diff options
author | Roland Dreier <roland@topspin.com> | 2005-06-27 14:36:45 -0700 |
---|---|---|
committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-06-27 15:11:46 -0700 |
commit | ed878458eeff9754d66f1b0325df6ebbfcdce668 (patch) | |
tree | eab302706f069a7922e1d953b5f33b61bdc868a4 /drivers/infiniband/hw/mthca/mthca_cmd.c | |
parent | 80fd8238734c852a8ed1ea39f8444a2df33bd161 (diff) |
[PATCH] IB/mthca: Align FW command mailboxes to 4K
Future versions of Mellanox HCA firmware will require command mailboxes to be
aligned to 4K. Support this by using a pci_pool to allocate all mailboxes.
This has the added benefit of shrinking the source and text of mthca.
Signed-off-by: Roland Dreier <roland@topspin.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/infiniband/hw/mthca/mthca_cmd.c')
-rw-r--r-- | drivers/infiniband/hw/mthca/mthca_cmd.c | 510 |
1 files changed, 206 insertions, 304 deletions
diff --git a/drivers/infiniband/hw/mthca/mthca_cmd.c b/drivers/infiniband/hw/mthca/mthca_cmd.c index 78d4891720e..1557a522d83 100644 --- a/drivers/infiniband/hw/mthca/mthca_cmd.c +++ b/drivers/infiniband/hw/mthca/mthca_cmd.c @@ -444,11 +444,20 @@ int mthca_cmd_init(struct mthca_dev *dev) return -ENOMEM; } + dev->cmd.pool = pci_pool_create("mthca_cmd", dev->pdev, + MTHCA_MAILBOX_SIZE, + MTHCA_MAILBOX_SIZE, 0); + if (!dev->cmd.pool) { + iounmap(dev->hcr); + return -ENOMEM; + } + return 0; } void mthca_cmd_cleanup(struct mthca_dev *dev) { + pci_pool_destroy(dev->cmd.pool); iounmap(dev->hcr); } @@ -510,6 +519,33 @@ void mthca_cmd_use_polling(struct mthca_dev *dev) up(&dev->cmd.poll_sem); } +struct mthca_mailbox *mthca_alloc_mailbox(struct mthca_dev *dev, + unsigned int gfp_mask) +{ + struct mthca_mailbox *mailbox; + + mailbox = kmalloc(sizeof *mailbox, gfp_mask); + if (!mailbox) + return ERR_PTR(-ENOMEM); + + mailbox->buf = pci_pool_alloc(dev->cmd.pool, gfp_mask, &mailbox->dma); + if (!mailbox->buf) { + kfree(mailbox); + return ERR_PTR(-ENOMEM); + } + + return mailbox; +} + +void mthca_free_mailbox(struct mthca_dev *dev, struct mthca_mailbox *mailbox) +{ + if (!mailbox) + return; + + pci_pool_free(dev->cmd.pool, mailbox->buf, mailbox->dma); + kfree(mailbox); +} + int mthca_SYS_EN(struct mthca_dev *dev, u8 *status) { u64 out; @@ -534,20 +570,20 @@ int mthca_SYS_DIS(struct mthca_dev *dev, u8 *status) static int mthca_map_cmd(struct mthca_dev *dev, u16 op, struct mthca_icm *icm, u64 virt, u8 *status) { - u32 *inbox; - dma_addr_t indma; + struct mthca_mailbox *mailbox; struct mthca_icm_iter iter; + __be64 *pages; int lg; int nent = 0; int i; int err = 0; int ts = 0, tc = 0; - inbox = pci_alloc_consistent(dev->pdev, PAGE_SIZE, &indma); - if (!inbox) - return -ENOMEM; - - memset(inbox, 0, PAGE_SIZE); + mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL); + if (IS_ERR(mailbox)) + return PTR_ERR(mailbox); + memset(mailbox->buf, 0, MTHCA_MAILBOX_SIZE); + pages = mailbox->buf; for (mthca_icm_first(icm, &iter); !mthca_icm_last(&iter); @@ -567,19 +603,17 @@ static int mthca_map_cmd(struct mthca_dev *dev, u16 op, struct mthca_icm *icm, } for (i = 0; i < mthca_icm_size(&iter) / (1 << lg); ++i, ++nent) { if (virt != -1) { - *((__be64 *) (inbox + nent * 4)) = - cpu_to_be64(virt); + pages[nent * 2] = cpu_to_be64(virt); virt += 1 << lg; } - *((__be64 *) (inbox + nent * 4 + 