/* bnx2x_cmn.h: Broadcom Everest network driver.
*
- * Copyright (c) 2007-2010 Broadcom Corporation
+ * Copyright (c) 2007-2011 Broadcom Corporation
*
* 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
extern int num_queues;
+/************************ Macros ********************************/
+#define BNX2X_PCI_FREE(x, y, size) \
+ do { \
+ if (x) { \
+ dma_free_coherent(&bp->pdev->dev, size, (void *)x, y); \
+ x = NULL; \
+ y = 0; \
+ } \
+ } while (0)
+
+#define BNX2X_FREE(x) \
+ do { \
+ if (x) { \
+ kfree((void *)x); \
+ x = NULL; \
+ } \
+ } while (0)
+
+#define BNX2X_PCI_ALLOC(x, y, size) \
+ do { \
+ x = dma_alloc_coherent(&bp->pdev->dev, size, y, GFP_KERNEL); \
+ if (x == NULL) \
+ goto alloc_mem_err; \
+ memset((void *)x, 0, size); \
+ } while (0)
+
+#define BNX2X_ALLOC(x, size) \
+ do { \
+ x = kzalloc(size, GFP_KERNEL); \
+ if (x == NULL) \
+ goto alloc_mem_err; \
+ } while (0)
+
/*********************** Interfaces ****************************
* Functions that need to be implemented by each driver version
*/
/**
- * Initialize link parameters structure variables.
- *
- * @param bp
- * @param load_mode
+ * bnx2x_initial_phy_init - initialize link parameters structure variables.
*
- * @return u8
+ * @bp: driver handle
+ * @load_mode: current mode
*/
u8 bnx2x_initial_phy_init(struct bnx2x *bp, int load_mode);
/**
- * Configure hw according to link parameters structure.
+ * bnx2x_link_set - configure hw according to link parameters structure.
*
- * @param bp
+ * @bp: driver handle
*/
void bnx2x_link_set(struct bnx2x *bp);
/**
- * Query link status
+ * bnx2x_link_test - query link status.
*
- * @param bp
- * @param is_serdes
+ * @bp: driver handle
+ * @is_serdes: bool
*
- * @return 0 - link is UP
+ * Returns 0 if link is UP.
*/
u8 bnx2x_link_test(struct bnx2x *bp, u8 is_serdes);
/**
- * Handles link status change
+ * bnx2x__link_status_update - handles link status change.
*
- * @param bp
+ * @bp: driver handle
*/
void bnx2x__link_status_update(struct bnx2x *bp);
/**
- * Report link status to upper layer
- *
- * @param bp
+ * bnx2x_link_report - report link status to upper layer.
*
- * @return int
+ * @bp: driver handle
*/
void bnx2x_link_report(struct bnx2x *bp);
+/* None-atomic version of bnx2x_link_report() */
+void __bnx2x_link_report(struct bnx2x *bp);
+
/**
- * calculates MF speed according to current linespeed and MF
- * configuration
+ * bnx2x_get_mf_speed - calculate MF speed.
*
- * @param bp
+ * @bp: driver handle
*
- * @return u16
+ * Takes into account current linespeed and MF configuration.
*/
u16 bnx2x_get_mf_speed(struct bnx2x *bp);
/**
- * MSI-X slowpath interrupt handler
- *
- * @param irq
- * @param dev_instance
+ * bnx2x_msix_sp_int - MSI-X slowpath interrupt handler
*
- * @return irqreturn_t
+ * @irq: irq number
+ * @dev_instance: private instance
*/
irqreturn_t bnx2x_msix_sp_int(int irq, void *dev_instance);
/**
- * non MSI-X interrupt handler
+ * bnx2x_interrupt - non MSI-X interrupt handler
*
- * @param irq
- * @param dev_instance
- *
- * @return irqreturn_t
+ * @irq: irq number
+ * @dev_instance: private instance
*/
irqreturn_t bnx2x_interrupt(int irq, void *dev_instance);
#ifdef BCM_CNIC
/**
- * Send command to cnic driver
+ * bnx2x_cnic_notify - send command to cnic driver
*
- * @param bp
- * @param cmd
+ * @bp: driver handle
+ * @cmd: command
*/
int bnx2x_cnic_notify(struct bnx2x *bp, int cmd);
/**
- * Provides cnic information for proper interrupt handling
+ * bnx2x_setup_cnic_irq_info - provides cnic with IRQ information
*
- * @param bp
+ * @bp: driver handle
*/
void bnx2x_setup_cnic_irq_info(struct bnx2x *bp);
#endif
/**
- * Enable HW interrupts.
