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Commit 48bfd1e0 authored by Dhananjay Phadke's avatar Dhananjay Phadke Committed by Jeff Garzik
Browse files

netxen: add netxen_nic_ctx.c 



Contains rx and tx ring context management and certain
firmware commands for netxen firmware v4.0.0+.

This patch gathers all HW context management code into
netxen_nic_ctx.c.

Signed-off-by: default avatarDhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: default avatarJeff Garzik <jgarzik@redhat.com>
parent a97342f9

drivers/net/netxen/Makefile

+1 −1
Original line number Diff line number Diff line
@@ -32,4 +32,4 @@ 
obj-$(CONFIG_NETXEN_NIC) := netxen_nic.o



netxen_nic-y := netxen_nic_hw.o netxen_nic_main.o netxen_nic_init.o \

	netxen_nic_ethtool.o netxen_nic_niu.o
 
	netxen_nic_ethtool.o netxen_nic_niu.o netxen_nic_ctx.o

drivers/net/netxen/netxen_nic.h

+268 −4
Original line number Diff line number Diff line
@@ -84,7 +84,7 @@ 
#define TX_RINGSIZE	\

	(sizeof(struct netxen_cmd_buffer) * adapter->max_tx_desc_count)

#define RCV_BUFFSIZE	\

	(sizeof(struct netxen_rx_buffer) * rcv_desc->max_rx_desc_count)

	(sizeof(struct netxen_rx_buffer) * rds_ring->max_rx_desc_count)

#define find_diff_among(a,b,range) ((a)<(b)?((b)-(a)):((b)+(range)-(a)))



#define NETXEN_NETDEV_STATUS		0x1
@@ -303,7 +303,7 @@ struct netxen_ring_ctx { 
#define netxen_set_cmd_desc_port(cmd_desc, var)	\

	((cmd_desc)->port_ctxid |= ((var) & 0x0F))

#define netxen_set_cmd_desc_ctxid(cmd_desc, var)	\

	((cmd_desc)->port_ctxid |= ((var) & 0xF0))

	((cmd_desc)->port_ctxid |= ((var) << 4 & 0xF0))



#define netxen_set_cmd_desc_flags(cmd_desc, val)	\

	(cmd_desc)->flags_opcode = ((cmd_desc)->flags_opcode & \
@@ -844,7 +844,7 @@ struct netxen_adapter_stats { 
 * Rcv Descriptor Context. One such per Rcv Descriptor. There may

 * be one Rcv Descriptor for normal packets, one for jumbo and may be others.

 */

struct netxen_rcv_desc_ctx {

struct nx_host_rds_ring {

	u32 flags;

	u32 producer;

	dma_addr_t phys_addr;
@@ -864,13 +864,270 @@ struct netxen_rcv_desc_ctx { 
 * present elsewhere.

 */

struct netxen_recv_context {

	struct netxen_rcv_desc_ctx rcv_desc[NUM_RCV_DESC_RINGS];

	u32 state;

	u16 context_id;

	u16 virt_port;



	struct nx_host_rds_ring rds_rings[NUM_RCV_DESC_RINGS];

	u32 status_rx_consumer;

	u32 crb_sts_consumer;	/* reg offset */

	dma_addr_t rcv_status_desc_phys_addr;

	struct status_desc *rcv_status_desc_head;

};



/* New HW context creation */



#define NX_OS_CRB_RETRY_COUNT	4000

#define NX_CDRP_SIGNATURE_MAKE(pcifn, version) \

	(((pcifn) & 0xff) | (((version) & 0xff) << 8) | (0xcafe << 16))



#define NX_CDRP_CLEAR		0x00000000

#define NX_CDRP_CMD_BIT		0x80000000



/*

 * All responses must have the NX_CDRP_CMD_BIT cleared

 * in the crb NX_CDRP_CRB_OFFSET.

 */

#define NX_CDRP_FORM_RSP(rsp)	(rsp)

#define NX_CDRP_IS_RSP(rsp)	(((rsp) & NX_CDRP_CMD_BIT) == 0)



#define NX_CDRP_RSP_OK		0x00000001

#define NX_CDRP_RSP_FAIL	0x00000002

#define NX_CDRP_RSP_TIMEOUT	0x00000003



/*

 * All commands must have the NX_CDRP_CMD_BIT set in

 * the crb NX_CDRP_CRB_OFFSET.