2)) = - cpu_to_be64((mthca_icm_addr(&iter) + - (i << lg)) | (lg - 12)); + pages[nent * 2 + 1] = cpu_to_be64((mthca_icm_addr(&iter) + + (i << lg)) | (lg - 12)); ts += 1 << (lg - 10); ++tc; - if (nent == PAGE_SIZE / 16) { - err = mthca_cmd(dev, indma, nent, 0, op, + if (nent == MTHCA_MAILBOX_SIZE / 16) { + err = mthca_cmd(dev, mailbox->dma, nent, 0, op, CMD_TIME_CLASS_B, status); if (err || *status) goto out; @@ -589,7 +623,7 @@ static int mthca_map_cmd(struct mthca_dev *dev, u16 op, struct mthca_icm *icm, } if (nent) - err = mthca_cmd(dev, indma, nent, 0, op, + err = mthca_cmd(dev, mailbox->dma, nent, 0, op, CMD_TIME_CLASS_B, status); switch (op) { @@ -606,7 +640,7 @@ static int mthca_map_cmd(struct mthca_dev *dev, u16 op, struct mthca_icm *icm, } out: - pci_free_consistent(dev->pdev, PAGE_SIZE, inbox, indma); + mthca_free_mailbox(dev, mailbox); return err; } @@ -627,8 +661,8 @@ int mthca_RUN_FW(struct mthca_dev *dev, u8 *status) int mthca_QUERY_FW(struct mthca_dev *dev, u8 *status) { + struct mthca_mailbox *mailbox; u32 *outbox; - dma_addr_t outdma; int err = 0; u8 lg; @@ -646,12 +680,12 @@ int mthca_QUERY_FW(struct mthca_dev *dev, u8 *status) #define QUERY_FW_EQ_ARM_BASE_OFFSET 0x40 #define QUERY_FW_EQ_SET_CI_BASE_OFFSET 0x48 - outbox = pci_alloc_consistent(dev->pdev, QUERY_FW_OUT_SIZE, &outdma); - if (!outbox) { - return -ENOMEM; - } + mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL); + if (IS_ERR(mailbox)) + return PTR_ERR(mailbox); + outbox = mailbox->buf; - err = mthca_cmd_box(dev, 0, outdma, 0, 0, CMD_QUERY_FW, + err = mthca_cmd_box(dev, 0, mailbox->dma, 0, 0, CMD_QUERY_FW, CMD_TIME_CLASS_A, status); if (err) @@ -702,15 +736,15 @@ int mthca_QUERY_FW(struct mthca_dev *dev, u8 *status) } out: - pci_free_consistent(dev->pdev, QUERY_FW_OUT_SIZE, outbox, outdma); + mthca_free_mailbox(dev, mailbox); return err; } int mthca_ENABLE_LAM(struct mthca_dev *dev, u8 *status) { + struct mthca_mailbox *mailbox; u8 info; u32 *outbox; - dma_addr_t outdma; int err = 0; #define ENABLE_LAM_OUT_SIZE 0x100 @@ -721,11 +755,12 @@ int mthca_ENABLE_LAM(struct mthca_dev *dev, u8 *status) #define ENABLE_LAM_INFO_HIDDEN_FLAG (1 << 4) #define ENABLE_LAM_INFO_ECC_MASK 0x3 - outbox = pci_alloc_consistent(dev->pdev, ENABLE_LAM_OUT_SIZE, &outdma); - if (!outbox) - return -ENOMEM; + mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL); + if (IS_ERR(mailbox)) + return PTR_ERR(mailbox); + outbox = mailbox->buf; - err = mthca_cmd_box(dev, 0, outdma, 0, 0, CMD_ENABLE_LAM, + err = mthca_cmd_box(dev, 0, mailbox->dma, 0, 0, CMD_ENABLE_LAM, CMD_TIME_CLASS_C, status); if (err) @@ -754,7 +789,7 @@ int mthca_ENABLE_LAM(struct mthca_dev *dev, u8 *status) (unsigned long long) dev->ddr_end); out: - pci_free_consistent(dev->pdev, ENABLE_LAM_OUT_SIZE, outbox, outdma); + mthca_free_mailbox(dev, mailbox); return err; } @@ -765,9 +800,9 @@ int mthca_DISABLE_LAM(struct mthca_dev *dev, u8 *status) int mthca_QUERY_DDR(struct mthca_dev *dev, u8 *status) { + struct mthca_mailbox *mailbox; u8 info; u32 *outbox; - dma_addr_t outdma; int err = 0; #define QUERY_DDR_OUT_SIZE 0x100 @@ -778,11 +813,12 @@ int mthca_QUERY_DDR(struct mthca_dev *dev, u8 *status) #define QUERY_DDR_INFO_HIDDEN_FLAG (1 << 4) #define QUERY_DDR_INFO_ECC_MASK 0x3 - outbox = pci_alloc_consistent(dev->pdev, QUERY_DDR_OUT_SIZE, &outdma); - if (!outbox) - return -ENOMEM; + mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL); + if (IS_ERR(mailbox)) + return PTR_ERR(mailbox); + outbox = mailbox->buf; - err = mthca_cmd_box(dev, 0, outdma, 0, 0, CMD_QUERY_DDR, + err = mthca_cmd_box(dev, 0, mailbox->dma, 0, 0, CMD_QUERY_DDR, CMD_TIME_CLASS_A, status); if (err) @@ -808,15 +844,15 @@ int mthca_QUERY_DDR(struct mthca_dev *dev, u8 *status) (unsigned long long) dev->ddr_end); out: - pci_free_consistent(dev->pdev, QUERY_DDR_OUT_SIZE, outbox, outdma); + mthca_free_mailbox(dev, mailbox); return err; } int mthca_QUERY_DEV_LIM(struct mthca_dev *dev, struct mthca_dev_lim *dev_lim, u8 *status) { + struct mthca_mailbox *mailbox; u32 *outbox; - dma_addr_t outdma; u8 field; u16 size; int err; @@ -881,11 +917,12 @@ int mthca_QUERY_DEV_LIM(struct mthca_dev *dev, #define QUERY_DEV_LIM_LAMR_OFFSET 0x9f #define QUERY_DEV_LIM_MAX_ICM_SZ_OFFSET 0xa0 - outbox = pci_alloc_consistent(dev->pdev, QUERY_DEV_LIM_OUT_SIZE, &outdma); - if (!outbox) - return -ENOMEM; + mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL); + if (IS_ERR(mailbox)) + return PTR_ERR(mailbox); + outbox = mailbox->buf; - err = mthca_cmd_box(dev, 0, outdma, 0, 0, CMD_QUERY_DEV_LIM, + err = mthca_cmd_box(dev, 0, mailbox->dma, 0, 0, CMD_QUERY_DEV_LIM, CMD_TIME_CLASS_A, status); if (err) @@ -1041,15 +1078,15 @@ int mthca_QUERY_DEV_LIM(struct mthca_dev *dev, } out: - pci_free_consistent(dev->pdev, QUERY_DEV_LIM_OUT_SIZE, outbox, outdma); + mthca_free_mailbox(dev, mailbox); return err; } int mthca_QUERY_ADAPTER(struct mthca_dev *dev, struct mthca_adapter *adapter, u8 *status) { + struct mthca_mailbox *mailbox; u32 *outbox; - dma_addr_t outdma; int err; #define QUERY_ADAPTER_OUT_SIZE 0x100 @@ -1058,23 +1095,24 @@ int mthca_QUERY_ADAPTER(struct mthca_dev *dev, #define QUERY_ADAPTER_REVISION_ID_OFFSET 0x08 #define QUERY_ADAPTER_INTA_PIN_OFFSET 0x10 - outbox = pci_alloc_consistent(dev->pdev, QUERY_ADAPTER_OUT_SIZE, &outdma); - if (!outbox) - return -ENOMEM; + mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL); + if (IS_ERR(mailbox)) + return PTR_ERR(mailbox); + outbox = mailbox->buf; - err = mthca_cmd_box(dev, 0, outdma, 0, 0, CMD_QUERY_ADAPTER, + err = mthca_cmd_box(dev, 0, mailbox->dma, 0, 0, CMD_QUERY_ADAPTER, CMD_TIME_CLASS_A, status); if (err) goto out; - MTHCA_GET(adapter->vendor_id, outbox, QUERY_ADAPTER_VENDOR_ID_OFFSET); - MTHCA_GET(adapter->device_id, outbox, QUERY_ADAPTER_DEVICE_ID_OFFSET); + MTHCA_GET(adapter->vendor_id, outbox, QUERY_ADAPTER_VENDOR_ID_OFFSET); + MTHCA_GET(adapter->device_id, outbox, QUERY_ADAPTER_DEVICE_ID_OFFSET); MTHCA_GET(adapter->revision_id, outbox, QUERY_ADAPTER_REVISION_ID_OFFSET); - MTHCA_GET(adapter->inta_pin, outbox, QUERY_ADAPTER_INTA_PIN_OFFSET); + MTHCA_GET(adapter->inta_pin, outbox, QUERY_ADAPTER_INTA_PIN_OFFSET); out: - pci_free_consistent(dev->pdev, QUERY_DEV_LIM_OUT_SIZE, outbox, outdma); + mthca_free_mailbox(dev, mailbox); return err; } @@ -1082,8 +1120,8 @@ int mthca_INIT_HCA(struct mthca_dev *dev, struct mthca_init_hca_param *param, u8 *status) { + struct mthca_mailbox *mailbox; u32 *inbox; - dma_addr_t indma; int err; #define INIT_HCA_IN_SIZE 0x200 @@ -1123,9 +1161,10 @@ int mthca_INIT_HCA(struct mthca_dev *dev, #define INIT_HCA_UAR_SCATCH_BASE_OFFSET (INIT_HCA_UAR_OFFSET + 0x10) #define