a2141c7633399143b1a5James Smart phba->lpfc_hrb_pool = pci_pool_create("lpfc_hrb_pool", 147da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart phba->pcidev, 148da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart LPFC_HDR_BUF_SIZE, align, 0); 1498568a4d2495ebcf5da38a2141c7633399143b1a5James Smart if (!phba->lpfc_hrb_pool) 15019ca760979e4be41a3eb215fb8d0e96637161947James Smart goto fail_free_rrq_mem_pool; 1518568a4d2495ebcf5da38a2141c7633399143b1a5James Smart 1528568a4d2495ebcf5da38a2141c7633399143b1a5James Smart phba->lpfc_drb_pool = pci_pool_create("lpfc_drb_pool", 153da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart phba->pcidev, 154da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart LPFC_DATA_BUF_SIZE, align, 0); 1558568a4d2495ebcf5da38a2141c7633399143b1a5James Smart if (!phba->lpfc_drb_pool) 1568568a4d2495ebcf5da38a2141c7633399143b1a5James Smart goto fail_free_hrb_pool; 1578568a4d2495ebcf5da38a2141c7633399143b1a5James Smart phba->lpfc_hbq_pool = NULL; 1588568a4d2495ebcf5da38a2141c7633399143b1a5James Smart } else { 1598568a4d2495ebcf5da38a2141c7633399143b1a5James Smart phba->lpfc_hbq_pool = pci_pool_create("lpfc_hbq_pool", 1608568a4d2495ebcf5da38a2141c7633399143b1a5James Smart phba->pcidev, LPFC_BPL_SIZE, align, 0); 1618568a4d2495ebcf5da38a2141c7633399143b1a5James Smart if (!phba->lpfc_hbq_pool) 1628568a4d2495ebcf5da38a2141c7633399143b1a5James Smart goto fail_free_nlp_mem_pool; 1638568a4d2495ebcf5da38a2141c7633399143b1a5James Smart phba->lpfc_hrb_pool = NULL; 1648568a4d2495ebcf5da38a2141c7633399143b1a5James Smart phba->lpfc_drb_pool = NULL; 1658568a4d2495ebcf5da38a2141c7633399143b1a5James Smart } 16692d7f7b0cde3ad2260e7462b40867b57efd49851James Smart 167dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> return 0; 1688568a4d2495ebcf5da38a2141c7633399143b1a5James Smart fail_free_hrb_pool: 169da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart pci_pool_destroy(phba->lpfc_hrb_pool); 170da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart phba->lpfc_hrb_pool = NULL; 17119ca760979e4be41a3eb215fb8d0e96637161947James Smart fail_free_rrq_mem_pool: 17219ca760979e4be41a3eb215fb8d0e96637161947James Smart mempool_destroy(phba->rrq_pool); 17319ca760979e4be41a3eb215fb8d0e96637161947James Smart phba->rrq_pool = NULL; 174ed957684294618602b48f1950b0c9bbcb036583fJames Smart fail_free_nlp_mem_pool: 175ed957684294618602b48f1950b0c9bbcb036583fJames Smart mempool_destroy(phba->nlp_mem_pool); 176ed957684294618602b48f1950b0c9bbcb036583fJames Smart phba->nlp_mem_pool = NULL; 177dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> fail_free_mbox_pool: 178dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> mempool_destroy(phba->mbox_mem_pool); 1792e0fef85e098f6794956b8b80b111179fbb4cbb7James Smart phba->mbox_mem_pool = NULL; 180dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> fail_free_mbuf_pool: 181a96e0c7798057dd8055d0263c076fed975c10237Mariusz Kozlowski while (i--) 182dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> pci_pool_free(phba->lpfc_mbuf_pool, pool->elements[i].virt, 183dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> pool->elements[i].phys); 184dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> kfree(pool->elements); 185a96e0c7798057dd8055d0263c076fed975c10237Mariusz Kozlowski fail_free_lpfc_mbuf_pool: 186dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> pci_pool_destroy(phba->lpfc_mbuf_pool); 1872e0fef85e098f6794956b8b80b111179fbb4cbb7James Smart phba->lpfc_mbuf_pool = NULL; 188dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> fail_free_dma_buf_pool: 189dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> pci_pool_destroy(phba->lpfc_scsi_dma_buf_pool); 1902e0fef85e098f6794956b8b80b111179fbb4cbb7James Smart phba->lpfc_scsi_dma_buf_pool = NULL; 191dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> fail: 192dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> return -ENOMEM; 193dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>} 194dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> 195e59058c44025d71c9b7f260076a932935d3bba95James Smart/** 196da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * lpfc_mem_free - Frees memory allocated by lpfc_mem_alloc 197e59058c44025d71c9b7f260076a932935d3bba95James Smart * @phba: HBA to free memory for 198e59058c44025d71c9b7f260076a932935d3bba95James Smart * 199da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * Description: Free the memory allocated by lpfc_mem_alloc routine. This 200da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * routine is a the counterpart of lpfc_mem_alloc. 