diff options
Diffstat (limited to 'drivers/staging/benet/be_init.c')
| -rw-r--r-- | drivers/staging/benet/be_init.c | 1382 |
1 files changed, 0 insertions, 1382 deletions
diff --git a/drivers/staging/benet/be_init.c b/drivers/staging/benet/be_init.c deleted file mode 100644 index 12a026c3f9e1..000000000000 --- a/drivers/staging/benet/be_init.c +++ /dev/null @@ -1,1382 +0,0 @@ -/* - * Copyright (C) 2005 - 2008 ServerEngines - * All rights reserved. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License version 2 - * as published by the Free Software Foundation. The full GNU General - * Public License is included in this distribution in the file called COPYING. - * - * Contact Information: - * linux-drivers@serverengines.com - * - * ServerEngines - * 209 N. Fair Oaks Ave - * Sunnyvale, CA 94085 - */ -#include <linux/etherdevice.h> -#include "benet.h" - -#define DRVR_VERSION "1.0.728" - -static const struct pci_device_id be_device_id_table[] = { - {PCI_DEVICE(0x19a2, 0x0201)}, - {0} -}; - -MODULE_DEVICE_TABLE(pci, be_device_id_table); - -MODULE_VERSION(DRVR_VERSION); - -#define DRV_DESCRIPTION "ServerEngines BladeEngine Network Driver Version " - -MODULE_DESCRIPTION(DRV_DESCRIPTION DRVR_VERSION); -MODULE_AUTHOR("ServerEngines"); -MODULE_LICENSE("GPL"); - -static unsigned int msix = 1; -module_param(msix, uint, S_IRUGO); -MODULE_PARM_DESC(msix, "Use MSI-x interrupts"); - -static unsigned int rxbuf_size = 2048; /* Default RX frag size */ -module_param(rxbuf_size, uint, S_IRUGO); -MODULE_PARM_DESC(rxbuf_size, "Size of buffers to hold Rx data"); - -const char be_drvr_ver[] = DRVR_VERSION; -char be_fw_ver[32]; /* F/W version filled in by be_probe */ -char be_driver_name[] = "benet"; - -/* - * Number of entries in each queue. - */ -#define EVENT_Q_LEN 1024 -#define ETH_TXQ_LEN 2048 -#define ETH_TXCQ_LEN 1024 -#define ETH_RXQ_LEN 1024 /* Does not support any other value */ -#define ETH_UC_RXCQ_LEN 1024 -#define ETH_BC_RXCQ_LEN 256 -#define MCC_Q_LEN 64 /* total size not to exceed 8 pages */ -#define MCC_CQ_LEN 256 - -/* Bit mask describing events of interest to be traced */ -unsigned int trace_level; - -static int -init_pci_be_function(struct be_adapter *adapter, struct pci_dev *pdev) -{ - u64 pa; - - /* CSR */ - pa = pci_resource_start(pdev, 2); - adapter->csr_va = ioremap_nocache(pa, pci_resource_len(pdev, 2)); - if (adapter->csr_va == NULL) - return -ENOMEM; - - /* Door Bell */ - pa = pci_resource_start(pdev, 4); - adapter->db_va = ioremap_nocache(pa, (128 * 1024)); - if (adapter->db_va == NULL) { - iounmap(adapter->csr_va); - return -ENOMEM; - } - - /* PCI */ - pa = pci_resource_start(pdev, 1); - adapter->pci_va = ioremap_nocache(pa, pci_resource_len(pdev, 1)); - if (adapter->pci_va == NULL) { - iounmap(adapter->csr_va); - iounmap(adapter->db_va); - return -ENOMEM; - } - return 0; -} - -/* - This function enables the interrupt corresponding to the Event - queue ID for the given NetObject -*/ -void be_enable_eq_intr(struct be_net_object *pnob) -{ - struct CQ_DB_AMAP cqdb; - cqdb.dw[0] = 0; - AMAP_SET_BITS_PTR(CQ_DB, event, &cqdb, 1); - AMAP_SET_BITS_PTR(CQ_DB, rearm, &cqdb, 1); - AMAP_SET_BITS_PTR(CQ_DB, num_popped, &cqdb, 0); - AMAP_SET_BITS_PTR(CQ_DB, qid, &cqdb, pnob->event_q_id); - PD_WRITE(&pnob->fn_obj, cq_db, cqdb.dw[0]); -} - -/* - This function disables the interrupt corresponding to the Event - queue ID for the given NetObject -*/ -void be_disable_eq_intr(struct be_net_object *pnob) -{ - struct CQ_DB_AMAP cqdb; - cqdb.dw[0] = 0; - AMAP_SET_BITS_PTR(CQ_DB, event, &cqdb, 1); - AMAP_SET_BITS_PTR(CQ_DB, rearm, &cqdb, 0); - AMAP_SET_BITS_PTR(CQ_DB, num_popped, &cqdb, 0); - AMAP_SET_BITS_PTR(CQ_DB, qid, &cqdb, pnob->event_q_id); - PD_WRITE(&pnob->fn_obj, cq_db, cqdb.dw[0]); -} - -/* - This function enables the interrupt from the network function - of the BladeEngine. Use the function be_disable_eq_intr() - to enable the interrupt from the event queue of only one specific - NetObject -*/ -void be_enable_intr(struct be_net_object *pnob) -{ - struct PCICFG_HOST_TIMER_INT_CTRL_CSR_AMAP ctrl; - u32 host_intr; - - ctrl.dw[0] = PCICFG1_READ(&pnob->fn_obj, host_timer_int_ctrl); - host_intr = AMAP_GET_BITS_PTR(PCICFG_HOST_TIMER_INT_CTRL_CSR, - hostintr, ctrl.dw); - if (!host_intr) { - AMAP_SET_BITS_PTR(PCICFG_HOST_TIMER_INT_CTRL_CSR, - hostintr, ctrl.dw, 1); - PCICFG1_WRITE(&pnob->fn_obj, host_timer_int_ctrl, - ctrl.dw[0]); - } -} - -/* - This function disables the interrupt from the network function of - the BladeEngine. Use the function be_disable_eq_intr() to - disable the interrupt from the event queue of only one specific NetObject -*/ -void be_disable_intr(struct be_net_object *pnob) -{ - - struct PCICFG_HOST_TIMER_INT_CTRL_CSR_AMAP