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. * 4b857ff33d0a8be47220ebd0e816962c6037216bbJames Smart * Copyright (C) 2004-2014 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 */ 451ba981fd3ad1f91b8bb205ce6aac6aad45f2fa7aJames Smart#define LPFC_DEVICE_DATA_POOL_SIZE 64 /* max elements in device data pool */ 46dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> 47cff261f6bd03612e792e4c8872c6ad049f743863James Smartint 48cff261f6bd03612e792e4c8872c6ad049f743863James Smartlpfc_mem_alloc_active_rrq_pool_s4(struct lpfc_hba *phba) { 49cff261f6bd03612e792e4c8872c6ad049f743863James Smart size_t bytes; 50cff261f6bd03612e792e4c8872c6ad049f743863James Smart int max_xri = phba->sli4_hba.max_cfg_param.max_xri; 51cff261f6bd03612e792e4c8872c6ad049f743863James Smart 52cff261f6bd03612e792e4c8872c6ad049f743863James Smart if (max_xri <= 0) 53cff261f6bd03612e792e4c8872c6ad049f743863James Smart return -ENOMEM; 54cff261f6bd03612e792e4c8872c6ad049f743863James Smart bytes = ((BITS_PER_LONG - 1 + max_xri) / BITS_PER_LONG) * 55cff261f6bd03612e792e4c8872c6ad049f743863James Smart sizeof(unsigned long); 56cff261f6bd03612e792e4c8872c6ad049f743863James Smart phba->cfg_rrq_xri_bitmap_sz = bytes; 57cff261f6bd03612e792e4c8872c6ad049f743863James Smart phba->active_rrq_pool = mempool_create_kmalloc_pool(LPFC_MEM_POOL_SIZE, 58cff261f6bd03612e792e4c8872c6ad049f743863James Smart bytes); 59cff261f6bd03612e792e4c8872c6ad049f743863James Smart if (!phba->active_rrq_pool) 60cff261f6bd03612e792e4c8872c6ad049f743863James Smart return -ENOMEM; 61cff261f6bd03612e792e4c8872c6ad049f743863James Smart else 62cff261f6bd03612e792e4c8872c6ad049f743863James Smart return 0; 63cff261f6bd03612e792e4c8872c6ad049f743863James Smart} 642e0fef85e098f6794956b8b80b111179fbb4cbb7James Smart 65e59058c44025d71c9b7f260076a932935d3bba95James Smart/** 663621a710a7dbb2d22a8e95d94bcf0c2d13ef57fcJames Smart * lpfc_mem_alloc - create and allocate all PCI and memory pools 67e59058c44025d71c9b7f260076a932935d3bba95James Smart * @phba: HBA to allocate pools for 68e59058c44025d71c9b7f260076a932935d3bba95James Smart * 69e59058c44025d71c9b7f260076a932935d3bba95James Smart * Description: Creates and allocates PCI pools lpfc_scsi_dma_buf_pool, 70da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * lpfc_mbuf_pool, lpfc_hrb_pool. Creates and allocates kmalloc-backed mempools 71e59058c44025d71c9b7f260076a932935d3bba95James Smart * for LPFC_MBOXQ_t and lpfc_nodelist. Also allocates the VPI bitmask. 72e59058c44025d71c9b7f260076a932935d3bba95James Smart * 73e59058c44025d71c9b7f260076a932935d3bba95James Smart * Notes: Not interrupt-safe. Must be called with no locks held. If any 74e59058c44025d71c9b7f260076a932935d3bba95James Smart * allocation fails, frees all successfully allocated memory before returning. 75e59058c44025d71c9b7f260076a932935d3bba95James Smart * 76e59058c44025d71c9b7f260076a932935d3bba95James Smart * Returns: 77e59058c44025d71c9b7f260076a932935d3bba95James Smart * 0 on success 78e59058c44025d71c9b7f260076a932935d3bba95James Smart * -ENOMEM on failure (if any memory allocations fail) 79e59058c44025d71c9b7f260076a932935d3bba95James Smart **/ 80dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>int 81da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smartlpfc_mem_alloc(struct lpfc_hba *phba, int align) 82dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>{ 83dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> struct lpfc_dma_pool *pool = &phba->lpfc_mbuf_safety_pool; 84dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> int i; 85dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> 8696f7077f671254e957a2815e54bb20e8d50f0bbcJames Smart if (phba->sli_rev == LPFC_SLI_REV4) { 8796f7077f671254e957a2815e54bb20e8d50f0bbcJames Smart /* Calculate alignment */ 8896f7077f671254e957a2815e54bb20e8d50f0bbcJames Smart if (phba->cfg_sg_dma_buf_size < SLI4_PAGE_SIZE) 8996f7077f671254e957a2815e54bb20e8d50f0bbcJames Smart i = phba->cfg_sg_dma_buf_size; 9096f7077f671254e957a2815e54bb20e8d50f0bbcJames Smart else 9196f7077f671254e957a2815e54bb20e8d50f0bbcJames Smart i = SLI4_PAGE_SIZE; 9296f7077f671254e957a2815e54bb20e8d50f0bbcJames Smart 93da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart phba->lpfc_scsi_dma_buf_pool = 94da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart pci_pool_create("lpfc_scsi_dma_buf_pool", 95da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart phba->pcidev, 96da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart phba->cfg_sg_dma_buf_size, 9796f7077f671254e957a2815e54bb20e8d50f0bbcJames Smart i, 98da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart 0); 9996f7077f671254e957a2815e54bb20e8d50f0bbcJames Smart } else { 100da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart phba->lpfc_scsi_dma_buf_pool = 101da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart pci_pool_create("lpfc_scsi_dma_buf_pool", 102da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart phba->pcidev, phba->cfg_sg_dma_buf_size, 103da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart align, 0); 10496f7077f671254e957a2815e54bb20e8d50f0bbcJames Smart } 10596f7077f671254e957a2815e54bb20e8d50f0bbcJames Smart 106dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> if (!phba->lpfc_scsi_dma_buf_pool) 107dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> goto fail; 108dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> 109dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> phba->lpfc_mbuf_pool = pci_pool_create("lpfc_mbuf_pool", phba->pcidev, 110da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart LPFC_BPL_SIZE, 111da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart align, 0); 112dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> if (!phba->lpfc_mbuf_pool) 113dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> goto fail_free_dma_buf_pool; 114dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> 115dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> pool->elements = kmalloc(sizeof(struct lpfc_dmabuf) * 116dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> LPFC_MBUF_POOL_SIZE, GFP_KERNEL); 117a96e0c7798057dd8055d0263c076fed975c10237Mariusz Kozlowski if (!pool->elements) 118a96e0c7798057dd8055d0263c076fed975c10237Mariusz Kozlowski goto fail_free_lpfc_mbuf_pool; 119a96e0c7798057dd8055d0263c076fed975c10237Mariusz Kozlowski 120dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> pool->max_count = 0; 121dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> pool->current_count = 0; 122dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> for ( i = 0; i < LPFC_MBUF_POOL_SIZE; i++) { 123dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> pool->elements[i].virt = pci_pool_alloc(phba->lpfc_mbuf_pool, 124dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> GFP_KERNEL, &pool->elements[i].phys); 125dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> if (!pool->elements[i].virt) 126dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> goto fail_free_mbuf_pool; 127dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> pool->max_count++; 128dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> pool->current_count++; 129dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> } 130dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> 1310eaae62abaa1ad1f231932b6cdd9fb1b91df6651Matthew Dobson phba->mbox_mem_pool = mempool_create_kmalloc_pool(LPFC_MEM_POOL_SIZE, 1320eaae62abaa1ad1f231932b6cdd9fb1b91df6651Matthew Dobson sizeof(LPFC_MBOXQ_t)); 133dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> if (!phba->mbox_mem_pool) 134dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> goto fail_free_mbuf_pool; 135dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> 1360eaae62abaa1ad1f231932b6cdd9fb1b91df6651Matthew Dobson phba->nlp_mem_pool = mempool_create_kmalloc_pool(LPFC_MEM_POOL_SIZE, 1370eaae62abaa1ad1f231932b6cdd9fb1b91df6651Matthew Dobson sizeof(struct lpfc_nodelist)); 138dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> if (!phba->nlp_mem_pool) 139dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> goto fail_free_mbox_pool; 1408568a4d2495ebcf5da38a2141c7633399143b1a5James Smart 1418568a4d2495ebcf5da38a2141c7633399143b1a5James Smart if (phba->sli_rev == LPFC_SLI_REV4) { 14219ca760979e4be41a3eb215fb8d0e96637161947James Smart phba->rrq_pool = 14319ca760979e4be41a3eb215fb8d0e96637161947James Smart mempool_create_kmalloc_pool(LPFC_MEM_POOL_SIZE, 14419ca760979e4be41a3eb215fb8d0e96637161947James Smart sizeof(struct lpfc_node_rrq)); 14519ca760979e4be41a3eb215fb8d0e96637161947James Smart if (!phba->rrq_pool) 14619ca760979e4be41a3eb215fb8d0e96637161947James Smart goto fail_free_nlp_mem_pool; 1478568a4d2495ebcf5da38a2141c7633399143b1a5James Smart phba->lpfc_hrb_pool = pci_pool_create("lpfc_hrb_pool", 148da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart phba->pcidev, 149da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart LPFC_HDR_BUF_SIZE, align, 0); 1508568a4d2495ebcf5da38a2141c7633399143b1a5James Smart if (!phba->lpfc_hrb_pool) 15119ca760979e4be41a3eb215fb8d0e96637161947James Smart goto fail_free_rrq_mem_pool; 1528568a4d2495ebcf5da38a2141c7633399143b1a5James Smart 1538568a4d2495ebcf5da38a2141c7633399143b1a5James Smart phba->lpfc_drb_pool = pci_pool_create("lpfc_drb_pool", 154da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart phba->pcidev, 155da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart LPFC_DATA_BUF_SIZE, align, 0); 1568568a4d2495ebcf5da38a2141c7633399143b1a5James Smart if (!phba->lpfc_drb_pool) 1578568a4d2495ebcf5da38a2141c7633399143b1a5James Smart goto fail_free_hrb_pool; 1588568a4d2495ebcf5da38a2141c7633399143b1a5James Smart phba->lpfc_hbq_pool = NULL; 1598568a4d2495ebcf5da38a2141c7633399143b1a5James Smart } else { 1608568a4d2495ebcf5da38a2141c7633399143b1a5James Smart phba->lpfc_hbq_pool = pci_pool_create("lpfc_hbq_pool", 1618568a4d2495ebcf5da38a2141c7633399143b1a5James Smart phba->pcidev, LPFC_BPL_SIZE, align, 0); 1628568a4d2495ebcf5da38a2141c7633399143b1a5James Smart if (!phba->lpfc_hbq_pool) 1638568a4d2495ebcf5da38a2141c7633399143b1a5James Smart goto fail_free_nlp_mem_pool; 1648568a4d2495ebcf5da38a2141c7633399143b1a5James Smart phba->lpfc_hrb_pool = NULL; 1658568a4d2495ebcf5da38a2141c7633399143b1a5James Smart phba->lpfc_drb_pool = NULL; 1668568a4d2495ebcf5da38a2141c7633399143b1a5James Smart } 16792d7f7b0cde3ad2260e7462b40867b57efd49851James Smart 1681ba981fd3ad1f91b8bb205ce6aac6aad45f2fa7aJames Smart if (phba->cfg_EnableXLane) { 1691ba981fd3ad1f91b8bb205ce6aac6aad45f2fa7aJames Smart phba->device_data_mem_pool = mempool_create_kmalloc_pool( 1701ba981fd3ad1f91b8bb205ce6aac6aad45f2fa7aJames Smart LPFC_DEVICE_DATA_POOL_SIZE, 1711ba981fd3ad1f91b8bb205ce6aac6aad45f2fa7aJames Smart sizeof(struct lpfc_device_data)); 1721ba981fd3ad1f91b8bb205ce6aac6aad45f2fa7aJames Smart if (!phba->device_data_mem_pool) 1731ba981fd3ad1f91b8bb205ce6aac6aad45f2fa7aJames Smart goto fail_free_hrb_pool; 1741ba981fd3ad1f91b8bb205ce6aac6aad45f2fa7aJames Smart } else { 1751ba981fd3ad1f91b8bb205ce6aac6aad45f2fa7aJames Smart phba->device_data_mem_pool = NULL; 1761ba981fd3ad1f91b8bb205ce6aac6aad45f2fa7aJames Smart } 1771ba981fd3ad1f91b8bb205ce6aac6aad45f2fa7aJames Smart 178dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> return 0; 1798568a4d2495ebcf5da38a2141c7633399143b1a5James Smart fail_free_hrb_pool: 