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net/qede: define PCI config space specific osals

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This patch defines various PCI config space access APIs
in order to read and find IOV specific PCI capabilities.

With these definitions implemented, it enables the base
driver to do SR-IOV specific initialization and HW specific
configuration required from PF-PMD driver instance.

Signed-off-by: Manish Chopra <manishc@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: Rasesh Mody <rmody@marvell.com>
This commit is contained in:
Manish Chopra 2020-09-25 04:55:04 -07:00 committed by Ferruh Yigit
parent e00d2b4cea
commit 92c6786e85
7 changed files with 53 additions and 24 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
drivers/net/qede/base/bcm_osal.h
View File

@ -21,6 +21,7 @@
#include <rte_ether.h>
#include <rte_io.h>
#include <rte_version.h>
#include <rte_bus_pci.h>
/* Forward declaration */
struct ecore_dev;
@ -285,11 +286,14 @@ typedef struct osal_list_t {
OSAL_LIST_PUSH_HEAD(new_entry, list)
/* PCI config space */
#define OSAL_PCI_READ_CONFIG_BYTE(dev, address, dst) nothing
#define OSAL_PCI_READ_CONFIG_WORD(dev, address, dst) nothing
#define OSAL_PCI_READ_CONFIG_DWORD(dev, address, dst) nothing
#define OSAL_PCI_FIND_EXT_CAPABILITY(dev, pcie_id) 0
#define OSAL_PCI_READ_CONFIG_BYTE(dev, address, dst) \
rte_pci_read_config((dev)->pci_dev, dst, 1, address)
#define OSAL_PCI_READ_CONFIG_WORD(dev, address, dst) \
rte_pci_read_config((dev)->pci_dev, dst, 2, address)
#define OSAL_PCI_READ_CONFIG_DWORD(dev, address, dst) \
rte_pci_read_config((dev)->pci_dev, dst, 4, address)
#define OSAL_PCI_FIND_EXT_CAPABILITY(dev, cap) \
rte_pci_find_ext_capability((dev)->pci_dev, cap)
#define OSAL_PCI_FIND_CAPABILITY(dev, pcie_id) 0
#define OSAL_PCI_WRITE_CONFIG_WORD(dev, address, val) nothing
#define OSAL_BAR_SIZE(dev, bar_id) 0

3
drivers/net/qede/base/ecore.h
View File

@ -937,6 +937,9 @@ struct ecore_dev {
struct ecore_dbg_feature dbg_features[DBG_FEATURE_NUM];
struct ecore_dbg_params dbg_params;
osal_mutex_t dbg_lock;
/* DPDK specific ecore field */
struct rte_pci_device *pci_dev;
};
enum ecore_hsi_def_type {

6
drivers/net/qede/base/ecore_dev.c
View File

@ -2787,7 +2787,7 @@ static enum _ecore_status_t ecore_hw_init_chip(struct ecore_dev *p_dev,
return ECORE_IO;
}
OSAL_PCI_READ_CONFIG_WORD(p_dev, pos + PCI_EXP_DEVCTL, &ctrl);
OSAL_PCI_READ_CONFIG_WORD(p_dev, pos + RTE_PCI_EXP_DEVCTL, &ctrl);
wr_mbs = (ctrl & PCI_EXP_DEVCTL_PAYLOAD) >> 5;
ecore_wr(p_hwfn, p_ptt, PSWRQ2_REG_WR_MBS0, wr_mbs);
@ -5499,9 +5499,9 @@ static enum _ecore_status_t ecore_get_dev_info(struct ecore_hwfn *p_hwfn,
u32 tmp;
/* Read Vendor Id / Device Id */
OSAL_PCI_READ_CONFIG_WORD(p_dev, PCICFG_VENDOR_ID_OFFSET,
OSAL_PCI_READ_CONFIG_WORD(p_dev, RTE_PCI_VENDOR_ID,
&p_dev->vendor_id);
OSAL_PCI_READ_CONFIG_WORD(p_dev, PCICFG_DEVICE_ID_OFFSET,
OSAL_PCI_READ_CONFIG_WORD(p_dev, RTE_PCI_DEVICE_ID,
&p_dev->device_id);
/* Determine type */

