From 37f49e37ab4cb5d0bc4c60eb5c6d4dd57db767bb Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Fri, 10 May 2024 07:44:59 +0000
Subject: [PATCH] gmac get mac form eeprom
---
kernel/include/linux/pci-epf.h | 33 ++++++++++++++++++++++++++++-----
1 files changed, 28 insertions(+), 5 deletions(-)
diff --git a/kernel/include/linux/pci-epf.h b/kernel/include/linux/pci-epf.h
index ec02f58..fa3aca4 100644
--- a/kernel/include/linux/pci-epf.h
+++ b/kernel/include/linux/pci-epf.h
@@ -15,7 +15,13 @@
struct pci_epf;
+enum pci_notify_event {
+ CORE_INIT,
+ LINK_UP,
+};
+
enum pci_barno {
+ NO_BAR = -1,
BAR_0,
BAR_1,
BAR_2,
@@ -55,13 +61,10 @@
* @bind: ops to perform when a EPC device has been bound to EPF device
* @unbind: ops to perform when a binding has been lost between a EPC device
* and EPF device
- * @linkup: ops to perform when the EPC device has established a connection with
- * a host system
*/
struct pci_epf_ops {
int (*bind)(struct pci_epf *epf);
void (*unbind)(struct pci_epf *epf);
- void (*linkup)(struct pci_epf *epf);
};
/**
@@ -92,10 +95,12 @@
/**
* struct pci_epf_bar - represents the BAR of EPF device
* @phys_addr: physical address that should be mapped to the BAR
+ * @addr: virtual address corresponding to the @phys_addr
* @size: the size of the address space present in BAR
*/
struct pci_epf_bar {
dma_addr_t phys_addr;
+ void *addr;
size_t size;
enum pci_barno barno;
int flags;
@@ -112,6 +117,8 @@
* @epc: the EPC device to which this EPF device is bound
* @driver: the EPF driver to which this EPF device is bound
* @list: to add pci_epf as a list of PCI endpoint functions to pci_epc
+ * @nb: notifier block to notify EPF of any EPC events (like linkup)
+ * @lock: mutex to protect pci_epf_ops
*/
struct pci_epf {
struct device dev;
@@ -125,6 +132,22 @@
struct pci_epc *epc;
struct pci_epf_driver *driver;
struct list_head list;
+ struct notifier_block nb;
+ /* mutex to protect against concurrent access of pci_epf_ops */
+ struct mutex lock;
+};
+
+/**
+ * struct pci_epf_msix_tbl - represents the MSIX table entry structure
+ * @msg_addr: Writes to this address will trigger MSIX interrupt in host
+ * @msg_data: Data that should be written to @msg_addr to trigger MSIX interrupt
+ * @vector_ctrl: Identifies if the function is prohibited from sending a message
+ * using this MSIX table entry
+ */
+struct pci_epf_msix_tbl {
+ u64 msg_addr;
+ u32 msg_data;
+ u32 vector_ctrl;
};
#define to_pci_epf(epf_dev) container_of((epf_dev), struct pci_epf, dev)
@@ -149,9 +172,9 @@
int __pci_epf_register_driver(struct pci_epf_driver *driver,
struct module *owner);
void pci_epf_unregister_driver(struct pci_epf_driver *driver);
-void *pci_epf_alloc_space(struct pci_epf *epf, size_t size, enum pci_barno bar);
+void *pci_epf_alloc_space(struct pci_epf *epf, size_t size, enum pci_barno bar,
+ size_t align);
void pci_epf_free_space(struct pci_epf *epf, void *addr, enum pci_barno bar);
int pci_epf_bind(struct pci_epf *epf);
void pci_epf_unbind(struct pci_epf *epf);
-void pci_epf_linkup(struct pci_epf *epf);
#endif /* __LINUX_PCI_EPF_H */
--
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