INIT_HCA_UAR_CTX_BASE_OFFSET (INIT_HCA_UAR_OFFSET + 0x18) - inbox = pci_alloc_consistent(dev->pdev, INIT_HCA_IN_SIZE, &indma); - if (!inbox) - return -ENOMEM; + mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL); + if (IS_ERR(mailbox)) + return PTR_ERR(mailbox); + inbox = mailbox->buf; memset(inbox, 0, INIT_HCA_IN_SIZE); @@ -1188,10 +1227,9 @@ int mthca_INIT_HCA(struct mthca_dev *dev, MTHCA_PUT(inbox, param->uarc_base, INIT_HCA_UAR_CTX_BASE_OFFSET); } - err = mthca_cmd(dev, indma, 0, 0, CMD_INIT_HCA, - HZ, status); + err = mthca_cmd(dev, mailbox->dma, 0, 0, CMD_INIT_HCA, HZ, status); - pci_free_consistent(dev->pdev, INIT_HCA_IN_SIZE, inbox, indma); + mthca_free_mailbox(dev, mailbox); return err; } @@ -1199,8 +1237,8 @@ int mthca_INIT_IB(struct mthca_dev *dev, struct mthca_init_ib_param *param, int port, u8 *status) { + struct mthca_mailbox *mailbox; u32 *inbox; - dma_addr_t indma; int err; u32 flags; @@ -1220,9 +1258,10 @@ int mthca_INIT_IB(struct mthca_dev *dev, #define INIT_IB_NODE_GUID_OFFSET 0x18 #define INIT_IB_SI_GUID_OFFSET 0x20 - inbox = pci_alloc_consistent(dev->pdev, INIT_IB_IN_SIZE, &indma); - if (!inbox) - return -ENOMEM; + mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL); + if (IS_ERR(mailbox)) + return PTR_ERR(mailbox); + inbox = mailbox->buf; memset(inbox, 0, INIT_IB_IN_SIZE); @@ -1242,10 +1281,10 @@ int mthca_INIT_IB(struct mthca_dev *dev, MTHCA_PUT(inbox, param->node_guid, INIT_IB_NODE_GUID_OFFSET); MTHCA_PUT(inbox, param->si_guid, INIT_IB_SI_GUID_OFFSET); - err = mthca_cmd(dev, indma, port, 0, CMD_INIT_IB, + err = mthca_cmd(dev, mailbox->dma, port, 0, CMD_INIT_IB, CMD_TIME_CLASS_A, status); - pci_free_consistent(dev->pdev, INIT_HCA_IN_SIZE, inbox, indma); + mthca_free_mailbox(dev, mailbox); return err; } @@ -1262,8 +1301,8 @@ int mthca_CLOSE_HCA(struct mthca_dev *dev, int panic, u8 *status) int mthca_SET_IB(struct mthca_dev *dev, struct mthca_set_ib_param *param, int port, u8 *status) { + struct mthca_mailbox *mailbox; u32 *inbox; - dma_addr_t indma; int err; u32 flags = 0; @@ -1274,9 +1313,10 @@ int mthca_SET_IB(struct mthca_dev *dev, struct mthca_set_ib_param *param, #define SET_IB_CAP_MASK_OFFSET 0x04 #define SET_IB_SI_GUID_OFFSET 0x08 - inbox = pci_alloc_consistent(dev->pdev, SET_IB_IN_SIZE, &indma); - if (!inbox) - return -ENOMEM; + mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL); + if (IS_ERR(mailbox)) + return PTR_ERR(mailbox); + inbox = mailbox->buf; memset(inbox, 0, SET_IB_IN_SIZE); @@ -1287,10 +1327,10 @@ int mthca_SET_IB(struct mthca_dev *dev, struct mthca_set_ib_param *param, MTHCA_PUT(inbox, param->cap_mask, SET_IB_CAP_MASK_OFFSET); MTHCA_PUT(inbox, param->si_guid, SET_IB_SI_GUID_OFFSET); - err = mthca_cmd(dev, indma, port, 0, CMD_SET_IB, + err = mthca_cmd(dev, mailbox->dma, port, 0, CMD_SET_IB, CMD_TIME_CLASS_B, status); - pci_free_consistent(dev->pdev, INIT_HCA_IN_SIZE, inbox, indma); + mthca_free_mailbox(dev, mailbox); return err; } @@ -1301,20 +1341,22 @@ int mthca_MAP_ICM(struct mthca_dev *dev, struct mthca_icm *icm, u64 virt, u8 *st int mthca_MAP_ICM_page(struct mthca_dev *dev, u64 dma_addr, u64 virt, u8 *status) { + struct mthca_mailbox *mailbox; u64 *inbox; - dma_addr_t indma; int err; - inbox = pci_alloc_consistent(dev->pdev, 16, &indma); - if (!inbox) - return -ENOMEM; + mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL); + if (IS_ERR(mailbox)) + return PTR_ERR(mailbox); + inbox = mailbox->buf; inbox[0] = cpu_to_be64(virt); inbox[1] = cpu_to_be64(dma_addr); - err = mthca_cmd(dev, indma, 1, 0, CMD_MAP_ICM, CMD_TIME_CLASS_B, status); + err = mthca_cmd(dev, mailbox->dma, 1, 0, CMD_MAP_ICM, + CMD_TIME_CLASS_B, status); - pci_free_consistent(dev->pdev, 16, inbox, indma); + mthca_free_mailbox(dev, mailbox); if (!err) mthca_dbg(dev, "Mapped page at %llx to %llx for ICM.