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Message-ID: <20080217023031.f9fe8e69@mailhost.serverengines.com>
Date: Sat, 16 Feb 2008 18:30:31 -0800
From: "Subbu Seetharaman" <subbus@...verengines.com>
To: netdev@...r.kernel.org
Subject: [PATHCH 1/16] ServerEngines 10Gb NIC driver
NIC driver header files, h/w initialization function and
driver entry points.
------------------------------
diff -uprN orig/linux-2.6.24.2/drivers/net/benet/be.h benet/linux-2.6.24.2/drivers/net/benet/be.h
--- orig/linux-2.6.24.2/drivers/net/benet/be.h 1970-01-01 05:30:00.000000000 +0530
+++ benet/linux-2.6.24.2/drivers/net/benet/be.h 2008-02-14 15:23:07.787208928 +0530
@@ -0,0 +1,373 @@
+/*
+ * 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
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or at your option any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, 5th Floor
+ * Boston, MA 02110-1301 USA
+ *
+ *
+ * The full GNU General Public License is included in this distribution
+ * in the file called GPL.
+ *
+ * Contact Information:
+ * linux-drivers@...verengines.com
+ *
+ * ServerEngines
+ * 209 N. Fair Oaks Ave
+ * Sunnyvale, CA 94085
+ *
+ */
+#ifndef _BE_H
+#define _BE_H
+
+#include <linux/netdevice.h>
+#include "bni.h"
+
+typedef union _PHYSICAL_ADDRESS {
+ struct {
+ u32 pa_lo;
+ u32 pa_hi;
+ };
+ u64 pa;
+} PHYSICAL_ADDRESS;
+
+#define BE_ETHERNET_FCS_SIZE 4
+#define BE_ENET_HEADER_SIZE 14
+#define BE_VLAN_HEADER_SIZE 4
+#define BE_SNAP_HEADER_SIZE 5
+#define BE_HEADER_ETHERNET_II_802_3_SIZE 14
+#define BE_HEADER_802_2_SIZE 3
+#define BE_MIN_ETHER_FRAME_SIZE 64
+#define BE_MIN_SUPPORT_FRAME_SIZE 256
+#define BE_MAX_JUMBO_FRAME_SIZE 9000
+#define BE_MAXIMUM_ETHERNET_FRAME_SIZE 1518 /*With FCS */
+
+extern unsigned int dbg_mask;
+extern unsigned int pm_resume;
+
+extern char be_drvr_ver[];
+extern char be_fw_ver[];
+extern char be_driver_name[];
+
+typedef enum {
+ BE_DEVICE_1,
+ BE_DEVICE_2,
+ MAX_BE_DEVICES
+} BE_DEVICE_NUM;
+
+typedef enum {
+ BE_DEV_STATE_NONE,
+ BE_DEV_STATE_INIT,
+ BE_DEV_STATE_OPEN
+} BE_DEV_STATE;
+
+#define BE_DEV_STATE_OPEN(adapter) (adapter->dev_state == BE_DEV_STATE_OPEN)
+
+/*
+ * BE driver statistics.
+ */
+struct _be_stat {
+ u32 bes_tx_reqs; /* number of TX requests initiated */
+ u32 bes_tx_fails; /* number of TX requests that failed */
+ u32 bes_fwd_reqs; /* number of send reqs through forwarding i/f */
+ u32 bes_tx_wrbs; /* number of tx WRBs used */
+
+ u32 bes_ints; /* number of interrupts */
+ u32 bes_polls; /* number of times NAPI called poll function */
+ u32 bes_events; /* total evet entries processed */
+ u32 bes_tx_events; /* number of tx completion events */
+ u32 bes_ucrx_events; /* number of ucast rx completion events */
+ u32 bes_bcrx_events; /* number of bcast rx completion events */
+ u32 bes_tx_compl; /* number of tx completion entries processed */
+ u32 bes_ucrx_compl; /* number of ucrx completion entries
+ processed */
+ u32 bes_bcrx_compl; /* number of bcrx completion entries
+ processed */
+ u32 bes_ethrx_post_fail; /* number of ethrx buffer alloc
+ failures */
+ /*
+ *
+ * number of non ether type II frames dropped where
+ * frame len > length field of Mac Hdr
+ */
+ u32 bes_802_3_dropped_frames;
+ /*
+ * number of non ether type II frames malformed where
+ * in frame len < length field of Mac Hdr
+ */
+ u32 bes_802_3_malformed_frames;
+ u32 bes_ips; /* interrupts / sec */
+ u32 bes_prev_ints; /* bes_ints at last IPS calculation */
+ u16 bes_eth_tx_rate; /* ETH TX rate - Mb/sec */
+ u16 bes_eth_rx_rate; /* ETH RX rate - Mb/sec */
+#ifdef RX_PKT_COALESCE
+ u32 bes_rx_coal; /* Num pkts coalasced */
+ u32 bes_rx_flush; /* Num times coalasced */
+#endif
+ u32 bes_link_change_physical; /*Num of times physical link changed */
+ u32 bes_link_change_virtual; /*Num of times virtual link changed */
+};
+
+/* Macro to update RX/TX rates */
+#define UPDATE_RATE(AP, JIF, BYTES, RATE) \
+ if ((jiffies - AP->JIF) > 2*(HZ)) { \
+ u32 r; \
+ r = AP->BYTES / ((jiffies-AP->JIF)/(HZ)); \
+ r = (r / 1000000); /* MB/Sec */ \
+ AP->be_stat.RATE = (r * 8); /* Mega Bits/Sec */ \
+ AP->JIF = jiffies; \
+ AP->BYTES = 0; \
+ }
+
+/*
+ * Every second we look at the ints/sec and adjust eq_delay
+ * between AP->min_eqd and AP->max_eqd to keep the ints/sec between
+ * IPS_HI_WM and IPS_LO_WM.
+ */
+#define IPS_HI_WM 18000
+#define IPS_LO_WM 8000
+#define UPDATE_IPS(AP, NP) \
+ if ((jiffies - AP->ips_jiffies) > 1*(HZ)) { \
+ /* One second elapsed since last update */ \
+ u32 r, new_eqd = -1; \
+ if (AP->be_stat.bes_prev_ints > \
+ AP->be_stat.bes_ints) { \
+ /* interrupt counter wrapped aroud */ \
+ r = (0xFFFFFFFF - \
+ AP->be_stat.bes_prev_ints) + \
+ AP->be_stat.bes_ints; \
+ } \
+ else \
+ r = AP->be_stat.bes_ints - \
+ AP->be_stat.bes_prev_ints; \
+ r = r / ((jiffies - AP->ips_jiffies)/(HZ)); \
+ AP->be_stat.bes_ips = r; \
+ AP->ips_jiffies = jiffies; \
+ AP->be_stat.bes_prev_ints = \
+ AP->be_stat.bes_ints; \
+ if (r > IPS_HI_WM && \
+ AP->cur_eqd < AP->max_eqd) { \
+ /* increase eqdelay by a notch */ \
+ new_eqd = (AP->cur_eqd + 8); \
+ } \
+ if (r < IPS_LO_WM && \
+ AP->cur_eqd > AP->min_eqd) { \
+ /* decrease eqdelay by a notch */ \
+ new_eqd = (AP->cur_eqd - 8); \
+ } \
+ if (AP->enable_aic && new_eqd != -1) { \
+ /* program new delay */ \
+ if (bni_change_eqd(NP, new_eqd) == \
+ BE_SUCCESS) \
+ AP->cur_eqd = new_eqd; \
+ } \
+ }
+
+#define FAIL 1
+#define SUCCESS 0
+
+#define MAX_EQD 120
+
+/*
+ * timer to prevent system shutdown hang for ever if h/w stops responding
+ */
+typedef struct {
+ atomic_t get_stat_flag;
+ struct timer_list get_stats_timer;
+ unsigned long get_stat_sem; /* semaphore to wait */
+} be_timer_ctxt_t;
+
+#ifdef RX_PKT_COALESCE
+#define MAX_COALESCE_SIZE 48*1024
+#define MAX_COALESCE_FRAGS (MAX_SKB_FRAGS - 1)
+#define MAX_COALESCE_OBJECTS 8
+/* struture to keep track of adjacent packets in a connection that
+ * can be colesced to a larger packet during RX completion processing.
+ */
+struct be_coalesce_object {
+ PBNI_NET_OBJECT pnob;
+ struct sk_buff *skb;
+ unsigned int frag_cnt;
+ unsigned int next_pkt_seq;
+ unsigned int next_ack_seq;
+ unsigned int tcp_timestamp;
+ unsigned int tcp_tsecr;
+ unsigned int tcp_tsval;
+ unsigned short sport;
+ unsigned short dport;
+ unsigned int saddr;
+ unsigned int daddr;
+ unsigned short last_seen_window;
+ unsigned short mss;
+ unsigned short vlant;
+ unsigned short rsvd;
+
+};
+#endif /* RX_PKT_COALESCE */
+
+/* This structure is the main BladeEngine driver context. */
+typedef struct _BE_ADAPTER {
+ struct net_device *netdevp;
+ struct _be_stat be_stat;
+ struct net_device_stats benet_stats;
+ u32 num_bars;
+ SA_DEV_BAR_LOCATIONS pci_bars[3]; /* PCI BAR details */
+#ifdef CONFIG_PM
+ u32 pci_state[16];
+#endif
+ SA_DEV sa_device; /* device object owned by beclib */
+ BE_CHIP_OBJECT chip_object; /* BEClib chip object */
+
+ struct tasklet_struct sts_handler;
+ struct timer_list cq_timer;
+ spinlock_t int_lock;
+
+ PIOCTL_ETH_GET_STATISTICS eth_statsp;
+ /*
+ * This will enable the use of ethtool to enable or disable
+ * Checksum on Rx pkts to be obeyed or disobeyed.
+ * If this is TRUE = 1, then whatever is the checksum on the
+ * Received pkt as per BE, it will be given to the stack.
+ * Else the stack will re calculate it.
+ */
+ BOOLEAN rx_csum;
+#ifdef RX_PKT_COALESCE
+ /*
+ * This will enable the use of ethtool to enable or disable
+ * Coalese on Rx pkts to be obeyed or disobeyed.
+ * If this is grater than 0 and less than 16 then coalascing
+ * is enabled else it is disabled
+ */
+ u32 max_rx_coal;
+#endif
+ struct pci_dev *pdev; /* Pointer to OS's PCI dvice */
+
+ spinlock_t txq_lock;
+
+ u32 isr; /* copy of Intr status reg. */
+
+ u32 port0_link_sts; /* Port 0 link status */
+ u32 port1_link_sts; /* port 1 list status */
+ PBE_LINK_STATUS be_link_sts;
+ PBNI_NET_OBJECT net_obj;
+
+ /* Flags to indicate what to clean up */
+ BOOLEAN tasklet_started;
+ BOOLEAN isr_registered;
+ /*
+ * adaptive interrupt coalescing (AIC) related
+ */
+ u16 enable_aic; /* 1 if AIC is enabled */
+ u16 min_eqd; /* minimum EQ delay in usec */
+ u16 max_eqd; /* minimum EQ delay in usec */
+ u16 cur_eqd; /* current EQ delay in usec */
+ /*
+ * book keeping for interrupt / sec and TX/RX rate calculation
+ */
+ ulong ips_jiffies; /* jiffies at last IPS calc */
+ u32 eth_tx_bytes;
+ ulong eth_tx_jiffies;
+ u32 eth_rx_bytes;
+ ulong eth_rx_jiffies;
+
+ struct semaphore get_eth_stat_sem;
+ be_timer_ctxt_t *ctxt; /* context for get stats timer */
+
+#define BE_MAX_MSIX_VECTORS 32
+#define BE_MAX_REQ_MSIX_VECTORS 1
+ struct msix_entry msix_entries[BE_MAX_MSIX_VECTORS];
+ BOOLEAN msix_enabled; /*MSI has been enabled */
+ BOOLEAN dma_64bit_cap; /* is the Device DAC capable */
+ int be_fw_ver; /* BE F/W version */
+ BOOLEAN dev_state; /* The current state of the device */
+
+} BE_ADAPTER, *PBE_ADAPTER;
+
+extern PBE_ADAPTER be_adapter[MAX_BE_DEVICES];
+
+typedef struct be_rx_page_info {
+ struct page *page;
+ dma_addr_t bus;
+ u16 page_offset;
+} BE_RX_PAGE_INFO;
+
+/*
+ * linux_net_object is an extension to BNI's NetObject structure.