 */

#define NX_CDRP_FORM_CMD(cmd)	(NX_CDRP_CMD_BIT | (cmd))

#define NX_CDRP_IS_CMD(cmd)	(((cmd) & NX_CDRP_CMD_BIT) != 0)



#define NX_CDRP_CMD_SUBMIT_CAPABILITIES     0x00000001

#define NX_CDRP_CMD_READ_MAX_RDS_PER_CTX    0x00000002

#define NX_CDRP_CMD_READ_MAX_SDS_PER_CTX    0x00000003

#define NX_CDRP_CMD_READ_MAX_RULES_PER_CTX  0x00000004

#define NX_CDRP_CMD_READ_MAX_RX_CTX         0x00000005

#define NX_CDRP_CMD_READ_MAX_TX_CTX         0x00000006

#define NX_CDRP_CMD_CREATE_RX_CTX           0x00000007

#define NX_CDRP_CMD_DESTROY_RX_CTX          0x00000008

#define NX_CDRP_CMD_CREATE_TX_CTX           0x00000009

#define NX_CDRP_CMD_DESTROY_TX_CTX          0x0000000a

#define NX_CDRP_CMD_SETUP_STATISTICS        0x0000000e

#define NX_CDRP_CMD_GET_STATISTICS          0x0000000f

#define NX_CDRP_CMD_DELETE_STATISTICS       0x00000010

#define NX_CDRP_CMD_SET_MTU                 0x00000012

#define NX_CDRP_CMD_MAX                     0x00000013



#define NX_RCODE_SUCCESS		0

#define NX_RCODE_NO_HOST_MEM		1

#define NX_RCODE_NO_HOST_RESOURCE	2

#define NX_RCODE_NO_CARD_CRB		3

#define NX_RCODE_NO_CARD_MEM		4

#define NX_RCODE_NO_CARD_RESOURCE	5

#define NX_RCODE_INVALID_ARGS		6

#define NX_RCODE_INVALID_ACTION		7

#define NX_RCODE_INVALID_STATE		8

#define NX_RCODE_NOT_SUPPORTED		9

#define NX_RCODE_NOT_PERMITTED		10

#define NX_RCODE_NOT_READY		11

#define NX_RCODE_DOES_NOT_EXIST		12

#define NX_RCODE_ALREADY_EXISTS		13

#define NX_RCODE_BAD_SIGNATURE		14

#define NX_RCODE_CMD_NOT_IMPL		15

#define NX_RCODE_CMD_INVALID		16

#define NX_RCODE_TIMEOUT		17

#define NX_RCODE_CMD_FAILED		18

#define NX_RCODE_MAX_EXCEEDED		19

#define NX_RCODE_MAX			20



#define NX_DESTROY_CTX_RESET		0

#define NX_DESTROY_CTX_D3_RESET		1

#define NX_DESTROY_CTX_MAX		2



/*

 * Capabilities

 */

#define NX_CAP_BIT(class, bit)		(1 << bit)

#define NX_CAP0_LEGACY_CONTEXT		NX_CAP_BIT(0, 0)

#define NX_CAP0_MULTI_CONTEXT		NX_CAP_BIT(0, 1)

#define NX_CAP0_LEGACY_MN		NX_CAP_BIT(0, 2)

#define NX_CAP0_LEGACY_MS		NX_CAP_BIT(0, 3)

#define NX_CAP0_CUT_THROUGH		NX_CAP_BIT(0, 4)

#define NX_CAP0_LRO			NX_CAP_BIT(0, 5)

#define NX_CAP0_LSO			NX_CAP_BIT(0, 6)

#define NX_CAP0_JUMBO_CONTIGUOUS	NX_CAP_BIT(0, 7)

#define NX_CAP0_LRO_CONTIGUOUS		NX_CAP_BIT(0, 8)