201e59058c44025d71c9b7f260076a932935d3bba95James Smart * 202e59058c44025d71c9b7f260076a932935d3bba95James Smart * Returns: None 203e59058c44025d71c9b7f260076a932935d3bba95James Smart **/ 204dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>void 205da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smartlpfc_mem_free(struct lpfc_hba *phba) 206dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>{ 207dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> int i; 208da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart struct lpfc_dma_pool *pool = &phba->lpfc_mbuf_safety_pool; 209dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> 210da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart /* Free HBQ pools */ 211ed957684294618602b48f1950b0c9bbcb036583fJames Smart lpfc_sli_hbqbuf_free_all(phba); 2128568a4d2495ebcf5da38a2141c7633399143b1a5James Smart if (phba->lpfc_drb_pool) 2138568a4d2495ebcf5da38a2141c7633399143b1a5James Smart pci_pool_destroy(phba->lpfc_drb_pool); 214da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart phba->lpfc_drb_pool = NULL; 2158568a4d2495ebcf5da38a2141c7633399143b1a5James Smart if (phba->lpfc_hrb_pool) 2168568a4d2495ebcf5da38a2141c7633399143b1a5James Smart pci_pool_destroy(phba->lpfc_hrb_pool); 217da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart phba->lpfc_hrb_pool = NULL; 218da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart 2198568a4d2495ebcf5da38a2141c7633399143b1a5James Smart if (phba->lpfc_hbq_pool) 2208568a4d2495ebcf5da38a2141c7633399143b1a5James Smart pci_pool_destroy(phba->lpfc_hbq_pool); 2218568a4d2495ebcf5da38a2141c7633399143b1a5James Smart phba->lpfc_hbq_pool = NULL; 2228568a4d2495ebcf5da38a2141c7633399143b1a5James Smart 22321a688cdfa2f48ca9132cf152b0cb7274cb37b98James Smart if (phba->rrq_pool) 22421a688cdfa2f48ca9132cf152b0cb7274cb37b98James Smart mempool_destroy(phba->rrq_pool); 22521a688cdfa2f48ca9132cf152b0cb7274cb37b98James Smart phba->rrq_pool = NULL; 22621a688cdfa2f48ca9132cf152b0cb7274cb37b98James Smart 227da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart /* Free NLP memory pool */ 228da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart mempool_destroy(phba->nlp_mem_pool); 229da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart phba->nlp_mem_pool = NULL; 230cff261f6bd03612e792e4c8872c6ad049f743863James Smart if (phba->sli_rev == LPFC_SLI_REV4 && phba->active_rrq_pool) { 231cff261f6bd03612e792e4c8872c6ad049f743863James Smart mempool_destroy(phba->active_rrq_pool); 232cff261f6bd03612e792e4c8872c6ad049f743863James Smart phba->active_rrq_pool = NULL; 233cff261f6bd03612e792e4c8872c6ad049f743863James Smart } 234da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart 235da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart /* Free mbox memory pool */ 236da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart mempool_destroy(phba->mbox_mem_pool); 237da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart phba->mbox_mem_pool = NULL; 238da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart 239da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart /* Free MBUF memory pool */ 240da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart for (i = 0; i < pool->current_count; i++) 241da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart pci_pool_free(phba->lpfc_mbuf_pool, pool->elements[i].virt, 242da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart pool->elements[i].phys); 243da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart kfree(pool->elements); 244da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart 245da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart pci_pool_destroy(phba->lpfc_mbuf_pool); 246da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart phba->lpfc_mbuf_pool = NULL; 247ed957684294618602b48f1950b0c9bbcb036583fJames Smart 248da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart /* Free DMA buffer memory pool */ 249da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart pci_pool_destroy(phba->lpfc_scsi_dma_buf_pool); 250da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart phba->lpfc_scsi_dma_buf_pool = NULL; 251da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart 252da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart return; 253da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart} 254da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart 255da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart/** 256da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * lpfc_mem_free_all - Frees all PCI and driver memory 257da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * @phba: HBA to free memory for 258da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * 259da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * Description: Free memory from PCI and driver memory pools and also those 260da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * used : lpfc_scsi_dma_buf_pool, lpfc_mbuf_pool, lpfc_hrb_pool. Frees 261da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * kmalloc-backed mempools for LPFC_MBOXQ_t and lpfc_nodelist. Also frees 262da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * the VPI bitmask. 263da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * 264da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * Returns: None 265da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart **/ 266da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smartvoid 267da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smartlpfc_mem_free_all(struct lpfc_hba *phba) 268da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart{ 269da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart struct lpfc_sli *psli = &phba->sli; 270da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart LPFC_MBOXQ_t *mbox, *next_mbox; 271da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart struct lpfc_dmabuf *mp; 272da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart 273da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart /* Free memory used in mailbox queue back to mailbox memory pool */ 274dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> list_for_each_entry_safe(mbox, next_mbox, &psli->mboxq, list) { 275dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> mp = (struct lpfc_dmabuf *) (mbox->context1); 276dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> if (mp) { 277dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> lpfc_mbuf_free(phba, mp->virt, mp->phys); 278dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> kfree(mp); 279dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> } 280dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> list_del(&mbox->list); 281dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> mempool_free(mbox, phba->mbox_mem_pool); 282dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> } 283da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart /* Free memory used in mailbox cmpl list back to mailbox memory pool */ 28492d7f7b0cde3ad2260e7462b40867b57efd49851James Smart list_for_each_entry_safe(mbox, next_mbox, &psli->mboxq_cmpl, list) { 28592d7f7b0cde3ad2260e7462b40867b57efd49851James Smart mp = (struct lpfc_dmabuf *) (mbox->context1); 28692d7f7b0cde3ad2260e7462b40867b57efd49851James Smart if (mp) { 28792d7f7b0cde3ad2260e7462b40867b57efd49851James Smart lpfc_mbuf_free(phba, mp->virt, mp->phys); 28892d7f7b0cde3ad2260e7462b40867b57efd49851James Smart kfree(mp); 28992d7f7b0cde3ad2260e7462b40867b57efd49851James Smart } 29092d7f7b0cde3ad2260e7462b40867b57efd49851James Smart list_del(&mbox->list); 29192d7f7b0cde3ad2260e7462b40867b57efd49851James Smart mempool_free(mbox, phba->mbox_mem_pool); 29292d7f7b0cde3ad2260e7462b40867b57efd49851James Smart } 293da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart /* Free the active mailbox command back to the mailbox memory pool */ 294da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart spin_lock_irq(&phba->hbalock); 295dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; 296da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart spin_unlock_irq(&phba->hbalock); 297dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> if (psli->mbox_active) { 298dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> mbox = psli->mbox_active; 299dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> mp = (struct lpfc_dmabuf *) (mbox->context1); 300dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> if (mp) { 301dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> lpfc_mbuf_free(phba, mp->virt, mp->phys); 302dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> kfree(mp); 303dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> } 304dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> mempool_free(mbox, phba->mbox_mem_pool); 305dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> psli->mbox_active = NULL; 306dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> } 307dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> 308da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart /* Free and destroy all the allocated memory pools */ 309da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart lpfc_mem_free(phba); 3102e0fef85e098f6794956b8b80b111179fbb4cbb7James Smart 311e59058c44025d71c9b7f260076a932935d3bba95James Smart /* Free the iocb lookup array */ 3129f49d3b05f092b89e774be20c654ceb0c64a7d19James Smart kfree(psli->iocbq_lookup); 3139f49d3b05f092b89e774be20c654ceb0c64a7d19James Smart psli->iocbq_lookup = NULL; 314da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart 315da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart return; 316dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>} 317dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> 318e59058c44025d71c9b7f260076a932935d3bba95James Smart/** 3193621a710a7dbb2d22a8e95d94bcf0c2d13ef57fcJames Smart * lpfc_mbuf_alloc - Allocate an mbuf from the lpfc_mbuf_pool PCI pool 320e59058c44025d71c9b7f260076a932935d3bba95James Smart * @phba: HBA which owns the pool to allocate from 321e59058c44025d71c9b7f260076a932935d3bba95James Smart * @mem_flags: indicates if this is a priority (MEM_PRI) allocation 322e59058c44025d71c9b7f260076a932935d3bba95James Smart * @handle: used to return the DMA-mapped address of the mbuf 323e59058c44025d71c9b7f260076a932935d3bba95James Smart * 324e59058c44025d71c9b7f260076a932935d3bba95James Smart * Description: Allocates a DMA-mapped buffer from the lpfc_mbuf_pool PCI pool. 325e59058c44025d71c9b7f260076a932935d3bba95James Smart * Allocates from generic pci_pool_alloc function first and if that fails and 326e59058c44025d71c9b7f260076a932935d3bba95James Smart * mem_flags has MEM_PRI set (the only defined flag), returns an mbuf from the 327e59058c44025d71c9b7f260076a932935d3bba95James Smart * HBA's pool. 328e59058c44025d71c9b7f260076a932935d3bba95James Smart * 329e59058c44025d71c9b7f260076a932935d3bba95James Smart * Notes: Not interrupt-safe. Must be called with no locks held. Takes 330e59058c44025d71c9b7f260076a932935d3bba95James Smart * phba->hbalock. 331e59058c44025d71c9b7f260076a932935d3bba95James Smart * 332e59058c44025d71c9b7f260076a932935d3bba95James Smart * Returns: 333e59058c44025d71c9b7f260076a932935d3bba95James Smart * pointer to the allocated mbuf on success 334e59058c44025d71c9b7f260076a932935d3bba95James Smart * NULL on failure 335e59058c44025d71c9b7f260076a932935d3bba95James Smart **/ 336dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>void * 337dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>lpfc_mbuf_alloc(struct lpfc_hba *phba, int mem_flags, dma_addr_t *handle) 338dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>{ 339dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> struct lpfc_dma_pool *pool = &phba->lpfc_mbuf_safety_pool; 3402e0fef85e098f6794956b8b80b111179fbb4cbb7James Smart unsigned long iflags; 341dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> void *ret; 342dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> 343dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> ret = pci_pool_alloc(phba->lpfc_mbuf_pool, GFP_KERNEL, handle); 344dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> 3452e0fef85e098f6794956b8b80b111179fbb4cbb7James Smart spin_lock_irqsave(&phba->hbalock, iflags); 34692d7f7b0cde3ad2260e7462b40867b57efd49851James Smart if (!ret && (mem_flags & MEM_PRI) && pool->current_count) { 347dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> pool->current_count--; 348dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> ret = pool->elements[pool->current_count].virt; 349dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> *handle = pool->elements[pool->current_count].phys; 350dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> } 3512e0fef85e098f6794956b8b80b111179fbb4cbb7James