28
drivers/net/qede/base/ecore_sriov.c
View File

@ -417,15 +417,16 @@ static enum _ecore_status_t ecore_iov_pci_cfg_info(struct ecore_dev *p_dev)
int pos = iov->pos;
DP_VERBOSE(p_dev, ECORE_MSG_IOV, "sriov ext pos %d\n", pos);
OSAL_PCI_READ_CONFIG_WORD(p_dev, pos + PCI_SRIOV_CTRL, &iov->ctrl);
OSAL_PCI_READ_CONFIG_WORD(p_dev, pos + RTE_PCI_SRIOV_CTRL, &iov->ctrl);
OSAL_PCI_READ_CONFIG_WORD(p_dev, pos + RTE_PCI_SRIOV_TOTAL_VF,
&iov->total_vfs);
OSAL_PCI_READ_CONFIG_WORD(p_dev,
pos + PCI_SRIOV_TOTAL_VF, &iov->total_vfs);
OSAL_PCI_READ_CONFIG_WORD(p_dev,
pos + PCI_SRIOV_INITIAL_VF,
pos + RTE_PCI_SRIOV_INITIAL_VF,
&iov->initial_vfs);
OSAL_PCI_READ_CONFIG_WORD(p_dev, pos + PCI_SRIOV_NUM_VF, &iov->num_vfs);
OSAL_PCI_READ_CONFIG_WORD(p_dev, pos + RTE_PCI_SRIOV_NUM_VF,
&iov->num_vfs);
if (iov->num_vfs) {
/* @@@TODO - in future we might want to add an OSAL here to
* allow each OS to decide on its own how to act.
@ -437,20 +438,21 @@ static enum _ecore_status_t ecore_iov_pci_cfg_info(struct ecore_dev *p_dev)
}
OSAL_PCI_READ_CONFIG_WORD(p_dev,
pos + PCI_SRIOV_VF_OFFSET, &iov->offset);
pos + RTE_PCI_SRIOV_VF_OFFSET, &iov->offset);
OSAL_PCI_READ_CONFIG_WORD(p_dev,
pos + PCI_SRIOV_VF_STRIDE, &iov->stride);
pos + RTE_PCI_SRIOV_VF_STRIDE, &iov->stride);
OSAL_PCI_READ_CONFIG_WORD(p_dev,
pos + PCI_SRIOV_VF_DID, &iov->vf_device_id);
OSAL_PCI_READ_CONFIG_WORD(p_dev, pos + RTE_PCI_SRIOV_VF_DID,
&iov->vf_device_id);
OSAL_PCI_READ_CONFIG_DWORD(p_dev,
pos + PCI_SRIOV_SUP_PGSIZE, &iov->pgsz);
pos + RTE_PCI_SRIOV_SUP_PGSIZE, &iov->pgsz);
OSAL_PCI_READ_CONFIG_DWORD(p_dev, pos + PCI_SRIOV_CAP, &iov->cap);
OSAL_PCI_READ_CONFIG_DWORD(p_dev, pos + RTE_PCI_SRIOV_CAP, &iov->cap);
OSAL_PCI_READ_CONFIG_BYTE(p_dev, pos + PCI_SRIOV_FUNC_LINK, &iov->link);
OSAL_PCI_READ_CONFIG_BYTE(p_dev, pos + RTE_PCI_SRIOV_FUNC_LINK,
&iov->link);
DP_VERBOSE(p_dev, ECORE_MSG_IOV, "IOV info: nres %d, cap 0x%x,"
"ctrl 0x%x, total %d, initial %d, num vfs %d, offset %d,"
@ -669,7 +671,7 @@ enum _ecore_status_t ecore_iov_hw_info(struct ecore_hwfn *p_hwfn)
/* Learn the PCI configuration */
pos = OSAL_PCI_FIND_EXT_CAPABILITY(p_hwfn->p_dev,
PCI_EXT_CAP_ID_SRIOV);
RTE_PCI_EXT_CAP_ID_SRIOV);
if (!pos) {
DP_VERBOSE(p_hwfn, ECORE_MSG_IOV, "No PCIe IOV support\n");
return ECORE_SUCCESS;