/*

 * Context state

 */

#define NX_HOST_CTX_STATE_FREED		0

#define NX_HOST_CTX_STATE_ALLOCATED	1

#define NX_HOST_CTX_STATE_ACTIVE	2

#define NX_HOST_CTX_STATE_DISABLED	3

#define NX_HOST_CTX_STATE_QUIESCED	4

#define NX_HOST_CTX_STATE_MAX		5



/*

 * Rx context

 */



typedef struct {

	u64 host_phys_addr;	/* Ring base addr */

	u32 ring_size;		/* Ring entries */

	u16 msi_index;

	u16 rsvd;		/* Padding */

} nx_hostrq_sds_ring_t;



typedef struct {

	u64 host_phys_addr;	/* Ring base addr */

	u64 buff_size;		/* Packet buffer size */

	u32 ring_size;		/* Ring entries */

	u32 ring_kind;		/* Class of ring */

} nx_hostrq_rds_ring_t;



typedef struct {

	u64 host_rsp_dma_addr;	/* Response dma'd here */

	u32 capabilities[4];	/* Flag bit vector */

	u32 host_int_crb_mode;	/* Interrupt crb usage */

	u32 host_rds_crb_mode;	/* RDS crb usage */

	/* These ring offsets are relative to data[0] below */

	u32 rds_ring_offset;	/* Offset to RDS config */

	u32 sds_ring_offset;	/* Offset to SDS config */

	u16 num_rds_rings;	/* Count of RDS rings */

	u16 num_sds_rings;	/* Count of SDS rings */

	u16 rsvd1;		/* Padding */

	u16 rsvd2;		/* Padding */

	u8  reserved[128]; 	/* reserve space for future expansion*/

	/* MUST BE 64-bit aligned.

	   The following is packed:

	   - N hostrq_rds_rings

	   - N hostrq_sds_rings */

	char data[0];

} nx_hostrq_rx_ctx_t;



typedef struct {

	u32 host_producer_crb;	/* Crb to use */

	u32 rsvd1;		/* Padding */

} nx_cardrsp_rds_ring_t;



typedef struct {

	u32 host_consumer_crb;	/* Crb to use */

	u32 interrupt_crb;	/* Crb to use */

} nx_cardrsp_sds_ring_t;



typedef struct {

	/* These ring offsets are relative to data[0] below */

	u32 rds_ring_offset;	/* Offset to RDS config */

	u32 sds_ring_offset;	/* Offset to SDS config */

	u32 host_ctx_state;	/* Starting State */

	u32 num_fn_per_port;	/* How many PCI fn share the port */

	u16 num_rds_rings;	/* Count of RDS rings */

	u16 num_sds_rings;	/* Count of SDS rings */

	u16 context_id;		/* Handle for context */

	u8  phys_port;		/* Physical id of port */

	u8  virt_port;		/* Virtual/Logical id of port */

	u8  reserved[128];	/* save space for future expansion */

	/*  MUST BE 64-bit aligned.

	   The following is packed:

	   - N cardrsp_rds_rings

	   - N cardrs_sds_rings */

	char data[0];

} nx_cardrsp_rx_ctx_t;



#define SIZEOF_HOSTRQ_RX(HOSTRQ_RX, rds_rings, sds_rings)	\

	(sizeof(HOSTRQ_RX) + 					\

	(rds_rings)*(sizeof(nx_hostrq_rds_ring_t)) +		\

	(sds_rings)*(sizeof(nx_hostrq_sds_ring_t)))



#define SIZEOF_CARDRSP_RX(CARDRSP_RX, rds_rings, sds_rings) 	\

	(sizeof(CARDRSP_RX) + 					\

	(rds_rings)*(sizeof(nx_cardrsp_rds_ring_t)) + 		\

	(sds_rings)*(sizeof(nx_cardrsp_sds_ring_t)))



