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Commit 2cd2a196 authored by Aleksey Makarov's avatar Aleksey Makarov Committed by David S. Miller
Browse files

net: thunderx: introduce a function for mailbox access 



This fixes sparse message:

drivers/net/ethernet/cavium/thunder/nicvf_main.c:153:25: sparse: cast to
restricted __le64

Reported-by: default avatarkbuild test robot <fengguang.wu@intel.com>
Signed-off-by: default avatarAleksey Makarov <aleksey.makarov@caviumnetworks.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 4a4f87d8

drivers/net/ethernet/cavium/thunder/nicvf_main.c

+17 −10
Original line number Diff line number Diff line
@@ -110,17 +110,23 @@ u64 nicvf_queue_reg_read(struct nicvf *nic, u64 offset, u64 qidx) 


/* VF -> PF mailbox communication */



static void nicvf_write_to_mbx(struct nicvf *nic, union nic_mbx *mbx)

{

	u64 *msg = (u64 *)mbx;



	nicvf_reg_write(nic, NIC_VF_PF_MAILBOX_0_1 + 0, msg[0]);

	nicvf_reg_write(nic, NIC_VF_PF_MAILBOX_0_1 + 8, msg[1]);

}



int nicvf_send_msg_to_pf(struct nicvf *nic, union nic_mbx *mbx)

{

	int timeout = NIC_MBOX_MSG_TIMEOUT;

	int sleep = 10;

	u64 *msg = (u64 *)mbx;



	nic->pf_acked = false;

	nic->pf_nacked = false;



	nicvf_reg_write(nic, NIC_VF_PF_MAILBOX_0_1 + 0, msg[0]);

	nicvf_reg_write(nic, NIC_VF_PF_MAILBOX_0_1 + 8, msg[1]);

	nicvf_write_to_mbx(nic, mbx);



	/* Wait for previous message to be acked, timeout 2sec */

	while (!nic->pf_acked) {
@@ -146,12 +152,13 @@ int nicvf_send_msg_to_pf(struct nicvf *nic, union nic_mbx *mbx) 
static int nicvf_check_pf_ready(struct nicvf *nic)

{

	int timeout = 5000, sleep = 20;

	union nic_mbx mbx = {};



	mbx.msg.msg = NIC_MBOX_MSG_READY;



	nic->pf_ready_to_rcv_msg = false;



	nicvf_reg_write(nic, NIC_VF_PF_MAILBOX_0_1 + 0,

			le64_to_cpu(NIC_MBOX_MSG_READY));

	nicvf_reg_write(nic, NIC_VF_PF_MAILBOX_0_1 + 8, 1ULL);

	nicvf_write_to_mbx(nic, &mbx);



	while (!nic->pf_ready_to_rcv_msg) {

		msleep(sleep);
@@ -368,7 +375,9 @@ int nicvf_set_real_num_queues(struct net_device *netdev, 
static int nicvf_init_resources(struct nicvf *nic)

{

	int err;

	u64 mbx_addr = NIC_VF_PF_MAILBOX_0_1;

	union nic_mbx mbx = {};



	mbx.msg.msg = NIC_MBOX_MSG_CFG_DONE;



	/* Enable Qset */

	nicvf_qset_config(nic, true);
@@ -382,9 +391,7 @@ static int nicvf_init_resources(struct nicvf *nic) 
	}



	/* Send VF config done msg to PF */

	nicvf_reg_write(nic, mbx_addr, le64_to_cpu(NIC_MBOX_MSG_CFG_DONE));

	mbx_addr += (NIC_PF_VF_MAILBOX_SIZE - 1) * 8;

	nicvf_reg_write(nic, mbx_addr, 1ULL);

	nicvf_write_to_mbx(nic, &mbx);



	return 0;

}