ctrl; - u32 host_intr; - ctrl.dw[0] = PCICFG1_READ(&pnob->fn_obj, host_timer_int_ctrl); - host_intr = AMAP_GET_BITS_PTR(PCICFG_HOST_TIMER_INT_CTRL_CSR, - hostintr, ctrl.dw); - if (host_intr) { - AMAP_SET_BITS_PTR(PCICFG_HOST_TIMER_INT_CTRL_CSR, hostintr, - ctrl.dw, 0); - PCICFG1_WRITE(&pnob->fn_obj, host_timer_int_ctrl, - ctrl.dw[0]); - } -} - -static int be_enable_msix(struct be_adapter *adapter) -{ - int i, ret; - - if (!msix) - return -1; - - for (i = 0; i < BE_MAX_REQ_MSIX_VECTORS; i++) - adapter->msix_entries[i].entry = i; - - ret = pci_enable_msix(adapter->pdev, adapter->msix_entries, - BE_MAX_REQ_MSIX_VECTORS); - - if (ret == 0) - adapter->msix_enabled = 1; - return ret; -} - -static int be_register_isr(struct be_adapter *adapter, - struct be_net_object *pnob) -{ - struct net_device *netdev = pnob->netdev; - int intx = 0, r; - - netdev->irq = adapter->pdev->irq; - r = be_enable_msix(adapter); - - if (r == 0) { - r = request_irq(adapter->msix_entries[0].vector, - be_int, IRQF_SHARED, netdev->name, netdev); - if (r) { - printk(KERN_WARNING - "MSIX Request IRQ failed - Errno %d\n", r); - intx = 1; - pci_disable_msix(adapter->pdev); - adapter->msix_enabled = 0; - } - } else { - intx = 1; - } - - if (intx) { - r = request_irq(netdev->irq, be_int, IRQF_SHARED, - netdev->name, netdev); - if (r) { - printk(KERN_WARNING - "INTx Request IRQ failed - Errno %d\n", r); - return -1; - } - } - adapter->isr_registered = 1; - return 0; -} - -static void be_unregister_isr(struct be_adapter *adapter) -{ - struct net_device *netdev = adapter->netdevp; - if (adapter->isr_registered) { - if (adapter->msix_enabled) { - free_irq(adapter->msix_entries[0].vector, netdev); - pci_disable_msix(adapter->pdev); - adapter->msix_enabled = 0; - } else { - free_irq(netdev->irq, netdev); - } - adapter->isr_registered = 0; - } -} - -/* - This function processes the Flush Completions that are issued by the - ARM F/W, when a Recv Ring is destroyed. A flush completion is - identified when a Rx COmpl descriptor has the tcpcksum and udpcksum - set and the pktsize is 32. These completions are received on the - Rx Completion Queue. -*/ -static u32 be_process_rx_flush_cmpl(struct be_net_object *pnob) -{ - struct ETH_RX_COMPL_AMAP *rxcp; - unsigned int i = 0; - while ((rxcp = be_get_rx_cmpl(pnob)) != NULL) { - be_notify_cmpl(pnob, 1, pnob->rx_cq_id, 1); - i++; - } - return i; -} - -static void be_tx_q_clean(struct be_net_object *pnob) -{ - while (atomic_read(&pnob->tx_q_used)) - process_one_tx_compl(pnob, tx_compl_lastwrb_idx_get(pnob)); -} - -static void be_rx_q_clean(struct be_net_object *pnob) -{ - if (pnob->rx_ctxt) { - int i; - struct be_rx_page_info *rx_page_info; - for (i = 0; i < pnob->rx_q_len; i++) { - rx_page_info = &(pnob->rx_page_info[i]); - if (!pnob->rx_pg_shared || rx_page_info->page_offset) { - pci_unmap_page(pnob->adapter->pdev, - pci_unmap_addr(rx_page_info, bus), - pnob->rx_buf_size, - PCI_DMA_FROMDEVICE); - } - if (rx_page_info->page) - put_page(rx_page_info->page); - memset(rx_page_info, 0, sizeof(struct be_rx_page_info)); - } - pnob->rx_pg_info_hd = 0; - } -} - -static void be_destroy_netobj(struct be_net_object *pnob) -{ - int status; - - if (pnob->tx_q_created) { - status = be_eth_sq_destroy(&pnob->tx_q_obj); - pnob->tx_q_created = 0; - } - - if (pnob->rx_q_created) { - status = be_eth_rq_destroy(&pnob->rx_q_obj); - if (status != 0) { - status = be_eth_rq_destroy_options(&pnob->rx_q_obj, 0, - NULL, NULL); - BUG_ON(status); - } - pnob->rx_q_created = 0; - } - - be_process_rx_flush_cmpl(pnob); - - if (pnob->tx_cq_created) { - status = be_cq_destroy(&pnob->tx_cq_obj); - pnob->tx_cq_created = 0; - } - - if (pnob->rx_cq_created) { - status = be_cq_destroy(&pnob->rx_cq_obj); - pnob->rx_cq_created = 0; - } - - if (pnob->mcc_q_created) { - status = be_mcc_ring_destroy(&pnob->mcc_q_obj); - pnob->mcc_q_created = 0; - } - if (pnob->mcc_cq_created) { - status = be_cq_destroy(&pnob->mcc_cq_obj); - pnob->mcc_cq_created = 0; - } - - if (pnob->event_q_created) { - status = be_eq_destroy(&pnob->event_q_obj); - pnob->event_q_created = 0; - } - be_function_cleanup(&pnob->fn_obj); -} - -/* - * free all resources associated with a pnob - * Called at the time of module cleanup as well a any error during - * module init. Some resources may be partially allocated in a NetObj. - */ -static void netobject_cleanup(struct be_adapter *adapter, - struct be_net_object *pnob) -{ - struct net_device *netdev = adapter->netdevp; - - if (netif_running(netdev)) { - netif_stop_queue(netdev); - be_wait_nic_tx_cmplx_cmpl(pnob); - be_disable_eq_intr(pnob); - } - - be_unregister_isr(adapter); - - if (adapter->tasklet_started) { - tasklet_kill(&(adapter->sts_handler)); - adapter->tasklet_started = 0; - } - if (pnob->fn_obj_created) - be_disable_intr(pnob); - - if (adapter->dev_state != BE_DEV_STATE_NONE) - unregister_netdev(netdev); - - if (pnob->fn_obj_created) - be_destroy_netobj(pnob); - - adapter->net_obj = NULL; - adapter->netdevp = NULL; - - be_rx_q_clean(pnob); - if (pnob->rx_ctxt) { - kfree(pnob->rx_page_info); - kfree(pnob->rx_ctxt); - } - - be_tx_q_clean(pnob); - kfree(pnob->tx_ctxt); - - if (pnob->mcc_q) - pci_free_consistent(adapter->pdev, pnob->mcc_q_size, - pnob->mcc_q, pnob->mcc_q_bus); - - if (pnob->mcc_wrb_ctxt) - free_pages((unsigned long)pnob->mcc_wrb_ctxt, - get_order(pnob->mcc_wrb_ctxt_size)); - - if (pnob->mcc_cq) - pci_free_consistent(adapter->pdev, pnob->mcc_cq_size, - pnob->mcc_cq, pnob->mcc_cq_bus); - - if (pnob->event_q) - pci_free_consistent(adapter->pdev, pnob->event_q_size, - pnob->event_q, pnob->event_q_bus); - - if (pnob->tx_cq) - pci_free_consistent(adapter->pdev, pnob->tx_cq_size, - pnob->tx_cq, pnob->tx_cq_bus); - - if (pnob->tx_q) - pci_free_consistent(adapter->pdev, pnob->tx_q_size, - pnob->tx_q, pnob->tx_q_bus); - - if (pnob->rx_q) - pci_free_consistent(adapter->pdev, pnob->rx_q_size, - pnob->rx_q, pnob->rx_q_bus); - - if (pnob->rx_cq) - pci_free_consistent(adapter->pdev, pnob->rx_cq_size, - pnob->rx_cq, pnob->rx_cq_bus); - - - if (pnob->mb_ptr) - pci_free_consistent(adapter->pdev, pnob->mb_size, pnob->mb_ptr, - pnob->mb_bus); - - free_netdev(netdev); -} - - -static int be_nob_ring_alloc(struct be_adapter *adapter, - struct be_net_object *pnob) -{ - u32 size; - - /* Mail box rd; mailbox pointer needs to be 16 byte aligned */ - pnob->mb_size = sizeof(struct MCC_MAILBOX_AMAP) + 16; - pnob->mb_ptr = pci_alloc_consistent(adapter->pdev, pnob->mb_size, - &pnob->mb_bus); - if (!pnob->mb_bus) - return -1; - memset(pnob->mb_ptr, 0, pnob->mb_size); - pnob->mb_rd.va = PTR_ALIGN(pnob->mb_ptr, 16); - pnob->mb_rd.pa = PTR_ALIGN(pnob->mb_bus, 16); - pnob->mb_rd.length = sizeof(struct MCC_MAILBOX_AMAP); - /* - * Event queue - */ - pnob->event_q_len = EVENT_Q_LEN; - pnob->event_q_size = pnob->event_q_len * sizeof(struct EQ_ENTRY_AMAP); - pnob->event_q = pci_alloc_consistent(adapter->pdev, pnob->event_q_size, - &pnob->event_q_bus); - if (!pnob->event_q_bus) - return -1; - memset(pnob->event_q, 0, pnob->event_q_size); - /* - * Eth TX queue - */ - pnob->tx_q_len = ETH_TXQ_LEN; - pnob->tx_q_port = 0; - pnob->tx_q_size = pnob->tx_q_len * sizeof(struct ETH_WRB_AMAP); - pnob->tx_q = pci_alloc_consistent(adapter->pdev, pnob->tx_q_size, - &pnob->tx_q_bus); - if (!pnob->tx_q_bus) - return -1; - memset(pnob->tx_q, 0, pnob->tx_q_size); - /* - * Eth TX Compl queue - */ - pnob->txcq_len = ETH_TXCQ_LEN; - pnob->tx_cq_size = pnob->txcq_len * sizeof(struct ETH_TX_COMPL_AMAP); - pnob->tx_cq = pci_alloc_consistent(adapter->pdev, pnob->tx_cq_size, - &pnob->tx_cq_bus); - if (!pnob->tx_cq_bus) - return -1; - memset(pnob->tx_cq, 0, pnob->tx_cq_size); - /* - * Eth RX queue - */ - pnob->rx_q_len = ETH_RXQ_LEN; - pnob->rx_q_size = pnob->rx_q_len * sizeof(struct ETH_RX_D_AMAP); - pnob->rx_q = pci_alloc_consistent(adapter->pdev, pnob->rx_q_size, - &pnob->rx_q_bus); - if (!pnob->rx_q_bus) - return -1; - memset(pnob->rx_q, 0, pnob->rx_q_size); - /* - * Eth Unicast RX Compl queue - */ - pnob->rx_cq_len = ETH_UC_RXCQ_LEN; - pnob->rx_cq_size = pnob->rx_cq_len * - sizeof(struct ETH_RX_COMPL_AMAP); - pnob->rx_cq = pci_alloc_consistent(adapter->pdev, pnob->rx_cq_size, - &pnob->rx_cq_bus); - if (!pnob->rx_cq_bus) - return -1; - memset(pnob->rx_cq, 0, pnob->rx_cq_size); - - /* TX resources */ - size = pnob->tx_q_len * sizeof(void **); - pnob->tx_ctxt = kzalloc(size, GFP_KERNEL); - if (pnob->tx_ctxt == NULL) - return -1; - - /* RX resources */ - size = pnob->rx_q_len * sizeof(void *); - pnob->rx_ctxt = kzalloc(size, GFP_KERNEL); - if (pnob->rx_ctxt == NULL) - return -1; - - size = (pnob->rx_q_len * sizeof(struct be_rx_page_info)); - pnob->rx_page_info = kzalloc(size, GFP_KERNEL); - if (pnob->rx_page_info == NULL) - return -1; - - adapter->eth_statsp = kzalloc(sizeof(struct FWCMD_ETH_GET_STATISTICS), - GFP_KERNEL); - if (adapter->eth_statsp == NULL) - return -1; - pnob->rx_buf_size = rxbuf_size; - return 0; -} - -/* - This function initializes the be_net_object for subsequent - network operations. - - Before calling this function, the driver must have allocated - space for the NetObject structure, initialized the structure, - allocated DMAable memory for all the network queues that form - part of the NetObject and populated the start address (virtual) - and number of entries allocated for each queue in the NetObject structure. - - The driver must also have allocated memory to hold the - mailbox structure (MCC_MAILBOX) and post the physical address, - virtual addresses and the size of the mailbox memory in the - NetObj.mb_rd. This structure is used by BECLIB for - initial communication with the embedded MCC processor. BECLIB - uses the mailbox until MCC rings are created for more efficient - communication with the MCC processor. - - If the driver wants to create multiple network interface for more - than one protection domain, it can call be_create_netobj() - multiple times once for each protection domain. A Maximum of - 32 protection domains are supported. - -*/ -static int -be_create_netobj(struct be_net_object *pnob, u8 __iomem *csr_va, - u8 __iomem *db_va, u8 __iomem *pci_va) -{ - int status = 0; - bool eventable = false, tx_no_delay = false, rx_no_delay = false; - struct be_eq_object *eq_objectp = NULL; - struct be_function_object *pfob = &pnob->fn_obj; - struct ring_desc rd; - u32 set_rxbuf_size; - u32 tx_cmpl_wm = CEV_WMARK_96; /* 0xffffffff to disable */ - u32 rx_cmpl_wm = CEV_WMARK_160; /* 0xffffffff to disable */ - u32 eq_delay = 0; /* delay in 8usec units. 0xffffffff to disable */ - - memset(&rd, 0, sizeof(struct ring_desc)); - - status = be_function_object_create(csr_va, db_va, pci_va, - BE_FUNCTION_TYPE_NETWORK, &pnob->mb_rd, pfob); - if (status != BE_SUCCESS) - return status; - pnob->fn_obj_created = true; - - if (tx_cmpl_wm == 0xffffffff) - tx_no_delay = true; - if (rx_cmpl_wm == 0xffffffff) - rx_no_delay = true; - /* - * now create the necessary rings - * Event Queue first. - */ - if (pnob->event_q_len) { - rd.va = pnob->event_q; - rd.pa = pnob->event_q_bus; - rd.length = pnob->event_q_size; - - status = be_eq_create(pfob, &rd, 4, pnob->event_q_len, - (u32) -1, /* CEV_WMARK_* or -1 */ - eq_delay, /* in 8us units, or -1 */ - &pnob->event_q_obj); - if (status != BE_SUCCESS) - goto error_ret; - pnob->event_q_id = pnob->event_q_obj.eq_id; - pnob->event_q_created = 1; - eventable = true; - eq_objectp = &pnob->event_q_obj; - } - /* - * Now Eth Tx Compl. queue. - */ - if (pnob->txcq_len) { - rd.va = pnob->tx_cq; - rd.pa = pnob->tx_cq_bus; - rd.length = pnob->tx_cq_size; - - status = be_cq_create(pfob, &rd, - pnob->txcq_len * sizeof(struct ETH_TX_COMPL_AMAP), - false, /* solicted events, */ - tx_no_delay, /* nodelay */ - tx_cmpl_wm, /* Watermark encodings */ - eq_objectp, &pnob->tx_cq_obj); - if (status != BE_SUCCESS) - goto error_ret; - - pnob->tx_cq_id = pnob->tx_cq_obj.cq_id; - pnob->tx_cq_created = 1; - } - /* - * Eth Tx queue - */ - if (pnob->tx_q_len) { - struct be_eth_sq_parameters ex_params = { 0 }; - u32 type; - - if (pnob->tx_q_port) { - /* TXQ to be bound to a specific port */ - type = BE_ETH_TX_RING_TYPE_BOUND; - ex_params.port = pnob->tx_q_port - 1; - } else - type = BE_ETH_TX_RING_TYPE_STANDARD; - - rd.va = pnob->tx_q; - rd.pa = pnob->tx_q_bus; - rd.length = pnob->tx_q_size; - - status = be_eth_sq_create_ex(pfob, &rd, - pnob->tx_q_len * sizeof(struct ETH_WRB_AMAP), - type, 2, &pnob->tx_cq_obj, - &ex_params, &pnob->tx_q_obj); - - if (status != BE_SUCCESS) - goto error_ret; - - pnob->tx_q_id = pnob->tx_q_obj.bid; - pnob->tx_q_created = 1; - } - /* - * Now Eth Rx compl. queue. Always needed. - */ - rd.va = pnob->rx_cq; - rd.pa = pnob->rx_cq_bus; - rd.length = pnob->rx_cq_size; - - status = be_cq_create(pfob, &rd, - pnob->rx_cq_len * sizeof(struct ETH_RX_COMPL_AMAP), - false, /* solicted events, */ - rx_no_delay, /* nodelay */ - rx_cmpl_wm, /* Watermark encodings */ - eq_objectp, &pnob->rx_cq_obj); - if (status != BE_SUCCESS) - goto error_ret; - - pnob->rx_cq_id = pnob->rx_cq_obj.cq_id; - pnob->rx_cq_created = 1; - - status = be_eth_rq_set_frag_size(pfob, pnob->rx_buf_size, - (u32 *) &set_rxbuf_size); - if (status != BE_SUCCESS) { - be_eth_rq_get_frag_size(pfob, (u32 *) &pnob->rx_buf_size); - if ((pnob->rx_buf_size != 2048) && (pnob->rx_buf_size != 4096) - && (pnob->rx_buf_size != 8192)) - goto error_ret; - } else { - if (pnob->rx_buf_size != set_rxbuf_size) - pnob->rx_buf_size = set_rxbuf_size; - } - /* - * Eth RX queue. be_eth_rq_create() always assumes 2 pages size - */ - rd.va = pnob->rx_q; - rd.pa = pnob->rx_q_bus; - rd.length = pnob->rx_q_size; - - status = be_eth_rq_create(pfob, &rd, &pnob->rx_cq_obj, - &pnob->rx_cq_obj, &pnob->rx_q_obj); - - if (status != BE_SUCCESS) - goto error_ret; - - pnob->rx_q_id = pnob->rx_q_obj.rid; - pnob->rx_q_created = 1; - - return BE_SUCCESS; /* All required queues created. */ - -error_ret: - be_destroy_netobj(pnob); - return status; -} - -static int be_nob_ring_init(struct be_adapter *adapter, - struct be_net_object *pnob) -{ - int status; - - pnob->event_q_tl = 0; - - pnob->tx_q_hd = 0; - pnob->tx_q_tl = 0; - - pnob->tx_cq_tl = 0; - - pnob->rx_cq_tl = 0; - - memset(pnob->event_q, 0, pnob->event_q_size); - memset(pnob->tx_cq, 0, pnob->tx_cq_size); - memset(pnob->tx_ctxt, 0, pnob->tx_q_len * sizeof(void **)); - memset(pnob->rx_ctxt, 0, pnob->rx_q_len * sizeof(void *)); - pnob->rx_pg_info_hd = 0; - pnob->rx_q_hd = 0; - atomic_set(&pnob->rx_q_posted, 0); - - status = be_create_netobj(pnob, adapter->csr_va, adapter->db_va, - adapter->pci_va); - if (status != BE_SUCCESS) - return -1; - - be_post_eth_rx_buffs(pnob); - return 0; -} - -/* This function handles async callback for link status */ -static void -be_link_status_async_callback(void *context, u32 event_code, void *event) -{ - struct ASYNC_EVENT_LINK_STATE_AMAP *link_status = event; - struct be_adapter *adapter = context; - bool link_enable = false; - struct be_net_object *pnob; - struct ASYNC_EVENT_TRAILER_AMAP *async_trailer; - struct net_device *netdev; - u32 async_event_code, async_event_type, active_port; - u32 port0_link_status, port1_link_status, port0_duplex, port1_duplex; - u32 port0_speed, port1_speed; - - if (event_code != ASYNC_EVENT_CODE_LINK_STATE) { - /* Not our event to handle */ - return; - } - async_trailer = (struct ASYNC_EVENT_TRAILER_AMAP *) - ((u8 *) event + sizeof(struct MCC_CQ_ENTRY_AMAP) - - sizeof(struct ASYNC_EVENT_TRAILER_AMAP)); - - async_event_code = AMAP_GET_BITS_PTR(ASYNC_EVENT_TRAILER, event_code, - async_trailer); - BUG_ON(async_event_code != ASYNC_EVENT_CODE_LINK_STATE); - - pnob = adapter->net_obj; - netdev = pnob->netdev; - - /* Determine if this event is a switch VLD or a physical link event */ - async_event_type = AMAP_GET_BITS_PTR(ASYNC_EVENT_TRAILER, event_type, - async_trailer); - active_port = AMAP_GET_BITS_PTR(ASYNC_EVENT_LINK_STATE, - active_port, link_status); - port0_link_status = AMAP_GET_BITS_PTR(ASYNC_EVENT_LINK_STATE, - port0_link_status, link_status); - port1_link_status = AMAP_GET_BITS_PTR(ASYNC_EVENT_LINK_STATE, - port1_link_status, link_status); - port0_duplex = AMAP_GET_BITS_PTR(ASYNC_EVENT_LINK_STATE, - port0_duplex, link_status); - port1_duplex = AMAP_GET_BITS_PTR(ASYNC_EVENT_LINK_STATE, - port1_duplex, link_status); - port0_speed = AMAP_GET_BITS_PTR(ASYNC_EVENT_LINK_STATE, - port0_speed, link_status); - port1_speed = AMAP_GET_BITS_PTR(ASYNC_EVENT_LINK_STATE, - port1_speed, link_status); - if (async_event_type == NTWK_LINK_TYPE_VIRTUAL) { - adapter->be_stat.bes_link_change_virtual++; - if (adapter->be_link_sts->active_port != active_port) { - dev_notice(&netdev->dev, - "Active port changed due to VLD on switch\n"); - } else { - dev_notice(&netdev->dev, "Link status update\n"); - } - - } else { - adapter->be_stat.bes_link_change_physical++; - if (adapter->be_link_sts->active_port != active_port) { - dev_notice(&netdev->dev, - "Active port changed due to port link" - " status change\n"); - } else { - dev_notice(&netdev->dev, "Link status update\n"); - } - } - - memset(adapter->be_link_sts, 0, sizeof(adapter->be_link_sts)); - - if ((port0_link_status == ASYNC_EVENT_LINK_UP) || - (port1_link_status == ASYNC_EVENT_LINK_UP)) { - if ((adapter->port0_link_sts == BE_PORT_LINK_DOWN) && - (adapter->port1_link_sts == BE_PORT_LINK_DOWN)) { - /* Earlier both the ports are down So link is up */ - link_enable = true; - } - - if (port0_link_status == ASYNC_EVENT_LINK_UP) { - adapter->port0_link_sts = BE_PORT_LINK_UP; - adapter->be_link_sts->mac0_duplex = port0_duplex; - adapter->be_link_sts->mac0_speed = port0_speed; - if (active_port == NTWK_PORT_A) - adapter->be_link_sts->active_port = 0; - } else - adapter->port0_link_sts = BE_PORT_LINK_DOWN; - - if (port1_link_status == ASYNC_EVENT_LINK_UP) { - adapter->port1_link_sts = BE_PORT_LINK_UP; - adapter->be_link_sts->mac1_duplex = port1_duplex; - adapter->be_link_sts->mac1_speed = port1_speed; - if (active_port == NTWK_PORT_B) - adapter->be_link_sts->active_port = 1; - } else - adapter->port1_link_sts = BE_PORT_LINK_DOWN; - - printk(KERN_INFO "Link Properties for %s:\n", netdev->name); - dev_info(&netdev->dev, "Link Properties:\n"); - be_print_link_info(adapter->be_link_sts); - - if (!link_enable) - return; - /* - * Both ports were down previously, but atleast one of - * them has come up if this netdevice's carrier is not up, - * then indicate to stack - */ - if (!netif_carrier_ok(netdev)) { - netif_start_queue(netdev); - netif_carrier_on(netdev); - } - return; - } - - /* Now both the ports are down. Tell the stack about it */ - dev_info(&netdev->dev, "Both ports are down\n"); - adapter->port0_link_sts = BE_PORT_LINK_DOWN; - adapter->port1_link_sts = BE_PORT_LINK_DOWN; - if (netif_carrier_ok(netdev)) { - netif_carrier_off(netdev); - netif_stop_queue(netdev); - } - return; -} - -static int be_mcc_create(struct be_adapter *adapter) -{ - struct be_net_object *pnob; - - pnob = adapter->net_obj; - /* - * Create the MCC ring so that all further communication with - * MCC can go thru the ring. we do this at the end since - * we do not want to be dealing with interrupts until the - * initialization is complete. - */ - pnob->mcc_q_len = MCC_Q_LEN; - pnob->mcc_q_size = pnob->mcc_q_len * sizeof(struct MCC_WRB_AMAP); - pnob->mcc_q = pci_alloc_consistent(adapter->pdev, pnob->mcc_q_size, - &pnob->mcc_q_bus); - if (!pnob->mcc_q_bus) - return -1; - /* - * space for MCC WRB context - */ - pnob->mcc_wrb_ctxtLen = MCC_Q_LEN; - pnob->mcc_wrb_ctxt_size = pnob->mcc_wrb_ctxtLen * - sizeof(struct be_mcc_wrb_context); - pnob->mcc_wrb_ctxt = (void *)__get_free_pages(GFP_KERNEL, - get_order(pnob->mcc_wrb_ctxt_size)); - if (pnob->mcc_wrb_ctxt == NULL) - return -1; - /* - * Space for MCC compl. ring - */ - pnob->mcc_cq_len = MCC_CQ_LEN; - pnob->mcc_cq_size = pnob->mcc_cq_len * sizeof(struct MCC_CQ_ENTRY_AMAP); - pnob->mcc_cq = pci_alloc_consistent(adapter->pdev, pnob->mcc_cq_size, - &pnob->mcc_cq_bus); - if (!pnob->mcc_cq_bus) - return -1; - return 0; -} - -/* - This function creates the MCC request and completion ring required - for communicating with the ARM processor. The caller must have - allocated required amount of memory for the MCC ring and MCC - completion ring and posted the virtual address and number of - entries in the corresponding members (mcc_q and mcc_cq) in the - NetObject struture. - - When this call is completed, all further communication with - ARM will switch from mailbox to this ring. - - pnob - Pointer to the NetObject structure. This NetObject should - have been created using a previous call to be_create_netobj() -*/ -int be_create_mcc_rings(struct be_net_object *pnob) -{ - int status = 0; - struct ring_desc rd; - struct be_function_object *pfob = &pnob->fn_obj; - - memset(&rd, 0, sizeof(struct ring_desc)); - if (pnob->mcc_cq_len) { - rd.va = pnob->mcc_cq; - rd.pa = pnob->mcc_cq_bus; - rd.length = pnob->mcc_cq_size; - - status = be_cq_create(pfob, &rd, - pnob->mcc_cq_len * sizeof(struct MCC_CQ_ENTRY_AMAP), - false, /* solicted events, */ - true, /* nodelay */ - 0, /* 0 Watermark since Nodelay is true */ - &pnob->event_q_obj, - &pnob->mcc_cq_obj); - - if (status != BE_SUCCESS) - return status; - - pnob->mcc_cq_id = pnob->mcc_cq_obj.cq_id; - pnob->mcc_cq_created = 1; - } - if (pnob->mcc_q_len) { - rd.va = pnob->mcc_q; - rd.pa = pnob->mcc_q_bus; - rd.length = pnob->mcc_q_size; - - status = be_mcc_ring_create(pfob, &rd, - pnob->mcc_q_len * sizeof(struct MCC_WRB_AMAP), - pnob->mcc_wrb_ctxt, pnob->mcc_wrb_ctxtLen, - &pnob->mcc_cq_obj, &pnob->mcc_q_obj); - - if (status != BE_SUCCESS) - return status; - - pnob->mcc_q_created = 1; - } - return BE_SUCCESS; -} - -static int be_mcc_init(struct be_adapter *adapter) -{ - u32 r; - struct be_net_object *pnob; - - pnob = adapter->net_obj; - memset(pnob->mcc_q, 0, pnob->mcc_q_size); - pnob->mcc_q_hd = 0; - - memset(pnob->mcc_wrb_ctxt, 0, pnob->mcc_wrb_ctxt_size); - - memset(pnob->mcc_cq, 0, pnob->mcc_cq_size); - pnob->mcc_cq_tl = 0; - - r = be_create_mcc_rings(adapter->net_obj); - if (r != BE_SUCCESS) - return -1; - - return 0; -} - -static void be_remove(struct pci_dev *pdev) -{ - struct be_net_object *pnob; - struct be_adapter *adapter; - - adapter = pci_get_drvdata(pdev); - if (!adapter) - return; - - pci_set_drvdata(pdev, NULL); - pnob = (struct be_net_object *)adapter->net_obj; - - flush_scheduled_work(); - - if (pnob) { - /* Unregister async callback function for link status updates */ - if (pnob->mcc_q_created) - be_mcc_add_async_event_callback(&pnob->mcc_q_obj, - NULL, NULL); - netobject_cleanup(adapter, pnob); - } - - if (adapter->csr_va) - iounmap(adapter->csr_va); - if (adapter->db_va) - iounmap(adapter->db_va); - if (adapter->pci_va) - iounmap(adapter->pci_va); - - pci_release_regions(adapter->pdev); - pci_disable_device(adapter->pdev); - - kfree(adapter->be_link_sts); - kfree(adapter->eth_statsp); - - if (adapter->timer_ctxt.get_stats_timer.function) - del_timer_sync(&adapter->timer_ctxt.get_stats_timer); - kfree(adapter); -} - -/* - * This function is called by the PCI sub-system when it finds a PCI - * device with dev/vendor IDs that match with one of our devices. - * All of the driver initialization is done in this function. - */ -static int be_probe(struct pci_dev *pdev, const struct pci_device_id *pdev_id) -{ - int status = 0; - struct be_adapter *adapter; - struct FWCMD_COMMON_GET_FW_VERSION_RESPONSE_PAYLOAD get_fwv; - struct be_net_object *pnob; - struct net_device *netdev; - - status = pci_enable_device(pdev); - if (status) - goto error; - - status = pci_request_regions(pdev, be_driver_name); - if (status) - goto error_pci_req; - - pci_set_master(pdev); - adapter = kzalloc(sizeof(struct be_adapter), GFP_KERNEL); - if (adapter == NULL) { - status = -ENOMEM; - goto error_adapter; - } - adapter->dev_state = BE_DEV_STATE_NONE; - adapter->pdev = pdev; - pci_set_drvdata(pdev, adapter); - - adapter->enable_aic = 1; - adapter->max_eqd = MAX_EQD; - adapter->min_eqd = 0; - adapter->cur_eqd = 0; - - status = pci_set_dma_mask(pdev, DMA_64BIT_MASK); - if (!status) { - adapter->dma_64bit_cap = true; - } else { - adapter->dma_64bit_cap = false; - status = pci_set_dma_mask(pdev, DMA_32BIT_MASK); - if (status != 0) { - printk(KERN_ERR "Could not set PCI DMA Mask\n"); - goto cleanup; - } - } - - status = init_pci_be_function(adapter, pdev); - if (status != 0) { - printk(KERN_ERR "Failed to map PCI BARS\n"); - status = -ENOMEM; - goto cleanup; - } - - be_trace_set_level(DL_ALWAYS | DL_ERR); - - adapter->be_link_sts = kmalloc(sizeof(struct BE_LINK_STATUS), - GFP_KERNEL); - if (adapter->be_link_sts == NULL) { - printk(KERN_ERR "Memory allocation for link status " - "buffer failed\n"); - goto cleanup; - } - spin_lock_init(&adapter->txq_lock); - - netdev = alloc_etherdev(sizeof(struct be_net_object)); - if (netdev == NULL) { - status = -ENOMEM; - goto cleanup; - } - pnob = netdev_priv(netdev); - adapter->net_obj = pnob; - adapter->netdevp = netdev; - pnob->adapter = adapter; - pnob->netdev = netdev; - - status = be_nob_ring_alloc(adapter, pnob); - if (status != 0) - goto cleanup; - - status = be_nob_ring_init(adapter, pnob); - if (status != 0) - goto cleanup; - - be_rxf_mac_address_read_write(&pnob->fn_obj, false, false, false, - false, false, netdev->dev_addr, NULL, NULL); - - netdev->init = &benet_init; - netif_carrier_off(netdev); - netif_stop_queue(netdev); - - SET_NETDEV_DEV(netdev, &(adapter->pdev->dev)); - - netif_napi_add(netdev, &pnob->napi, be_poll, 64); - - /* if the rx_frag size if 2K, one page is shared as two RX frags */ - pnob->rx_pg_shared = - (pnob->rx_buf_size <= PAGE_SIZE / 2) ? true : false; - if (pnob->rx_buf_size != rxbuf_size) { - printk(KERN_WARNING - "Could not set Rx buffer size to %d. Using %d\n", - rxbuf_size, pnob->rx_buf_size); - rxbuf_size = pnob->rx_buf_size; - } - - tasklet_init(&(adapter->sts_handler), be_process_intr, - (unsigned long)adapter); - adapter->tasklet_started = 1; - spin_lock_init(&(adapter->int_lock)); - - status = be_register_isr(adapter, pnob); - if (status != 0) - goto cleanup; - - adapter->rx_csum = 1; - adapter->max_rx_coal = BE_LRO_MAX_PKTS; - - memset(&get_fwv, 0, - sizeof(struct FWCMD_COMMON_GET_FW_VERSION_RESPONSE_PAYLOAD)); - printk(KERN_INFO "BladeEngine Driver version:%s. " - "Copyright ServerEngines, Corporation 2005 - 2008\n", - be_drvr_ver); - status = be_function_get_fw_version(&pnob->fn_obj, &get_fwv, NULL, - NULL); - if (status == BE_SUCCESS) { - strncpy(be_fw_ver, get_fwv.firmware_version_string, 32); - printk(KERN_INFO "BladeEngine Firmware Version:%s\n", - get_fwv.firmware_version_string); - } else { - printk(KERN_WARNING "Unable to get BE Firmware Version\n"); - } - - sema_init(&adapter->get_eth_stat_sem, 0); - init_timer(&adapter->timer_ctxt.get_stats_timer); - atomic_set(&adapter->timer_ctxt.get_stat_flag, 0); - adapter->timer_ctxt.get_stats_timer.function = - &be_get_stats_timer_handler; - - status = be_mcc_create(adapter); - if (status < 0) - goto cleanup; - status = be_mcc_init(adapter); - if (status < 0) - goto cleanup; - - - status = be_mcc_add_async_event_callback(&adapter->net_obj->mcc_q_obj, - be_link_status_async_callback, (void *)adapter); - if (status != BE_SUCCESS) { - printk(KERN_WARNING "add_async_event_callback failed"); - printk(KERN_WARNING - "Link status changes may not be reflected\n"); - } - - status = register_netdev(netdev); - if (status != 0) - goto cleanup; - be_update_link_status(adapter); - adapter->dev_state = BE_DEV_STATE_INIT; - return 0; - -cleanup: - be_remove(pdev); - return status; -error_adapter: - pci_release_regions(pdev); -error_pci_req: - pci_disable_device(pdev); -error: - printk(KERN_ERR "BladeEngine initalization failed\n"); - return status; -} - -/* - * Get the current link status and print the status on console - */ -void be_update_link_status(struct be_adapter *adapter) -{ - int status; - struct be_net_object *pnob = adapter->net_obj; - - status = be_rxf_link_status(&pnob->fn_obj, adapter->be_link_sts, NULL, - NULL, NULL); - if (status == BE_SUCCESS) { - if (adapter->be_link_sts->mac0_speed && - adapter->be_link_sts->mac0_duplex) - adapter->port0_link_sts = BE_PORT_LINK_UP; - else - adapter->port0_link_sts = BE_PORT_LINK_DOWN; - - if (adapter->be_link_sts->mac1_speed && - adapter->be_link_sts->mac1_duplex) - adapter->port1_link_sts = BE_PORT_LINK_UP; - else - adapter->port1_link_sts = BE_PORT_LINK_DOWN; - - dev_info(&pnob->netdev->dev, "Link Properties:\n"); - be_print_link_info(adapter->be_link_sts); - return; - } - dev_info(&pnob->netdev->dev, "Could not get link status\n"); - return; -} - - -#ifdef CONFIG_PM -static void -be_pm_cleanup(struct be_adapter *adapter, - struct be_net_object *pnob, struct net_device *netdev) -{ - netif_carrier_off(netdev); - netif_stop_queue(netdev); - - be_wait_nic_tx_cmplx_cmpl(pnob); - be_disable_eq_intr(pnob); - - if (adapter->tasklet_started) { - tasklet_kill(&adapter->sts_handler); - adapter->tasklet_started = 0; - } - - be_unregister_isr(adapter); - be_disable_intr(pnob); - - be_tx_q_clean(pnob); - be_rx_q_clean(pnob); - - be_destroy_netobj(pnob); -} - -static int be_suspend(struct pci_dev *pdev, pm_message_t state) -{ - struct be_adapter *adapter = pci_get_drvdata(pdev); - struct net_device *netdev = adapter->netdevp; - struct be_net_object *pnob = netdev_priv(netdev); - - adapter->dev_pm_state = adapter->dev_state; - adapter->dev_state = BE_DEV_STATE_SUSPEND; - - netif_device_detach(netdev); - if (netif_running(netdev)) - be_pm_cleanup(adapter, pnob, netdev); - - pci_enable_wake(pdev, 3, 1); - pci_enable_wake(pdev, 4, 1); /* D3 Cold = 4 */ - pci_save_state(pdev); - pci_disable_device(pdev); - pci_set_power_state(pdev, pci_choose_state(pdev, state)); - return 0; -} - -static void be_up(struct be_adapter *adapter) -{ - struct be_net_object *pnob = adapter->net_obj; - - if (pnob->num_vlans != 0) - be_rxf_vlan_config(&pnob->fn_obj, false, pnob->num_vlans, - pnob->vlan_tag, NULL, NULL, NULL); - -} - -static int be_resume(struct pci_dev *pdev) -{ - int status = 0; - struct be_adapter *adapter = pci_get_drvdata(pdev); - struct net_device *netdev = adapter->netdevp; - struct be_net_object *pnob = netdev_priv(netdev); - - netif_device_detach(netdev); - - status = pci_enable_device(pdev); - if (status) - return status; - - pci_set_power_state(pdev, 0); - pci_restore_state(pdev); - pci_enable_wake(pdev, 3, 0); - pci_enable_wake(pdev, 4, 0); /* 4 is D3 cold */ - - netif_carrier_on(netdev); - netif_start_queue(netdev); - - if (netif_running(netdev)) { - be_rxf_mac_address_read_write(&pnob->fn_obj, false, false, - false, true, false, netdev->dev_addr, NULL, NULL); - - status = be_nob_ring_init(adapter, pnob); - if (status < 0) - return status; - - tasklet_init(&(adapter->sts_handler), be_process_intr, - (unsigned long)adapter); - adapter->tasklet_started = 1; - - if (be_register_isr(adapter, pnob) != 0) { - printk(KERN_ERR "be_register_isr failed\n"); - return status; - } - - - status = be_mcc_init(adapter); - if (status < 0) { - printk(KERN_ERR "be_mcc_init failed\n"); - return status; - } - be_update_link_status(adapter); - /* - * Register async call back function to handle link - * status updates - */ - status = be_mcc_add_async_event_callback( - &adapter->net_obj->mcc_q_obj, - be_link_status_async_callback, (void *)adapter); - if (status != BE_SUCCESS) { - printk(KERN_WARNING "add_async_event_callback failed"); - printk(KERN_WARNING - "Link status changes may not be reflected\n"); - } - be_enable_intr(pnob); - be_enable_eq_intr(pnob); - be_up(adapter); - } - netif_device_attach(netdev); - adapter->dev_state = adapter->dev_pm_state; - return 0; - -} - -#endif - -/* Wait until no more pending transmits */ -void be_wait_nic_tx_cmplx_cmpl(struct be_net_object *pnob) -{ - int i; - - /* Wait for 20us * 50000 (= 1s) and no more */ - i = 0; - while ((pnob->tx_q_tl != pnob->tx_q_hd) && (i < 50000)) { - ++i; - udelay(20); - } - - /* Check for no more pending transmits */ - if (i >= 50000) { - printk(KERN_WARNING - "Did not receive completions for all TX requests\n"); - } -} - -static struct pci_driver be_driver = { - .name = be_driver_name, - .id_table = be_device_id_table, - .probe = be_probe, -#ifdef CONFIG_PM - .suspend = be_suspend, - .resume = be_resume, -#endif - .remove = be_remove -}; - -/* - * Module init entry point. Registers our our device and return. - * Our probe will be called if the device is found. - */ -static int __init be_init_module(void) -{ - int ret; - - if (rxbuf_size != 8192 && rxbuf_size != 4096 && rxbuf_size != 2048) { - printk(KERN_WARNING - "Unsupported receive buffer size (%d) requested\n", - rxbuf_size); - printk(KERN_WARNING - "Must be 2048, 4096 or 8192. Defaulting to 2048\n"); - rxbuf_size = 2048; - } - - ret = pci_register_driver(&be_driver); - - return ret; -} - -module_init(be_init_module); - -/* - * be_exit_module - Driver Exit Cleanup Routine - */ -static void __exit be_exit_module(void) -{ - pci_unregister_driver(&be_driver); -} - -module_exit(be_exit_module); |