/*

 * Tx context

 */



typedef struct {

	u64 host_phys_addr;	/* Ring base addr */

	u32 ring_size;		/* Ring entries */

	u32 rsvd;		/* Padding */

} nx_hostrq_cds_ring_t;



typedef struct {

	u64 host_rsp_dma_addr;	/* Response dma'd here */

	u64 cmd_cons_dma_addr;	/*  */

	u64 dummy_dma_addr;	/*  */

	u32 capabilities[4];	/* Flag bit vector */

	u32 host_int_crb_mode;	/* Interrupt crb usage */

	u32 rsvd1;		/* Padding */

	u16 rsvd2;		/* Padding */

	u16 interrupt_ctl;

	u16 msi_index;

	u16 rsvd3;		/* Padding */

	nx_hostrq_cds_ring_t cds_ring;	/* Desc of cds ring */

	u8  reserved[128];	/* future expansion */

} nx_hostrq_tx_ctx_t;



typedef struct {

	u32 host_producer_crb;	/* Crb to use */

	u32 interrupt_crb;	/* Crb to use */

} nx_cardrsp_cds_ring_t;



typedef struct {

	u32 host_ctx_state;	/* Starting state */

	u16 context_id;		/* Handle for context */

	u8  phys_port;		/* Physical id of port */

	u8  virt_port;		/* Virtual/Logical id of port */

	nx_cardrsp_cds_ring_t cds_ring;	/* Card cds settings */

	u8  reserved[128];	/* future expansion */

} nx_cardrsp_tx_ctx_t;



#define SIZEOF_HOSTRQ_TX(HOSTRQ_TX)	(sizeof(HOSTRQ_TX))

#define SIZEOF_CARDRSP_TX(CARDRSP_TX)	(sizeof(CARDRSP_TX))



/* CRB */



#define NX_HOST_RDS_CRB_MODE_UNIQUE	0

#define NX_HOST_RDS_CRB_MODE_SHARED	1

#define NX_HOST_RDS_CRB_MODE_CUSTOM	2

#define NX_HOST_RDS_CRB_MODE_MAX	3



#define NX_HOST_INT_CRB_MODE_UNIQUE	0

#define NX_HOST_INT_CRB_MODE_SHARED	1

#define NX_HOST_INT_CRB_MODE_NORX	2

#define NX_HOST_INT_CRB_MODE_NOTX	3

#define NX_HOST_INT_CRB_MODE_NORXTX	4





/* MAC */



#define MC_COUNT_P2	16

#define MC_COUNT_P3	38



#define NETXEN_MAC_NOOP	0

#define NETXEN_MAC_ADD	1

#define NETXEN_MAC_DEL	2



typedef struct nx_mac_list_s {

	struct nx_mac_list_s *next;

	uint8_t mac_addr[MAX_ADDR_LEN];

} nx_mac_list_t;



typedef struct {

	u64 qhdr;

	u64 req_hdr;

	u64 words[6];

} nic_request_t;



typedef struct {

	u8 op;

	u8 tag;

	u8 mac_addr[6];

} nx_mac_req_t;





#define NETXEN_NIC_MSI_ENABLED		0x02

#define NETXEN_NIC_MSIX_ENABLED		0x04

#define NETXEN_IS_MSI_FAMILY(adapter) \
@@ -899,11 +1156,13 @@ struct netxen_adapter { 
	int mtu;

	int portnum;

	u8 physical_port;

	u16 tx_context_id;



	uint8_t		mc_enabled;

	uint8_t		max_mc_count;



	struct netxen_legacy_intr_set legacy_intr;

	u32	crb_intr_mask;



	struct work_struct watchdog_task;

	struct timer_list watchdog_timer;
@@ -926,6 +1185,8 @@ struct netxen_adapter { 
	u32 max_jumbo_rx_desc_count;

	u32 max_lro_rx_desc_count;



	int max_rds_rings;



	u32 flags;

	u32 irq;

	int driver_mismatch;
@@ -1144,7 +1405,10 @@ void netxen_post_rx_buffers(struct netxen_adapter *adapter, u32 ctx, 
int netxen_process_cmd_ring(struct netxen_adapter *adapter);

u32 netxen_process_rcv_ring(struct netxen_adapter *adapter, int ctx, int max);

void netxen_nic_set_multi(struct net_device *netdev);



u32 nx_fw_cmd_set_mtu(struct netxen_adapter *adapter, u32 mtu);

