[dpdk-dev] Fwd: [PATCH] em: enable flash access, tested with Intel 82577LM

[Jiuling Bie <bie.jiuling@gmail.com>]

---
 drivers/net/e1000/base/e1000_osdep.h            | 18 ++++++++----------
 drivers/net/e1000/em_ethdev.c                   |  1 +
 lib/librte_eal/common/include/rte_pci_dev_ids.h |  1 +
 3 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/drivers/net/e1000/base/e1000_osdep.h
b/drivers/net/e1000/base/e1000_osdep.h
index d04ec73..ed08441 100644
--- a/drivers/net/e1000/base/e1000_osdep.h
+++ b/drivers/net/e1000/base/e1000_osdep.h
@@ -155,21 +155,19 @@ static inline uint32_t e1000_read_addr(volatile void*
addr)
 #define E1000_WRITE_REG_IO(hw, reg, value) \
        E1000_WRITE_REG(hw, reg, value)

-/*
- * Not implemented.
- */
-
 #define E1000_READ_FLASH_REG(hw, reg) \
-       (E1000_ACCESS_PANIC(E1000_READ_FLASH_REG, hw, reg, 0), 0)
+       rte_le_to_cpu_32(*(volatile uint32_t *)(hw->flash_address + reg))

 #define E1000_READ_FLASH_REG16(hw, reg)  \
-       (E1000_ACCESS_PANIC(E1000_READ_FLASH_REG16, hw, reg, 0), 0)
+       rte_le_to_cpu_16(*(volatile uint16_t *)(hw->flash_address + reg))

-#define E1000_WRITE_FLASH_REG(hw, reg, value)  \
-       E1000_ACCESS_PANIC(E1000_WRITE_FLASH_REG, hw, reg, value)
+#define E1000_WRITE_FLASH_REG(hw, reg, value) do { \
+       *(volatile uint32_t *)(hw->flash_address + reg) =
rte_cpu_to_le_32(value); \
+} while (0)

-#define E1000_WRITE_FLASH_REG16(hw, reg, value) \
-       E1000_ACCESS_PANIC(E1000_WRITE_FLASH_REG16, hw, reg, value)
+#define E1000_WRITE_FLASH_REG16(hw, reg, value) do { \
+       *(volatile uint16_t *)(hw->flash_address + reg) =
rte_cpu_to_le_16(value); \
+} while (0)

 #define STATIC static

diff --git a/drivers/net/e1000/em_ethdev.c b/drivers/net/e1000/em_ethdev.c
index 912f5dd..dd82bad 100644
--- a/drivers/net/e1000/em_ethdev.c
+++ b/drivers/net/e1000/em_ethdev.c
@@ -247,6 +247,7 @@ eth_em_dev_init(struct rte_eth_dev *eth_dev)
        }

        hw->hw_addr = (void *)pci_dev->mem_resource[0].addr;
+       hw->flash_address = (void *)pci_dev->mem_resource[1].addr;
        hw->device_id = pci_dev->id.device_id;
        adapter->stopped = 0;

diff --git a/lib/librte_eal/common/include/rte_pci_dev_ids.h
b/lib/librte_eal/common/include/rte_pci_dev_ids.h
index 265e66c..071cf8a 100644
--- a/lib/librte_eal/common/include/rte_pci_dev_ids.h
+++ b/lib/librte_eal/common/include/rte_pci_dev_ids.h
@@ -304,6 +304,7 @@ RTE_PCI_DEV_ID_DECL_EM(PCI_VENDOR_ID_INTEL,
E1000_DEV_ID_82572EI)
 RTE_PCI_DEV_ID_DECL_EM(PCI_VENDOR_ID_INTEL, E1000_DEV_ID_82573L)
 RTE_PCI_DEV_ID_DECL_EM(PCI_VENDOR_ID_INTEL, E1000_DEV_ID_82574L)
 RTE_PCI_DEV_ID_DECL_EM(PCI_VENDOR_ID_INTEL, E1000_DEV_ID_82574LA)
+RTE_PCI_DEV_ID_DECL_EM(PCI_VENDOR_ID_INTEL, E1000_DEV_ID_PCH_M_HV_LM)
 RTE_PCI_DEV_ID_DECL_EM(PCI_VENDOR_ID_INTEL, E1000_DEV_ID_82583V)

 /******************** Physical IGB devices from e1000_hw.h
********************/
--
1.9.1