+ * bnx2x_int_enable - enable HW interrupts.
*
- * @param bp
+ * @bp: driver handle
*/
void bnx2x_int_enable(struct bnx2x *bp);
/**
- * Disable interrupts. This function ensures that there are no
- * ISRs or SP DPCs (sp_task) are running after it returns.
+ * bnx2x_int_disable_sync - disable interrupts.
*
- * @param bp
- * @param disable_hw if true, disable HW interrupts.
+ * @bp: driver handle
+ * @disable_hw: true, disable HW interrupts.
+ *
+ * This function ensures that there are no
+ * ISRs or SP DPCs (sp_task) are running after it returns.
*/
void bnx2x_int_disable_sync(struct bnx2x *bp, int disable_hw);
/**
- * Loads device firmware
+ * bnx2x_init_firmware - loads device firmware
*
- * @param bp
- *
- * @return int
+ * @bp: driver handle
*/
int bnx2x_init_firmware(struct bnx2x *bp);
/**
- * Init HW blocks according to current initialization stage:
- * COMMON, PORT or FUNCTION.
- *
- * @param bp
- * @param load_code: COMMON, PORT or FUNCTION
+ * bnx2x_init_hw - init HW blocks according to current initialization stage.
*
- * @return int
+ * @bp: driver handle
+ * @load_code: COMMON, PORT or FUNCTION
*/
int bnx2x_init_hw(struct bnx2x *bp, u32 load_code);
/**
- * Init driver internals:
+ * bnx2x_nic_init - init driver internals.
+ *
+ * @bp: driver handle
+ * @load_code: COMMON, PORT or FUNCTION
+ *
+ * Initializes:
* - rings
* - status blocks
* - etc.
- *
- * @param bp
- * @param load_code COMMON, PORT or FUNCTION
*/
void bnx2x_nic_init(struct bnx2x *bp, u32 load_code);
/**
- * Allocate driver's memory.
- *
- * @param bp
+ * bnx2x_alloc_mem - allocate driver's memory.
*
- * @return int
+ * @bp: driver handle
*/
int bnx2x_alloc_mem(struct bnx2x *bp);
/**
- * Release driver's memory.
+ * bnx2x_free_mem - release driver's memory.
*
- * @param bp
+ * @bp: driver handle
*/
void bnx2x_free_mem(struct bnx2x *bp);
/**
- * Setup eth Client.
+ * bnx2x_setup_client - setup eth client.
*
- * @param bp
- * @param fp
- * @param is_leading
- *
- * @return int
+ * @bp: driver handle
+ * @fp: pointer to fastpath structure
+ * @is_leading: boolean
*/
int bnx2x_setup_client(struct bnx2x *bp, struct bnx2x_fastpath *fp,
int is_leading);
/**
- * Set number of queues according to mode
- *
- * @param bp
+ * bnx2x_set_num_queues - set number of queues according to mode.
*
+ * @bp: driver handle
*/
void bnx2x_set_num_queues(struct bnx2x *bp);
/**
- * Cleanup chip internals:
+ * bnx2x_chip_cleanup - cleanup chip internals.
+ *
+ * @bp: driver handle
+ * @unload_mode: COMMON, PORT, FUNCTION
+ *
* - Cleanup MAC configuration.