\n", @@ -1359,69 +1401,26 @@ int mthca_SET_ICM_SIZE(struct mthca_dev *dev, u64 icm_size, u64 *aux_pages, return 0; } -int mthca_SW2HW_MPT(struct mthca_dev *dev, void *mpt_entry, +int mthca_SW2HW_MPT(struct mthca_dev *dev, struct mthca_mailbox *mailbox, int mpt_index, u8 *status) { - dma_addr_t indma; - int err; - - indma = pci_map_single(dev->pdev, mpt_entry, - MTHCA_MPT_ENTRY_SIZE, - PCI_DMA_TODEVICE); - if (pci_dma_mapping_error(indma)) - return -ENOMEM; - - err = mthca_cmd(dev, indma, mpt_index, 0, CMD_SW2HW_MPT, - CMD_TIME_CLASS_B, status); - - pci_unmap_single(dev->pdev, indma, - MTHCA_MPT_ENTRY_SIZE, PCI_DMA_TODEVICE); - return err; + return mthca_cmd(dev, mailbox->dma, mpt_index, 0, CMD_SW2HW_MPT, + CMD_TIME_CLASS_B, status); } -int mthca_HW2SW_MPT(struct mthca_dev *dev, void *mpt_entry, +int mthca_HW2SW_MPT(struct mthca_dev *dev, struct mthca_mailbox *mailbox, int mpt_index, u8 *status) { - dma_addr_t outdma = 0; - int err; - - if (mpt_entry) { - outdma = pci_map_single(dev->pdev, mpt_entry, - MTHCA_MPT_ENTRY_SIZE, - PCI_DMA_FROMDEVICE); - if (pci_dma_mapping_error(outdma)) - return -ENOMEM; - } - - err = mthca_cmd_box(dev, 0, outdma, mpt_index, !mpt_entry, - CMD_HW2SW_MPT, - CMD_TIME_CLASS_B, status); - - if (mpt_entry) - pci_unmap_single(dev->pdev, outdma, - MTHCA_MPT_ENTRY_SIZE, - PCI_DMA_FROMDEVICE); - return err; + return mthca_cmd_box(dev, 0, mailbox ? mailbox->dma : 0, mpt_index, + !mailbox, CMD_HW2SW_MPT, + CMD_TIME_CLASS_B, status); } -int mthca_WRITE_MTT(struct mthca_dev *dev, u64 *mtt_entry, +int mthca_WRITE_MTT(struct mthca_dev *dev, struct mthca_mailbox *mailbox, int num_mtt, u8 *status) { - dma_addr_t indma; - int err; - - indma = pci_map_single(dev->pdev, mtt_entry, - (num_mtt + 2) * 8, - PCI_DMA_TODEVICE); - if (pci_dma_mapping_error(indma)) - return -ENOMEM; - - err = mthca_cmd(dev, indma, num_mtt, 0, CMD_WRITE_MTT, - CMD_TIME_CLASS_B, status); - - pci_unmap_single(dev->pdev, indma, - (num_mtt + 2) * 8, PCI_DMA_TODEVICE); - return err; + return mthca_cmd(dev, mailbox->dma, num_mtt, 0, CMD_WRITE_MTT, + CMD_TIME_CLASS_B, status); } int mthca_SYNC_TPT(struct mthca_dev *dev, u8 *status) @@ -1439,92 +1438,38 @@ int mthca_MAP_EQ(struct mthca_dev *dev, u64 event_mask, int unmap, 0, CMD_MAP_EQ, CMD_TIME_CLASS_B, status); } -int mthca_SW2HW_EQ(struct mthca_dev *dev, void *eq_context, +int mthca_SW2HW_EQ(struct mthca_dev *dev, struct mthca_mailbox *mailbox, int eq_num, u8 *status) { - dma_addr_t indma; - int err; - - indma = pci_map_single(dev->pdev, eq_context, - MTHCA_EQ_CONTEXT_SIZE, - PCI_DMA_TODEVICE); - if (pci_dma_mapping_error(indma)) - return -ENOMEM; - - err = mthca_cmd(dev, indma, eq_num, 0, CMD_SW2HW_EQ, - CMD_TIME_CLASS_A, status); - - pci_unmap_single(dev->pdev, indma, - MTHCA_EQ_CONTEXT_SIZE, PCI_DMA_TODEVICE); - return err; + return mthca_cmd(dev, mailbox->dma, eq_num, 