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authorSerge Semin <fancer.lancer@gmail.com>2017-12-06 17:31:52 +0300
committerJon Mason <jdmason@kudzu.us>2018-01-28 22:17:23 -0500
commitb87ab21935d76922362ff98a5a78f16e2e956ead (patch)
tree0c937e57fd77d5a59df5907a3fff92b9a10b5243 /drivers/ntb
parentc6fad21a8d03167a47fc376a64df785d8f6e7385 (diff)
NTB: Rename NTB messaging API methods
There is a common methods signature form used over all the NTB API like functions naming scheme, arguments names and order, etc. Recently added NTB messaging API IO callbacks were named a bit different so should be renamed to be in compliance with the rest of the API. Signed-off-by: Serge Semin <fancer.lancer@gmail.com> Signed-off-by: Jon Mason <jdmason@kudzu.us>
Diffstat (limited to 'drivers/ntb')
-rw-r--r--drivers/ntb/hw/idt/ntb_hw_idt.c27
1 files changed, 12 insertions, 15 deletions
diff --git a/drivers/ntb/hw/idt/ntb_hw_idt.c b/drivers/ntb/hw/idt/ntb_hw_idt.c
index 0cd79f367f7c..24040317bb9c 100644
--- a/drivers/ntb/hw/idt/ntb_hw_idt.c
+++ b/drivers/ntb/hw/idt/ntb_hw_idt.c
@@ -1744,20 +1744,19 @@ static int idt_ntb_msg_clear_mask(struct ntb_dev *ntb, u64 mask_bits)
* idt_ntb_msg_read() - read message register with specified index
* (NTB API callback)
* @ntb: NTB device context.
- * @midx: Message register index
* @pidx: OUT - Port index of peer device a message retrieved from
- * @msg: OUT - Data
+ * @midx: Message register index
*
* Read data from the specified message register and source register.
*
- * Return: zero on success, negative error if invalid argument passed.
+ * Return: inbound message register value.
*/
-static int idt_ntb_msg_read(struct ntb_dev *ntb, int midx, int *pidx, u32 *msg)
+static u32 idt_ntb_msg_read(struct ntb_dev *ntb, int *pidx, int midx)
{
struct idt_ntb_dev *ndev = to_ndev_ntb(ntb);
if (midx < 0 || IDT_MSG_CNT <= midx)
- return -EINVAL;
+ return ~(u32)0;
/* Retrieve source port index of the message */
if (pidx != NULL) {
@@ -1772,18 +1771,15 @@ static int idt_ntb_msg_read(struct ntb_dev *ntb, int midx, int *pidx, u32 *msg)
}
/* Retrieve data of the corresponding message register */
- if (msg != NULL)
- *msg = idt_nt_read(ndev, ntdata_tbl.msgs[midx].in);
-
- return 0;
+ return idt_nt_read(ndev, ntdata_tbl.msgs[midx].in);
}
/*
- * idt_ntb_msg_write() - write data to the specified message register
- * (NTB API callback)
+ * idt_ntb_peer_msg_write() - write data to the specified message register
+ * (NTB API callback)
* @ntb: NTB device context.
- * @midx: Message register index
* @pidx: Port index of peer device a message being sent to
+ * @midx: Message register index
* @msg: Data to send
*
* Just try to send data to a peer. Message status register should be
@@ -1791,7 +1787,8 @@ static int idt_ntb_msg_read(struct ntb_dev *ntb, int midx, int *pidx, u32 *msg)
*
* Return: zero on success, negative error if invalid argument passed.
*/
-static int idt_ntb_msg_write(struct ntb_dev *ntb, int midx, int pidx, u32 msg)
+static int idt_ntb_peer_msg_write(struct ntb_dev *ntb, int pidx, int midx,
+ u32 msg)
{
struct idt_ntb_dev *ndev = to_ndev_ntb(ntb);
unsigned long irqflags;
@@ -2058,7 +2055,7 @@ static const struct ntb_dev_ops idt_ntb_ops = {
.msg_set_mask = idt_ntb_msg_set_mask,
.msg_clear_mask = idt_ntb_msg_clear_mask,
.msg_read = idt_ntb_msg_read,
- .msg_write = idt_ntb_msg_write
+ .peer_msg_write = idt_ntb_peer_msg_write
};
/*
@@ -2269,7 +2266,7 @@ static ssize_t idt_dbgfs_info_read(struct file *filp, char __user *ubuf,
"Message data:\n");
for (idx = 0; idx < IDT_MSG_CNT; idx++) {
int src;
- (void)idt_ntb_msg_read(&ndev->ntb, idx, &src, &data);
+ data = idt_ntb_msg_read(&ndev->ntb, &src, idx);
off += scnprintf(strbuf + off, size - off,
"\t%hhu. 0x%08x from peer %hhu (Port %hhu)\n",
idx, data, src, ndev->peers[src].port);