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Commit e21ba414 authored by Michael Chan's avatar Michael Chan Committed by David S. Miller
Browse files

cnic: Add kcq2 support on 57712 



The kcq2 (2nd kernel work queue) is used by FCoE on 57712 devices.

Signed-off-by: default avatarMichael Chan <mchan@broadcom.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 42ecbb84

drivers/net/cnic.c

+55 −21
Original line number Diff line number Diff line
@@ -843,6 +843,7 @@ static void cnic_free_resc(struct cnic_dev *dev) 
	cnic_free_dma(dev, &cp->conn_buf_info);

	cnic_free_dma(dev, &cp->kwq_info);

	cnic_free_dma(dev, &cp->kwq_16_data_info);

	cnic_free_dma(dev, &cp->kcq2.dma);

	cnic_free_dma(dev, &cp->kcq1.dma);

	kfree(cp->iscsi_tbl);

	cp->iscsi_tbl = NULL;
@@ -1183,6 +1184,12 @@ static int cnic_alloc_bnx2x_resc(struct cnic_dev *dev) 
	if (ret)

		goto error;



	if (BNX2X_CHIP_IS_E2(cp->chip_id)) {

		ret = cnic_alloc_kcq(dev, &cp->kcq2);

		if (ret)

			goto error;

	}



	pages = PAGE_ALIGN(BNX2X_ISCSI_NUM_CONNECTIONS *

			   BNX2X_ISCSI_CONN_BUF_SIZE) / PAGE_SIZE;

	ret = cnic_alloc_dma(dev, &cp->conn_buf_info, pages, 1);
@@ -2493,13 +2500,20 @@ static void cnic_service_bnx2x_bh(unsigned long data) 
	status_idx = cnic_service_bnx2x_kcq(dev, &cp->kcq1);



	CNIC_WR16(dev, cp->kcq1.io_addr, cp->kcq1.sw_prod_idx + MAX_KCQ_IDX);

	if (BNX2X_CHIP_IS_E2(cp->chip_id))



	if (BNX2X_CHIP_IS_E2(cp->chip_id)) {

		status_idx = cnic_service_bnx2x_kcq(dev, &cp->kcq2);



		CNIC_WR16(dev, cp->kcq2.io_addr, cp->kcq2.sw_prod_idx +

			  MAX_KCQ_IDX);



		cnic_ack_igu_sb(dev, cp->bnx2x_igu_sb_id, IGU_SEG_ACCESS_DEF,

				status_idx, IGU_INT_ENABLE, 1);

	else

	} else {

		cnic_ack_bnx2x_int(dev, cp->bnx2x_igu_sb_id, USTORM_ID,

				   status_idx, IGU_INT_ENABLE, 1);

	}

}



static int cnic_service_bnx2x(void *data, void *status_blk)

{
@@ -4381,6 +4395,44 @@ static void cnic_get_bnx2x_iscsi_info(struct cnic_dev *dev) 
		dev->max_iscsi_conn = 0;

}



static void cnic_init_bnx2x_kcq(struct cnic_dev *dev)

{

	struct cnic_local *cp = dev->cnic_priv;

	u32 pfid = cp->pfid;



	cp->kcq1.io_addr = BAR_CSTRORM_INTMEM +

			   CSTORM_ISCSI_EQ_PROD_OFFSET(pfid, 0);

	cp->kcq1.sw_prod_idx = 0;



	if (BNX2X_CHIP_IS_E2(cp->chip_id)) {

		struct host_hc_status_block_e2 *sb = cp->status_blk.gen;



		cp->kcq1.hw_prod_idx_ptr =

			&sb->sb.index_values[HC_INDEX_ISCSI_EQ_CONS];

		cp->kcq1.status_idx_ptr =

			&sb->sb.running_index[SM_RX_ID];

	} else {

		struct host_hc_status_block_e1x *sb = cp->status_blk.gen;



		cp->kcq1.hw_prod_idx_ptr =

			&sb->sb.index_values[HC_INDEX_ISCSI_EQ_CONS];

		cp->kcq1.status_idx_ptr =

			&sb->sb.running_index[SM_RX_ID];

	}



	if (BNX2X_CHIP_IS_E2(cp->chip_id)) {

		struct host_hc_status_block_e2 *sb = cp->status_blk.gen;



		cp->kcq2.io_addr = BAR_USTRORM_INTMEM +

					USTORM_FCOE_EQ_PROD_OFFSET(pfid);

		cp->kcq2.sw_prod_idx = 0;

		cp->kcq2.hw_prod_idx_ptr =

			&sb->sb.index_values[HC_INDEX_FCOE_EQ_CONS];

		cp->kcq2.status_idx_ptr =

			&sb->sb.running_index[SM_RX_ID];

	}

}



static int cnic_start_bnx2x_hw(struct cnic_dev *dev)

{

	struct cnic_local *cp = dev->cnic_priv;
@@ -4413,25 +4465,7 @@ static int cnic_start_bnx2x_hw(struct cnic_dev *dev) 


	cp->bnx2x_igu_sb_id = ethdev->irq_arr[0].status_blk_num2;



	cp->kcq1.io_addr = BAR_CSTRORM_INTMEM +

			  CSTORM_ISCSI_EQ_PROD_OFFSET(pfid, 0);

	cp->kcq1.sw_prod_idx = 0;



	if (BNX2X_CHIP_IS_E2(cp->chip_id)) {

		struct host_hc_status_block_e2 *sb = cp->status_blk.gen;



		cp->kcq1.hw_prod_idx_ptr =

			&sb->sb.index_values[HC_INDEX_ISCSI_EQ_CONS];

		cp->kcq1.status_idx_ptr =

			&sb->sb.running_index[SM_RX_ID];

	} else {

		struct host_hc_status_block_e1x *sb = cp->status_blk.gen;



		cp->kcq1.hw_prod_idx_ptr =

			&sb->sb.index_values[HC_INDEX_ISCSI_EQ_CONS];

		cp->kcq1.status_idx_ptr =

			&sb->sb.running_index[SM_RX_ID];

	}

	cnic_init_bnx2x_kcq(dev);



	cnic_get_bnx2x_iscsi_info(dev);

drivers/net/cnic.h

+1 −0
Original line number Diff line number Diff line
@@ -258,6 +258,7 @@ struct cnic_local { 
	u16		kwq_con_idx;



	struct kcq_info	kcq1;

	struct kcq_info	kcq2;



	union {

		void				*gen;