+ * NetObject has a pointer to this structure
+ */
+typedef struct {
+ PVOID os_handle; /* Context info for VMM */
+ BNI_RECV_BUFFER eth_rx_bufs[256]; /* to pass Rx buffer
+ addresses */
+ PBE_ADAPTER adapter; /* Pointer to OSM adapter */
+ u32 devno; /* OSM, network dev no. */
+ u32 use_port; /* Current active port */
+ BE_RX_PAGE_INFO *rx_page_info; /* Array of Rx buf pages */
+ u32 rx_pg_info_hd; /* Head of queue */
+ int rxbuf_post_fail; /* RxBuff posting fail count */
+ BOOLEAN rx_pg_shared; /* Is an allocsted page shared as two frags ? */
+ struct vlan_group *vlan_grp;
+ u32 num_vlans; /* Number of vlans in BE's filter */
+ u16 vlan_tag[BE_NUM_VLAN_SUPPORTED]; /* vlans currently configured */
+#ifdef CONFIG_BENET_NAPI
+ struct napi_struct napi;
+ u32 work_quota; /* Max RX packets to process */
+ BOOLEAN rx_sched;
+ spinlock_t rx_lock;
+#endif
+#ifdef RX_PKT_COALESCE
+ struct be_coalesce_object rxc_obj[MAX_COALESCE_OBJECTS];
+ u32 num_coalesce_objects;
+#endif
+} linux_net_object_t;
+
+/* convenience macro to access members in Linux extension of NetObject */
+#define OSM_NOB(x) ((linux_net_object_t *) (x)->osm_netobj)
+
+/* proto declarations */
+
+int benet_probe(struct net_device *netdev);
+void be_set_ethtool_ops(struct net_device *netdev);
+int be_ethtool_ioctl(struct net_device *netdev, struct ifreq *ifr);
+struct net_device_stats *benet_get_stats(struct net_device *);
+
+int be_prepare_interface(PBE_ADAPTER adapter);
+void cleanup_netobject(PBNI_NET_OBJECT);
+void osm_process_sts(unsigned long context);
+irqreturn_t be_int(int irq, PVOID dev, struct pt_regs *regs);
+
+int betx_ether_frame(PBE_ADAPTER pBeAdapter, PBNI_NET_OBJECT NetObject,
+ struct sk_buff *skb, u8 proto, u8 forward,
+ u16 lso_mss);
+
+void post_eth_rx_buffs(PBNI_NET_OBJECT NetObject);
+void get_stat_cb(PVOID context, BESTATUS status, MCC_WRB *optional_wrb);
+
+void get_stats_timer_handler(unsigned long context);
+
+void enable_eq_intr(PBNI_NET_OBJECT pnob);
+void disable_eq_intr(PBNI_NET_OBJECT pnob);
+
+void wait_nic_tx_cmpl(PBNI_NET_OBJECT pnob);
+void be_print_link_info(PBE_LINK_STATUS lnk_status);
+void be_update_link_status(PBE_ADAPTER adapter);
+
+void be_init_procfs(PBE_ADAPTER adapter);
+void be_cleanup_procfs(PBE_ADAPTER adapter);
+
+#ifdef CONFIG_BENET_NAPI
+int be_poll(struct napi_struct *napi, int budget);
+#endif
+#endif /* _BE_H */
diff -uprN orig/linux-2.6.24.2/drivers/net/benet/bni.h benet/linux-2.6.24.2/drivers/net/benet/bni.h
--- orig/linux-2.6.24.2/drivers/net/benet/bni.h 1970-01-01 05:30:00.000000000 +0530
+++ benet/linux-2.6.24.2/drivers/net/benet/bni.h 2008-02-14 15:23:07.788208776 +0530
@@ -0,0 +1,374 @@
+/*
+ * 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
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or at your option any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, 5th Floor
+ * Boston, MA 02110-1301 USA
+ *
+ *
+ * The full GNU General Public License is included in this distribution
+ * in the file called GPL.
+ *
+ * Contact Information:
+ * linux-drivers@...verengines.com
+ *
+ * ServerEngines
+ * 209 N. Fair Oaks Ave
+ * Sunnyvale, CA 94085
+ *
+ */
+/*
+
+@...e
+ bni.h
+
+@...ef
+ Definitions and macros that are required for all .c files
+ that use the BNI API and implement the BNI API functions
+*/
+#ifndef _BNI_H
+#define _BNI_H
+
+#define _SA_MODULE_NAME "net-driver"
+#include "beclib_ll.h"
+
+#define VLAN_VALID_BIT 0x8000
+#define BE_NUM_VLAN_SUPPORTED 32
+#define BE_PORT_LINK_DOWN 0000
+#define BE_PORT_LINK_UP 0001
+
+typedef unsigned char BOOLEAN;
+
+#define TOU32(_struct_) *((u32 *)(&(_struct_)))
+
+/*
+ * DLs used by the Network driver. 0x00000000 to 0x00000800 are used
+ * by SA/BECLIB
+ */
+typedef enum _NETD_DEBUG_LEVELS {
+ DL_ERROR = DL_ERR,
+ DL_EVENT = 0x00001000,
+ DL_CQ = 0x00002000,
+ DL_SEND = 0x00004000,
+ DL_RECV = 0x00008000,
+ DL_WINDOW = 0x00010000,
+ DL_OFFLOAD = 0x00020000,
+ DL_UPLOAD = 0x00040000,
+ DL_VLAN = 0x00080000,
+ DL_IPSEC = 0x00100000,
+ DL_INT = 0x00200000,
+ DL_PNP = 0x00400000,
+ DL_ETH_INFO = 0x00800000,
+ DL_TIMER = 0x01000000,
+ DL_INIT = 0x02000000,
+ DL_SHUTDOWN = 0x04000000,
+} NET_DEBUG_LEVELS;
+
+/*
+ * Structure to return Ethernet statistics counters maintained by BE.
+ * Defined in srcgen.
+ */
+typedef BE_RXF_STATS BLADE_ETH_STATS, *PBLADE_ETH_STATS;
+
+/*
+@...ef
+ This structure is used by the OSM driver to give BNI
+ physical fragments to use for DMAing data from NIC.
+*/
+typedef struct _BNI_RECV_BUFFER {
+ SA_LIST_ENTRY rxb_list; /* for maintaining a linked list */
+ PVOID rxb_va; /* buffer virtual address */
+ u32 rxb_pa_lo; /* low part of physical address */
+ u32 rxb_pa_hi; /* high part of physical address */
+ u32 rxb_len; /* length of recv buffer */
+ PVOID rxb_ctxt; /* context for OSM driver to use */
+} BNI_RECV_BUFFER, *PBNI_RECV_BUFFER;
+
+/*
+ * fragment list to describe scattered data.
+ */
+typedef struct _BNI_TX_FRAG_LIST {
+ u32 txb_len; /* Size of this fragment */
+ u32 txb_pa_lo; /* Lower 32 bits of 64 bit physical addr */
+ u32 txb_pa_hi; /* Higher 32 bits of 64 bit physical addr */
+} BNI_TX_FRAG_LIST, *PBNI_TX_FRAG_LIST;
+/*
+ * maximum fragements in a TX request
+ */
+#define BE_MAX_TX_FRAG_COUNT (30)
+
+/*
+ * Flag bits for send operation
+ */
+#define IPCS (1 << 0) /* Enable IP checksum offload */
+#define UDPCS (1 << 1) /* Enable UDP checksum offload */
+#define TCPCS (1 << 2) /* Enable TCP checksum offload */
+#define LSO (1 << 3) /* Enable Large Segment offload */
+#define ETHVLAN (1 << 4) /* Enable VLAN insert */
+#define ETHEVENT (1 << 5) /* Generate event on completion */
+#define ETHCOMPLETE (1 << 6) /* Generate completion when done */
+#define IPSEC (1 << 7) /* Enable IPSEC */
+#define FORWARD (1 << 8) /* Send the packet in forwarding path */
+#define FIN (1 << 9) /* Issue FIN segment */
+
+/* @brief
+ * This structure is the main tracking structure for a NIC interface.
+ * This data structure contains OS agnostic data members for processing
+ * intialization, sends, receives, and asynchronous events from the
+ * BladeEngine network function. The OSM driver makes
+ * calls into functions defined at this layer for initialization,
+ * eumeration and population of physical fragments with per-packet
+ * control flags for send and receive operations, population of
+ * receive buffers for NIC , and handling asynchronous
+ * events (such as link status change, packet pattern recognition etc.).
+ */
+typedef struct _BNI_NET_OBJECT {
+
+ /*
+ * MCC Ring - used to send ioctl cmds to embedded ARM processor
+ */
+ PMCC_WRB mcc_q; /* VA of the start of the ring */
+ u32 mcc_q_len; /* # of WRB entries in this ring */
+ u32 mcc_q_hd; /* MCC ring head */
+ u8 mcc_q_created; /* flag to help cleanup */
+ u8 mcc_q_pages; /* Num of pages allocacted by OSM */
+ BE_MCC_OBJECT mcc_q_obj; /* BECLIB's MCC ring Object */
+ SA_PHYSICAL_ADDRESS mcc_q_pa; /* Physical address in LE order */
+ /*
+ * MCC Completion Ring - ARM's responses to ioctls sent from MCC ring
+ */
+ PMCC_CQ_ENTRY mcc_cq; /* VA of the start of the ring */
+ u32 mcc_cq_len; /* # of compl. entries in this ring */
+ u32 mcc_cq_tl; /* compl. ring tail */
+ u8 mcc_cq_created; /* flag to help cleanup */
+ u8 mcc_cq_pages; /* Num of pages allocacted by OSM */
+ BE_CQ_OBJECT mcc_cq_obj; /* BECLIB's MCC compl. ring object */
+ u32 mcc_cq_id; /* MCC ring ID */
+ SA_PHYSICAL_ADDRESS mcc_cq_pa; /* Physical address in LE order */
+ /*
+ * BEClib uses an array of context objects to track outstanding
+ * requests to the MCC. We need allocate the same number of
+ * conext entries as the number of entries in the MCC WRB ring
+ */
+ u8 mcc_wrb_ctxt_pages; /* Num of pages allocacted by OSM */
+ PVOID mcc_wrb_ctxt; /* pointer to the context area */
+ u32 mcc_wrb_ctxtLen; /* Number of entries in the context */
+ /*
+ * NIC send request ring - used for xmitting raw ether frames.
+ */
+ PETH_WRB tx_q; /* VA of the start of the ring */
+ u32 tx_q_len; /* # if entries in the send ring */
+ u32 tx_q_hd; /* Head index. Next req. goes here */
+ u32 tx_q_tl; /* Tail indx. oldest outstanding req. */
+ u8 tx_q_created; /* flag to help cleanup */
+ u8 tx_q_pages; /* Num of pages allocacted by OSM */
+ BE_ETHSQ_OBJECT tx_q_obj; /* BECLIB's send Q handle */
+ SA_PHYSICAL_ADDRESS tx_q_pa; /* Physical address in LE order */
+ u32 tx_q_id; /* send queue ring ID */
+ u32 tx_q_port; /* 0 no binding, 1 port A, 2 port B */
+
+ u32 tx_q_used; /* # of WRBs used */
+ /* ptr to an array in which we store context info for each send req. */
+ PVOID *tx_ctxt;
+ /*
+ * NIC Send compl. ring - completion status for all NIC frames xmitted.
+ */
+ PETH_TX_COMPL tx_cq; /* VA of start of the ring */
+ u32 txcq_len; /* # of entries in the ring */
+ /*
+ * index into compl ring where the host expects next completion entry
+ */
+ u32 tx_cq_tl;
+ u32 tx_cq_id; /* completion queue id */
+ u8 tx_cq_created; /* flag to help cleanup */
+ u8 tx_cq_pages; /* Num of pages allocacted by OSM */
+ BE_CQ_OBJECT tx_cq_obj;
+ SA_PHYSICAL_ADDRESS tx_cq_pa; /* Physical address in LE order */
+ /*
+ * Event Queue - all completion entries post events here.
+ */
+ PEQ_ENTRY event_q; /* VA of start of event queue */
+ u32 event_q_len; /* # of entries */
+ u32 event_q_tl; /* Tail of the event queue */
+ u32 event_q_id; /* Event queue ID */
+ u8 event_q_created; /* flag to help cleanup */
+ u8 event_q_pages; /* Num of pages allocacted by OSM */
+ BE_EQ_OBJECT event_q_obj; /* Queue handle */
+ SA_PHYSICAL_ADDRESS event_q_pa; /* Physical address in LE order */
+ /*
+ * NIC receive queue - Data buffers to be used for receiving unicast,
+ * broadcast and multi-cast frames are posted here.
+ */
+ PETH_RX_D rx_q; /* VA of start of the queue */
+ u32 rx_q_len; /* # of entries */
+ u32 rx_q_hd; /* Head of the queue */
+ u32 rx_q_posted; /* number of posted buffers */
+ u32 rx_q_id; /* queue ID */
+ u8 rx_q_created; /* flag to help cleanup */
+ u8 rx_q_pages; /* Num of pages allocacted by OSM */
+ BE_ETHRQ_OBJECT rx_q_obj; /* NIC RX queue handle */
+ SA_PHYSICAL_ADDRESS rx_q_pa; /* Physical address */
+ /*
+ * Pointer to an array of opaque context object for use by OSM driver
+ */
+ PVOID *rx_ctxt;
+ /*
+ * NIC unicast RX completion queue - all unicast ether frame completion
+ * statuses from BE come here.
+ */
+ PETH_RX_COMPL ucrx_cq; /* VA of start of the queue */
+ u32 ucrx_cq_len; /* # of entries */
+ u32 ucrx_cq_tl; /* Tail of the queue */
+ u32 ucrx_cq_id; /* queue ID */
+ u8 ucrx_cq_created; /* flag to help cleanup */
+ u8 ucrx_cq_pages; /* Num of pages allocacted by OSM */
+ BE_CQ_OBJECT ucrx_cq_obj; /* queue handle */
+ SA_PHYSICAL_ADDRESS ucrx_cq_pa; /* Physical address in LE order */
+ /*
+ * Broadcast RX completion queue - all broadcast and multicast ether
+ * completion statues from BE come here.