180da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart pci_pool_destroy(phba->lpfc_hrb_pool); 181da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart phba->lpfc_hrb_pool = NULL; 18219ca760979e4be41a3eb215fb8d0e96637161947James Smart fail_free_rrq_mem_pool: 18319ca760979e4be41a3eb215fb8d0e96637161947James Smart mempool_destroy(phba->rrq_pool); 18419ca760979e4be41a3eb215fb8d0e96637161947James Smart phba->rrq_pool = NULL; 185ed957684294618602b48f1950b0c9bbcb036583fJames Smart fail_free_nlp_mem_pool: 186ed957684294618602b48f1950b0c9bbcb036583fJames Smart mempool_destroy(phba->nlp_mem_pool); 187ed957684294618602b48f1950b0c9bbcb036583fJames Smart phba->nlp_mem_pool = NULL; 188dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> fail_free_mbox_pool: 189dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> mempool_destroy(phba->mbox_mem_pool); 1902e0fef85e098f6794956b8b80b111179fbb4cbb7James Smart phba->mbox_mem_pool = NULL; 191dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> fail_free_mbuf_pool: 192a96e0c7798057dd8055d0263c076fed975c10237Mariusz Kozlowski while (i--) 193dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> pci_pool_free(phba->lpfc_mbuf_pool, pool->elements[i].virt, 194dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> pool->elements[i].phys); 195dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> kfree(pool->elements); 196a96e0c7798057dd8055d0263c076fed975c10237Mariusz Kozlowski fail_free_lpfc_mbuf_pool: 197dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> pci_pool_destroy(phba->lpfc_mbuf_pool); 1982e0fef85e098f6794956b8b80b111179fbb4cbb7James Smart phba->lpfc_mbuf_pool = NULL; 199dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> fail_free_dma_buf_pool: 200dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> pci_pool_destroy(phba->lpfc_scsi_dma_buf_pool); 2012e0fef85e098f6794956b8b80b111179fbb4cbb7James Smart phba->lpfc_scsi_dma_buf_pool = NULL; 202dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> fail: 203dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> return -ENOMEM; 204dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>} 205dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> 206e59058c44025d71c9b7f260076a932935d3bba95James Smart/** 207da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * lpfc_mem_free - Frees memory allocated by lpfc_mem_alloc 208e59058c44025d71c9b7f260076a932935d3bba95James Smart * @phba: HBA to free memory for 209e59058c44025d71c9b7f260076a932935d3bba95James Smart * 210da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * Description: Free the memory allocated by lpfc_mem_alloc routine. This 211da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * routine is a the counterpart of lpfc_mem_alloc. 212e59058c44025d71c9b7f260076a932935d3bba95James Smart * 213e59058c44025d71c9b7f260076a932935d3bba95James Smart * Returns: None 214e59058c44025d71c9b7f260076a932935d3bba95James Smart **/ 215dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>void 216da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smartlpfc_mem_free(struct lpfc_hba *phba) 217dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>{ 218dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> int i; 219da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart struct lpfc_dma_pool *pool = &phba->lpfc_mbuf_safety_pool; 2201ba981fd3ad1f91b8bb205ce6aac6aad45f2fa7aJames Smart struct lpfc_device_data *device_data; 221dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> 222da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart /* Free HBQ pools */ 223ed957684294618602b48f1950b0c9bbcb036583fJames Smart lpfc_sli_hbqbuf_free_all(phba); 2248568a4d2495ebcf5da38a2141c7633399143b1a5James Smart if (phba->lpfc_drb_pool) 2258568a4d2495ebcf5da38a2141c7633399143b1a5James Smart pci_pool_destroy(phba->lpfc_drb_pool); 226da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart phba->lpfc_drb_pool = NULL; 2278568a4d2495ebcf5da38a2141c7633399143b1a5James Smart if (phba->lpfc_hrb_pool) 2288568a4d2495ebcf5da38a2141c7633399143b1a5James Smart pci_pool_destroy(phba->lpfc_hrb_pool); 229da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart phba->lpfc_hrb_pool = NULL; 230da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart 2318568a4d2495ebcf5da38a2141c7633399143b1a5James Smart if (phba->lpfc_hbq_pool) 2328568a4d2495ebcf5da38a2141c7633399143b1a5James Smart pci_pool_destroy(phba->lpfc_hbq_pool); 2338568a4d2495ebcf5da38a2141c7633399143b1a5James Smart phba->lpfc_hbq_pool = NULL; 2348568a4d2495ebcf5da38a2141c7633399143b1a5James Smart 23521a688cdfa2f48ca9132cf152b0cb7274cb37b98James Smart if (phba->rrq_pool) 23621a688cdfa2f48ca9132cf152b0cb7274cb37b98James Smart mempool_destroy(phba->rrq_pool); 23721a688cdfa2f48ca9132cf152b0cb7274cb37b98James Smart phba->rrq_pool = NULL; 23821a688cdfa2f48ca9132cf152b0cb7274cb37b98James Smart 239da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart /* Free NLP memory pool */ 240da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart mempool_destroy(phba->nlp_mem_pool); 241da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart phba->nlp_mem_pool = NULL; 242cff261f6bd03612e792e4c8872c6ad049f743863James Smart if (phba->sli_rev == LPFC_SLI_REV4 && phba->active_rrq_pool) { 243cff261f6bd03612e792e4c8872c6ad049f743863James Smart mempool_destroy(phba->active_rrq_pool); 244cff261f6bd03612e792e4c8872c6ad049f743863James Smart phba->active_rrq_pool = NULL; 245cff261f6bd03612e792e4c8872c6ad049f743863James Smart } 246da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart 247da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart /* Free mbox memory pool */ 248da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart mempool_destroy(phba->mbox_mem_pool); 249da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart phba->mbox_mem_pool = NULL; 250da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart 251da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart /* Free MBUF memory pool */ 252da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart for (i = 0; i < pool->current_count; i++) 253da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart pci_pool_free(phba->lpfc_mbuf_pool, pool->elements[i].virt, 254da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart pool->elements[i].phys); 255da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart kfree(pool->elements); 256da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart 257da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart pci_pool_destroy(phba->lpfc_mbuf_pool); 258da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart phba->lpfc_mbuf_pool = NULL; 259ed957684294618602b48f1950b0c9bbcb036583fJames Smart 260da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart /* Free DMA buffer memory pool */ 261da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart pci_pool_destroy(phba->lpfc_scsi_dma_buf_pool); 262da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart phba->lpfc_scsi_dma_buf_pool = NULL; 263da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart 2641ba981fd3ad1f91b8bb205ce6aac6aad45f2fa7aJames Smart /* Free Device Data memory pool */ 2651ba981fd3ad1f91b8bb205ce6aac6aad45f2fa7aJames Smart if (phba->device_data_mem_pool) { 2661ba981fd3ad1f91b8bb205ce6aac6aad45f2fa7aJames Smart /* Ensure all objects have been returned to the pool */ 2671ba981fd3ad1f91b8bb205ce6aac6aad45f2fa7aJames Smart while (!list_empty(&phba->luns)) { 2681ba981fd3ad1f91b8bb205ce6aac6aad45f2fa7aJames Smart device_data = list_first_entry(&phba->luns, 2691ba981fd3ad1f91b8bb205ce6aac6aad45f2fa7aJames Smart struct lpfc_device_data, 2701ba981fd3ad1f91b8bb205ce6aac6aad45f2fa7aJames Smart listentry); 2711ba981fd3ad1f91b8bb205ce6aac6aad45f2fa7aJames Smart list_del(&device_data->listentry); 2721ba981fd3ad1f91b8bb205ce6aac6aad45f2fa7aJames Smart mempool_free(device_data, phba->device_data_mem_pool); 2731ba981fd3ad1f91b8bb205ce6aac6aad45f2fa7aJames Smart } 2741ba981fd3ad1f91b8bb205ce6aac6aad45f2fa7aJames Smart mempool_destroy(phba->device_data_mem_pool); 2751ba981fd3ad1f91b8bb205ce6aac6aad45f2fa7aJames Smart } 2761ba981fd3ad1f91b8bb205ce6aac6aad45f2fa7aJames Smart phba->device_data_mem_pool = NULL; 277da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart return; 278da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart} 279da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart 280da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart/** 281da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * lpfc_mem_free_all - Frees all PCI and driver memory 282da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * @phba: HBA to free memory for 283da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * 284da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * Description: Free memory from PCI and driver memory pools and also those 285da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * used : lpfc_scsi_dma_buf_pool, lpfc_mbuf_pool, lpfc_hrb_pool. Frees 286da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * kmalloc-backed mempools for LPFC_MBOXQ_t and lpfc_nodelist. Also frees 287da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * the VPI bitmask. 288da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * 289da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * Returns: None 290da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart **/ 291da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smartvoid 292da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smartlpfc_mem_free_all(struct lpfc_hba *phba) 293da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart{ 294da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart struct lpfc_sli *psli = &phba->sli; 295da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart LPFC_MBOXQ_t *mbox, *next_mbox; 296da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart struct lpfc_dmabuf *mp; 297da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart 298da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart /* Free memory used in mailbox queue back to mailbox memory pool */ 299dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> list_for_each_entry_safe(mbox, next_mbox, &psli->mboxq, list) { 300dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> mp = (struct lpfc_dmabuf *) (mbox->context1); 301dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> if (mp) { 302dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> lpfc_mbuf_free(phba, mp->virt, mp->phys); 303dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> kfree(mp); 304dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> } 305dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> list_del(&mbox->list); 306dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> mempool_free(mbox, phba->mbox_mem_pool); 307dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> } 308da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart /* Free memory used in mailbox cmpl list back to mailbox memory pool */ 30992d7f7b0cde3ad2260e7462b40867b57efd49851James Smart list_for_each_entry_safe(mbox, next_mbox, &psli->mboxq_cmpl, list) { 31092d7f7b0cde3ad2260e7462b40867b57efd49851James Smart mp = (struct lpfc_dmabuf *) (mbox->context1); 31192d7f7b0cde3ad2260e7462b40867b57efd49851James Smart if (mp) { 31292d7f7b0cde3ad2260e7462b40867b57efd49851James Smart lpfc_mbuf_free(phba, mp->virt, mp->phys); 31392d7f7b0cde3ad2260e7462b40867b57efd49851James