cxgb4: Add support for dynamic allocation of resources for ULD
Add a new commmon infrastructure to allocate reosurces dynamically to
Upper layer driver's(ULD) when they register with cxgb4 driver and free
them during unregistering. All the queues and the interrupts for
them will be allocated during ULD probe only and freed during remove.
Signed-off-by: Atul Gupta <atul.gupta@chelsio.com>
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h
index f3c58aa..ab40372 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h
@@ -32,8 +32,8 @@
* SOFTWARE.
*/
-#ifndef __CXGB4_OFLD_H
-#define __CXGB4_OFLD_H
+#ifndef __CXGB4_ULD_H
+#define __CXGB4_ULD_H
#include <linux/cache.h>
#include <linux/spinlock.h>
@@ -296,8 +296,36 @@
void (*lro_flush)(struct t4_lro_mgr *);
};
+enum cxgb4_pci_uld {
+ CXGB4_PCI_ULD1,
+ CXGB4_PCI_ULD_MAX
+};
+
+struct cxgb4_pci_uld_info {
+ const char *name;
+ bool lro;
+ void *handle;
+ unsigned int nrxq;
+ unsigned int nciq;
+ unsigned int rxq_size;
+ unsigned int ciq_size;
+ void *(*add)(const struct cxgb4_lld_info *p);
+ int (*rx_handler)(void *handle, const __be64 *rsp,
+ const struct pkt_gl *gl);
+ int (*state_change)(void *handle, enum cxgb4_state new_state);
+ int (*control)(void *handle, enum cxgb4_control control, ...);
+ int (*lro_rx_handler)(void *handle, const __be64 *rsp,
+ const struct pkt_gl *gl,
+ struct t4_lro_mgr *lro_mgr,
+ struct napi_struct *napi);
+ void (*lro_flush)(struct t4_lro_mgr *);
+};
+
int cxgb4_register_uld(enum cxgb4_uld type, const struct cxgb4_uld_info *p);
int cxgb4_unregister_uld(enum cxgb4_uld type);
+int cxgb4_register_pci_uld(enum cxgb4_pci_uld type,
+ struct cxgb4_pci_uld_info *p);
+int cxgb4_unregister_pci_uld(enum cxgb4_pci_uld type);
int cxgb4_ofld_send(struct net_device *dev, struct sk_buff *skb);
unsigned int cxgb4_dbfifo_count(const struct net_device *dev, int lpfifo);
unsigned int cxgb4_port_chan(const struct net_device *dev);
@@ -330,4 +358,4 @@
u64 *pbar2_qoffset,
unsigned int *pbar2_qid);
-#endif /* !__CXGB4_OFLD_H */
+#endif /* !__CXGB4_ULD_H */