+ */
+ PETH_RX_COMPL bcrx_cq; /* VA of start of queue */
+ u32 bcrx_cq_len; /* # of entries */
+ u32 bcrx_cq_tl; /* Tail of the queue */
+ u32 bcrx_cq_id; /* Queue ID */
+ u8 bcrx_cq_created; /* flag to help cleanup */
+ u8 bcrx_cq_pages; /* Num of pages allocacted by OSM */
+ BE_CQ_OBJECT bcrx_cq_obj; /* queue handle */
+ SA_PHYSICAL_ADDRESS bcrx_cq_pa; /* Physical address in LE order */
+
+ BE_FUNCTION_OBJECT fn_obj; /* function object */
+ u32 rx_buf_size; /* Size of the RX buffers */
+ u8 mac_address[6]; /* MAC address */
+ /*
+ * OSM handle. OSM drivers can use this pointer to extend NetObject.
+ */
+ PVOID osm_netobj;
+ SA_SGL mb_sgl; /* SGL for MCC_MAIL_BOX */
+ PVOID mb_ptr; /* mailbox ptr to be freed */
+} BNI_NET_OBJECT, *PBNI_NET_OBJECT;
+
+/*
+ * convenience macros to access some NetObject members
+ */
+#define NET_FH(np) (&(np)->fn_obj)
+
+/*
+ * Functions to advance the head and tail in various rings.
+ */
+static INLINE void bni_adv_eq_tl(PBNI_NET_OBJECT pnob)
+{
+ pnob->event_q_tl = (pnob->event_q_tl + 1) % pnob->event_q_len;
+}
+
+static INLINE void bni_adv_txq_hd(PBNI_NET_OBJECT pnob)
+{
+ pnob->tx_q_hd = (pnob->tx_q_hd + 1) % pnob->tx_q_len;
+}
+
+static INLINE void bni_adv_txq_tl(PBNI_NET_OBJECT pnob)
+{
+ pnob->tx_q_tl = (pnob->tx_q_tl + 1) % pnob->tx_q_len;
+}
+
+static INLINE void bni_adv_txcq_tl(PBNI_NET_OBJECT pnob)
+{
+ pnob->tx_cq_tl = (pnob->tx_cq_tl + 1) % pnob->txcq_len;
+}
+
+static INLINE void bni_adv_rxq_hd(PBNI_NET_OBJECT pnob)
+{
+ pnob->rx_q_hd = (pnob->rx_q_hd + 1) % pnob->rx_q_len;
+}
+
+static INLINE void bni_adv_ucrxcq_tl(PBNI_NET_OBJECT pnob)
+{
+ pnob->ucrx_cq_tl = (pnob->ucrx_cq_tl + 1) % pnob->ucrx_cq_len;
+}
+
+static INLINE void bni_adv_bcrxcq_tl(PBNI_NET_OBJECT pnob)
+{
+ pnob->bcrx_cq_tl = (pnob->bcrx_cq_tl + 1) % pnob->bcrx_cq_len;
+}
+
+static INLINE BESTATUS bni_process_mcc_cmpl(BE_MCC_OBJECT *pMccObj)
+{
+ return (be_mcc_process_cq(pMccObj, 1));
+}
+
+/* forward declarations of function prototypes */
+BESTATUS bni_init(PBE_CHIP_OBJECT);
+BESTATUS bni_create_mcc_rings(PBNI_NET_OBJECT pnob);
+extern void bni_destroy_netobj(PBNI_NET_OBJECT, SA_DEV *);
+void bni_cleanup(PBE_CHIP_OBJECT chipobj);
+
+BESTATUS bni_create_netobj(PBNI_NET_OBJECT, SA_DEV_BAR_LOCATIONS *, u32,
+ SA_DEV *, PBE_CHIP_OBJECT);
+
+BESTATUS bni_tx_pkt(PBNI_NET_OBJECT, PBNI_TX_FRAG_LIST, u32,
+ u32, u32, void *, u32);
+void bni_start_tx(PBNI_NET_OBJECT, u32);
+
+u32 bni_post_rx_buffs(PBNI_NET_OBJECT, PSA_LIST_ENTRY);
+BESTATUS bni_change_eqd(PBNI_NET_OBJECT, u32);
+
+PETH_TX_COMPL bni_get_tx_cmpl(PBNI_NET_OBJECT);
+PETH_RX_COMPL bni_get_ucrx_cmpl(PBNI_NET_OBJECT);
+PETH_RX_COMPL bni_get_bcrx_cmpl(PBNI_NET_OBJECT);
+void bni_notify_cmpl(PBNI_NET_OBJECT, int, int, int);
+
+void bni_enable_intr(PBNI_NET_OBJECT);
+void bni_enable_eq_intr(PBNI_NET_OBJECT);
+void bni_disable_intr(PBNI_NET_OBJECT);
+void bni_disable_eq_intr(PBNI_NET_OBJECT);
+
+u32 bni_get_isr(PBNI_NET_OBJECT);
+
+PEQ_ENTRY bni_get_event(PBNI_NET_OBJECT);
+void bni_notify_event(PBNI_NET_OBJECT, int, int);
+
+BESTATUS bni_get_uc_mac_adrr(PBNI_NET_OBJECT, u8, u8, u8 Pd,
+ PSA_MAC_ADDRESS macAddr,
+ MCC_WRB_CQE_CALLBACK cbf, PVOID cbc);
+
+BESTATUS bni_set_uc_mac_adr(PBNI_NET_OBJECT, u8, u8, u8 Pd,
+ PSA_MAC_ADDRESS macAddr,
+ MCC_WRB_CQE_CALLBACK cbf, PVOID cbc);
+
+BESTATUS bni_set_mc_filter(PBNI_NET_OBJECT pnob, u32 NumMac,
+ BOOLEAN Promiscuous,
+ PSA_MAC_ADDRESS macAddr,
+ MCC_WRB_CQE_CALLBACK cbf, PVOID cbc);
+
+void bni_set_promisc(PBNI_NET_OBJECT pnob);
+void bni_reset_promisc(PBNI_NET_OBJECT pnob);
+BESTATUS bni_config_vlan(PBNI_NET_OBJECT pnob, u16 *VlanId,
+ u32 numVlans, MCC_WRB_CQE_CALLBACK cbf,
+ PVOID cbc, BOOLEAN Promiscuous);
+
+BESTATUS bni_get_stats(PBNI_NET_OBJECT pnob,
+ IOCTL_ETH_GET_STATISTICS *ioctl_va,
+ u64 ioctl_pa, MCC_WRB_CQE_CALLBACK cbf, PVOID cbc);
+
+BESTATUS bni_get_link_sts(PBNI_NET_OBJECT pnob,
+ PBE_LINK_STATUS be_link_sts,
+ MCC_WRB_CQE_CALLBACK cbf, PVOID cbc);
+BESTATUS bni_set_flow_ctll(PBE_FUNCTION_OBJECT pFnObj, boolean txfc_enable,
+ boolean rxfc_enable);
+BESTATUS bni_get_flow_ctl(PBE_FUNCTION_OBJECT pFnObj,
+ boolean *txfc_enable, boolean *rxfc_enable);
+u32 bni_process_rx_flush_cmpl(PBNI_NET_OBJECT pnob);
+
+#endif /* #ifndef _BNI_H_ */
diff -uprN orig/linux-2.6.24.2/drivers/net/benet/be_init.c benet/linux-2.6.24.2/drivers/net/benet/be_init.c
--- orig/linux-2.6.24.2/drivers/net/benet/be_init.c 1970-01-01 05:30:00.000000000 +0530
+++ benet/linux-2.6.24.2/drivers/net/benet/be_init.c 2008-02-14 15:29:34.088482208 +0530
@@ -0,0 +1,1426 @@
+/*
+ * 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
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or at your option any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, 5th Floor
+ * Boston, MA 02110-1301 USA
+ *
+ *
+ * The full GNU General Public License is included in this distribution
+ * in the file called GPL.
+ *
+ * Contact Information:
+ * linux-drivers@...verengines.com
+ *
+ * ServerEngines
+ * 209 N. Fair Oaks Ave
+ * Sunnyvale, CA 94085
+ *
+ */
+
+#include <linux/pci.h>
+#include <linux/etherdevice.h>
+
+#include "be.h"
+
+#define DRVR_VERSION "1.0.688"
+
+static struct pci_device_id be_device_id_table[] = {
+ {0x19a2, 0x0201, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+ {0, 0, 0, 0, 0, 0, 0}
+};
+
+MODULE_DEVICE_TABLE(pci, be_device_id_table);
+
+MODULE_VERSION(DRVR_VERSION);
+
+#define DRV_DESCRIPTION "ServerEngines BladeEngine Network Driver Version " \
+ DRVR_VERSION
+
+MODULE_DESCRIPTION(DRV_DESCRIPTION);
+MODULE_AUTHOR("ServerEngines");
+MODULE_LICENSE("GPL");
+
+unsigned int dbg_mask = (DL_ALWAYS | DL_ERR); /* always show error messages */
+unsigned int msix; /*By default */
+unsigned int ls_mss = (60 * 1024);
+
+unsigned int rxbuf_size = 2048; /*Size of Receive buffers posted */
+
+module_param(msix, uint, (0 | 1));
+module_param(dbg_mask, uint, (DL_ALWAYS | DL_ERR));
+module_param(rxbuf_size, uint, 0);
+
+MODULE_PARM_DESC(msix, "Use MSI-x interrupts");
+MODULE_PARM_DESC(dbg_mask, "Debug mask");
+MODULE_PARM_DESC(rxbuf_size, "Size of buffers to hold Rx data");
+
+static int be_probe(struct pci_dev *, const struct pci_device_id *);
+static void be_remove(struct pci_dev *);
+
+#ifdef CONFIG_PM
+static void be_pm_cleanup(PBE_ADAPTER, PBNI_NET_OBJECT,
+ struct net_device *);
+static void be_up(PBE_ADAPTER);
+static int be_resume(struct pci_dev *);
+
+static int be_suspend(struct pci_dev *, pm_message_t);
+#endif
+
+int be_mcc_init(PBE_ADAPTER adapter);
+void be_update_link_status(PBE_ADAPTER adapter);
+void be_link_status_async_callback(PVOID context, u32 event_code,
+ PVOID event);
+
+char be_drvr_ver[] = DRVR_VERSION;
+char be_fw_ver[32]; /* F/W version filled in by be_probe */
+
+char be_driver_name[] = "benet";
+
+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
+};
+
+/*
+ * 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
+
+PBE_ADAPTER be_adapter[MAX_BE_DEVICES];
+
+/*
+ * Intialize and register a network device for the NetObject.