- * - Close clients.
+ * - Closes clients.
* - etc.
- *
- * @param bp
- * @param unload_mode
*/
void bnx2x_chip_cleanup(struct bnx2x *bp, int unload_mode);
/**
- * Acquire HW lock.
+ * bnx2x_acquire_hw_lock - acquire HW lock.
*
- * @param bp
- * @param resource Resource bit which was locked
- *
- * @return int
+ * @bp: driver handle
+ * @resource: resource bit which was locked
*/
int bnx2x_acquire_hw_lock(struct bnx2x *bp, u32 resource);
/**
- * Release HW lock.
- *
- * @param bp driver handle
- * @param resource Resource bit which was locked
+ * bnx2x_release_hw_lock - release HW lock.
*
- * @return int
+ * @bp: driver handle
+ * @resource: resource bit which was locked
*/
int bnx2x_release_hw_lock(struct bnx2x *bp, u32 resource);
/**
- * Configure eth MAC address in the HW according to the value in
- * netdev->dev_addr.
+ * bnx2x_set_eth_mac - configure eth MAC address in the HW
*
- * @param bp driver handle
- * @param set
+ * @bp: driver handle
+ * @set: set or clear
+ *
+ * Configures according to the value in netdev->dev_addr.
*/
void bnx2x_set_eth_mac(struct bnx2x *bp, int set);
#ifdef BCM_CNIC
/**
- * Set/Clear FIP MAC(s) at the next enties in the CAM after the ETH
- * MAC(s). This function will wait until the ramdord completion
- * returns.
+ * bnx2x_set_fip_eth_mac_addr - Set/Clear FIP MAC(s)
*
- * @param bp driver handle
- * @param set set or clear the CAM entry
+ * @bp: driver handle
+ * @set: set or clear the CAM entry
*
- * @return 0 if cussess, -ENODEV if ramrod doesn't return.
+ * Used next enties in the CAM after the ETH MAC(s).
+ * This function will wait until the ramdord completion returns.
+ * Return 0 if cussess, -ENODEV if ramrod doesn't return.
*/
int bnx2x_set_fip_eth_mac_addr(struct bnx2x *bp, int set);
/**
- * Set/Clear ALL_ENODE mcast MAC.
- *
- * @param bp
- * @param set
+ * bnx2x_set_all_enode_macs - Set/Clear ALL_ENODE mcast MAC.
*
- * @return int
+ * @bp: driver handle
+ * @set: set or clear
*/
int bnx2x_set_all_enode_macs(struct bnx2x *bp, int set);
#endif
/**
- * Set MAC filtering configurations.
+ * bnx2x_set_rx_mode - set MAC filtering configurations.
*
- * @remarks called with netif_tx_lock from dev_mcast.c
+ * @dev: netdevice
*
- * @param dev net_device
+ * called with netif_tx_lock from dev_mcast.c
*/
void bnx2x_set_rx_mode(struct net_device *dev);
/**
- * Configure MAC filtering rules in a FW.
+ * bnx2x_set_storm_rx_mode - configure MAC filtering rules in a FW.
*
- * @param bp driver handle
+ * @bp: driver handle
*/
void bnx2x_set_storm_rx_mode(struct bnx2x *bp);
void bnx2x_disable_close_the_gate(struct bnx2x *bp);
/**
- * Perform statistics handling according to event
+ * bnx2x_stats_handle - perform statistics handling according to event.
*
- * @param bp driver handle
- * @param event bnx2x_stats_event
+ * @bp: driver handle
+ * @event: bnx2x_stats_event
*/
void bnx2x_stats_handle(struct bnx2x *bp, enum bnx2x_stats_event event);
/**
- * Handle ramrods completion
+ * bnx2x_sp_event - handle ramrods completion.