0, CMD_SW2HW_EQ, + CMD_TIME_CLASS_A, status); } -int mthca_HW2SW_EQ(struct mthca_dev *dev, void *eq_context, +int mthca_HW2SW_EQ(struct mthca_dev *dev, struct mthca_mailbox *mailbox, int eq_num, u8 *status) { - dma_addr_t outdma = 0; - int err; - - outdma = pci_map_single(dev->pdev, eq_context, - MTHCA_EQ_CONTEXT_SIZE, - PCI_DMA_FROMDEVICE); - if (pci_dma_mapping_error(outdma)) - return -ENOMEM; - - err = mthca_cmd_box(dev, 0, outdma, eq_num, 0, - CMD_HW2SW_EQ, - CMD_TIME_CLASS_A, status); - - pci_unmap_single(dev->pdev, outdma, - MTHCA_EQ_CONTEXT_SIZE, - PCI_DMA_FROMDEVICE); - return err; + return mthca_cmd_box(dev, 0, mailbox->dma, eq_num, 0, + CMD_HW2SW_EQ, + CMD_TIME_CLASS_A, status); } -int mthca_SW2HW_CQ(struct mthca_dev *dev, void *cq_context, +int mthca_SW2HW_CQ(struct mthca_dev *dev, struct mthca_mailbox *mailbox, int cq_num, u8 *status) { - dma_addr_t indma; - int err; - - indma = pci_map_single(dev->pdev, cq_context, - MTHCA_CQ_CONTEXT_SIZE, - PCI_DMA_TODEVICE); - if (pci_dma_mapping_error(indma)) - return -ENOMEM; - - err = mthca_cmd(dev, indma, cq_num, 0, CMD_SW2HW_CQ, + return mthca_cmd(dev, mailbox->dma, cq_num, 0, CMD_SW2HW_CQ, CMD_TIME_CLASS_A, status); - - pci_unmap_single(dev->pdev, indma, - MTHCA_CQ_CONTEXT_SIZE, PCI_DMA_TODEVICE); - return err; } -int mthca_HW2SW_CQ(struct mthca_dev *dev, void *cq_context, +int mthca_HW2SW_CQ(struct mthca_dev *dev, struct mthca_mailbox *mailbox, int cq_num, u8 *status) { - dma_addr_t outdma = 0; - int err; - - outdma = pci_map_single(dev->pdev, cq_context, - MTHCA_CQ_CONTEXT_SIZE, - PCI_DMA_FROMDEVICE); - if (pci_dma_mapping_error(outdma)) - return -ENOMEM; - - err = mthca_cmd_box(dev, 0, outdma, cq_num, 0, - CMD_HW2SW_CQ, - CMD_TIME_CLASS_A, status); - - pci_unmap_single(dev->pdev, outdma, - MTHCA_CQ_CONTEXT_SIZE, - PCI_DMA_FROMDEVICE); - return err; + return mthca_cmd_box(dev, 0, mailbox->dma, cq_num, 0, + CMD_HW2SW_CQ, + CMD_TIME_CLASS_A, status); } int mthca_MODIFY_QP(struct mthca_dev *dev, int trans, u32 num, - int is_ee, void *qp_context, u32 optmask, + int is_ee, struct mthca_mailbox *mailbox, u32 optmask, u8 *status) { static const u16 op[] = { @@ -1541,36 +1486,34 @@ int mthca_MODIFY_QP(struct mthca_dev *dev, int trans, u32 num, [MTHCA_TRANS_ANY2RST] = CMD_ERR2RST_QPEE }; u8 op_mod = 0; - - dma_addr_t indma; + int my_mailbox = 0; int err; if (trans < 0 || trans >= ARRAY_SIZE(op)) return -EINVAL; if (trans == MTHCA_TRANS_ANY2RST) { - indma = 0; op_mod = 3; /* don't write outbox, any->reset */ /* For debugging */ - qp_context = pci_alloc_consistent(dev->pdev, MTHCA_QP_CONTEXT_SIZE, - &indma); - op_mod = 2; /* write outbox, any->reset */ + if (!mailbox) { + mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL); + if (!IS_ERR(mailbox)) { + my_mailbox = 1; + op_mod = 2; /* write outbox, any->reset */ + } else + mailbox = NULL; + } } else { - indma = pci_map_single(dev->pdev, qp_context, - MTHCA_QP_CONTEXT_SIZE, - PCI_DMA_TODEVICE); - if (pci_dma_mapping_error(indma)) - return -ENOMEM; - if (0) { int i; mthca_dbg(dev, "Dumping QP context:\n"); - printk(" opt param mask: %08x\n", be32_to_cpup(qp_context)); + printk(" opt param mask: %08x\n", be32_to_cpup(mailbox->buf)); for (i = 0; i < 0x100 / 4; ++i) { if (i % 8 == 0) printk(" [%02x] ", i * 4); - printk(" %08x", be32_to_cpu(((u32 *) qp_context)[i + 2])); + printk(" %08x", + be32_to_cpu(((u32 *) mailbox->buf)[i + 2])); if ((i + 1) % 8 == 0) printk("\n"); } @@ -1578,55 +1521,39 @@ int mthca_MODIFY_QP(struct mthca_dev *dev, int trans, u32 num, } if (trans == MTHCA_TRANS_ANY2RST) { - err = mthca_cmd_box(dev, 0, indma, (!!is_ee << 24) | num, - op_mod, op[trans], CMD_TIME_CLASS_C, status); + err = mthca_cmd_box(dev, 0, mailbox ? mailbox->dma : 0, + (!!is_ee << 24) | num, op_mod, + op[trans], CMD_TIME_CLASS_C, status); - if (0) { + if (0 && mailbox) { int i; mthca_dbg(dev, "Dumping QP context:\n"); - printk(" %08x\n", be32_to_cpup(qp_context)); + printk(" %08x\n", be32_to_cpup(mailbox->buf)); for (i = 0; i < 0x100 / 4; ++i) { if (i % 8 == 0) printk("[%02x] ", i * 4); - printk(" %08x", be32_to_cpu(((u32 *) qp_context)[i + 2])); + printk(" %08x", + be32_to_cpu(((u32 *) mailbox->buf)[i + 2])); if ((i + 1) % 8 == 0) printk("\n"); } } } else - err = mthca_cmd(dev, indma, (!!is_ee << 24) | num, + err = mthca_cmd(dev, mailbox->dma, (!!is_ee << 24) | num, op_mod, op[trans], CMD_TIME_CLASS_C, status); - if (trans != MTHCA_TRANS_ANY2RST) - pci_unmap_single(dev->pdev, indma, - MTHCA_QP_CONTEXT_SIZE, PCI_DMA_TODEVICE); - else - pci_free_consistent(dev->pdev, MTHCA_QP_CONTEXT_SIZE, - qp_context, indma); + if (my_mailbox) + mthca_free_mailbox(dev, mailbox); + return err; } int mthca_QUERY_QP(struct mthca_dev *dev, u32 num, int is_ee, - void *qp_context, u8 *status) + struct mthca_mailbox *mailbox, u8 *status) { - dma_addr_t outdma = 0; - int err; - - outdma = pci_map_single(dev->pdev, qp_context, - MTHCA_QP_CONTEXT_SIZE, - PCI_DMA_FROMDEVICE); - if (pci_dma_mapping_error(outdma)) - return -ENOMEM; - - err = mthca_cmd_box(dev, 0, outdma, (!!is_ee << 24) | num, 0, - CMD_QUERY_QPEE, - CMD_TIME_CLASS_A, status); - - pci_unmap_single(dev->pdev, outdma, - MTHCA_QP_CONTEXT_SIZE, - PCI_DMA_FROMDEVICE); - return err; + return mthca_cmd_box(dev, 0, mailbox->dma, (!!is_ee << 24) | num, 0, + CMD_QUERY_QPEE, CMD_TIME_CLASS_A, status); } int mthca_CONF_SPECIAL_QP(struct mthca_dev *dev, int type, u32 qpn, @@ -1656,11 +1583,11 @@ int mthca_CONF_SPECIAL_QP(struct mthca_dev *dev, int type, u32 qpn, } int mthca_MAD_IFC(struct mthca_dev *dev, int ignore_mkey, int ignore_bkey, - int port, struct ib_wc* in_wc, struct ib_grh* in_grh, + int port, struct ib_wc *in_wc, struct ib_grh *in_grh, void *in_mad, void *response_mad, u8 *status) { - void *box; - dma_addr_t dma; + struct mthca_mailbox *inmailbox, *outmailbox; + void *inbox; int err; u32 in_modifier = port; u8 op_modifier = 0; @@ -1674,11 +1601,18 @@ int mthca_MAD_IFC(struct mthca_dev *dev, int ignore_mkey, int ignore_bkey, #define MAD_IFC_PKEY_OFFSET 0x10e #define MAD_IFC_GRH_OFFSET 0x140 - box = pci_alloc_consistent(dev->pdev, MAD_IFC_BOX_SIZE, &dma); - if (!box) - return -ENOMEM; + inmailbox = mthca_alloc_mailbox(dev, GFP_KERNEL); + if (IS_ERR(inmailbox)) + return PTR_ERR(inmailbox); + inbox = inmailbox->buf; + + outmailbox = mthca_alloc_mailbox(dev, GFP_KERNEL); + if (IS_ERR(outmailbox)) { + mthca_free_mailbox(dev, inmailbox); + return PTR_ERR(outmailbox); + } - memcpy(box, in_mad, 256); + memcpy(inbox, in_mad, 256); /* * Key check traps can't be generated unless we have in_wc to @@ -1692,97 +1626,65 @@ int mthca_MAD_IFC(struct mthca_dev *dev, int ignore_mkey, int ignore_bkey, if (in_wc) { u8 val; - memset(box + 256, 0, 256); + memset(inbox + 256, 0, 256); - MTHCA_PUT(box, in_wc->qp_num, MAD_IFC_MY_QPN_OFFSET); - MTHCA_PUT(box, in_wc->src_qp, MAD_IFC_RQPN_OFFSET); + MTHCA_PUT(inbox, in_wc->qp_num, MAD_IFC_MY_QPN_OFFSET); + MTHCA_PUT(inbox, in_wc->src_qp, MAD_IFC_RQPN_OFFSET); val = in_wc->sl << 4; - MTHCA_PUT(box, val, MAD_IFC_SL_OFFSET); + MTHCA_PUT(inbox, val, MAD_IFC_SL_OFFSET); val = in_wc->dlid_path_bits | (in_wc->wc_flags & IB_WC_GRH ? 