+ */
+static int init_be_netdev(PBE_ADAPTER adapter, PBNI_NET_OBJECT pnob)
+{
+ struct net_device *netdev;
+ int ret = 0;
+ unsigned char *p;
+
+#ifdef CONFIG_PM
+ if (pm_resume) {
+ bni_set_uc_mac_adr(pnob, 0, 0, 0,
+ (PSA_MAC_ADDRESS) pnob->mac_address,
+ NULL, NULL);
+ return 0;
+ }
+#endif
+
+ /*
+ * Allocate netdev. No private data structure is
+ * allocated with netdev
+ */
+ netdev = alloc_etherdev(0);
+ if (netdev == NULL)
+ return -ENOMEM;
+
+ p = (u8 *) (pnob->mac_address);
+ /*
+ * Get MAC address from receive table
+ */
+ bni_get_uc_mac_adrr(pnob, 0, 0, OSM_NOB(pnob)->devno,
+ (PSA_MAC_ADDRESS) pnob->mac_address, NULL, NULL);
+
+ memcpy(netdev->dev_addr, pnob->mac_address, 6);
+ netdev->priv = pnob; /* We use the Net Object as private data */
+ netdev->init = &benet_probe;
+ /*
+ * Initialize to No Link. Link will be enabled during
+ * benet_open() or when physical Link is up
+ */
+ netif_carrier_off(netdev);
+ netif_stop_queue(netdev);
+
+ strcpy(netdev->name, "eth%d");
+
+ SET_NETDEV_DEV(netdev, &(adapter->pdev->dev));
+ ret = register_netdev(netdev);
+ if (ret != 0) {
+ TRACE(DL_INIT,
+ "Netdevice registration failed - Errno %d\n", ret);
+ free_netdev(netdev);
+ return (ret);
+ }
+ OSM_NOB(pnob)->os_handle = netdev;
+ return ret;
+}
+
+/* Initialize the pci_info structure for this function */
+static int init_pci_be_function(PBE_ADAPTER adapter, struct pci_dev *pdev)
+{
+ adapter->num_bars = 3;
+ /* CSR */
+ adapter->pci_bars[0].base_pa = pci_resource_start(pdev, 2);
+ adapter->pci_bars[0].base_va =
+ ioremap_nocache(adapter->pci_bars[0].base_pa,
+ pci_resource_len(pdev, 2));
+ if (adapter->pci_bars[0].base_va == NULL)
+ return -ENOMEM;
+ adapter->pci_bars[0].length = sizeof(BLADE_ENGINE_CSRMAP);
+ adapter->pci_bars[0].mem_or_io_mapped = SA_MEM_MAPPED;
+ adapter->pci_bars[0].type = SA_BAR_TYPE_CSR;
+
+ /* Door Bell */
+ adapter->pci_bars[1].base_pa = pci_resource_start(pdev, 4);
+ adapter->pci_bars[1].base_va =
+ ioremap_nocache(adapter->pci_bars[1].base_pa, (128 * 1024));
+ if (adapter->pci_bars[1].base_va == NULL) {
+ iounmap(adapter->pci_bars[0].base_va);
+ return -ENOMEM;
+ }
+ adapter->pci_bars[1].length = sizeof(PROTECTION_DOMAIN_DBMAP);
+ adapter->pci_bars[1].mem_or_io_mapped = SA_MEM_MAPPED;
+ adapter->pci_bars[1].type = SA_BAR_TYPE_PD;
+
+ /* PCI */
+ adapter->pci_bars[2].base_pa = pci_resource_start(pdev, 1);
+ adapter->pci_bars[2].length = pci_resource_len(pdev, 1);
+ adapter->pci_bars[2].base_va =
+ ioremap_nocache(adapter->pci_bars[2].base_pa,
+ adapter->pci_bars[2].length);
+ if (adapter->pci_bars[2].base_va == NULL) {
+ iounmap(adapter->pci_bars[0].base_va);
+ iounmap(adapter->pci_bars[1].base_va);
+ return -ENOMEM;
+ }
+ adapter->pci_bars[2].mem_or_io_mapped = SA_MEM_MAPPED;
+ adapter->pci_bars[2].type = SA_BAR_TYPE_PCI;
+
+ adapter->pdev = pdev;
+
+ return 0;
+}
+
+/*
+ * Enable MSIx and return 1 if successful. Else return 0
+ */
+int be_enable_msix(PBE_ADAPTER adapter)
+{
+ unsigned int i, ret;
+
+ if (!msix)
+ return 0;
+
+ adapter->msix_enabled = 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) {
+ adapter->msix_enabled = 0;
+ return 0;
+ }
+
+ return 1;
+}
+
+/*
+ * 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 or 4096. Defaulting to 2048\n");
+ rxbuf_size = 2048;
+ }
+
+ ret = pci_register_driver(&be_driver);
+ TRACE(DL_INIT, "pci_module_init returned %d", ret);
+
+ return ret;
+}
+
+module_init(be_init_module);
+
+/*
+ * be_exit_module - Driver Exit Cleanup Routine
+ */
+static void __exit be_exit_module(void)
+{
+ TRACE(DL_SHUTDOWN, "%s Entry\n", __FUNCTION__);
+
+ pci_unregister_driver(&be_driver);
+}
+
+module_exit(be_exit_module);
+
+/*
+ * Registers ISR for BE. Uses MSIx interrupt if configured and requested.
+ * If not, uses INTx interrupt. Returns 0 for success and -1 for filure.
+ */
+int register_isr(PBE_ADAPTER adapter, PBNI_NET_OBJECT pnob)
+{
+ int msix_intr, r;
+ struct net_device *netdev = OSM_NOB(pnob)->os_handle;
+ u32 msix_ret = 0;
+
+ netdev->irq = adapter->pdev->irq;
+
+ msix_intr = 0;
+ msix_ret = be_enable_msix(adapter);
+ if (msix_ret) {
+ /* Register MSIx Interrupt handler */
+ r = request_irq(adapter->msix_entries[0].vector,
+ (void *)be_int, IRQF_SHARED,
+ netdev->name, netdev);
+ if (r) {
+ printk(KERN_WARNING
+ "MSIX Request IRQ failed - Errno %d\n", r);
+ } else {
+ msix_intr = 1;
+ TRACE(DL_INIT, "MSIx IRQ %d for %s\n",
+ adapter->msix_entries[0].vector,
+ netdev->name);
+ }
+ }
+ if (msix_intr == 0) {
+ /* request legacy INTx interrupt */
+ r = request_irq(netdev->irq, (void *)be_int,
+ IRQF_SHARED, netdev->name, netdev);
+ if (r) {
+ printk(KERN_ERR
+ "INTx Request IRQ failed - Errno %d\n", r);
+ return (-1);
+ }
+ TRACE(DL_INIT, "BE: INTx IRQ %d for %s\n",
+ netdev->irq, netdev->name);
+ }
+ return (0);
+}
+
+/*
+ * 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;
+ PBE_ADAPTER adapter = NULL;
+ u32 r;
+ u32 adapt_num = 0;
+ IOCTL_COMMON_GET_FW_VERSION_RESPONSE_PAYLOAD ioctl_pload;
+ PBNI_NET_OBJECT pnob = NULL;
+
+ TRACE(DL_INFO, "Entering probe");
+ while (adapt_num < MAX_BE_DEVICES) {
+ if (!be_adapter[adapt_num])
+ break;
+ adapt_num++;
+ }
+
+ if (adapt_num == MAX_BE_DEVICES) {
+ printk(KERN_WARNING "Cannot support more than %d BE Adapters",
+ MAX_BE_DEVICES);
+ return -1;
+ }
+
+ status = pci_enable_device(pdev);
+ if (status) {
+ printk(KERN_ERR "pci_enable_device() for BE adapter %d failed",
+ adapt_num);
+ return status;
+ }
+
+ status = pci_request_regions(pdev, be_driver_name);
+ if (status)
+ return status;
+
+ pci_set_master(pdev);
+
+ adapter = (PBE_ADAPTER) kmalloc(sizeof(BE_ADAPTER), GFP_KERNEL);
+ if (adapter == NULL) {
+ TRACE(DL_INIT,
+ "Failed to alloc memory for adapter structure\n");
+ pci_release_regions(pdev);
+ goto err_ret;
+ }
+
+ memset(adapter, 0, sizeof(BE_ADAPTER));
+
+ be_adapter[adapt_num] = adapter;
+ /*
+ * Adapative interrupt coalescing limits in usecs.
+ * should be a multiple of 8.
+ */
+ adapter->enable_aic = 1;
+ adapter->max_eqd = MAX_EQD;
+ adapter->min_eqd = 0;
+ adapter->cur_eqd = 0; /* start with no EQ delay */
+ r = pci_set_dma_mask(pdev, DMA_64BIT_MASK);
+ if (!r) {
+ /* Device is DAC Capable. */
+ adapter->dma_64bit_cap = TRUE;
+ } else {
+ adapter->dma_64bit_cap = FALSE;
+ r = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
+ if (r) {
+ printk(KERN_ERR "Could not set PCI DMA Mask\n");
+ return r;
+ }
+ }
+
+ status = init_pci_be_function(adapter, pdev);
+ if (status < 0) {
+ printk(KERN_ERR "Failed to map PCI BARS\n");
+ status = -ENOMEM;
+ goto cleanup1;
+ }
+
+ (void)sa_trace_set_level(dbg_mask);
+
+ r = bni_init(&adapter->chip_object);
+ if (r != 0) {
+ printk("bni_init() failed - Error %d\n", r);
+ goto cleanup1;
+ }
+
+ /* Allocate Memory for getting the Link status */
+ adapter->be_link_sts = (PBE_LINK_STATUS)
+ kmalloc(sizeof(BE_LINK_STATUS), GFP_KERNEL);
+ if (adapter->be_link_sts == NULL) {
+ printk("Memory allocation for link status buffer failed\n");
+ goto cleanup1;
+ }
+ spin_lock_init(&adapter->txq_lock);
+
+ status = be_prepare_interface(adapter);
+ if (status < 0) {
+ goto cleanup1;
+ }
+ pnob = adapter->net_obj;
+
+ /* if the rx_frag size if 2K, one page is shared as two RX frags */
+ OSM_NOB(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), osm_process_sts,
+ (unsigned long)adapter);
+ adapter->tasklet_started = 1; /* indication to cleanup */
+ spin_lock_init(&(adapter->int_lock));
+
+ if (register_isr(adapter, pnob) != 0)
+ goto cleanup;
+
+ adapter->isr_registered = 1;
+ adapter->rx_csum = 1; /* enable RX checksum check */
+#ifdef RX_PKT_COALESCE
+ adapter->max_rx_coal = MAX_COALESCE_FRAGS;
+#endif
+
+ /* print the version numbers */
+ memset(&ioctl_pload, 0,
+ sizeof(IOCTL_COMMON_GET_FW_VERSION_RESPONSE_PAYLOAD));
+ printk(KERN_INFO "BladeEngine Driver version:%s. "
+ "Copyright ServerEngines, Corporation 2005 - 2008\n",
+ be_drvr_ver);
+ if (be_function_get_fw_version(&pnob->fn_obj, &ioctl_pload, NULL,
+ NULL) == BE_SUCCESS) {
+ adapter->be_fw_ver =
+ simple_strtoul(ioctl_pload.firmware_version_string + 4,
+ NULL, 10);
+ strncpy(be_fw_ver, ioctl_pload.firmware_version_string, 32);
+ printk(KERN_INFO "BladeEngine Firmware Version:%s\n",
+ ioctl_pload.firmware_version_string);
+ } else {
+ printk(KERN_WARNING "Unable to get BE Firmware Version\n");
+ }
+
+ sema_init(&adapter->get_eth_stat_sem, 0);
+
+ adapter->ctxt = (be_timer_ctxt_t *)
+ kmalloc(sizeof(be_timer_ctxt_t), GFP_KERNEL);
+
+ init_timer(&adapter->ctxt->get_stats_timer);
+ atomic_set(&adapter->ctxt->get_stat_flag, 0);
+ adapter->ctxt->get_stats_timer.function = &get_stats_timer_handler;
+
+ status = be_mcc_init(adapter);
+ if (status < 0) {
+ goto cleanup;
+ }
+
+ be_update_link_status(adapter);
+
+ /* Register async call back function to handle link status updates */
+ if (be_mcc_add_async_event_callback(&adapter->net_obj->mcc_q_obj,
+ be_link_status_async_callback,
+ (PVOID) adapter) != BE_SUCCESS) {
+ printk(KERN_WARNING "add_async_event_callback failed");
+ printk(KERN_WARNING
+ "Link status changes may not be reflected\n");
+ }
+
+ /* Enable ChipInterrupt and EQ Interrupt */
+ bni_enable_intr(adapter->net_obj);
+ enable_eq_intr(adapter->net_obj);
+ adapter->dev_state = BE_DEV_STATE_INIT;
+ return 0; /* successful return */
+
+cleanup1:
+ pci_release_regions(pdev);
+ pci_disable_device(pdev);
+ be_adapter[adapt_num] = NULL;
+ kfree(adapter);
+ goto err_ret;
+
+cleanup:
+ be_remove(pdev);
+
+err_ret:
+ printk(KERN_ERR "BladeEngine init failed\n");
+ return -ENOMEM;
+}
+
+/*
+ * Get the current link status and print the status on console
+ */
+void be_update_link_status(PBE_ADAPTER adapter)
+{
+ int status;
+ PBNI_NET_OBJECT pnob = adapter->net_obj;
+
+ status = bni_get_link_sts(pnob, adapter->be_link_sts, 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;
+
+ printk(KERN_INFO "Link Properties for %s:\n",
+ ((struct net_device *)(OSM_NOB(pnob)->os_handle))->name);
+ be_print_link_info(adapter->be_link_sts);
+ return;
+ }
+ printk(KERN_WARNING "Could not get link status for %s\n",
+ ((struct net_device *)(OSM_NOB(pnob)->os_handle))->name);
+ return;
+}
+
+/* This function handles async callback for link status */
+void be_link_status_async_callback(PVOID context, u32 event_code,
+ PVOID event)
+{
+ ASYNC_EVENT_LINK_STATE *link_status = (ASYNC_EVENT_LINK_STATE *) event;
+ PBE_ADAPTER adapter = (PBE_ADAPTER) context;