int netxen_nic_change_mtu(struct net_device *netdev, int new_mtu);



int netxen_nic_set_mac(struct net_device *netdev, void *p);

struct net_device_stats *netxen_nic_get_stats(struct net_device *netdev);

drivers/net/netxen/netxen_nic_ethtool.c

+2 −2
Original line number Diff line number Diff line
@@ -524,9 +524,9 @@ netxen_nic_get_ringparam(struct net_device *dev, struct ethtool_ringparam *ring) 
	ring->rx_jumbo_pending = 0;

	for (i = 0; i < MAX_RCV_CTX; ++i) {

		ring->rx_pending += adapter->recv_ctx[i].

		    rcv_desc[RCV_DESC_NORMAL_CTXID].max_rx_desc_count;

		    rds_rings[RCV_DESC_NORMAL_CTXID].max_rx_desc_count;

		ring->rx_jumbo_pending += adapter->recv_ctx[i].

		    rcv_desc[RCV_DESC_JUMBO_CTXID].max_rx_desc_count;

		    rds_rings[RCV_DESC_JUMBO_CTXID].max_rx_desc_count;

	}

	ring->tx_pending = adapter->max_tx_desc_count;

drivers/net/netxen/netxen_nic_hw.c

+0 −243
Original line number Diff line number Diff line
@@ -280,80 +280,6 @@ static unsigned crb_hub_agt[64] = 
	0,

};



struct netxen_recv_crb recv_crb_registers[] = {

	/*

	 * Instance 0.

	 */

	{

		/* crb_rcv_producer: */

		{

			NETXEN_NIC_REG(0x100),

			/* Jumbo frames */

			NETXEN_NIC_REG(0x110),

			/* LRO */

			NETXEN_NIC_REG(0x120)

		},

		/* crb_sts_consumer: */

		NETXEN_NIC_REG(0x138),

	},

	/*

	 * Instance 1,

	 */

	{

		/* crb_rcv_producer: */

		{

			NETXEN_NIC_REG(0x144),

			/* Jumbo frames */

			NETXEN_NIC_REG(0x154),

			/* LRO */

			NETXEN_NIC_REG(0x164)

		},

		/* crb_sts_consumer: */

		NETXEN_NIC_REG(0x17c),

	},

	/*

	 * Instance 2,

	 */

	{

		/* crb_rcv_producer: */

		{

			NETXEN_NIC_REG(0x1d8),

			/* Jumbo frames */

			NETXEN_NIC_REG(0x1f8),

			/* LRO */

			NETXEN_NIC_REG(0x208)

		},

		/* crb_sts_consumer: */

		NETXEN_NIC_REG(0x220),

	},

	/*

	 * Instance 3,

	 */

	{

		/* crb_rcv_producer: */

		{

			NETXEN_NIC_REG(0x22c),

			/* Jumbo frames */

			NETXEN_NIC_REG(0x23c),

			/* LRO */

			NETXEN_NIC_REG(0x24c)

		},

		/* crb_sts_consumer: */

		NETXEN_NIC_REG(0x264),

	},

};



static u64 ctx_addr_sig_regs[][3] = {

	{NETXEN_NIC_REG(0x188), NETXEN_NIC_REG(0x18c), NETXEN_NIC_REG(0x1c0)},

	{NETXEN_NIC_REG(0x190), NETXEN_NIC_REG(0x194), NETXEN_NIC_REG(0x1c4)},

	{NETXEN_NIC_REG(0x198), NETXEN_NIC_REG(0x19c), NETXEN_NIC_REG(0x1c8)},

	{NETXEN_NIC_REG(0x1a0), NETXEN_NIC_REG(0x1a4), NETXEN_NIC_REG(0x1cc)}

};

#define CRB_CTX_ADDR_REG_LO(FUNC_ID)		(ctx_addr_sig_regs[FUNC_ID][0])

#define CRB_CTX_ADDR_REG_HI(FUNC_ID)		(ctx_addr_sig_regs[FUNC_ID][2])

#define CRB_CTX_SIGNATURE_REG(FUNC_ID)		(ctx_addr_sig_regs[FUNC_ID][1])





