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net: thunderx: introduce a function for mailbox access

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This fixes sparse message:

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

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Aleksey Makarov <aleksey.makarov@caviumnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Aleksey Makarov 2015-06-02 11:00:20 -07:00 committed by David S. Miller
parent 4a4f87d8ca
commit 2cd2a196af
1 changed files with 17 additions and 10 deletions
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27
drivers/net/ethernet/cavium/thunder/nicvf_main.c
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@ -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;
}