+ BOOLEAN link_enable = FALSE;
+ PBNI_NET_OBJECT pnob;
+ ASYNC_EVENT_TRAILER *async_trailer;
+ struct net_device *netdev;
+
+ if (event_code != ASYNC_EVENT_CODE_LINK_STATE) {
+ /* Not our event to handle */
+ return;
+ }
+ async_trailer = (ASYNC_EVENT_TRAILER *) ((u8 *) event +
+ sizeof(MCC_CQ_ENTRY) - sizeof (ASYNC_EVENT_TRAILER));
+
+ SA_ASSERT(async_trailer->event_code == ASYNC_EVENT_CODE_LINK_STATE);
+
+ pnob = adapter->net_obj;
+ SA_ASSERT(pnob);
+ netdev = (struct net_device *)OSM_NOB(pnob)->os_handle;
+ SA_ASSERT(netdev);
+
+ /* Determine if this event is a switch VLD or a physical link event */
+ if (async_trailer->event_type == NTWK_LINK_TYPE_VIRTUAL) {
+ adapter->be_stat.bes_link_change_virtual++;
+ if (adapter->be_link_sts->active_port !=
+ link_status->active_port) {
+ printk("Active port changed due to VLD on switch\n");
+ } else {
+ /* Link of atleast one of the ports changed */
+ printk("Link status update\n");
+ }
+
+ } else {
+ adapter->be_stat.bes_link_change_physical++;
+ if (adapter->be_link_sts->active_port !=
+ link_status->active_port) {
+ printk("Active port changed due to port link status"
+ " change\n");
+ } else {
+ /* Link of atleast one of the ports changed */
+ printk("Link status update\n");
+ }
+ }
+
+ /* Clear memory of adapter->be_link_sts */
+ memset(adapter->be_link_sts, 0, sizeof(adapter->be_link_sts));
+
+ if ((link_status->port0_link_status == ASYNC_EVENT_LINK_UP) ||
+ (link_status->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 (link_status->port0_link_status == ASYNC_EVENT_LINK_UP) {
+ adapter->port0_link_sts = BE_PORT_LINK_UP;
+ adapter->be_link_sts->mac0_duplex =
+ link_status->port0_duplex;
+ adapter->be_link_sts->mac0_speed =
+ link_status->port0_speed;
+ if (link_status->active_port == NTWK_PORT_A)
+ adapter->be_link_sts->active_port = 0;
+ } else
+ adapter->port0_link_sts = BE_PORT_LINK_DOWN;
+
+ if (link_status->port1_link_status == ASYNC_EVENT_LINK_UP) {
+ adapter->port1_link_sts = BE_PORT_LINK_UP;
+ adapter->be_link_sts->mac1_duplex =
+ link_status->port1_duplex;
+ adapter->be_link_sts->mac1_speed =
+ link_status->port1_speed;
+ if (link_status->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);
+ 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 */
+ printk(KERN_INFO "Both ports are down\n");
+
+ adapter->port0_link_sts = BE_PORT_LINK_DOWN;
+ adapter->port1_link_sts = BE_PORT_LINK_DOWN;
+
+ /* if this netdevice's carrier is not down, then indicate to stack */
+ if (netif_carrier_ok(netdev)) {
+ netif_carrier_off(netdev);
+ netif_stop_queue(netdev);
+ }
+ return;
+}
+
+/* Function to initialize MCC rings */
+int be_mcc_init(PBE_ADAPTER adapter)
+{
+ u32 n, r, m;
+ PBNI_NET_OBJECT pnob;
+
+ pnob = adapter->net_obj;
+ if (!pm_resume) {
+ be_init_procfs(adapter);
+ /*
+ * 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;
+ n = pnob->mcc_q_len * sizeof(MCC_WRB);
+ n = MAX(n, PAGE_SIZE);
+ /* Get number of pages */
+ m = (n + (PAGE_SIZE - 1)) / (PAGE_SIZE);
+ pnob->mcc_q =
+ (PMCC_WRB) __get_free_pages(GFP_KERNEL, sa_log2(m));
+ if (pnob->mcc_q == NULL)
+ goto cleanup;
+ pnob->mcc_q_pages = m;
+ pnob->mcc_q_pa = virt_to_phys(pnob->mcc_q);
+ pnob->mcc_q_pa = cpu_to_le64(pnob->mcc_q_pa);
+ /*
+ * space for MCC WRB context
+ */
+ pnob->mcc_wrb_ctxtLen = MCC_Q_LEN;
+ n = pnob->mcc_wrb_ctxtLen * sizeof(BE_MCC_WRB_CONTEXT);
+ n = MAX(n, PAGE_SIZE); /* Need to allocate alteast one page */
+ /* Get number of pages */
+ m = (n + (PAGE_SIZE - 1)) / (PAGE_SIZE);
+ pnob->mcc_wrb_ctxt =
+ (PVOID) __get_free_pages(GFP_KERNEL, sa_log2(m));
+ if (pnob->mcc_wrb_ctxt == NULL)
+ goto cleanup;
+ pnob->mcc_wrb_ctxt_pages = m;
+ /*
+ * Space for MCC compl. ring
+ */
+ pnob->mcc_cq_len = MCC_CQ_LEN;
+ n = pnob->mcc_cq_len * sizeof(MCC_CQ_ENTRY);
+ n = MAX(n, PAGE_SIZE); /* Need to allocate alteast one page */
+ /* Get number of pages */
+ m = (n + (PAGE_SIZE - 1)) / (PAGE_SIZE);
+ pnob->mcc_cq =
+ (PMCC_CQ_ENTRY) __get_free_pages(GFP_KERNEL,
+ sa_log2(m));
+ if (pnob->mcc_cq == NULL)
+ goto cleanup;
+ pnob->mcc_cq_pa = virt_to_phys(pnob->mcc_cq);
+ pnob->mcc_cq_pa = cpu_to_le64(pnob->mcc_cq_pa);
+ pnob->mcc_cq_pages = m;
+
+ }
+ memset(pnob->mcc_q, 0, pnob->mcc_q_pages * PAGE_SIZE);
+ pnob->mcc_q_hd = 0;
+
+ memset(pnob->mcc_wrb_ctxt, 0,
+ pnob->mcc_wrb_ctxt_pages * PAGE_SIZE);
+
+ memset(pnob->mcc_cq, 0, pnob->mcc_cq_pages * PAGE_SIZE);
+ pnob->mcc_cq_tl = 0;
+
+ r = bni_create_mcc_rings(adapter->net_obj);
+ if (r != BE_SUCCESS)
+ goto cleanup;
+
+ return 0;
+cleanup:
+ TRACE(DL_INIT, "Failed to create MCC rings\n");
+ return -ENOMEM;
+
+}
+
+static void be_remove(struct pci_dev *pdev)
+{
+ PBNI_NET_OBJECT pnob = NULL;
+ PBE_ADAPTER adapter = NULL;
+ int adapt_num = 0;
+ int i;
+
+ while (adapt_num < MAX_BE_DEVICES) {
+ if ((be_adapter[adapt_num]) &&
+ (be_adapter[adapt_num]->pdev == pdev)) {
+ adapter = be_adapter[adapt_num];
+ pnob = (BNI_NET_OBJECT *) adapter->net_obj;
+ break;
+ }
+ adapt_num++;
+ }
+
+ SA_ASSERT(adapter);
+
+ flush_scheduled_work();
+
+ /* Unregister async call back function for link status updates */
+ if (be_mcc_add_async_event_callback(&pnob->mcc_q_obj,
+ NULL, NULL) != BE_SUCCESS)
+ printk(KERN_WARNING "Unregister async callback for link "
+ "status updates failed.\n");
+
+ cleanup_netobject(adapter->net_obj);
+
+ be_cleanup_procfs(adapter);
+
+ bni_cleanup(&adapter->chip_object);
+
+ for (i = 0; i < adapter->num_bars; i++) {
+ if (adapter->pci_bars[i].base_va) {
+ iounmap(adapter->pci_bars[i].base_va);
+ }
+ }
+
+ pci_release_regions(adapter->pdev);
+ pci_disable_device(adapter->pdev);
+
+ /* Free Link status structure */
+ if (adapter->be_link_sts) {
+ kfree(adapter->be_link_sts);
+ }
+
+ if (adapter->eth_statsp) {
+ kfree(adapter->eth_statsp);
+ }
+
+ del_timer_sync(&adapter->ctxt->get_stats_timer);
+
+ if (adapter->ctxt) {
+ kfree(adapter->ctxt);
+ }
+
+ be_adapter[adapt_num] = NULL;
+ kfree(adapter);
+}
+
+static int be_suspend(struct pci_dev *pdev, pm_message_t state)
+{
+#ifdef CONFIG_PM
+ struct net_device *netdev = NULL;
+ PBNI_NET_OBJECT pnob = NULL;
+ PBE_ADAPTER adapter = NULL;
+
+ int adapt_num = 0;
+ while (adapt_num < MAX_BE_DEVICES) {
+ if (be_adapter[adapt_num] &&
+ (be_adapter[adapt_num]->pdev == pdev)) {
+ adapter = be_adapter[adapt_num];
+ pnob = (BNI_NET_OBJECT *) adapter->netdevp->priv;
+ netdev = adapter->netdevp;
+ netif_device_detach(netdev);
+ break;
+ }
+ adapt_num++;
+ }
+ SA_ASSERT(adapter);
+
+ 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));
+#endif
+ return 0;
+}
+
+static int be_resume(struct pci_dev *pdev)
+{
+#ifdef CONFIG_PM
+ int status = 0;
+ struct net_device *netdev = NULL;
+ PBNI_NET_OBJECT pnob = NULL;
+ PBE_ADAPTER adapter = NULL;
+ u32 adapt_num = 0;
+
+ pm_resume = 1;
+ while (adapt_num < MAX_BE_DEVICES) {
+ if (be_adapter[adapt_num] &&
+ (be_adapter[adapt_num]->pdev == pdev)) {
+ adapter = be_adapter[adapt_num];
+ pnob = (BNI_NET_OBJECT *) adapter->netdevp->priv;
+ netdev = adapter->netdevp;
+ netif_device_detach(netdev);
+ break;
+ }
+ adapt_num++;
+ }
+ SA_ASSERT(adapter);
+
+ 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)) {
+ status = be_prepare_interface(adapter);
+
+ if (status < 0) {
+ 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
+ */
+ if (be_mcc_add_async_event_callback(
+ &adapter->net_obj->mcc_q_obj,
+ be_link_status_async_callback,
+ (PVOID) adapter) != BE_SUCCESS) {
+ printk(KERN_WARNING "add_async_event_callback failed");
+ printk(KERN_WARNING
+ "Link status changes may not be reflected\n");
+ }
+ bni_enable_intr(pnob);
+ enable_eq_intr(pnob);
+ be_up(adapter);
+ }
+ netif_device_attach(netdev);
+ pm_resume = 0;
+#endif
+ return 0;
+
+}
+
+#ifdef CONFIG_PM
+static void be_pm_cleanup(PBE_ADAPTER adapter,
+ PBNI_NET_OBJECT pnob, struct net_device *netdev)
+{
+ u32 i;
+
+ netif_carrier_off(netdev);
+ netif_stop_queue(netdev);
+
+ wait_nic_tx_cmpl(pnob);
+ disable_eq_intr(pnob);
+ if (adapter->tasklet_started) {
+ tasklet_kill(&(adapter->sts_handler));
+ adapter->isr_registered = 0;
+ }
+ if (adapter->isr_registered) {
+ free_irq(netdev->irq, netdev);
+ adapter->tasklet_started = 0;
+ }
+ /* Disable chip interrupt */
+ bni_disable_intr(pnob);
+ bni_destroy_netobj(pnob, &adapter->sa_device);
+
+ if (pnob->rx_ctxt) {
+ BE_RX_PAGE_INFO *rx_page_info;
+
+ /*
+ * go through RX context array and free
+ * data buffs
+ */
+ for (i = 0; i < pnob->rx_q_len; i++) {
+ rx_page_info = &(OSM_NOB(pnob)->rx_page_info[i]);
+ if ((OSM_NOB(pnob)->rx_pg_shared == FALSE) ||
+ (rx_page_info->page_offset))
+ pci_unmap_page(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(BE_RX_PAGE_INFO));
+ }
+ OSM_NOB(pnob)->rx_pg_info_hd = 0;
+ }
+
+}
+
+static void be_up(PBE_ADAPTER adapter)
+{
+ PBNI_NET_OBJECT pnob = adapter->net_obj;
+
+ if (OSM_NOB(pnob)->num_vlans != 0)
+ bni_config_vlan(pnob, OSM_NOB(pnob)->vlan_tag,
+ OSM_NOB(pnob)->num_vlans, NULL, NULL, 0);
+
+}
+#endif
+
+static int be_setup_tx_res(PBNI_NET_OBJECT NetObject)
+{
+ int n;
+
+ n = NetObject->tx_q_len * sizeof(PVOID *);
+ if (!pm_resume) {
+ NetObject->tx_ctxt = (PVOID *) kmalloc(n, GFP_KERNEL);
+
+ if (NetObject->tx_ctxt == NULL) {
+ TRACE(DL_INIT,
+ "Failed to alloc memory for tx_ctxt\n");
+ return -1;
+ }
+ }
+ memset(NetObject->tx_ctxt, 0, n);
+ return 0;
+}
+
+static int be_setup_rx_res(PBNI_NET_OBJECT NetObject)
+{
+ int n;
+
+ if (!pm_resume) {
+ n = (NetObject->rx_q_len * sizeof(PVOID));
+ NetObject->rx_ctxt = kmalloc(n, GFP_KERNEL);
+ if (NetObject->rx_ctxt == NULL) {
+ TRACE(DL_INIT, "Failed to alloc memory for rx_ctxt\n");
+ return -1;
+ }
+
+ n = (NetObject->rx_q_len * sizeof(BE_RX_PAGE_INFO));
+ OSM_NOB(NetObject)->rx_page_info = kmalloc(n, GFP_KERNEL);
+ if (OSM_NOB(NetObject)->rx_page_info == NULL) {
+ TRACE(DL_INIT,
+ "Failed to alloc memory for receive page info\n");
+ kfree(NetObject->rx_ctxt);
+ return -1;
+ }
+ }
+
+ memset(NetObject->rx_ctxt, 0, NetObject->rx_q_len * sizeof(PVOID));
+ memset(OSM_NOB(NetObject)->rx_page_info, 0,
+ NetObject->rx_q_len * sizeof(BE_RX_PAGE_INFO));
+ OSM_NOB(NetObject)->rx_pg_info_hd = 0;
+ NetObject->rx_q_hd = 0;
+ NetObject->rx_q_posted = 0;
+ /* post ETH RX buffers */
+ post_eth_rx_buffs(NetObject);
+
+ return 0;
+}
+
+/*
+ * free all resources associated with a NetObject
+ * Called at the time of module cleanup as well a any error during
+ * module init. Some resources may be partially allocated in a NetObj.