Smart spin_unlock_irqrestore(&phba->hbalock, iflags); 352dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> return ret; 353dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>} 354dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> 355e59058c44025d71c9b7f260076a932935d3bba95James Smart/** 3563621a710a7dbb2d22a8e95d94bcf0c2d13ef57fcJames Smart * __lpfc_mbuf_free - Free an mbuf from the lpfc_mbuf_pool PCI pool (locked) 357e59058c44025d71c9b7f260076a932935d3bba95James Smart * @phba: HBA which owns the pool to return to 358e59058c44025d71c9b7f260076a932935d3bba95James Smart * @virt: mbuf to free 359e59058c44025d71c9b7f260076a932935d3bba95James Smart * @dma: the DMA-mapped address of the lpfc_mbuf_pool to be freed 360e59058c44025d71c9b7f260076a932935d3bba95James Smart * 361e59058c44025d71c9b7f260076a932935d3bba95James Smart * Description: Returns an mbuf lpfc_mbuf_pool to the lpfc_mbuf_safety_pool if 362e59058c44025d71c9b7f260076a932935d3bba95James Smart * it is below its max_count, frees the mbuf otherwise. 363e59058c44025d71c9b7f260076a932935d3bba95James Smart * 364e59058c44025d71c9b7f260076a932935d3bba95James Smart * Notes: Must be called with phba->hbalock held to synchronize access to 365e59058c44025d71c9b7f260076a932935d3bba95James Smart * lpfc_mbuf_safety_pool. 366e59058c44025d71c9b7f260076a932935d3bba95James Smart * 367e59058c44025d71c9b7f260076a932935d3bba95James Smart * Returns: None 368e59058c44025d71c9b7f260076a932935d3bba95James Smart **/ 369dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>void 3702e0fef85e098f6794956b8b80b111179fbb4cbb7James Smart__lpfc_mbuf_free(struct lpfc_hba * phba, void *virt, dma_addr_t dma) 371dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>{ 372dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> struct lpfc_dma_pool *pool = &phba->lpfc_mbuf_safety_pool; 373dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> 374dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> if (pool->current_count < pool->max_count) { 375dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> pool->elements[pool->current_count].virt = virt; 376dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> pool->elements[pool->current_count].phys = dma; 377dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> pool->current_count++; 378dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> } else { 379dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> pci_pool_free(phba->lpfc_mbuf_pool, virt, dma); 380dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> } 381dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> return; 382dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>} 3832e0fef85e098f6794956b8b80b111179fbb4cbb7James Smart 384e59058c44025d71c9b7f260076a932935d3bba95James Smart/** 3853621a710a7dbb2d22a8e95d94bcf0c2d13ef57fcJames Smart * lpfc_mbuf_free - Free an mbuf from the lpfc_mbuf_pool PCI pool (unlocked) 386e59058c44025d71c9b7f260076a932935d3bba95James Smart * @phba: HBA which owns the pool to return to 387e59058c44025d71c9b7f260076a932935d3bba95James Smart * @virt: mbuf to free 388e59058c44025d71c9b7f260076a932935d3bba95James Smart * @dma: the DMA-mapped address of the lpfc_mbuf_pool to be freed 389e59058c44025d71c9b7f260076a932935d3bba95James Smart * 390e59058c44025d71c9b7f260076a932935d3bba95James Smart * Description: Returns an mbuf lpfc_mbuf_pool to the lpfc_mbuf_safety_pool if 391e59058c44025d71c9b7f260076a932935d3bba95James Smart * it is below its max_count, frees the mbuf otherwise. 392e59058c44025d71c9b7f260076a932935d3bba95James Smart * 393e59058c44025d71c9b7f260076a932935d3bba95James Smart * Notes: Takes phba->hbalock. Can be called with or without other locks held. 394e59058c44025d71c9b7f260076a932935d3bba95James Smart * 395e59058c44025d71c9b7f260076a932935d3bba95James Smart * Returns: None 396e59058c44025d71c9b7f260076a932935d3bba95James Smart **/ 3972e0fef85e098f6794956b8b80b111179fbb4cbb7James Smartvoid 3982e0fef85e098f6794956b8b80b111179fbb4cbb7James Smartlpfc_mbuf_free(struct lpfc_hba * phba, void *virt, dma_addr_t dma) 3992e0fef85e098f6794956b8b80b111179fbb4cbb7James Smart{ 4002e0fef85e098f6794956b8b80b111179fbb4cbb7James Smart unsigned long iflags; 4012e0fef85e098f6794956b8b80b111179fbb4cbb7James Smart 4022e0fef85e098f6794956b8b80b111179fbb4cbb7James Smart spin_lock_irqsave(&phba->hbalock, iflags); 