qed: Expose the doorbell overflow recovery mechanism to the protocol drivers

Most of the doorbelling entities are outside of the core module.
L2 queues, Roce queues, iscsi and fcoe all need to register.
Make the APIs available for these drivers.

Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com>
Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com>
Signed-off-by: Tomer Tayar <Tomer.Tayar@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/qlogic/qed/qed_main.c b/drivers/net/ethernet/qlogic/qed/qed_main.c
index 5ec3f5d1d6b267a0dfb5ba845a7a1f1a8a239c40..6adf5bda9811ef70af7a3f62a7da4ac197af8164 100644 (file)
--- a/drivers/net/ethernet/qlogic/qed/qed_main.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_main.c
@@ -2384,6 +2384,8 @@ const struct qed_common_ops qed_common_ops_pass = {
        .update_mac = &qed_update_mac,
        .update_mtu = &qed_update_mtu,
        .update_wol = &qed_update_wol,
+       .db_recovery_add = &qed_db_recovery_add,
+       .db_recovery_del = &qed_db_recovery_del,
        .read_module_eeprom = &qed_read_module_eeprom,
 };
 

diff --git a/include/linux/qed/qed_if.h b/include/linux/qed/qed_if.h
index eb851f89f417ab3bc8c268ab9ef927278620eabb..91c536a01b56891498b774002bc50cedb27b7739 100644 (file)
--- a/include/linux/qed/qed_if.h
+++ b/include/linux/qed/qed_if.h
@@ -1029,6 +1029,33 @@ struct qed_common_ops {
  */
        int (*set_led)(struct qed_dev *cdev,
                       enum qed_led_mode mode);
+/**
+ * @brief db_recovery_add - add doorbell information to the doorbell
+ * recovery mechanism.
+ *
+ * @param cdev
+ * @param db_addr - doorbell address
+ * @param db_data - address of where db_data is stored
+ * @param db_is_32b - doorbell is 32b pr 64b
+ * @param db_is_user - doorbell recovery addresses are user or kernel space
+ */
+       int (*db_recovery_add)(struct qed_dev *cdev,
+                              void __iomem *db_addr,
+                              void *db_data,
+                              enum qed_db_rec_width db_width,
+                              enum qed_db_rec_space db_space);
+
+/**
+ * @brief db_recovery_del - remove doorbell information from the doorbell
+ * recovery mechanism. db_data serves as key (db_addr is not unique).
+ *
+ * @param cdev
+ * @param db_addr - doorbell address
+ * @param db_data - address where db_data is stored. Serves as key for the
+ *                 entry to delete.
+ */
+       int (*db_recovery_del)(struct qed_dev *cdev,
+                              void __iomem *db_addr, void *db_data);
 
 /**
  * @brief update_drv_state - API to inform the change in the driver state.