+ */
+void cleanup_netobject(PBNI_NET_OBJECT pnob)
+{
+ struct net_device *netdev;
+ PBE_ADAPTER adapter;
+ struct sk_buff *skb;
+ int i;
+
+ SA_ASSERT(pnob);
+ netdev = (struct net_device *)OSM_NOB(pnob)->os_handle;
+ SA_ASSERT(netdev);
+ adapter = (PBE_ADAPTER) OSM_NOB(pnob)->adapter;
+ SA_ASSERT(adapter);
+
+ /* Only if this netdev is up */
+ if (netif_running(netdev)) {
+ /*
+ * Let us stop the dev queue for the
+ * interface associated with this netobj.
+ */
+ netif_stop_queue(netdev);
+
+ /* Wait until no more pending transmits */
+ wait_nic_tx_cmpl(pnob);
+
+ /* Disable this EQ's interrupt */
+ disable_eq_intr(pnob);
+ }
+
+ if ((adapter->isr_registered) & (adapter->msix_enabled))
+ free_irq(adapter->msix_entries[0].vector, netdev);
+ else if ((adapter->isr_registered) & !(adapter->msix_enabled))
+ free_irq(netdev->irq, netdev);
+
+ adapter->isr_registered = 0;
+ if (adapter->msix_enabled) {
+ pci_disable_msix(adapter->pdev);
+ adapter->msix_enabled = 0;
+ }
+ if (adapter->tasklet_started) {
+ tasklet_kill(&(adapter->sts_handler));
+ adapter->tasklet_started = 0;
+ }
+ /* Disable chip interrupt */
+ bni_disable_intr(pnob);
+
+ unregister_netdev(netdev);
+ /* memory associted with netdev is freed by OS */
+
+ /* Destroy Net Object */
+ bni_destroy_netobj(pnob, &adapter->sa_device);
+
+ adapter->net_obj = NULL;
+ adapter->netdevp = NULL;
+
+ /* free all the memory allocated for the queues */
+
+ if (pnob->mcc_q) {
+ free_pages((unsigned long)pnob->mcc_q,
+ sa_log2(pnob->mcc_q_pages));
+ }
+
+ if (pnob->mcc_wrb_ctxt) {
+ free_pages((unsigned long)pnob->mcc_wrb_ctxt,
+ sa_log2(pnob->mcc_wrb_ctxt_pages));
+ }
+
+ if (pnob->mcc_cq) {
+ free_pages((unsigned long)pnob->mcc_cq,
+ sa_log2(pnob->mcc_cq_pages));
+ }
+
+ if (pnob->event_q) {
+ free_pages((unsigned long)pnob->event_q,
+ sa_log2(pnob->event_q_pages));
+ }
+
+ if (pnob->tx_cq) {
+ free_pages((unsigned long)pnob->tx_cq,
+ sa_log2(pnob->tx_cq_pages));
+ }
+
+ if (pnob->tx_q) {
+ free_pages((unsigned long)pnob->tx_q,
+ sa_log2(pnob->tx_q_pages));
+ }
+
+ if (pnob->bcrx_cq) {
+ free_pages((unsigned long)pnob->bcrx_cq,
+ sa_log2(pnob->bcrx_cq_pages));
+ }
+
+ if (pnob->rx_q) {
+ free_pages((unsigned long)pnob->rx_q,
+ sa_log2(pnob->rx_q_pages));
+ }
+
+ if (pnob->ucrx_cq) {
+ free_pages((unsigned long)pnob->ucrx_cq,
+ sa_log2(pnob->ucrx_cq_pages));
+ }
+
+ /* free all allocated memory stored in the net object */
+ if (pnob->rx_ctxt) {
+ BE_RX_PAGE_INFO *rx_page_info;
+ /*
+ * go through RX context array and free data buffs
+ */
+ for (i = 0; i < pnob->rx_q_len; i++) {
+ rx_page_info = &(OSM_NOB(pnob)->rx_page_info[i]);
+ if ((OSM_NOB(pnob)->rx_pg_shared == FALSE) ||
+ (rx_page_info->page_offset)) {
+ pci_unmap_page(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(BE_RX_PAGE_INFO));
+ }
+ OSM_NOB(pnob)->rx_pg_info_hd = 0;
+ kfree(OSM_NOB(pnob)->rx_page_info);
+ kfree(pnob->rx_ctxt);
+ }
+
+ if (pnob->tx_ctxt) {
+ for (i = 0; i < pnob->tx_q_len; i++) {
+ skb = (struct sk_buff *)pnob->tx_ctxt[i];
+ if (skb) {
+ kfree_skb(skb);
+ }
+ }
+ kfree(pnob->tx_ctxt);
+ }
+
+ if (pnob->mb_ptr) {
+ kfree(pnob->mb_ptr);
+ }
+
+ if (OSM_NOB(pnob)) {
+ kfree(OSM_NOB(pnob));
+ }
+
+ /* finally, free the net object itself */
+ kfree(pnob);
+
+}
+
+/*
+ * this function creates a NetObject with a set of Eth rings.
+ */
+int be_prepare_interface(PBE_ADAPTER adapter)
+{
+ struct net_device *netdev = NULL;
+ PBNI_NET_OBJECT pnob = NULL;
+ SA_DEV_BAR_LOCATIONS pci_bars[3];
+ int status;
+ u32 n, m;
+ PVOID p;
+
+ if (!pm_resume) {
+ /*Normal Mode */
+ memcpy(pci_bars, adapter->pci_bars,
+ sizeof(adapter->pci_bars));
+
+ pnob = (PBNI_NET_OBJECT)
+ kmalloc(sizeof(BNI_NET_OBJECT), GFP_KERNEL);
+
+ if (pnob == NULL) {
+ TRACE(DL_INIT,
+ "Failed to alloc memory for NetObject\n");
+ goto err_ret1;
+ }
+ memset(pnob, 0, sizeof(BNI_NET_OBJECT));
+ TRACE(DL_INIT, "Done with net obj alloc\n");
+
+ pnob->osm_netobj = (linux_net_object_t *)
+ kmalloc(sizeof(linux_net_object_t), GFP_KERNEL);
+ if (pnob->osm_netobj == NULL) {
+ TRACE(DL_INIT,
+ "Failed to alloc memory OSM NetObject\n");
+ kfree(pnob);
+ goto err_ret1;
+ }
+ memset(pnob->osm_netobj, 0, sizeof(linux_net_object_t));
+
+ OSM_NOB(pnob)->devno = 0;
+ OSM_NOB(pnob)->adapter = adapter;
+
+ /* Mail box sgl */
+ pnob->mb_sgl.length = sizeof(MCC_MAILBOX);
+ p = kmalloc(pnob->mb_sgl.length + 16, GFP_KERNEL);
+ if (p == NULL) {
+ TRACE(DL_INIT,
+ "Failed to alloc mem for MCC_MAILBOX\n");
+ goto err_ret1;
+ }
+ /* Mailbox pointer needs to be 16 byte aligned */
+ pnob->mb_ptr = p;
+ p = (PVOID) ((unsigned long)(p + 15) & ~0xf);
+ pnob->mb_sgl.va = (void *)p;
+ pnob->mb_sgl.pa = virt_to_phys(p);
+ pnob->mb_sgl.pa = cpu_to_le64(pnob->mb_sgl.pa);
+ /*
+ * Event queue
+ */
+ pnob->event_q_len = EVENT_Q_LEN;
+ n = pnob->event_q_len * sizeof(EQ_ENTRY);
+ n = MAX(n, (2 * PAGE_SIZE));
+ /* Get number of pages */
+ m = (n + (PAGE_SIZE - 1)) / (PAGE_SIZE);
+ pnob->event_q = (PEQ_ENTRY)
+ __get_free_pages(GFP_KERNEL, sa_log2(m));
+ if (pnob->event_q == NULL)
+ goto err_ret1;
+ pnob->event_q_pa = virt_to_phys(pnob->event_q);
+ pnob->event_q_pa = cpu_to_le64(pnob->event_q_pa);
+ pnob->event_q_pages = m;
+ /*
+ * Eth TX queue
+ */
+ pnob->tx_q_len = ETH_TXQ_LEN;
+ pnob->tx_q_port = 0; /* No port binding */
+ n = pnob->tx_q_len * sizeof(ETH_WRB);
+ n = MAX(n, PAGE_SIZE); /* Need to allocate alteast one page */
+ /* Get number of pages */
+ m = (n + (PAGE_SIZE - 1)) / (PAGE_SIZE);
+ pnob->tx_q = (PETH_WRB)
+ __get_free_pages(GFP_KERNEL, sa_log2(m));
+ if (pnob->tx_q == NULL)
+ goto err_ret1;
+ pnob->tx_q_pa = virt_to_phys(pnob->tx_q);
+ pnob->tx_q_pa = cpu_to_le64(pnob->tx_q_pa);
+ pnob->tx_q_pages = m;
+ /*
+ * Eth TX Compl queue
+ */
+ pnob->txcq_len = ETH_TXCQ_LEN;
+ n = pnob->txcq_len * sizeof(ETH_TX_COMPL);
+ n = MAX(n, PAGE_SIZE); /* Need to allocate alteast one page */
+ /* Get number of pages */
+ m = (n + (PAGE_SIZE - 1)) / (PAGE_SIZE);
+ pnob->tx_cq = (PETH_TX_COMPL)
+ __get_free_pages(GFP_KERNEL, sa_log2(m));
+ if (pnob->tx_cq == NULL)
+ goto err_ret1;
+ pnob->tx_cq_pa = virt_to_phys(pnob->tx_cq);
+ pnob->tx_cq_pa = cpu_to_le64(pnob->tx_cq_pa);
+ pnob->tx_cq_pages = m;
+ /*
+ * Eth RX queue
+ */
+ pnob->rx_q_len = ETH_RXQ_LEN;
+ n = pnob->rx_q_len * sizeof(ETH_RX_D);
+ n = MAX(n, PAGE_SIZE); /* Need to allocate alteast one page */
+ /* Get number of pages */
+ m = (n + (PAGE_SIZE - 1)) / (PAGE_SIZE);
+ pnob->rx_q = (PETH_RX_D)
+ __get_free_pages(GFP_KERNEL, sa_log2(m));
+ if (pnob->rx_q == NULL)
+ goto err_ret1;
+ pnob->rx_q_pa = virt_to_phys(pnob->rx_q);
+ pnob->rx_q_pa = cpu_to_le64(pnob->rx_q_pa);
+ pnob->rx_q_pages = m;
+ /*
+ * Eth Unicast RX Compl queue
+ */
+ pnob->ucrx_cq_len = ETH_UC_RXCQ_LEN;
+ n = pnob->ucrx_cq_len * sizeof(ETH_RX_COMPL);
+ n = MAX(n, PAGE_SIZE); /* Need to allocate alteast one page */
+ /* Get number of pages */
+ m = (n + (PAGE_SIZE - 1)) / (PAGE_SIZE);
+ pnob->ucrx_cq = (PETH_RX_COMPL)
+ __get_free_pages(GFP_KERNEL, sa_log2(m));
+ if (pnob->ucrx_cq == NULL)
+ goto err_ret1;
+ pnob->ucrx_cq_pa = virt_to_phys(pnob->ucrx_cq);
+ pnob->ucrx_cq_pa = cpu_to_le64(pnob->ucrx_cq_pa);
+ pnob->ucrx_cq_pages = m;
+ /*
+ * Eth Broadcast RX Compl queue
+ */
+ pnob->bcrx_cq_len = ETH_BC_RXCQ_LEN;
+ n = pnob->bcrx_cq_len * sizeof(ETH_RX_COMPL);
+ n = MAX(n, PAGE_SIZE);
+ /* Get number of pages */
+ m = (n + (PAGE_SIZE - 1)) / (PAGE_SIZE);
+ pnob->bcrx_cq = (PETH_RX_COMPL)
+ __get_free_pages(GFP_KERNEL, sa_log2(m));
+ if (pnob->bcrx_cq == NULL)
+ goto err_ret1;
+ pnob->bcrx_cq_pa = virt_to_phys(pnob->bcrx_cq);
+ pnob->bcrx_cq_pa = cpu_to_le64(pnob->bcrx_cq_pa);
+ pnob->bcrx_cq_pages = m;
+
+ /* Allocate DMA'ble Memory for IOCTL_ETH_GET_STATISTICS */
+ adapter->eth_statsp = (IOCTL_ETH_GET_STATISTICS *)
+ kmalloc(sizeof(IOCTL_ETH_GET_STATISTICS), GFP_KERNEL);
+ if (adapter->eth_statsp == NULL) {
+ TRACE(DL_INIT,
+ "Failed to alloc memory for Eth stats\n");
+ goto err_ret1;
+ }
+ pnob->rx_buf_size = rxbuf_size;
+ /*
+ * Set dev close to be TRUE. This will be enabled on dev open
+ */
+ adapter->dev_state = BE_DEV_STATE_NONE;
+ } else {
+ pnob = adapter->net_obj;
+ memcpy(pci_bars, adapter->pci_bars,
+ sizeof(adapter->pci_bars));
+ }
+
+ memset(pnob->event_q, 0, pnob->event_q_pages * PAGE_SIZE);
+ pnob->event_q_tl = 0;
+
+ memset(pnob->tx_q, 0, pnob->tx_q_pages * PAGE_SIZE);
+ pnob->tx_q_hd = 0;
+ pnob->tx_q_tl = 0;
+
+ memset(pnob->tx_cq, 0, pnob->tx_cq_pages * PAGE_SIZE);
+ pnob->tx_cq_tl = 0;
+
+ memset(pnob->rx_q, 0, pnob->rx_q_pages * PAGE_SIZE);
+
+ memset(pnob->ucrx_cq, 0, pnob->ucrx_cq_pages * PAGE_SIZE);
+ pnob->ucrx_cq_tl = 0;
+
+ memset(pnob->bcrx_cq, 0, pnob->bcrx_cq_pages * PAGE_SIZE);
+ pnob->bcrx_cq_tl = 0;
+ n = bni_create_netobj(pnob, pci_bars, adapter->num_bars,
+ &adapter->sa_device,
+ &adapter->chip_object);
+ if (n != BE_SUCCESS) {
+ TRACE(DL_ERROR, "bni_create_netobj failed - returned %x", n);
+ goto err_ret1;
+ }
+ TRACE(DL_INIT, "Creation of NetObject Done");
+
+ status = init_be_netdev(adapter, pnob);
+ if (status < 0)
+ goto err_ret;
+ netdev = OSM_NOB(pnob)->os_handle;
+
+#ifdef CONFIG_BENET_NAPI
+ netif_napi_add(netdev, &OSM_NOB(pnob)->napi, be_poll, 64);
+ OSM_NOB(pnob)->rx_sched = FALSE;
+ spin_lock_init(&OSM_NOB(pnob)->rx_lock);
+#endif
+
+ if (be_setup_tx_res(pnob))
+ goto err_ret;
+ if (be_setup_rx_res(pnob))
+ goto err_ret;
+
+ if (!pm_resume) {
+ adapter->netdevp = OSM_NOB(pnob)->os_handle;
+ adapter->net_obj = pnob;
+ }
+ return 0;
+
+err_ret:
+ cleanup_netobject(pnob);
+
+err_ret1:
+ printk(KERN_ERR "Interface initialization failed\n");
+ return -1;
+}
+
+void enable_eq_intr(PBNI_NET_OBJECT pnob)
+{
+ bni_enable_eq_intr(pnob);
+}
+
+void disable_eq_intr(PBNI_NET_OBJECT pnob)
+{
+ bni_disable_eq_intr(pnob);
+}
+
+/* Wait until no more pending transmits */
+void wait_nic_tx_cmpl(PBNI_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");
+ }
+}
diff -uprN orig/linux-2.6.24.2/drivers/net/benet/be_netif.c benet/linux-2.6.24.2/drivers/net/benet/be_netif.c
--- orig/linux-2.6.24.2/drivers/net/benet/be_netif.c 1970-01-01 05:30:00.000000000 +0530
+++ benet/linux-2.6.24.2/drivers/net/benet/be_netif.c 2008-02-14 15:31:33.420341008 +0530
@@ -0,0 +1,600 @@
+/*
+ * 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
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or at your option any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, 5th Floor
+ * Boston, MA 02110-1301 USA
+ *
+ *
+ * The full GNU General Public License is included in this distribution
+ * in the file called GPL.