*
- * @param fp fastpath handle for the event
- * @param rr_cqe eth_rx_cqe
+ * @fp: fastpath handle for the event
+ * @rr_cqe: eth_rx_cqe
*/
void bnx2x_sp_event(struct bnx2x_fastpath *fp, union eth_rx_cqe *rr_cqe);
/**
- * Init/halt function before/after sending
- * CLIENT_SETUP/CFC_DEL for the first/last client.
+ * bnx2x_func_start - init function
*
- * @param bp
+ * @bp: driver handle
*
- * @return int
+ * Must be called before sending CLIENT_SETUP for the first client.
*/
int bnx2x_func_start(struct bnx2x *bp);
/**
- * Prepare ILT configurations according to current driver
- * parameters.
+ * bnx2x_ilt_set_info - prepare ILT configurations.
*
- * @param bp
+ * @bp: driver handle
*/
void bnx2x_ilt_set_info(struct bnx2x *bp);
/**
- * Inintialize dcbx protocol
+ * bnx2x_dcbx_init - initialize dcbx protocol.
*
- * @param bp
+ * @bp: driver handle
*/
void bnx2x_dcbx_init(struct bnx2x *bp);
/**
- * Set power state to the requested value. Currently only D0 and
- * D3hot are supported.
+ * bnx2x_set_power_state - set power state to the requested value.
*
- * @param bp
- * @param state D0 or D3hot
+ * @bp: driver handle
+ * @state: required state D0 or D3hot
*
- * @return int
+ * Currently only D0 and D3hot are supported.
*/
int bnx2x_set_power_state(struct bnx2x *bp, pci_power_t state);
/**
- * Updates MAX part of MF configuration in HW
- * (if required)
+ * bnx2x_update_max_mf_config - update MAX part of MF configuration in HW.
*
- * @param bp
- * @param value
+ * @bp: driver handle
+ * @value: new value
*/
void bnx2x_update_max_mf_config(struct bnx2x *bp, u32 value);
/* Release IRQ vectors */
void bnx2x_free_irq(struct bnx2x *bp);
+void bnx2x_free_fp_mem(struct bnx2x *bp);
+int bnx2x_alloc_fp_mem(struct bnx2x *bp);
+
void bnx2x_init_rx_rings(struct bnx2x *bp);
void bnx2x_free_skbs(struct bnx2x *bp);
void bnx2x_netif_stop(struct bnx2x *bp, int disable_hw);
void bnx2x_netif_start(struct bnx2x *bp);
/**
- * Fill msix_table, request vectors, update num_queues according
- * to number of available vectors
+ * bnx2x_enable_msix - set msix configuration.
*
- * @param bp
+ * @bp: driver handle
*
- * @return int
+ * fills msix_table, requests vectors, updates num_queues
+ * according to number of available vectors.
*/
int bnx2x_enable_msix(struct bnx2x *bp);
/**
- * Request msi mode from OS, updated internals accordingly
- *
- * @param bp
+ * bnx2x_enable_msi - request msi mode from OS, updated internals accordingly
*
- * @return int
+ * @bp: driver handle
*/
int bnx2x_enable_msi(struct bnx2x *bp);
/**
- * NAPI callback
+ * bnx2x_poll - NAPI callback
*
- * @param napi
- * @param budget
+ * @napi: napi structure
+ * @budget:
*
- * @return int
*/
int bnx2x_poll(struct napi_struct *napi, int budget);
/**