2
drivers/net/qede/base/meson.build
View File

@ -52,6 +52,6 @@ foreach flag: error_cflags
endforeach
base_lib = static_library('qede_base', sources,
dependencies: static_rte_net,
dependencies: [static_rte_net, static_rte_bus_pci],
c_args: c_args)
base_objs = base_lib.extract_all_objects()

1
drivers/net/qede/qede_main.c
View File

@ -37,6 +37,7 @@ static void qed_init_pci(struct ecore_dev *edev, struct rte_pci_device *pci_dev)
edev->regview = pci_dev->mem_resource[0].addr;
edev->doorbells = pci_dev->mem_resource[2].addr;
edev->db_size = pci_dev->mem_resource[2].len;
edev->pci_dev = pci_dev;
}
static int

23
lib/librte_pci/rte_pci.h
View File

@ -30,12 +30,31 @@ extern "C" {
#define RTE_PCI_CFG_SPACE_SIZE 256
#define RTE_PCI_CFG_SPACE_EXP_SIZE 4096
#define RTE_PCI_VENDOR_ID 0x00 /* 16 bits */
#define RTE_PCI_DEVICE_ID 0x02 /* 16 bits */
/* PCI Express capability registers */
#define RTE_PCI_EXP_DEVCTL 8 /* Device Control */
/* Extended Capabilities (PCI-X 2.0 and Express) */
#define RTE_PCI_EXT_CAP_ID(header) (header & 0x0000ffff)
#define RTE_PCI_EXT_CAP_NEXT(header) ((header >> 20) & 0xffc)
#define RTE_PCI_EXT_CAP_ID_ERR 0x01 /* Advanced Error Reporting */
#define RTE_PCI_EXT_CAP_ID_DSN 0x03 /* Device Serial Number */
#define RTE_PCI_EXT_CAP_ID_ERR 0x01 /* Advanced Error Reporting */
#define RTE_PCI_EXT_CAP_ID_DSN 0x03 /* Device Serial Number */
#define RTE_PCI_EXT_CAP_ID_SRIOV 0x10 /* SR-IOV*/
/* Single Root I/O Virtualization */
#define RTE_PCI_SRIOV_CAP 0x04 /* SR-IOV Capabilities */
#define RTE_PCI_SRIOV_CTRL 0x08 /* SR-IOV Control */
#define RTE_PCI_SRIOV_INITIAL_VF 0x0c /* Initial VFs */
#define RTE_PCI_SRIOV_TOTAL_VF 0x0e /* Total VFs */
#define RTE_PCI_SRIOV_NUM_VF 0x10 /* Number of VFs */
#define RTE_PCI_SRIOV_FUNC_LINK 0x12 /* Function Dependency Link */
#define RTE_PCI_SRIOV_VF_OFFSET 0x14 /* First VF Offset */
#define RTE_PCI_SRIOV_VF_STRIDE 0x16 /* Following VF Stride */
#define RTE_PCI_SRIOV_VF_DID 0x1a /* VF Device ID */
#define RTE_PCI_SRIOV_SUP_PGSIZE 0x1c /* Supported Page Sizes */
/** Formatting string for PCI device identifier: Ex: 0000:00:01.0 */
#define PCI_PRI_FMT "%.4" PRIx32 ":%.2" PRIx8 ":%.2" PRIx8 ".%" PRIx8