4032e0fef85e098f6794956b8b80b111179fbb4cbb7James Smart __lpfc_mbuf_free(phba, virt, dma); 4042e0fef85e098f6794956b8b80b111179fbb4cbb7James Smart spin_unlock_irqrestore(&phba->hbalock, iflags); 4052e0fef85e098f6794956b8b80b111179fbb4cbb7James Smart return; 4062e0fef85e098f6794956b8b80b111179fbb4cbb7James Smart} 407ed957684294618602b48f1950b0c9bbcb036583fJames Smart 408e59058c44025d71c9b7f260076a932935d3bba95James Smart/** 4093621a710a7dbb2d22a8e95d94bcf0c2d13ef57fcJames Smart * lpfc_els_hbq_alloc - Allocate an HBQ buffer 410e59058c44025d71c9b7f260076a932935d3bba95James Smart * @phba: HBA to allocate HBQ buffer for 411e59058c44025d71c9b7f260076a932935d3bba95James Smart * 412da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * Description: Allocates a DMA-mapped HBQ buffer from the lpfc_hrb_pool PCI 413e59058c44025d71c9b7f260076a932935d3bba95James Smart * pool along a non-DMA-mapped container for it. 414e59058c44025d71c9b7f260076a932935d3bba95James Smart * 415e59058c44025d71c9b7f260076a932935d3bba95James Smart * Notes: Not interrupt-safe. Must be called with no locks held. 416e59058c44025d71c9b7f260076a932935d3bba95James Smart * 417e59058c44025d71c9b7f260076a932935d3bba95James Smart * Returns: 418e59058c44025d71c9b7f260076a932935d3bba95James Smart * pointer to HBQ on success 419e59058c44025d71c9b7f260076a932935d3bba95James Smart * NULL on failure 420e59058c44025d71c9b7f260076a932935d3bba95James Smart **/ 42151ef4c26891a734bc8416b639ad460a8162926bcJames Smartstruct hbq_dmabuf * 42251ef4c26891a734bc8416b639ad460a8162926bcJames Smartlpfc_els_hbq_alloc(struct lpfc_hba *phba) 423ed957684294618602b48f1950b0c9bbcb036583fJames Smart{ 42451ef4c26891a734bc8416b639ad460a8162926bcJames Smart struct hbq_dmabuf *hbqbp; 42551ef4c26891a734bc8416b639ad460a8162926bcJames Smart 4262e90f4b5a2a0ce5ab72c0c81c74269bd0a62522bJames Smart hbqbp = kzalloc(sizeof(struct hbq_dmabuf), GFP_KERNEL); 42751ef4c26891a734bc8416b639ad460a8162926bcJames Smart if (!hbqbp) 42851ef4c26891a734bc8416b639ad460a8162926bcJames Smart return NULL; 42951ef4c26891a734bc8416b639ad460a8162926bcJames Smart 4308568a4d2495ebcf5da38a2141c7633399143b1a5James Smart hbqbp->dbuf.virt = pci_pool_alloc(phba->lpfc_hbq_pool, GFP_KERNEL, 43151ef4c26891a734bc8416b639ad460a8162926bcJames Smart &hbqbp->dbuf.phys); 43251ef4c26891a734bc8416b639ad460a8162926bcJames Smart if (!hbqbp->dbuf.virt) { 43351ef4c26891a734bc8416b639ad460a8162926bcJames Smart kfree(hbqbp); 43451ef4c26891a734bc8416b639ad460a8162926bcJames Smart return NULL; 43551ef4c26891a734bc8416b639ad460a8162926bcJames Smart } 43651ef4c26891a734bc8416b639ad460a8162926bcJames Smart hbqbp->size = LPFC_BPL_SIZE; 43751ef4c26891a734bc8416b639ad460a8162926bcJames Smart return hbqbp; 438ed957684294618602b48f1950b0c9bbcb036583fJames Smart} 439ed957684294618602b48f1950b0c9bbcb036583fJames Smart 440e59058c44025d71c9b7f260076a932935d3bba95James Smart/** 441da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * lpfc_els_hbq_free - Frees an HBQ buffer allocated with lpfc_els_hbq_alloc 442e59058c44025d71c9b7f260076a932935d3bba95James Smart * @phba: HBA buffer was allocated for 443e59058c44025d71c9b7f260076a932935d3bba95James Smart * @hbqbp: HBQ container returned by lpfc_els_hbq_alloc 444e59058c44025d71c9b7f260076a932935d3bba95James Smart * 445e59058c44025d71c9b7f260076a932935d3bba95James Smart * Description: Frees both the container and the DMA-mapped buffer returned by 446e59058c44025d71c9b7f260076a932935d3bba95James Smart * lpfc_els_hbq_alloc. 447e59058c44025d71c9b7f260076a932935d3bba95James Smart * 448e59058c44025d71c9b7f260076a932935d3bba95James Smart * Notes: Can be called with or without locks held. 449e59058c44025d71c9b7f260076a932935d3bba95James Smart * 450e59058c44025d71c9b7f260076a932935d3bba95James Smart * Returns: None 451e59058c44025d71c9b7f260076a932935d3bba95James Smart **/ 452ed957684294618602b48f1950b0c9bbcb036583fJames Smartvoid 45351ef4c26891a734bc8416b639ad460a8162926bcJames Smartlpfc_els_hbq_free(struct lpfc_hba *phba, struct hbq_dmabuf *hbqbp) 454ed957684294618602b48f1950b0c9bbcb036583fJames Smart{ 4558568a4d2495ebcf5da38a2141c7633399143b1a5James Smart pci_pool_free(phba->lpfc_hbq_pool, hbqbp->dbuf.virt, hbqbp->dbuf.phys); 45651ef4c26891a734bc8416b639ad460a8162926bcJames Smart kfree(hbqbp); 457ed957684294618602b48f1950b0c9bbcb036583fJames Smart return; 458ed957684294618602b48f1950b0c9bbcb036583fJames