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Subject[PATCH 07/22] NTB: Fix a few ntb.h issues
Date
Fix some minor issues found in ntb.h file.

Signed-off-by: Serge Semin <fancer.lancer@gmail.com>

---
include/linux/ntb.h | 18 ++++++++++++------
1 file changed, 12 insertions(+), 6 deletions(-)

diff --git a/include/linux/ntb.h b/include/linux/ntb.h
index a59a155..8b19327 100644
--- a/include/linux/ntb.h
+++ b/include/linux/ntb.h
@@ -90,6 +90,7 @@ static inline char *ntb_topo_string(enum ntb_topo topo)
* @NTB_SPEED_GEN1: Link is trained to gen1 speed.
* @NTB_SPEED_GEN2: Link is trained to gen2 speed.
* @NTB_SPEED_GEN3: Link is trained to gen3 speed.
+ * @NTB_SPEED_GEN4: Link is trained to gen4 speed.
*/
enum ntb_speed {
NTB_SPEED_AUTO = -1,
@@ -97,6 +98,7 @@ enum ntb_speed {
NTB_SPEED_GEN1 = 1,
NTB_SPEED_GEN2 = 2,
NTB_SPEED_GEN3 = 3,
+ NTB_SPEED_GEN4 = 4
};

/**
@@ -292,13 +294,18 @@ static inline int ntb_dev_ops_is_valid(const struct ntb_dev_ops *ops)
{
/* commented callbacks are not required: */
return
+ /* Port operations are required */
ops->port_number &&
ops->peer_port_count &&
ops->peer_port_number &&
ops->peer_port_idx &&
+
+ /* Link operations are requiered */
ops->link_is_up &&
ops->link_enable &&
ops->link_disable &&
+
+ /* One or both MW interfaces should be developed */
ops->mw_count &&
ops->mw_get_align &&
(ops->mw_set_trans ||
@@ -308,12 +315,11 @@ static inline int ntb_dev_ops_is_valid(const struct ntb_dev_ops *ops)
ops->peer_mw_get_addr &&
/* ops->peer_mw_clear_trans && */

+ /* Doorbell operations are mostly required */
/* ops->db_is_unsafe && */
ops->db_valid_mask &&
-
/* both set, or both unset */
(!ops->db_vector_count == !ops->db_vector_mask) &&
-
ops->db_read &&
/* ops->db_set && */
ops->db_clear &&
@@ -327,6 +333,8 @@ static inline int ntb_dev_ops_is_valid(const struct ntb_dev_ops *ops)
/* ops->peer_db_read_mask && */
/* ops->peer_db_set_mask && */
/* ops->peer_db_clear_mask && */
+
+ /* Scrachpad or messaging interfaces should be developed */
((/* ops->spad_is_unsafe && */
ops->spad_count &&
ops->spad_read &&
@@ -355,13 +363,12 @@ struct ntb_client {
struct device_driver drv;
const struct ntb_client_ops ops;
};
-
#define drv_ntb_client(__drv) container_of((__drv), struct ntb_client, drv)

/**
* struct ntb_device - ntb device
* @dev: Linux device object.
- * @pdev: Pci device entry of the ntb.
+ * @pdev: PCI device entry of the ntb.
* @topo: Detected topology of the ntb.
* @port: Local port of the ntb.
* @ops: See &ntb_dev_ops.
@@ -384,7 +391,6 @@ struct ntb_dev {
/* block unregister until device is fully released */
struct completion released;
};
-
#define dev_ntb(__dev) container_of((__dev), struct ntb_dev, dev)

/**
@@ -481,7 +487,7 @@ void ntb_link_event(struct ntb_dev *ntb);
* multiple interrupt vectors for doorbells, the vector number indicates which
* vector received the interrupt. The vector number is relative to the first
* vector used for doorbells, starting at zero, and must be less than
- ** ntb_db_vector_count(). The driver may call ntb_db_read() to check which
+ * ntb_db_vector_count(). The driver may call ntb_db_read() to check which
* doorbell bits need service, and ntb_db_vector_mask() to determine which of
* those bits are associated with the vector number.
*/
--
2.6.6
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