- * Allocate/release memories outsize main driver structure
+ * bnx2x_alloc_mem_bp - allocate memories outsize main driver structure
*
- * @param bp
- *
- * @return int
+ * @bp: driver handle
*/
int __devinit bnx2x_alloc_mem_bp(struct bnx2x *bp);
-void bnx2x_free_mem_bp(struct bnx2x *bp);
/**
- * Change mtu netdev callback
+ * bnx2x_free_mem_bp - release memories outsize main driver structure
*
- * @param dev
- * @param new_mtu
- *
- * @return int
+ * @bp: driver handle
*/
-int bnx2x_change_mtu(struct net_device *dev, int new_mtu);
+void bnx2x_free_mem_bp(struct bnx2x *bp);
/**
- * tx timeout netdev callback
+ * bnx2x_change_mtu - change mtu netdev callback
*
- * @param dev
- * @param new_mtu
+ * @dev: net device
+ * @new_mtu: requested mtu
*
- * @return int
*/
-void bnx2x_tx_timeout(struct net_device *dev);
+int bnx2x_change_mtu(struct net_device *dev, int new_mtu);
+
+u32 bnx2x_fix_features(struct net_device *dev, u32 features);
+int bnx2x_set_features(struct net_device *dev, u32 features);
-#ifdef BCM_VLAN
/**
- * vlan rx register netdev callback
+ * bnx2x_tx_timeout - tx timeout netdev callback
*
- * @param dev
- * @param new_mtu
- *
- * @return int
+ * @dev: net device
*/
-void bnx2x_vlan_rx_register(struct net_device *dev,
- struct vlan_group *vlgrp);
-
-#endif
+void bnx2x_tx_timeout(struct net_device *dev);
static inline void bnx2x_update_fpsb_idx(struct bnx2x_fastpath *fp)
{
/**
* disables tx from stack point of view
*
- * @param bp
+ * @bp: driver handle
*/
static inline void bnx2x_tx_disable(struct bnx2x *bp)
{
{
int i;
+ if (fp->disable_tpa)
+ return;
+
for (i = 0; i < last; i++)
bnx2x_free_rx_sge(bp, fp, i);
}
}
}
-
-static inline void bnx2x_init_tx_rings(struct bnx2x *bp)
+static inline void bnx2x_init_tx_ring_one(struct bnx2x_fastpath *fp)
{
- int i, j;
+ int i;
- for_each_tx_queue(bp, j) {
- struct bnx2x_fastpath *fp = &bp->fp[j];
+ for (i = 1; i <= NUM_TX_RINGS; i++) {
+ struct eth_tx_next_bd *tx_next_bd =
+ &fp->tx_desc_ring[TX_DESC_CNT * i - 1].next_bd;
- for (i = 1; i <= NUM_TX_RINGS; i++) {
- struct eth_tx_next_bd *tx_next_bd =
- &fp->tx_desc_ring[TX_DESC_CNT * i - 1].next_bd;
+ tx_next_bd->addr_hi =
+ cpu_to_le32(U64_HI(fp->tx_desc_mapping +
+ BCM_PAGE_SIZE*(i % NUM_TX_RINGS)));
+ tx_next_bd->addr_lo =
+ cpu_to_le32(U64_LO(fp->tx_desc_mapping +
+ BCM_PAGE_SIZE*(i % NUM_TX_RINGS)));
+ }
- tx_next_bd->addr_hi =
- cpu_to_le32(U64_HI(fp->tx_desc_mapping +
- BCM_PAGE_SIZE*(i % NUM_TX_RINGS)));
- tx_next_bd->addr_lo =
- cpu_to_le32(U64_LO(fp->tx_desc_mapping +
- BCM_PAGE_SIZE*(i % NUM_TX_RINGS)));
- }
+ SET_FLAG(fp->tx_db.data.header.header, DOORBELL_HDR_DB_TYPE, 1);
+ fp->tx_db.data.zero_fill1 = 0;
+ fp->tx_db.data.prod = 0;
- SET_FLAG(fp->tx_db.data.header.header, DOORBELL_HDR_DB_TYPE, 1);