0x80 : 0); - MTHCA_PUT(box, val, MAD_IFC_GRH_OFFSET); + MTHCA_PUT(inbox, val, MAD_IFC_GRH_OFFSET); - MTHCA_PUT(box, in_wc->slid, MAD_IFC_RLID_OFFSET); - MTHCA_PUT(box, in_wc->pkey_index, MAD_IFC_PKEY_OFFSET); + MTHCA_PUT(inbox, in_wc->slid, MAD_IFC_RLID_OFFSET); + MTHCA_PUT(inbox, in_wc->pkey_index, MAD_IFC_PKEY_OFFSET); if (in_grh) - memcpy((u8 *) box + MAD_IFC_GRH_OFFSET, in_grh, 40); + memcpy(inbox + MAD_IFC_GRH_OFFSET, in_grh, 40); op_modifier |= 0x10; in_modifier |= in_wc->slid << 16; } - err = mthca_cmd_box(dev, dma, dma + 512, in_modifier, op_modifier, + err = mthca_cmd_box(dev, inmailbox->dma, outmailbox->dma, + in_modifier, op_modifier, CMD_MAD_IFC, CMD_TIME_CLASS_C, status); if (!err && !*status) - memcpy(response_mad, box + 512, 256); + memcpy(response_mad, outmailbox->buf, 256); - pci_free_consistent(dev->pdev, MAD_IFC_BOX_SIZE, box, dma); + mthca_free_mailbox(dev, inmailbox); + mthca_free_mailbox(dev, outmailbox); return err; } -int mthca_READ_MGM(struct mthca_dev *dev, int index, void *mgm, - u8 *status) +int mthca_READ_MGM(struct mthca_dev *dev, int index, + struct mthca_mailbox *mailbox, u8 *status) { - dma_addr_t outdma = 0; - int err; - - outdma = pci_map_single(dev->pdev, mgm, - MTHCA_MGM_ENTRY_SIZE, - PCI_DMA_FROMDEVICE); - if (pci_dma_mapping_error(outdma)) - return -ENOMEM; - - err = mthca_cmd_box(dev, 0, outdma, index, 0, - CMD_READ_MGM, - CMD_TIME_CLASS_A, status); - - pci_unmap_single(dev->pdev, outdma, - MTHCA_MGM_ENTRY_SIZE, - PCI_DMA_FROMDEVICE); - return err; + return mthca_cmd_box(dev, 0, mailbox->dma, index, 0, + CMD_READ_MGM, CMD_TIME_CLASS_A, status); } -int mthca_WRITE_MGM(struct mthca_dev *dev, int index, void *mgm, - u8 *status) +int mthca_WRITE_MGM(struct mthca_dev *dev, int index, + struct mthca_mailbox *mailbox, u8 *status) { - dma_addr_t indma; - int err; - - indma = pci_map_single(dev->pdev, mgm, - MTHCA_MGM_ENTRY_SIZE, - PCI_DMA_TODEVICE); - if (pci_dma_mapping_error(indma)) - return -ENOMEM; - - err = mthca_cmd(dev, indma, index, 0, CMD_WRITE_MGM, - CMD_TIME_CLASS_A, status); - - pci_unmap_single(dev->pdev, indma, - MTHCA_MGM_ENTRY_SIZE, PCI_DMA_TODEVICE); - return err; + return mthca_cmd(dev, mailbox->dma, index, 0, CMD_WRITE_MGM, + CMD_TIME_CLASS_A, status); } -int mthca_MGID_HASH(struct mthca_dev *dev, void *gid, u16 *hash, - u8 *status) +int mthca_MGID_HASH(struct mthca_dev *dev, struct mthca_mailbox *mailbox, + u16 *hash, u8 *status) { - dma_addr_t indma; u64 imm; int err; - indma = pci_map_single(dev->pdev, gid, 16, PCI_DMA_TODEVICE); - if (pci_dma_mapping_error(indma)) - return -ENOMEM; - - err = mthca_cmd_imm(dev, indma, &imm, 0, 0, CMD_MGID_HASH, + err = mthca_cmd_imm(dev, mailbox->dma, &imm, 0, 0, CMD_MGID_HASH, CMD_TIME_CLASS_A, status); - *hash = imm; - pci_unmap_single(dev->pdev, indma, 16, PCI_DMA_TODEVICE); + *hash = imm; return err; } |