Smart kfree(mp); 31492d7f7b0cde3ad2260e7462b40867b57efd49851James Smart } 31592d7f7b0cde3ad2260e7462b40867b57efd49851James Smart list_del(&mbox->list); 31692d7f7b0cde3ad2260e7462b40867b57efd49851James Smart mempool_free(mbox, phba->mbox_mem_pool); 31792d7f7b0cde3ad2260e7462b40867b57efd49851James Smart } 318da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart /* Free the active mailbox command back to the mailbox memory pool */ 319da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart spin_lock_irq(&phba->hbalock); 320dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; 321da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart spin_unlock_irq(&phba->hbalock); 322dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> if (psli->mbox_active) { 323dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> mbox = psli->mbox_active; 324dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> mp = (struct lpfc_dmabuf *) (mbox->context1); 325dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> if (mp) { 326dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> lpfc_mbuf_free(phba, mp->virt, mp->phys); 327dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> kfree(mp); 328dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> } 329dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> mempool_free(mbox, phba->mbox_mem_pool); 330dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> psli->mbox_active = NULL; 331dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> } 332dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> 333da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart /* Free and destroy all the allocated memory pools */ 334da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart lpfc_mem_free(phba); 3352e0fef85e098f6794956b8b80b111179fbb4cbb7James Smart 336e59058c44025d71c9b7f260076a932935d3bba95James Smart /* Free the iocb lookup array */ 3379f49d3b05f092b89e774be20c654ceb0c64a7d19James Smart kfree(psli->iocbq_lookup); 3389f49d3b05f092b89e774be20c654ceb0c64a7d19James Smart psli->iocbq_lookup = NULL; 339da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart 340da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart return; 341dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>} 342dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> 343e59058c44025d71c9b7f260076a932935d3bba95James Smart/** 3443621a710a7dbb2d22a8e95d94bcf0c2d13ef57fcJames Smart * lpfc_mbuf_alloc - Allocate an mbuf from the lpfc_mbuf_pool PCI pool 345e59058c44025d71c9b7f260076a932935d3bba95James Smart * @phba: HBA which owns the pool to allocate from 346e59058c44025d71c9b7f260076a932935d3bba95James Smart * @mem_flags: indicates if this is a priority (MEM_PRI) allocation 347e59058c44025d71c9b7f260076a932935d3bba95James Smart * @handle: used to return the DMA-mapped address of the mbuf 348e59058c44025d71c9b7f260076a932935d3bba95James Smart * 349e59058c44025d71c9b7f260076a932935d3bba95James Smart * Description: Allocates a DMA-mapped buffer from the lpfc_mbuf_pool PCI pool. 350e59058c44025d71c9b7f260076a932935d3bba95James Smart * Allocates from generic pci_pool_alloc function first and if that fails and 351e59058c44025d71c9b7f260076a932935d3bba95James Smart * mem_flags has MEM_PRI set (the only defined flag), returns an mbuf from the 352e59058c44025d71c9b7f260076a932935d3bba95James Smart * HBA's pool. 353e59058c44025d71c9b7f260076a932935d3bba95James Smart * 354e59058c44025d71c9b7f260076a932935d3bba95James Smart * Notes: Not interrupt-safe. Must be called with no locks held. Takes 355e59058c44025d71c9b7f260076a932935d3bba95James Smart * phba->hbalock. 356e59058c44025d71c9b7f260076a932935d3bba95James Smart * 357e59058c44025d71c9b7f260076a932935d3bba95James Smart * Returns: 358e59058c44025d71c9b7f260076a932935d3bba95James Smart * pointer to the allocated mbuf on success 359e59058c44025d71c9b7f260076a932935d3bba95James Smart * NULL on failure 360e59058c44025d71c9b7f260076a932935d3bba95James Smart **/ 361dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>void * 362dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>lpfc_mbuf_alloc(struct lpfc_hba *phba, int mem_flags, dma_addr_t *handle) 363dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>{ 364dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> struct lpfc_dma_pool *pool = &phba->lpfc_mbuf_safety_pool; 3652e0fef85e098f6794956b8b80b111179fbb4cbb7James Smart unsigned long iflags; 366dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> void *ret; 367dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> 368dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> ret = pci_pool_alloc(phba->lpfc_mbuf_pool, GFP_KERNEL, handle); 369dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> 3702e0fef85e098f6794956b8b80b111179fbb4cbb7James Smart spin_lock_irqsave(&phba->hbalock, iflags); 37192d7f7b0cde3ad2260e7462b40867b57efd49851James Smart if (!ret && (mem_flags & MEM_PRI) && pool->current_count) { 372dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> pool->current_count--; 373dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> ret = pool->elements[pool->current_count].virt; 374dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> *handle = pool->elements[pool->current_count].phys; 375dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> } 3762e0fef85e098f6794956b8b80b111179fbb4cbb7James Smart spin_unlock_irqrestore(&phba->hbalock, iflags); 377dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> return ret; 378dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>} 379dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> 380e59058c44025d71c9b7f260076a932935d3bba95James Smart/** 3813621a710a7dbb2d22a8e95d94bcf0c2d13ef57fcJames Smart * __lpfc_mbuf_free - Free an mbuf from the lpfc_mbuf_pool PCI pool (locked) 382e59058c44025d71c9b7f260076a932935d3bba95James Smart * @phba: HBA which owns the pool to return to 383e59058c44025d71c9b7f260076a932935d3bba95James Smart * @virt: mbuf to free 384e59058c44025d71c9b7f260076a932935d3bba95James Smart * @dma: the DMA-mapped address of the lpfc_mbuf_pool to be freed 385e59058c44025d71c9b7f260076a932935d3bba95James Smart * 386e59058c44025d71c9b7f260076a932935d3bba95James Smart * Description: Returns an mbuf lpfc_mbuf_pool to the lpfc_mbuf_safety_pool if 387e59058c44025d71c9b7f260076a932935d3bba95James Smart * it is below its max_count, frees the mbuf otherwise. 