bus: mhi: pci_generic: Parametrable element count for events

Not all hardwares need to use the same number of event ring elements.
This change makes this parametrable.

Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/1614971808-22156-1-git-send-email-loic.poulain@linaro.org
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>

diff --git a/drivers/bus/mhi/pci_generic.c b/drivers/bus/mhi/pci_generic.c
index 20673a4..68c1c86 100644 (file)
--- a/drivers/bus/mhi/pci_generic.c
+++ b/drivers/bus/mhi/pci_generic.c
@@ -71,9 +71,9 @@ struct mhi_pci_dev_info {
                .doorbell_mode_switch = false,          \
        }
 
-#define MHI_EVENT_CONFIG_CTRL(ev_ring)         \
+#define MHI_EVENT_CONFIG_CTRL(ev_ring, el_count) \
        {                                       \
-               .num_elements = 64,             \
+               .num_elements = el_count,       \
                .irq_moderation_ms = 0,         \
                .irq = (ev_ring) + 1,           \
                .priority = 1,                  \
@@ -114,9 +114,9 @@ struct mhi_pci_dev_info {
                .doorbell_mode_switch = true,           \
        }
 
-#define MHI_EVENT_CONFIG_DATA(ev_ring)         \
+#define MHI_EVENT_CONFIG_DATA(ev_ring, el_count) \
        {                                       \
-               .num_elements = 128,            \
+               .num_elements = el_count,       \
                .irq_moderation_ms = 5,         \
                .irq = (ev_ring) + 1,           \
                .priority = 1,                  \
@@ -127,9 +127,9 @@ struct mhi_pci_dev_info {
                .offload_channel = false,       \
        }
 
-#define MHI_EVENT_CONFIG_HW_DATA(ev_ring, ch_num) \
+#define MHI_EVENT_CONFIG_HW_DATA(ev_ring, el_count, ch_num) \
        {                                       \
-               .num_elements = 2048,           \
+               .num_elements = el_count,       \
                .irq_moderation_ms = 1,         \
                .irq = (ev_ring) + 1,           \
                .priority = 1,                  \
@@ -156,12 +156,12 @@ static const struct mhi_channel_config modem_qcom_v1_mhi_channels[] = {
 
 static struct mhi_event_config modem_qcom_v1_mhi_events[] = {
        /* first ring is control+data ring */
-       MHI_EVENT_CONFIG_CTRL(0),
+       MHI_EVENT_CONFIG_CTRL(0, 64),
        /* DIAG dedicated event ring */
-       MHI_EVENT_CONFIG_DATA(1),
+       MHI_EVENT_CONFIG_DATA(1, 128),
        /* Hardware channels request dedicated hardware event rings */
-       MHI_EVENT_CONFIG_HW_DATA(2, 100),
-       MHI_EVENT_CONFIG_HW_DATA(3, 101)
+       MHI_EVENT_CONFIG_HW_DATA(2, 1024, 100),
+       MHI_EVENT_CONFIG_HW_DATA(3, 2048, 101)
 };
 
 static struct mhi_controller_config modem_qcom_v1_mhiv_config = {