/*  PCI Windowing for DDR regions.  */



#define ADDR_IN_RANGE(addr, low, high)	\
@@ -368,10 +294,6 @@ static u64 ctx_addr_sig_regs[][3] = { 
#define NETXEN_NIU_HDRSIZE	(0x1 << 6)

#define NETXEN_NIU_TLRSIZE	(0x1 << 5)



#define lower32(x)		((u32)((x) & 0xffffffff))

#define upper32(x)			\

	((u32)(((unsigned long long)(x) >> 32) & 0xffffffff))



#define NETXEN_NIC_ZERO_PAUSE_ADDR     0ULL

#define NETXEN_NIC_UNIT_PAUSE_ADDR     0x200ULL

#define NETXEN_NIC_EPG_PAUSE_ADDR1     0x2200010000c28001ULL
@@ -556,171 +478,6 @@ int netxen_nic_change_mtu(struct net_device *netdev, int mtu) 
	return 0;

}



/*

 * check if the firmware has been downloaded and ready to run  and

 * setup the address for the descriptors in the adapter

 */

int netxen_alloc_hw_resources(struct netxen_adapter *adapter)

{

	struct netxen_hardware_context *hw = &adapter->ahw;

	u32 state = 0;

	void *addr;

	int err = 0;

	int ctx, ring;

	struct netxen_recv_context *recv_ctx;

	struct netxen_rcv_desc_ctx *rcv_desc;

	int func_id = adapter->portnum;



	err = netxen_receive_peg_ready(adapter);

	if (err) {

		printk(KERN_ERR "Rcv Peg initialization not complete:%x.\n",

				state);

		return err;

	}

	adapter->intr_scheme = adapter->pci_read_normalize(adapter,

			CRB_NIC_CAPABILITIES_FW);

	adapter->msi_mode = adapter->pci_read_normalize(adapter,

			CRB_NIC_MSI_MODE_FW);



	addr = pci_alloc_consistent(adapter->pdev,

			    sizeof(struct netxen_ring_ctx) + sizeof(uint32_t),

			    &adapter->ctx_desc_phys_addr);



	if (addr == NULL) {

		DPRINTK(ERR, "bad return from pci_alloc_consistent\n");

		err = -ENOMEM;

		return err;

	}

	memset(addr, 0, sizeof(struct netxen_ring_ctx));

	adapter->ctx_desc = (struct netxen_ring_ctx *)addr;

	adapter->ctx_desc->ctx_id = cpu_to_le32(adapter->portnum);

	adapter->ctx_desc->cmd_consumer_offset =

	    cpu_to_le64(adapter->ctx_desc_phys_addr +

			sizeof(struct netxen_ring_ctx));

	adapter->cmd_consumer = (__le32 *) (((char *)addr) +

					      sizeof(struct netxen_ring_ctx));



	addr = pci_alloc_consistent(adapter->pdev,

			    sizeof(struct cmd_desc_type0) *

			    adapter->max_tx_desc_count,

			    &hw->cmd_desc_phys_addr);



	if (addr == NULL) {

		DPRINTK(ERR, "bad return from pci_alloc_consistent\n");

		netxen_free_hw_resources(adapter);

		return -ENOMEM;

	}



	adapter->ctx_desc->cmd_ring_addr =

		cpu_to_le64(hw->cmd_desc_phys_addr);

	adapter->ctx_desc->cmd_ring_size =

		cpu_to_le32(adapter->max_tx_desc_count);



	hw->cmd_desc_head = (struct cmd_desc_type0 *)addr;



	for (ctx = 0; ctx < MAX_RCV_CTX; ++ctx) {

		recv_ctx = &adapter->recv_ctx[ctx];



		for (ring = 0; ring < NUM_RCV_DESC_RINGS; ring++) {

			rcv_desc = &recv_ctx->rcv_desc[ring];

			addr = pci_alloc_consistent(adapter->pdev,

					    RCV_DESC_RINGSIZE,

					    &rcv_desc->phys_addr);

			if (addr == NULL) {

				DPRINTK(ERR, "bad return from "