388e59058c44025d71c9b7f260076a932935d3bba95James Smart * 389e59058c44025d71c9b7f260076a932935d3bba95James Smart * Notes: Must be called with phba->hbalock held to synchronize access to 390e59058c44025d71c9b7f260076a932935d3bba95James Smart * lpfc_mbuf_safety_pool. 391e59058c44025d71c9b7f260076a932935d3bba95James Smart * 392e59058c44025d71c9b7f260076a932935d3bba95James Smart * Returns: None 393e59058c44025d71c9b7f260076a932935d3bba95James Smart **/ 394dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>void 3952e0fef85e098f6794956b8b80b111179fbb4cbb7James Smart__lpfc_mbuf_free(struct lpfc_hba * phba, void *virt, dma_addr_t dma) 396dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>{ 397dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> struct lpfc_dma_pool *pool = &phba->lpfc_mbuf_safety_pool; 398dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> 399dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> if (pool->current_count < pool->max_count) { 400dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> pool->elements[pool->current_count].virt = virt; 401dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> pool->elements[pool->current_count].phys = dma; 402dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> pool->current_count++; 403dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> } else { 404dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> pci_pool_free(phba->lpfc_mbuf_pool, virt, dma); 405dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> } 406dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com> return; 407dea3101e0a5c897d2c9351a7444e139db9f40247<jejb@titanic.il.steeleye.com>} 4082e0fef85e098f6794956b8b80b111179fbb4cbb7James Smart 409e59058c44025d71c9b7f260076a932935d3bba95James Smart/** 4103621a710a7dbb2d22a8e95d94bcf0c2d13ef57fcJames Smart * lpfc_mbuf_free - Free an mbuf from the lpfc_mbuf_pool PCI pool (unlocked) 411e59058c44025d71c9b7f260076a932935d3bba95James Smart * @phba: HBA which owns the pool to return to 412e59058c44025d71c9b7f260076a932935d3bba95James Smart * @virt: mbuf to free 413e59058c44025d71c9b7f260076a932935d3bba95James Smart * @dma: the DMA-mapped address of the lpfc_mbuf_pool to be freed 414e59058c44025d71c9b7f260076a932935d3bba95James Smart * 415e59058c44025d71c9b7f260076a932935d3bba95James Smart * Description: Returns an mbuf lpfc_mbuf_pool to the lpfc_mbuf_safety_pool if 416e59058c44025d71c9b7f260076a932935d3bba95James Smart * it is below its max_count, frees the mbuf otherwise. 417e59058c44025d71c9b7f260076a932935d3bba95James Smart * 418e59058c44025d71c9b7f260076a932935d3bba95James Smart * Notes: Takes phba->hbalock. Can be called with or without other locks held. 419e59058c44025d71c9b7f260076a932935d3bba95James Smart * 420e59058c44025d71c9b7f260076a932935d3bba95James Smart * Returns: None 421e59058c44025d71c9b7f260076a932935d3bba95James Smart **/ 4222e0fef85e098f6794956b8b80b111179fbb4cbb7James Smartvoid 4232e0fef85e098f6794956b8b80b111179fbb4cbb7James Smartlpfc_mbuf_free(struct lpfc_hba * phba, void *virt, dma_addr_t dma) 4242e0fef85e098f6794956b8b80b111179fbb4cbb7James Smart{ 4252e0fef85e098f6794956b8b80b111179fbb4cbb7James Smart unsigned long iflags; 4262e0fef85e098f6794956b8b80b111179fbb4cbb7James Smart 4272e0fef85e098f6794956b8b80b111179fbb4cbb7James Smart spin_lock_irqsave(&phba->hbalock, iflags); 4282e0fef85e098f6794956b8b80b111179fbb4cbb7James Smart __lpfc_mbuf_free(phba, virt, dma); 4292e0fef85e098f6794956b8b80b111179fbb4cbb7James Smart spin_unlock_irqrestore(&phba->hbalock, iflags); 4302e0fef85e098f6794956b8b80b111179fbb4cbb7James Smart return; 4312e0fef85e098f6794956b8b80b111179fbb4cbb7James Smart} 432ed957684294618602b48f1950b0c9bbcb036583fJames Smart 433e59058c44025d71c9b7f260076a932935d3bba95James Smart/** 4343621a710a7dbb2d22a8e95d94bcf0c2d13ef57fcJames Smart * lpfc_els_hbq_alloc - Allocate an HBQ buffer 435e59058c44025d71c9b7f260076a932935d3bba95James Smart * @phba: HBA to allocate HBQ buffer for 436e59058c44025d71c9b7f260076a932935d3bba95James Smart * 437da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * Description: Allocates a DMA-mapped HBQ buffer from the lpfc_hrb_pool PCI 438e59058c44025d71c9b7f260076a932935d3bba95James Smart * pool along a non-DMA-mapped container for it. 439e59058c44025d71c9b7f260076a932935d3bba95James Smart * 440e59058c44025d71c9b7f260076a932935d3bba95James Smart * Notes: Not interrupt-safe. Must be called with no locks held. 441e59058c44025d71c9b7f260076a932935d3bba95James Smart * 442e59058c44025d71c9b7f260076a932935d3bba95James Smart * Returns: 443e59058c44025d71c9b7f260076a932935d3bba95James Smart * pointer to HBQ on success 444e59058c44025d71c9b7f260076a932935d3bba95James Smart * NULL on failure 445e59058c44025d71c9b7f260076a932935d3bba95James Smart **/ 44651ef4c26891a734bc8416b639ad460a8162926bcJames Smartstruct hbq_dmabuf * 44751ef4c26891a734bc8416b639ad460a8162926bcJames Smartlpfc_els_hbq_alloc(struct lpfc_hba *phba) 448ed957684294618602b48f1950b0c9bbcb036583fJames Smart{ 