- fp->tx_db.data.zero_fill1 = 0;
- fp->tx_db.data.prod = 0;
+ fp->tx_pkt_prod = 0;
+ fp->tx_pkt_cons = 0;
+ fp->tx_bd_prod = 0;
+ fp->tx_bd_cons = 0;
+ fp->tx_pkt = 0;
+}
- fp->tx_pkt_prod = 0;
- fp->tx_pkt_cons = 0;
- fp->tx_bd_prod = 0;
- fp->tx_bd_cons = 0;
- fp->tx_pkt = 0;
- }
+static inline void bnx2x_init_tx_rings(struct bnx2x *bp)
+{
+ int i;
+
+ for_each_tx_queue(bp, i)
+ bnx2x_init_tx_ring_one(&bp->fp[i]);
}
static inline void bnx2x_set_next_page_rx_bd(struct bnx2x_fastpath *fp)
}
}
+/* Returns the number of actually allocated BDs */
+static inline int bnx2x_alloc_rx_bds(struct bnx2x_fastpath *fp,
+ int rx_ring_size)
+{
+ struct bnx2x *bp = fp->bp;
+ u16 ring_prod, cqe_ring_prod;
+ int i;
+
+ fp->rx_comp_cons = 0;
+ cqe_ring_prod = ring_prod = 0;
+
+ /* This routine is called only during fo init so
+ * fp->eth_q_stats.rx_skb_alloc_failed = 0
+ */
+ for (i = 0; i < rx_ring_size; i++) {
+ if (bnx2x_alloc_rx_skb(bp, fp, ring_prod) < 0) {
+ fp->eth_q_stats.rx_skb_alloc_failed++;
+ continue;
+ }
+ ring_prod = NEXT_RX_IDX(ring_prod);
+ cqe_ring_prod = NEXT_RCQ_IDX(cqe_ring_prod);
+ WARN_ON(ring_prod <= (i - fp->eth_q_stats.rx_skb_alloc_failed));
+ }
+
+ if (fp->eth_q_stats.rx_skb_alloc_failed)
+ BNX2X_ERR("was only able to allocate "
+ "%d rx skbs on queue[%d]\n",
+ (i - fp->eth_q_stats.rx_skb_alloc_failed), fp->index);
+
+ fp->rx_bd_prod = ring_prod;
+ /* Limit the CQE producer by the CQE ring size */
+ fp->rx_comp_prod = min_t(u16, NUM_RCQ_RINGS*RCQ_DESC_CNT,
+ cqe_ring_prod);
+ fp->rx_pkt = fp->rx_calls = 0;
+
+ return i - fp->eth_q_stats.rx_skb_alloc_failed;
+}
+
#ifdef BCM_CNIC
static inline void bnx2x_init_fcoe_fp(struct bnx2x *bp)
{
struct cmng_struct_per_port *cmng,
u8 port)
{
- size_t size = sizeof(struct cmng_struct_per_port);
+ size_t size =
+ sizeof(struct rate_shaping_vars_per_port) +
+ sizeof(struct fairness_vars_per_port) +
+ sizeof(struct safc_struct_per_port) +
+ sizeof(struct pfc_struct_per_port);
u32 addr = BAR_XSTRORM_INTMEM +
XSTORM_CMNG_PER_PORT_VARS_OFFSET(port);
__storm_memset_struct(bp, addr, size, (u32 *)cmng);
+
+ addr += size + 4 /* SKIP DCB+LLFC */;
+ size = sizeof(struct cmng_struct_per_port) -
+ size /* written */ - 4 /*skipped*/;
+
+ __storm_memset_struct(bp, addr, size,
+ (u32 *)(cmng->traffic_type_to_priority_cos));
}
/* HW Lock for shared dual port PHYs */
void bnx2x_release_phy_lock(struct bnx2x *bp);
/**
- * Extracts MAX BW part from MF configuration.
+ * bnx2x_extract_max_cfg - extract MAX BW part from MF configuration.
*
- * @param bp
- * @param mf_cfg
+ * @bp: driver handle
+ * @mf_cfg: MF configuration
*
- * @return u16
*/
static inline u16 bnx2x_extract_max_cfg(struct bnx2x *bp, u32 mf_cfg)
{
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