					"pci_alloc_consistent\n");

				netxen_free_hw_resources(adapter);

				err = -ENOMEM;

				return err;

			}

			rcv_desc->desc_head = (struct rcv_desc *)addr;

			adapter->ctx_desc->rcv_ctx[ring].rcv_ring_addr =

			    cpu_to_le64(rcv_desc->phys_addr);

			adapter->ctx_desc->rcv_ctx[ring].rcv_ring_size =

			    cpu_to_le32(rcv_desc->max_rx_desc_count);

			rcv_desc->crb_rcv_producer =

				    recv_crb_registers[adapter->portnum].

				    crb_rcv_producer[ring];

		}



		addr = pci_alloc_consistent(adapter->pdev, STATUS_DESC_RINGSIZE,

				    &recv_ctx->rcv_status_desc_phys_addr);

		if (addr == NULL) {

			DPRINTK(ERR, "bad return from"

				" pci_alloc_consistent\n");

			netxen_free_hw_resources(adapter);

			err = -ENOMEM;

			return err;

		}

		recv_ctx->rcv_status_desc_head = (struct status_desc *)addr;

		adapter->ctx_desc->sts_ring_addr =

		    cpu_to_le64(recv_ctx->rcv_status_desc_phys_addr);

		adapter->ctx_desc->sts_ring_size =

		    cpu_to_le32(adapter->max_rx_desc_count);

		recv_ctx->crb_sts_consumer =

			recv_crb_registers[adapter->portnum].crb_sts_consumer;



	}

	/* Window = 1 */



	adapter->pci_write_normalize(adapter, CRB_CTX_ADDR_REG_LO(func_id),

			lower32(adapter->ctx_desc_phys_addr));

	adapter->pci_write_normalize(adapter, CRB_CTX_ADDR_REG_HI(func_id),

			upper32(adapter->ctx_desc_phys_addr));

	adapter->pci_write_normalize(adapter, CRB_CTX_SIGNATURE_REG(func_id),

			NETXEN_CTX_SIGNATURE | func_id);

	return err;

}



void netxen_free_hw_resources(struct netxen_adapter *adapter)

{

	struct netxen_recv_context *recv_ctx;

	struct netxen_rcv_desc_ctx *rcv_desc;

	int ctx, ring;



	if (adapter->ctx_desc != NULL) {

		pci_free_consistent(adapter->pdev,

				    sizeof(struct netxen_ring_ctx) +

				    sizeof(uint32_t),

				    adapter->ctx_desc,

				    adapter->ctx_desc_phys_addr);

		adapter->ctx_desc = NULL;

	}



	if (adapter->ahw.cmd_desc_head != NULL) {

		pci_free_consistent(adapter->pdev,

				    sizeof(struct cmd_desc_type0) *

				    adapter->max_tx_desc_count,

				    adapter->ahw.cmd_desc_head,

				    adapter->ahw.cmd_desc_phys_addr);

		adapter->ahw.cmd_desc_head = NULL;

	}



	for (ctx = 0; ctx < MAX_RCV_CTX; ++ctx) {

		recv_ctx = &adapter->recv_ctx[ctx];

		for (ring = 0; ring < NUM_RCV_DESC_RINGS; ring++) {

			rcv_desc = &recv_ctx->rcv_desc[ring];



			if (rcv_desc->desc_head != NULL) {

				pci_free_consistent(adapter->pdev,

						    RCV_DESC_RINGSIZE,

						    rcv_desc->desc_head,

						    rcv_desc->phys_addr);

				rcv_desc->desc_head = NULL;

			}

		}



		if (recv_ctx->rcv_status_desc_head != NULL) {

			pci_free_consistent(adapter->pdev,

					    STATUS_DESC_RINGSIZE,

					    recv_ctx->rcv_status_desc_head,

					    recv_ctx->

					    rcv_status_desc_phys_addr);

			recv_ctx->rcv_status_desc_head = NULL;

		}

	}

}



void netxen_tso_check(struct netxen_adapter *adapter,

		      struct cmd_desc_type0 *desc, struct sk_buff *skb)

{

drivers/net/netxen/netxen_nic_init.c

+79 −75

File changed.

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