+ *
+ * Contact Information:
+ * linux-drivers@...verengines.com
+ *
+ * ServerEngines
+ * 209 N. Fair Oaks Ave
+ * Sunnyvale, CA 94085
+ *
+ */
+/*
+ * be_netif.c
+ *
+ * This file contains various entry points of drivers seen by tcp/ip stack.
+ */
+
+#include <linux/pci.h>
+#include "be.h"
+#include <linux/ip.h>
+
+extern unsigned int ls_mss;
+
+unsigned int pm_resume;
+
+/* Strings to print Link properties */
+char *link_speed[] = {
+ "Invalid link Speed Value",
+ "10 Mbps",
+ "100 Mbps",
+ "1 Gbps",
+ "10 Gbps"
+};
+
+char *link_duplex[] = {
+ "Invalid Duplex Value",
+ "Half Duplex",
+ "Full Duplex"
+};
+
+#ifdef BE_POLL_MODE
+struct net_device *irq_netdev;
+#endif
+
+int benet_xmit(struct sk_buff *skb, struct net_device *netdev);
+int benet_set_mac_addr(struct net_device *netdev, void *p);
+
+void be_print_link_info(PBE_LINK_STATUS lnk_status)
+{
+ printk("PortNo 0:");
+ if (lnk_status->mac0_speed && lnk_status->mac0_duplex) {
+ /* Port is up and running */
+ if (lnk_status->mac0_speed < 5)
+ printk(" Link Speed: %s,",
+ link_speed[lnk_status->mac0_speed]);
+ else
+ printk(" %s,", link_speed[0]);
+
+ if (lnk_status->mac0_duplex < 3)
+ printk(" %s",
+ link_duplex[lnk_status->mac0_duplex]);
+ else
+ printk(" %s", link_duplex[0]);
+
+ if (lnk_status->active_port == 0)
+ printk("(active)\n");
+ else
+ printk("\n");
+ } else
+ printk(" Down \n");
+
+ printk("PortNo 1:");
+ if (lnk_status->mac1_speed && lnk_status->mac1_duplex) {
+ /* Port is up and running */
+ if (lnk_status->mac1_speed < 5)
+ printk(" Link Speed: %s,",
+ link_speed[lnk_status->mac1_speed]);
+ else
+ printk(" %s,", link_speed[0]);
+
+ if (lnk_status->mac1_duplex < 3)
+ printk(" %s",
+ link_duplex[lnk_status->mac1_duplex]);
+ else
+ printk(" %s", link_duplex[0]);
+
+ if (lnk_status->active_port == 1)
+ printk("(active)\n");
+ else
+ printk("\n");
+ } else
+ printk(" Down \n");
+
+ return;
+}
+
+int benet_open(struct net_device *netdev)
+{
+ PBNI_NET_OBJECT pnob = (BNI_NET_OBJECT *) netdev->priv;
+ PBE_ADAPTER adapter = OSM_NOB(pnob)->adapter;
+
+ TRACE(DL_INIT, "entered-benet_open()");
+
+ if (adapter->dev_state < BE_DEV_STATE_INIT)
+ return -EAGAIN;
+
+ be_update_link_status(adapter);
+
+ /*
+ * Set carrier on only if Physical Link up
+ * Either of the port link status up signifies this
+ */
+ if ((adapter->port0_link_sts == BE_PORT_LINK_UP) ||
+ (adapter->port1_link_sts == BE_PORT_LINK_UP)) {
+ netif_start_queue(netdev);
+ netif_carrier_on(netdev);
+ }
+
+ enable_eq_intr(pnob);
+ adapter->dev_state = BE_DEV_STATE_OPEN;
+
+#ifdef CONFIG_BENET_NAPI
+ napi_enable(&OSM_NOB(pnob)->napi);
+#endif
+ return 0;
+}
+
+int benet_close(struct net_device *netdev)
+{
+ PBNI_NET_OBJECT pnob = (BNI_NET_OBJECT *) netdev->priv;
+ PBE_ADAPTER adapter = OSM_NOB(pnob)->adapter;
+
+ /* Stop Transmitting */
+ netif_stop_queue(netdev);
+
+ synchronize_irq(netdev->irq);
+
+ /* Wait until no more pending transmits */
+ wait_nic_tx_cmpl(pnob);
+
+ adapter->dev_state = BE_DEV_STATE_INIT;
+
+ netif_carrier_off(netdev);
+
+ adapter->port0_link_sts = BE_PORT_LINK_DOWN;
+ adapter->port1_link_sts = BE_PORT_LINK_DOWN;
+
+#ifdef CONFIG_BENET_NAPI
+ napi_disable(&OSM_NOB(pnob)->napi);
+#endif
+ return 0;
+}
+
+int benet_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
+{
+ TRACE(DL_INIT, "entered benet_ioctl()");
+
+ switch (cmd) {
+ case SIOCETHTOOL:
+ return be_ethtool_ioctl(dev, ifr);
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+/*
+ * Setting a Mac Address for BE
+ * Takes netdev and a void pointer as arguments.
+ * The pointer holds the new addres to be used.
+ */
+int benet_set_mac_addr(struct net_device *netdev, void *p)
+{
+ struct sockaddr *addr = p;
+ PBNI_NET_OBJECT pnob;
+ SA_MAC_ADDRESS mac_addr;
+
+ SA_ASSERT(netdev);
+ pnob = (PBNI_NET_OBJECT) netdev->priv;
+ SA_ASSERT(pnob);
+
+ memcpy(pnob->mac_address, addr->sa_data, netdev->addr_len);
+ memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
+ memcpy(mac_addr.bytes, pnob->mac_address, SA_MAC_ADDRESS_SIZE);
+ bni_set_uc_mac_adr(pnob, 0, 0, OSM_NOB(pnob)->devno,
+ &mac_addr, NULL, NULL);
+ /*
+ * Since we are doing Active-Passive failover, both
+ * ports should have matching MAC addresses everytime.
+ */
+ bni_set_uc_mac_adr(pnob, 1, 0, OSM_NOB(pnob)->devno,
+ &mac_addr, NULL, NULL);
+
+ return 0;
+}
+
+void get_stats_timer_handler(unsigned long context)
+{
+ be_timer_ctxt_t *ctxt = (be_timer_ctxt_t *) context;
+ if (atomic_read(&ctxt->get_stat_flag)) {
+ atomic_dec(&ctxt->get_stat_flag);
+ up((PVOID) ctxt->get_stat_sem);
+ }
+ del_timer(&ctxt->get_stats_timer);
+ return;
+}
+
+void get_stat_cb(PVOID context, BESTATUS status, MCC_WRB *optional_wrb)
+{
+ be_timer_ctxt_t *ctxt = (be_timer_ctxt_t *) context;
+ /*
+ * just up the semaphore if the get_stat_flag
+ * reads 1. so that the waiter can continue.
+ * If it is 0, then it was handled by the timer handler.