44951ef4c26891a734bc8416b639ad460a8162926bcJames Smart struct hbq_dmabuf *hbqbp; 45051ef4c26891a734bc8416b639ad460a8162926bcJames Smart 4512e90f4b5a2a0ce5ab72c0c81c74269bd0a62522bJames Smart hbqbp = kzalloc(sizeof(struct hbq_dmabuf), GFP_KERNEL); 45251ef4c26891a734bc8416b639ad460a8162926bcJames Smart if (!hbqbp) 45351ef4c26891a734bc8416b639ad460a8162926bcJames Smart return NULL; 45451ef4c26891a734bc8416b639ad460a8162926bcJames Smart 4558568a4d2495ebcf5da38a2141c7633399143b1a5James Smart hbqbp->dbuf.virt = pci_pool_alloc(phba->lpfc_hbq_pool, GFP_KERNEL, 45651ef4c26891a734bc8416b639ad460a8162926bcJames Smart &hbqbp->dbuf.phys); 45751ef4c26891a734bc8416b639ad460a8162926bcJames Smart if (!hbqbp->dbuf.virt) { 45851ef4c26891a734bc8416b639ad460a8162926bcJames Smart kfree(hbqbp); 45951ef4c26891a734bc8416b639ad460a8162926bcJames Smart return NULL; 46051ef4c26891a734bc8416b639ad460a8162926bcJames Smart } 46151ef4c26891a734bc8416b639ad460a8162926bcJames Smart hbqbp->size = LPFC_BPL_SIZE; 46251ef4c26891a734bc8416b639ad460a8162926bcJames Smart return hbqbp; 463ed957684294618602b48f1950b0c9bbcb036583fJames Smart} 464ed957684294618602b48f1950b0c9bbcb036583fJames Smart 465e59058c44025d71c9b7f260076a932935d3bba95James Smart/** 466da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * lpfc_els_hbq_free - Frees an HBQ buffer allocated with lpfc_els_hbq_alloc 467e59058c44025d71c9b7f260076a932935d3bba95James Smart * @phba: HBA buffer was allocated for 468e59058c44025d71c9b7f260076a932935d3bba95James Smart * @hbqbp: HBQ container returned by lpfc_els_hbq_alloc 469e59058c44025d71c9b7f260076a932935d3bba95James Smart * 470e59058c44025d71c9b7f260076a932935d3bba95James Smart * Description: Frees both the container and the DMA-mapped buffer returned by 471e59058c44025d71c9b7f260076a932935d3bba95James Smart * lpfc_els_hbq_alloc. 472e59058c44025d71c9b7f260076a932935d3bba95James Smart * 473e59058c44025d71c9b7f260076a932935d3bba95James Smart * Notes: Can be called with or without locks held. 474e59058c44025d71c9b7f260076a932935d3bba95James Smart * 475e59058c44025d71c9b7f260076a932935d3bba95James Smart * Returns: None 476e59058c44025d71c9b7f260076a932935d3bba95James Smart **/ 477ed957684294618602b48f1950b0c9bbcb036583fJames Smartvoid 47851ef4c26891a734bc8416b639ad460a8162926bcJames Smartlpfc_els_hbq_free(struct lpfc_hba *phba, struct hbq_dmabuf *hbqbp) 479ed957684294618602b48f1950b0c9bbcb036583fJames Smart{ 4808568a4d2495ebcf5da38a2141c7633399143b1a5James Smart pci_pool_free(phba->lpfc_hbq_pool, hbqbp->dbuf.virt, hbqbp->dbuf.phys); 48151ef4c26891a734bc8416b639ad460a8162926bcJames Smart kfree(hbqbp); 482ed957684294618602b48f1950b0c9bbcb036583fJames Smart return; 483ed957684294618602b48f1950b0c9bbcb036583fJames Smart} 484ed957684294618602b48f1950b0c9bbcb036583fJames Smart 485e59058c44025d71c9b7f260076a932935d3bba95James Smart/** 486da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * lpfc_sli4_rb_alloc - Allocate an SLI4 Receive buffer 487da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * @phba: HBA to allocate a receive buffer for 488da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * 489da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * Description: Allocates a DMA-mapped receive buffer from the lpfc_hrb_pool PCI 490da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * pool along a non-DMA-mapped container for it. 491da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * 492da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * Notes: Not interrupt-safe. Must be called with no locks held. 493da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * 494da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * Returns: 495da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * pointer to HBQ on success 496da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * NULL on failure 497da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart **/ 498da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smartstruct hbq_dmabuf * 499da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smartlpfc_sli4_rb_alloc(struct lpfc_hba *phba) 500da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart{ 501da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart struct hbq_dmabuf *dma_buf; 502da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart 5032e90f4b5a2a0ce5ab72c0c81c74269bd0a62522bJames Smart dma_buf = kzalloc(sizeof(struct hbq_dmabuf), GFP_KERNEL); 504da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart if (!dma_buf) 505da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart return NULL; 506da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart 507da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart dma_buf->hbuf.virt = pci_pool_alloc(phba->lpfc_hrb_pool, GFP_KERNEL, 508da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart &dma_buf->hbuf.phys); 509da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart if (!dma_buf->hbuf.virt) { 510da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart kfree(dma_buf); 511da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart return NULL; 512da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart } 513da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart dma_buf->dbuf.virt = pci_pool_alloc(phba->lpfc_drb_pool, GFP_KERNEL, 514da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart &dma_buf->dbuf.phys); 515da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart if (!dma_buf->dbuf.virt) { 516da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart pci_pool_free(phba->lpfc_hrb_pool, dma_buf->hbuf.virt, 517da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart dma_buf->hbuf.phys); 518da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart kfree(dma_buf); 519da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart return NULL; 520da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart } 521da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart dma_buf->size = LPFC_BPL_SIZE; 522da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart return dma_buf; 523da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart} 524da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart 525da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart/** 526da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * lpfc_sli4_rb_free - Frees a receive buffer 527da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * @phba: HBA buffer was allocated for 528da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * @dmab: DMA Buffer container returned by lpfc_sli4_hbq_alloc 529da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * 530da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * Description: Frees both the container and the DMA-mapped buffers returned by 531da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * lpfc_sli4_rb_alloc. 532da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * 533da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * Notes: Can be called with or without locks held. 534da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * 535da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart * Returns: None 536da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart **/ 537da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smartvoid 538da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smartlpfc_sli4_rb_free(struct lpfc_hba *phba, struct hbq_dmabuf *dmab) 539da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart{ 540da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart pci_pool_free(phba->lpfc_hrb_pool, dmab->hbuf.virt, dmab->hbuf.phys); 541da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart pci_pool_free(phba->lpfc_drb_pool, dmab->dbuf.virt, dmab->dbuf.phys); 542da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart kfree(dmab); 543da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart return; 544da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart} 545da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart 546da0436e915a5c17ee79e72c1bf978a4ebb1cbf4dJames Smart/** 5473621a710a7dbb2d22a8e95d94bcf0c2d13ef57fcJames Smart * lpfc_in_buf_free - Free a DMA buffer 548e59058c44025d71c9b7f260076a932935d3bba95James Smart * @phba: HBA buffer is associated with 549e59058c44025d71c9b7f260076a932935d3bba95James Smart * @mp: Buffer to free 550e59058c44025d71c9b7f260076a932935d3bba95James Smart * 551e59058c44025d71c9b7f260076a932935d3bba95James Smart * Description: Frees the given DMA buffer in the appropriate way given if the 552e59058c44025d71c9b7f260076a932935d3bba95James Smart * HBA is running in SLI3 mode with HBQs enabled. 553e59058c44025d71c9b7f260076a932935d3bba95James Smart * 554e59058c44025d71c9b7f260076a932935d3bba95James Smart * Notes: Takes phba->hbalock. Can be called with or without other locks held. 555e59058c44025d71c9b7f260076a932935d3bba95James Smart * 556e59058c44025d71c9b7f260076a932935d3bba95James Smart * Returns: None 557e59058c44025d71c9b7f260076a932935d3bba95James Smart **/ 55892d7f7b0cde3ad2260e7462b40867b57efd49851James Smartvoid 55992d7f7b0cde3ad2260e7462b40867b57efd49851James Smartlpfc_in_buf_free(struct lpfc_hba *phba, struct lpfc_dmabuf *mp) 56092d7f7b0cde3ad2260e7462b40867b57efd49851James Smart{ 56192d7f7b0cde3ad2260e7462b40867b57efd49851James Smart struct hbq_dmabuf *hbq_entry; 5623163f725a5d071eea1830bbbfab78cfe3fc9baafJames Smart unsigned long flags; 56392d7f7b0cde3ad2260e7462b40867b57efd49851James Smart 5647f5f3d0d02aa2f124e764aee5c775589ce72fd42James Smart if (!mp) 5657f5f3d0d02aa2f124e764aee5c775589ce72fd42James Smart return; 5667f5f3d0d02aa2f124e764aee5c775589ce72fd42James Smart 56792d7f7b0cde3ad2260e7462b40867b57efd49851James Smart if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) { 5683163f725a5d071eea1830bbbfab78cfe3fc9baafJames Smart /* Check whether HBQ is still in use */ 5693163f725a5d071eea1830bbbfab78cfe3fc9baafJames Smart spin_lock_irqsave(&phba->hbalock, flags); 5703163f725a5d071eea1830bbbfab78cfe3fc9baafJames Smart if (!phba->hbq_in_use) { 5713163f725a5d071eea1830bbbfab78cfe3fc9baafJames Smart spin_unlock_irqrestore(&phba->hbalock, flags); 5723163f725a5d071eea1830bbbfab78cfe3fc9baafJames Smart return; 5733163f725a5d071eea1830bbbfab78cfe3fc9baafJames Smart } 57492d7f7b0cde3ad2260e7462b40867b57efd49851James Smart hbq_entry = container_of(mp, struct hbq_dmabuf, dbuf); 5753163f725a5d071eea1830bbbfab78cfe3fc9baafJames Smart list_del(&hbq_entry->dbuf.list); 57692d7f7b0cde3ad2260e7462b40867b57efd49851James Smart if (hbq_entry->tag == -1) { 57751ef4c26891a734bc8416b639ad460a8162926bcJames Smart (phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer) 57851ef4c26891a734bc8416b639ad460a8162926bcJames Smart (phba, hbq_entry); 57992d7f7b0cde3ad2260e7462b40867b57efd49851James Smart } else { 58092d7f7b0cde3ad2260e7462b40867b57efd49851James Smart lpfc_sli_free_hbq(phba, hbq_entry); 58192d7f7b0cde3ad2260e7462b40867b57efd49851James Smart } 5823163f725a5d071eea1830bbbfab78cfe3fc9baafJames Smart spin_unlock_irqrestore(&phba->hbalock, flags); 58392d7f7b0cde3ad2260e7462b40867b57efd49851James Smart } else { 58492d7f7b0cde3ad2260e7462b40867b57efd49851James Smart lpfc_mbuf_free(phba, mp->virt, mp->phys); 58592d7f7b0cde3ad2260e7462b40867b57efd49851James Smart kfree(mp); 58692d7f7b0cde3ad2260e7462b40867b57efd49851James Smart } 58792d7f7b0cde3ad2260e7462b40867b57efd49851James Smart return; 58892d7f7b0cde3ad2260e7462b40867b57efd49851James Smart} 589