#endif
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+#define KNI_VERSION "1.0"
+
#include "compat.h"
#include <linux/if.h>
#define MBUF_BURST_SZ 32
/* Default carrier state for created KNI network interfaces */
-extern uint32_t dflt_carrier;
+extern uint32_t kni_dflt_carrier;
/**
* A structure describing the private information for a kni device.
/* kni list */
struct list_head list;
- int status;
- uint16_t group_id; /* Group ID of a group of KNI devices */
+ uint8_t iova_mode;
+
uint32_t core_id; /* Core ID to bind */
char name[RTE_KNI_NAMESIZE]; /* Network device name */
struct task_struct *pthread;
struct net_device *net_dev;
/* queue for packets to be sent out */
- void *tx_q;
+ struct rte_kni_fifo *tx_q;
/* queue for the packets received */
- void *rx_q;
+ struct rte_kni_fifo *rx_q;
/* queue for the allocated mbufs those can be used to save sk buffs */
- void *alloc_q;
+ struct rte_kni_fifo *alloc_q;
/* free queue for the mbufs to be freed */
- void *free_q;
+ struct rte_kni_fifo *free_q;
/* request queue */
- void *req_q;
+ struct rte_kni_fifo *req_q;
/* response queue */
- void *resp_q;
+ struct rte_kni_fifo *resp_q;
void *sync_kva;
void *sync_va;
/* mbuf size */
uint32_t mbuf_size;
- /* synchro for request processing */
- unsigned long synchro;
-
/* buffers */
void *pa[MBUF_BURST_SZ];
void *va[MBUF_BURST_SZ];
void *alloc_pa[MBUF_BURST_SZ];
void *alloc_va[MBUF_BURST_SZ];
+
+ struct task_struct *usr_tsk;
};
+#ifdef HAVE_IOVA_TO_KVA_MAPPING_SUPPORT
+static inline phys_addr_t iova_to_phys(struct task_struct *tsk,
+ unsigned long iova)
+{
+ phys_addr_t offset, phys_addr;
+ struct page *page = NULL;
+ long ret;
+
+ offset = iova & (PAGE_SIZE - 1);
+
+ /* Read one page struct info */
+ ret = get_user_pages_remote(tsk, tsk->mm, iova, 1,
+ FOLL_TOUCH, &page, NULL, NULL);
+ if (ret < 0)
+ return 0;
+
+ phys_addr = page_to_phys(page) | offset;
+ put_page(page);
+
+ return phys_addr;
+}
+
+static inline void *iova_to_kva(struct task_struct *tsk, unsigned long iova)
+{
+ return phys_to_virt(iova_to_phys(tsk, iova));
+}
+#endif
+
void kni_net_release_fifo_phy(struct kni_dev *kni);
void kni_net_rx(struct kni_dev *kni);
void kni_net_init(struct net_device *dev);