On 1/6/2021 12:31 PM, Somalapuram, Amaranath wrote:
-----Original Message----- From: Ferruh Yigit <ferruh.yi...@intel.com> Sent: Monday, January 4, 2021 7:54 PM To: Somalapuram, Amaranath <amaranath.somalapu...@amd.com>; dev@dpdk.org Subject: Re: [PATCH v4] net/axgbe: support sfp module EEPROM [CAUTION: External Email] On 12/22/2020 7:01 AM, asoma...@amd.com wrote:From: Amaranath Somalapuram <amaranath.somalapu...@amd.com> Adding API for get_module_eeprom and get_module_info.wq Signed-off-by: Amaranath Somalapuram <amaranath.somalapu...@amd.com> --- doc/guides/nics/features/axgbe.ini | 1 + drivers/net/axgbe/axgbe_ethdev.c | 2 + drivers/net/axgbe/axgbe_phy.h | 4 ++ drivers/net/axgbe/axgbe_phy_impl.c | 108 +++++++++++++++++++++++++++++ 4 files changed, 115 insertions(+) diff --git a/doc/guides/nics/features/axgbe.ini b/doc/guides/nics/features/axgbe.ini index 34df0d1ee..3a090183e 100644 --- a/doc/guides/nics/features/axgbe.ini +++ b/doc/guides/nics/features/axgbe.ini @@ -17,6 +17,7 @@ CRC offload = Y L3 checksum offload = Y L4 checksum offload = Y Basic stats = Y +Module EEPROM dump = Y Linux UIO = Y x86-32 = Y x86-64 = Y diff --git a/drivers/net/axgbe/axgbe_ethdev.c b/drivers/net/axgbe/axgbe_ethdev.c index cfe6aba73..22e05e8cb 100644 --- a/drivers/net/axgbe/axgbe_ethdev.c +++ b/drivers/net/axgbe/axgbe_ethdev.c @@ -257,6 +257,8 @@ static const struct eth_dev_ops axgbe_eth_dev_ops = { .timesync_adjust_time = axgbe_timesync_adjust_time, .timesync_read_time = axgbe_timesync_read_time, .timesync_write_time = axgbe_timesync_write_time, + .get_module_info = axgbe_get_module_info, + .get_module_eeprom = axgbe_get_module_eeprom, }; static int axgbe_phy_reset(struct axgbe_port *pdata) diff --git a/drivers/net/axgbe/axgbe_phy.h b/drivers/net/axgbe/axgbe_phy.h index 77ee20a31..d9d7fde41 100644 --- a/drivers/net/axgbe/axgbe_phy.h +++ b/drivers/net/axgbe/axgbe_phy.h @@ -188,5 +188,9 @@ #define DUPLEX_FULL 0x01 #define DUPLEX_UNKNOWN 0xff +int axgbe_get_module_info(struct rte_eth_dev *dev, + struct rte_eth_dev_module_info +*modinfo); int axgbe_get_module_eeprom(struct rte_eth_dev *dev, + struct rte_dev_eeprom_info *info); #endif /* PHY */ diff --git a/drivers/net/axgbe/axgbe_phy_impl.c b/drivers/net/axgbe/axgbe_phy_impl.c index 02236ec19..af18a8d51 100644 --- a/drivers/net/axgbe/axgbe_phy_impl.c +++ b/drivers/net/axgbe/axgbe_phy_impl.c @@ -141,12 +141,18 @@ enum axgbe_sfp_speed { #define AXGBE_SFP_EXTD_CC 31 +#define AXGBE_SFP_EEPROM_PAGE_SIZE 256 + struct axgbe_sfp_eeprom { u8 base[64]; u8 extd[32]; u8 vendor[32]; }; +struct axgbe_sfp_eeprom_module { + u8 base[AXGBE_SFP_EEPROM_PAGE_SIZE]; }; + #define AXGBE_BEL_FUSE_VENDOR "BEL-FUSE" #define AXGBE_BEL_FUSE_PARTNO "1GBT-SFP06" @@ -734,6 +740,108 @@ static int axgbe_phy_sfp_read_eeprom(struct axgbe_port *pdata) return ret; } +int axgbe_get_module_info(struct rte_eth_dev *dev, + struct rte_eth_dev_module_info *modinfo) +{ + struct axgbe_port *pdata = dev->data->dev_private; + struct axgbe_sfp_eeprom sfp_eeprom; + uint8_t eeprom_addr; + int ret; + + ret = axgbe_phy_get_comm_ownership(pdata); + + if (ret) + return -EIO; + + ret = axgbe_phy_sfp_get_mux(pdata); + + if (ret) { + PMD_DRV_LOG(ERR, "I2C error setting SFP MUX\n"); + goto put; + } + + eeprom_addr = 0; + ret = axgbe_phy_i2c_read(pdata, AXGBE_SFP_SERIAL_ID_ADDRESS, + &eeprom_addr, sizeof(eeprom_addr), + &sfp_eeprom, sizeof(sfp_eeprom)); + + if (ret) { + PMD_DRV_LOG(ERR, "I2C error reading SFP EEPROM\n"); + goto put; + } + + if (sfp_eeprom.extd[AXGBE_SFP_EXTD_SFF_8472] != 0xff) {The 'else' case of this check seems wrong, which returns success but doesn't set modinfo correctly. I have used the reference code from i40e_ethdev.c and ixgbe_ethdev.c. let me know your inputs.
I am not sure what exactly you are referencing in i40e & ixgbe, as far as I can see there is no similar usage on them, if there is please show it to me.
Above issue is, what if "sfp_eeprom.extd[AXGBE_SFP_EXTD_SFF_8472] == 0xff", what will happen in that case? As far as I can see in that case function returns success, but the 'modinfo' is not updated at all, am I missing something?
+ if (sfp_eeprom.extd[AXGBE_SFP_EXTD_SFF_8472] == 0) { + modinfo->type = RTE_ETH_MODULE_SFF_8079; + modinfo->eeprom_len = RTE_ETH_MODULE_SFF_8079_LEN; + } else { + modinfo->type = RTE_ETH_MODULE_SFF_8472; + modinfo->eeprom_len = RTE_ETH_MODULE_SFF_8472_LEN; + } + } + +put: + axgbe_phy_sfp_put_mux(pdata); + axgbe_phy_put_comm_ownership(pdata); + return ret; +} +
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