+ */
+ if (atomic_read(&ctxt->get_stat_flag)) {
+ atomic_dec(&ctxt->get_stat_flag);
+ up((PVOID) ctxt->get_stat_sem);
+ }
+}
+
+struct net_device_stats *benet_get_stats(struct net_device *dev)
+{
+ PBNI_NET_OBJECT pnob = dev->priv;
+ PBE_ADAPTER adapter = OSM_NOB(pnob)->adapter;
+ u64 pa;
+ be_timer_ctxt_t *ctxt = adapter->ctxt;
+
+ if (!BE_DEV_STATE_OPEN(adapter) || (pm_resume)) {
+ /* Return previously read stats */
+ return &(adapter->benet_stats);
+ }
+ /* Get Physical Addr */
+ pa = pci_map_single(adapter->pdev, adapter->eth_statsp,
+ sizeof(IOCTL_ETH_GET_STATISTICS),
+ PCI_DMA_FROMDEVICE);
+ pa = cpu_to_le64(pa);
+ ctxt->get_stat_sem = (unsigned long)&adapter->get_eth_stat_sem;
+ bni_get_stats(adapter->net_obj, adapter->eth_statsp,
+ pa, get_stat_cb, (PVOID) ctxt);
+ atomic_inc(&ctxt->get_stat_flag);
+ ctxt->get_stats_timer.data = (unsigned long)ctxt;
+ mod_timer(&ctxt->get_stats_timer, (jiffies + (HZ * 2)));
+ down((PVOID) ctxt->get_stat_sem); /* block till callback is called */
+
+ /*Adding port0 and port1 stats. */
+ adapter->benet_stats.rx_packets =
+ adapter->eth_statsp->params.response.p0recvdtotalframes +
+ adapter->eth_statsp->params.response.p1recvdtotalframes;
+ adapter->benet_stats.tx_packets =
+ adapter->eth_statsp->params.response.p0xmitunicastframes +
+ adapter->eth_statsp->params.response.p1xmitunicastframes;
+ adapter->benet_stats.tx_bytes =
+ adapter->eth_statsp->params.response.p0xmitbyteslsd +
+ adapter->eth_statsp->params.response.p1xmitbyteslsd;
+ adapter->benet_stats.rx_errors =
+ adapter->eth_statsp->params.response.p0crcerrors +
+ adapter->eth_statsp->params.response.p1crcerrors;
+ adapter->benet_stats.rx_errors +=
+ adapter->eth_statsp->params.response.p0alignmentsymerrs +
+ adapter->eth_statsp->params.response.p1alignmentsymerrs;
+ adapter->benet_stats.rx_errors +=
+ adapter->eth_statsp->params.response.p0inrangelenerrors +
+ adapter->eth_statsp->params.response.p1inrangelenerrors;
+ adapter->benet_stats.rx_bytes =
+ adapter->eth_statsp->params.response.p0recvdtotalbytesLSD +
+ adapter->eth_statsp->params.response.p1recvdtotalbytesLSD;
+ adapter->benet_stats.rx_crc_errors =
+ adapter->eth_statsp->params.response.p0crcerrors +
+ adapter->eth_statsp->params.response.p1crcerrors;
+
+ adapter->benet_stats.tx_packets +=
+ adapter->eth_statsp->params.response.p0xmitmulticastframes +
+ adapter->eth_statsp->params.response.p1xmitmulticastframes;
+ adapter->benet_stats.tx_packets +=
+ adapter->eth_statsp->params.response.p0xmitbroadcastframes +
+ adapter->eth_statsp->params.response.p1xmitbroadcastframes;
+ adapter->benet_stats.tx_errors = 0;
+
+ adapter->benet_stats.multicast =
+ adapter->eth_statsp->params.response.p0xmitmulticastframes +
+ adapter->eth_statsp->params.response.p1xmitmulticastframes;
+
+ adapter->benet_stats.rx_fifo_errors =
+ adapter->eth_statsp->params.response.p0rxfifooverflowdropped +
+ adapter->eth_statsp->params.response.p1rxfifooverflowdropped;
+ adapter->benet_stats.rx_frame_errors =
+ adapter->eth_statsp->params.response.p0alignmentsymerrs +
+ adapter->eth_statsp->params.response.p1alignmentsymerrs;
+ adapter->benet_stats.rx_length_errors =
+ adapter->eth_statsp->params.response.p0inrangelenerrors +
+ adapter->eth_statsp->params.response.p1inrangelenerrors;
+ adapter->benet_stats.rx_length_errors +=
+ adapter->eth_statsp->params.response.p0outrangeerrors +
+ adapter->eth_statsp->params.response.p1outrangeerrors;
+ adapter->benet_stats.rx_length_errors +=
+ adapter->eth_statsp->params.response.p0frametoolongerrors +
+ adapter->eth_statsp->params.response.p1frametoolongerrors;
+
+ pci_unmap_single(adapter->pdev, (ulong) adapter->eth_statsp,
+ sizeof(IOCTL_ETH_GET_STATISTICS),
+ PCI_DMA_FROMDEVICE);
+ return &(adapter->benet_stats);
+
+}
+
+/*
+ * function called by the stack for transmitting an ether frame
+ */
+int benet_xmit(struct sk_buff *skb, struct net_device *netdev)
+{
+ PBNI_NET_OBJECT pnob = netdev->priv;
+ PBE_ADAPTER adapter = OSM_NOB(pnob)->adapter;
+ u8 proto;
+ struct iphdr *ip;
+ u16 lso_mss;
+#ifdef NETIF_F_TSO
+ u32 segs;
+
+ lso_mss = skb_shinfo(skb)->gso_size;
+ segs = skb_shinfo(skb)->gso_segs;
+ /*
+ * bug# 3356.
+ * If a LSO request translates into a single segment,
+ * it should be posted as a ethernet WRB with no LSO.
+ */
+ if (segs == 1)
+ lso_mss = 0;
+#else
+ lso_mss = 0;
+#endif /*TSO */
+
+ TRACE(DL_SEND, "benet_xmit: Entry... len = %d", skb->len);
+
+ if (skb->ip_summed == CHECKSUM_PARTIAL) {
+ ip = (struct iphdr *)ip_hdr(skb);
+ proto = ip->protocol;
+ } else {
+ proto = 0;
+ }
+
+ if (betx_ether_frame(adapter, pnob, skb, proto, 0, lso_mss) !=
+ BE_SUCCESS) {
+ return 1; /* NETDEV_TX_BUSY */
+ }
+
+ netdev->trans_start = jiffies;
+ TRACE(DL_SEND, "benet_xmit() : Exit");
+ return 0; /*NETDEV_TX_OK */
+
+}
+
+/*
+ * This is the driver entry point to change the mtu of the device
+ * Returns 0 for success and errno for failure.
+ */
+int benet_change_mtu(struct net_device *netdev, int new_mtu)
+{
+ u32 mtu, max_mtu, max_hdr;
+ max_hdr = BE_ENET_HEADER_SIZE + BE_ETHERNET_FCS_SIZE +
+ BE_SNAP_HEADER_SIZE + BE_HEADER_802_2_SIZE;
+
+ if (netdev->priv_flags & IFF_802_1Q_VLAN)
+ max_hdr += BE_VLAN_HEADER_SIZE;
+
+ mtu = new_mtu + max_hdr;
+
+ /*
+ * BE supports jumbo frame size upto 9000 bytes including the link layer
+ * header. Considering the different variants of frame formats possible
+ * like VLAN, SNAP/LLC, the maximum possible value for MTU is 8974 bytes
+ */
+ max_mtu = BE_MAX_JUMBO_FRAME_SIZE;
+
+ if ((mtu < BE_MIN_ETHER_FRAME_SIZE) || (mtu > max_mtu)) {
+ printk(KERN_WARNING "Invalid MTU requested. "
+ "Must be between %d and %d bytes\n",
+ BE_MIN_SUPPORT_FRAME_SIZE, (max_mtu - max_hdr));
+ return -EINVAL;
+ }
+ printk(KERN_INFO "MTU changed from %d to %d\n", netdev->mtu,
+ new_mtu);
+ netdev->mtu = new_mtu;
+ return 0;
+}
+
+/*
+ * This is the driver entry point to register a vlan with the device
+ */
+void benet_vlan_register(struct net_device *netdev, struct vlan_group *grp)
+{
+ PBNI_NET_OBJECT pnob = netdev->priv;
+
+ TRACE(DL_VLAN, "vlan register called");
+
+ disable_eq_intr(pnob);
+ OSM_NOB(pnob)->vlan_grp = grp;
+ OSM_NOB(pnob)->num_vlans = 0;
+ enable_eq_intr(pnob);
+}
+
+/*
+ * This is the driver entry point to add a vlan vlan_id
+ * with the device netdev
+ */
+void benet_vlan_add_vid(struct net_device *netdev, u16 vlan_id)
+{
+ PBNI_NET_OBJECT pnob = netdev->priv;
+
+ TRACE(DL_VLAN, "Add vlan ID");
+ if (OSM_NOB(pnob)->num_vlans == (BE_NUM_VLAN_SUPPORTED-1)) {
+ /* no way to return an error */
+ printk(KERN_ERR
+ "BladeEngine: Cannot configure more than %d Vlans\n",
+ BE_NUM_VLAN_SUPPORTED);
+ return;
+ }
+ /*The new vlan tag will be in the slot indicated by num_vlans. */
+ OSM_NOB(pnob)->vlan_tag[OSM_NOB(pnob)->num_vlans++] = vlan_id;
+ bni_config_vlan(pnob, OSM_NOB(pnob)->vlan_tag,
+ OSM_NOB(pnob)->num_vlans, NULL, NULL, 0);
+}
+
+/*
+ * This is the driver entry point to remove a vlan vlan_id
+ * with the device netdev
+ */
+void benet_vlan_rem_vid(struct net_device *netdev, u16 vlan_id)
+{
+ PBNI_NET_OBJECT pnob = netdev->priv;
+
+ u32 i, value;
+
+ TRACE(DL_VLAN, "Remove vlan ID");
+ /*
+ * In Blade Engine, we support 32 vlan tag filters across both ports.
+ * To program a vlan tag, the RXF_RTPR_CSR register is used.
+ * Each 32-bit value of RXF_RTDR_CSR can address 2 vlan tag entries.
+ * The Vlan table is of depth 16. thus we support 32 tags.
+ */
+
+ value = vlan_id | VLAN_VALID_BIT;
+ TRACE(DL_VLAN, "Value is %x", value);
+ TRACE(DL_VLAN, "Number of vlan tags is %d", OSM_NOB(pnob)->num_vlans);
+ for (i = 0; i < BE_NUM_VLAN_SUPPORTED; i++) {
+ TRACE(DL_VLAN, "Value at index %d is %x", i,
+ OSM_NOB(pnob)->vlan_tag[i]);
+ if (OSM_NOB(pnob)->vlan_tag[i] == vlan_id) {
+ TRACE(DL_VLAN, "Vlan ID found at index %d", i);
+ break;
+ }
+ }
+
+ if (i == BE_NUM_VLAN_SUPPORTED) {
+ TRACE(DL_VLAN, "Vlan ID %d not dound - remove failed", value);
+ return;
+ }
+ /* Now compact the vlan tag array by removing hole created. */
+ while ((i + 1) < BE_NUM_VLAN_SUPPORTED) {
+ OSM_NOB(pnob)->vlan_tag[i] = OSM_NOB(pnob)->vlan_tag[i + 1];
+ i++;
+ }
+ if ((i + 1) == BE_NUM_VLAN_SUPPORTED) {
+ OSM_NOB(pnob)->vlan_tag[i] = (u16) 0x0;
+ }
+ OSM_NOB(pnob)->num_vlans--;
+ bni_config_vlan(pnob, OSM_NOB(pnob)->vlan_tag,
+ OSM_NOB(pnob)->num_vlans, NULL, NULL, 0);
+ TRACE(DL_VLAN, "Removed the vlan ID of %d", vlan_id);
+}
+
+/*
+ * This function is called to program multicast
+ * address in the multicast filter of the ASIC.
+ */
+void be_set_multicast_filter(struct net_device *netdev)
+{
+ PBNI_NET_OBJECT pnob = netdev->priv;
+ struct dev_mc_list *mc_ptr;
+ SA_MAC_ADDRESS mac_addr[32];
+ int i;
+
+ if (netdev->flags & IFF_ALLMULTI) {
+ /* set BE in Multicast promiscuous */
+ bni_set_mc_filter(pnob, 0, TRUE, NULL, NULL, NULL);
+ return;
+ }
+
+ for (mc_ptr = netdev->mc_list, i = 0; mc_ptr;
+ mc_ptr = mc_ptr->next, i++) {
+ memcpy(mac_addr[i].bytes, mc_ptr->dmi_addr,
+ SA_MAC_ADDRESS_SIZE);
+ }
+ /* reset the promiscuous mode also. */
+ bni_set_mc_filter(pnob, i, FALSE, mac_addr, NULL, NULL);
+
+}
+
+/*
+ * This is the driver entry point to set multicast list
+ * with the device netdev. This function will be used to
+ * set promiscuous mode or multicast promiscuous mode
+ * or multicast mode....
+ */
+void benet_set_multicast_list(struct net_device *netdev)
+{
+ PBNI_NET_OBJECT pnob = netdev->priv;
+ PBE_ADAPTER adapter = OSM_NOB(pnob)->adapter;
+
+ if (netdev->flags & IFF_PROMISC) {
+ bni_set_promisc(adapter->net_obj);
+
+ } else if (netdev->flags & IFF_ALLMULTI) {
+ bni_reset_promisc(adapter->net_obj);
+ be_set_multicast_filter(netdev);
+ } else {
+ bni_reset_promisc(adapter->net_obj);
+ be_set_multicast_filter(netdev);
+ }
+}
+
+#ifdef CONFIG_NET_POLL_CONTROLLER
+static void be_netpoll(struct net_device *netdev)
+{
+ disable_irq(netdev->irq);
+ be_int(netdev->irq, netdev, NULL);
+ enable_irq(netdev->irq);
+}
+#endif
+
+/*
+ * standard entry point functions for all Linux network interface drivers
+ */
+int benet_probe(struct net_device *netdev)
+{
+ PBNI_NET_OBJECT pnob = netdev->priv;
+ PBE_ADAPTER adapter = OSM_NOB(pnob)->adapter;
+
+ TRACE(DL_INIT, "entered-benet_probe().");
+
+ ether_setup(netdev);
+
+ netdev->open = &benet_open;
+ netdev->stop = &benet_close;
+ netdev->do_ioctl = &benet_ioctl;
+
+ netdev->hard_start_xmit = &benet_xmit;
+
+ netdev->get_stats = &benet_get_stats;
+
+#ifdef CONFIG_NET_POLL_CONTROLLER
+ netdev->poll_controller = &be_netpoll;
+#endif
+
+ netdev->set_multicast_list = &benet_set_multicast_list;
+
+ netdev->change_mtu = &benet_change_mtu;
+ netdev->set_mac_address = &benet_set_mac_addr;
+
+ netdev->vlan_rx_register = benet_vlan_register;
+ netdev->vlan_rx_add_vid = benet_vlan_add_vid;
+ netdev->vlan_rx_kill_vid = benet_vlan_rem_vid;
+
+ netdev->features =
+ NETIF_F_SG | NETIF_F_HIGHDMA | NETIF_F_HW_VLAN_RX |
+ NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_FILTER | NETIF_F_IP_CSUM;
+
+ netdev->flags |= IFF_MULTICAST;
+
+ /* If device is DAC Capable, set the HIGHDMA flag for netdevice. */
+ if (adapter->dma_64bit_cap)
+ netdev->features |= NETIF_F_HIGHDMA;
+
+#ifdef NETIF_F_TSO
+ netdev->features |= NETIF_F_TSO;
+#endif
+
+ be_set_ethtool_ops(netdev);
+
+ return 0;
+}
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