Smart} 459ed957684294618602b48f1950b0c9bbcb036583fJames Smart 460e59058c44025d71c9b7f260076a932935d3bba95James Smart/** 461da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * lpfc_sli4_rb_alloc - Allocate an SLI4 Receive buffer 462da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * @phba: HBA to allocate a receive buffer for 463da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * 464da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * Description: Allocates a DMA-mapped receive buffer from the lpfc_hrb_pool PCI 465da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * pool along a non-DMA-mapped container for it. 466da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * 467da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * Notes: Not interrupt-safe. Must be called with no locks held. 468da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * 469da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * Returns: 470da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * pointer to HBQ on success 471da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * NULL on failure 472da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart **/ 473da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smartstruct hbq_dmabuf * 474da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smartlpfc_sli4_rb_alloc(struct lpfc_hba *phba) 475da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart{ 476da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart struct hbq_dmabuf *dma_buf; 477da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart 4782e90f4b5a2a0ce5ab72c0c81c74269bd0a62522bJames Smart dma_buf = kzalloc(sizeof(struct hbq_dmabuf), GFP_KERNEL); 479da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart if (!dma_buf) 480da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart return NULL; 481da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart 482da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart dma_buf->hbuf.virt = pci_pool_alloc(phba->lpfc_hrb_pool, GFP_KERNEL, 483da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart &dma_buf->hbuf.phys); 484da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart if (!dma_buf->hbuf.virt) { 485da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart kfree(dma_buf); 486da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart return NULL; 487da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart } 488da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart dma_buf->dbuf.virt = pci_pool_alloc(phba->lpfc_drb_pool, GFP_KERNEL, 489da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart &dma_buf->dbuf.phys); 490da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart if (!dma_buf->dbuf.virt) { 491da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart pci_pool_free(phba->lpfc_hrb_pool, dma_buf->hbuf.virt, 492da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart dma_buf->hbuf.phys); 493da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart kfree(dma_buf); 494da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart return NULL; 495da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart } 496da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart dma_buf->size = LPFC_BPL_SIZE; 497da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart return dma_buf; 498da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart} 499da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart 500da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart/** 501da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * lpfc_sli4_rb_free - Frees a receive buffer 502da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * @phba: HBA buffer was allocated for 503da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * @dmab: DMA Buffer container returned by lpfc_sli4_hbq_alloc 504da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * 505da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * Description: Frees both the container and the DMA-mapped buffers returned by 506da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * lpfc_sli4_rb_alloc. 