On 06/08/2015 06:24 PM, Manoj Kumar wrote:
On 6/8/2015 5:56 PM, Brian King wrote:
+retry:
+newval = atomic64_dec_if_positive(afu-room);
+if (!newval) {
+do {
+room = readq_be(afu-host_map-cmd_room);
+atomic64_set(afu-room, room);
+if
On 6/9/2015 6:29 AM, Brian King wrote:
Pulled out going to sleep in the queuecommand path.
udelay doesn't sleep, its a busy wait, so you can still use it in queuecommand,
just don't spend too much time, and its probably better to udelay then to
just re-read in a tight loop.
Thanks for the
Brian/Manoj,
See my alternate proposal below.
-matt
On Jun 9, 2015, at 9:37 AM, Manoj Kumar wrote:
On 6/9/2015 6:29 AM, Brian King wrote:
This was the optimization to avoid the MMIO for both threads. The other
thread that raced should
do the atomic set of afu-room to a positive value.
On Jun 9, 2015, at 1:30 PM, Brian King wrote:
On 06/09/2015 11:01 AM, Matthew R. Ochs wrote:
On Jun 9, 2015, at 9:37 AM, Manoj Kumar wrote:
On 6/9/2015 6:29 AM, Brian King wrote:
This was the optimization to avoid the MMIO for both threads. The other
thread that raced should
do the
On 06/09/2015 11:01 AM, Matthew R. Ochs wrote:
Brian/Manoj,
See my alternate proposal below.
-matt
On Jun 9, 2015, at 9:37 AM, Manoj Kumar wrote:
On 6/9/2015 6:29 AM, Brian King wrote:
This was the optimization to avoid the MMIO for both threads. The other
thread that raced should
On 06/08/2015 05:30 PM, Matthew R. Ochs wrote:
+
+/**
+ * cxlflash_send_cmd() - sends an AFU command
+ * @afu: AFU associated with the host.
+ * @cmd: AFU command to send.
+ *
+ * Return:
+ * 0 on success
+ * -1 on failure
+ */
+int cxlflash_send_cmd(struct afu *afu, struct
Brian:
Thanks for the quick review. Comments below.
- Manoj
On 6/8/2015 5:56 PM, Brian King wrote:
+retry:
+ newval = atomic64_dec_if_positive(afu-room);
+ if (!newval) {
+ do {
+ room = readq_be(afu-host_map-cmd_room);
+
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