[PATCH 03/10] net: thunderx: introduce a function for mailbox access
Aleksey Makarov
aleksey.makarov at caviumnetworks.com
Tue Jun 2 11:00:20 PDT 2015
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 at intel.com>
Signed-off-by: Aleksey Makarov <aleksey.makarov at caviumnetworks.com>
---
drivers/net/ethernet/cavium/thunder/nicvf_main.c | 27 +++++++++++++++---------
1 file changed, 17 insertions(+), 10 deletions(-)
diff --git a/drivers/net/ethernet/cavium/thunder/nicvf_main.c b/drivers/net/ethernet/cavium/thunder/nicvf_main.c
index f81182c..989f005 100644
--- a/drivers/net/ethernet/cavium/thunder/nicvf_main.c
+++ b/drivers/net/ethernet/cavium/thunder/nicvf_main.c
@@ -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;
}
--
2.4.1
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