507da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * 508da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * Notes: Can be called with or without locks held. 509da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * 510da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * Returns: None 511da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart **/ 512da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smartvoid 513da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smartlpfc_sli4_rb_free(struct lpfc_hba *phba, struct hbq_dmabuf *dmab) 514da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart{ 515da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart pci_pool_free(phba->lpfc_hrb_pool, dmab->hbuf.virt, dmab->hbuf.phys); 516da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart pci_pool_free(phba->lpfc_drb_pool, dmab->dbuf.virt, dmab->dbuf.phys); 517da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart kfree(dmab); 518da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart return; 519da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart} 520da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart 521da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart/** 5223621a710a7dbb2d22a8e95d94bcf0c2d13ef57fcJames Smart * lpfc_in_buf_free - Free a DMA buffer 523e59058c44025d71c9b7f260076a932935d3bba95James Smart * @phba: HBA buffer is associated with 524e59058c44025d71c9b7f260076a932935d3bba95James Smart * @mp: Buffer to free 525e59058c44025d71c9b7f260076a932935d3bba95James Smart * 526e59058c44025d71c9b7f260076a932935d3bba95James Smart * Description: Frees the given DMA buffer in the appropriate way given if the 527e59058c44025d71c9b7f260076a932935d3bba95James Smart * HBA is running in SLI3 mode with HBQs enabled. 528e59058c44025d71c9b7f260076a932935d3bba95James Smart * 529e59058c44025d71c9b7f260076a932935d3bba95James Smart * Notes: Takes phba->hbalock. Can be called with or without other locks held. 530e59058c44025d71c9b7f260076a932935d3bba95James Smart * 531e59058c44025d71c9b7f260076a932935d3bba95James Smart * Returns: None 532e59058c44025d71c9b7f260076a932935d3bba95James Smart **/ 53392d7f7b0cde3ad2260e7462b40867b57efd49851James Smartvoid 53492d7f7b0cde3ad2260e7462b40867b57efd49851James Smartlpfc_in_buf_free(struct lpfc_hba *phba, struct lpfc_dmabuf *mp) 53592d7f7b0cde3ad2260e7462b40867b57efd49851James Smart{ 53692d7f7b0cde3ad2260e7462b40867b57efd49851James Smart struct hbq_dmabuf *hbq_entry; 5373163f725a5d071eea1830bbbfab78cfe3fc9baafJames Smart unsigned long flags; 53892d7f7b0cde3ad2260e7462b40867b57efd49851James Smart 5397f5f3d0d02aa2f124e764aee5c775589ce72fd42James Smart if (!mp) 5407f5f3d0d02aa2f124e764aee5c775589ce72fd42James Smart return; 5417f5f3d0d02aa2f124e764aee5c775589ce72fd42James Smart 54292d7f7b0cde3ad2260e7462b40867b57efd49851James Smart if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) { 5433163f725a5d071eea1830bbbfab78cfe3fc9baafJames Smart /* Check whether HBQ is still in use */ 5443163f725a5d071eea1830bbbfab78cfe3fc9baafJames Smart spin_lock_irqsave(&phba->hbalock, flags); 5453163f725a5d071eea1830bbbfab78cfe3fc9baafJames Smart if (!phba->hbq_in_use) { 5463163f725a5d071eea1830bbbfab78cfe3fc9baafJames Smart spin_unlock_irqrestore(&phba->hbalock, flags); 5473163f725a5d071eea1830bbbfab78cfe3fc9baafJames Smart return; 5483163f725a5d071eea1830bbbfab78cfe3fc9baafJames Smart } 54992d7f7b0cde3ad2260e7462b40867b57efd49851James Smart hbq_entry = container_of(mp, struct hbq_dmabuf, dbuf); 5503163f725a5d071eea1830bbbfab78cfe3fc9baafJames Smart list_del(&hbq_entry->dbuf.list); 55192d7f7b0cde3ad2260e7462b40867b57efd49851James Smart if (hbq_entry->tag == -1) { 55251ef4c26891a734bc8416b639ad460a8162926bcJames Smart (phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer) 55351ef4c26891a734bc8416b639ad460a8162926bcJames Smart (phba, hbq_entry); 55492d7f7b0cde3ad2260e7462b40867b57efd49851James Smart } else { 55592d7f7b0cde3ad2260e7462b40867b57efd49851James Smart lpfc_sli_free_hbq(phba, hbq_entry); 55692d7f7b0cde3ad2260e7462b40867b57efd49851James Smart } 5573163f725a5d071eea1830bbbfab78cfe3fc9baafJames Smart spin_unlock_irqrestore(&phba->hbalock, flags); 55892d7f7b0cde3ad2260e7462b40867b57efd49851James Smart } else { 55992d7f7b0cde3ad2260e7462b40867b57efd49851James Smart lpfc_mbuf_free(phba, mp->virt, mp->phys); 56092d7f7b0cde3ad2260e7462b40867b57efd49851James Smart kfree(mp); 56192d7f7b0cde3ad2260e7462b40867b57efd49851James Smart } 56292d7f7b0cde3ad2260e7462b40867b57efd49851James Smart return; 56392d7f7b0cde3ad2260e7462b40867b57efd49851James Smart} 564