diff options
| author |   James Smart <james.smart@emulex.com> | 2014-02-20 09:56:45 -0500 |
|---|---|---|
| committer |   James Bottomley <JBottomley@Parallels.com> | 2014-03-15 10:18:56 -0700 |
| commit | 1ba981fd3ad1f91b8bb205ce6aac6aad45f2fa7a (patch) | |
| tree | c5638d855f177a4be300a2df71d8d621a2cfc0ca /drivers/scsi/lpfc/lpfc_mem.c | |
| parent | [SCSI] lpfc 8.3.45: Added dport mailbox pass through support. (diff) | |
| download | linux-dev-1ba981fd3ad1f91b8bb205ce6aac6aad45f2fa7a.tar.xz linux-dev-1ba981fd3ad1f91b8bb205ce6aac6aad45f2fa7a.zip | |
[SCSI] lpfc 8.3.45: Incorporated support of a low-latency io path
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'drivers/scsi/lpfc/lpfc_mem.c')
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_mem.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/scsi/lpfc/lpfc_mem.c b/drivers/scsi/lpfc/lpfc_mem.c index b1db23c70781..ed419aad2b1f 100644 --- a/drivers/scsi/lpfc/lpfc_mem.c +++ b/drivers/scsi/lpfc/lpfc_mem.c @@ -42,6 +42,7 @@ #define LPFC_MBUF_POOL_SIZE 64 /* max elements in MBUF safety pool */ #define LPFC_MEM_POOL_SIZE 64 /* max elem in non-DMA safety pool */ +#define LPFC_DEVICE_DATA_POOL_SIZE 64 /* max elements in device data pool */ int lpfc_mem_alloc_active_rrq_pool_s4(struct lpfc_hba *phba) { @@ -164,6 +165,16 @@ lpfc_mem_alloc(struct lpfc_hba *phba, int align) phba->lpfc_drb_pool = NULL; } + if (phba->cfg_EnableXLane) { + phba->device_data_mem_pool = mempool_create_kmalloc_pool( + LPFC_DEVICE_DATA_POOL_SIZE, + sizeof(struct lpfc_device_data)); + if (!phba->device_data_mem_pool) + goto fail_free_hrb_pool; + } else { + phba->device_data_mem_pool = NULL; + } + return 0; fail_free_hrb_pool: pci_pool_destroy(phba->lpfc_hrb_pool); @@ -206,6 +217,7 @@ lpfc_mem_free(struct lpfc_hba *phba) { int i; struct lpfc_dma_pool *pool = &phba->lpfc_mbuf_safety_pool; + struct lpfc_device_data *device_data; /* Free HBQ pools */ lpfc_sli_hbqbuf_free_all(phba); @@ -249,6 +261,19 @@ lpfc_mem_free(struct lpfc_hba *phba) pci_pool_destroy(phba->lpfc_scsi_dma_buf_pool); phba->lpfc_scsi_dma_buf_pool = NULL; + /* Free Device Data memory pool */ + if (phba->device_data_mem_pool) { + /* Ensure all objects have been returned to the pool */ + while (!list_empty(&phba->luns)) { + device_data = list_first_entry(&phba->luns, + struct lpfc_device_data, + listentry); + list_del(&device_data->listentry); + mempool_free(device_data, phba->device_data_mem_pool); + } + mempool_destroy(phba->device_data_mem_pool); + } + phba->device_data_mem_pool = NULL; return; } |