* [dpdk-stable] [PATCH 1/2] net/ixgbe: fix defects of macro in VF [not found] <20200507061642.64969-1-guinanx.sun@intel.com> @ 2020-05-07 6:16 ` Guinan Sun 2020-05-07 6:16 ` [dpdk-stable] [PATCH 2/2] net/e1000: " Guinan Sun 1 sibling, 0 replies; 3+ messages in thread From: Guinan Sun @ 2020-05-07 6:16 UTC (permalink / raw) To: dev; +Cc: Guinan Sun, stable The defects in the macros UPDATE_VF_STAT and UPDATE_VF_STAT_36BIT exist. If latest is less than last, we will get wrong result. The patch fixes the defect. Fixes: abf7275bbaa2 ("ixgbe: move to drivers/net/") Cc: stable@dpdk.org Signed-off-by: Guinan Sun <guinanx.sun@intel.com> --- drivers/net/ixgbe/ixgbe_ethdev.c | 20 ++++++++++++++++++-- 1 file changed, 18 insertions(+), 2 deletions(-) diff --git a/drivers/net/ixgbe/ixgbe_ethdev.c b/drivers/net/ixgbe/ixgbe_ethdev.c index cf5f1fe70..08a964399 100644 --- a/drivers/net/ixgbe/ixgbe_ethdev.c +++ b/drivers/net/ixgbe/ixgbe_ethdev.c @@ -94,6 +94,10 @@ #define IXGBE_4_BIT_MASK RTE_LEN2MASK(IXGBE_4_BIT_WIDTH, uint8_t) #define IXGBE_8_BIT_WIDTH CHAR_BIT #define IXGBE_8_BIT_MASK UINT8_MAX +#define IXGBE_32_BIT_WIDTH (CHAR_BIT * 4) +#define IXGBE_32_BIT_MASK RTE_LEN2MASK(IXGBE_32_BIT_WIDTH, uint32_t) +#define IXGBE_36_BIT_WIDTH (CHAR_BIT * 4 + IXGBE_4_BIT_WIDTH) +#define IXGBE_36_BIT_MASK RTE_LEN2MASK(IXGBE_36_BIT_WIDTH, uint64_t) #define IXGBEVF_PMD_NAME "rte_ixgbevf_pmd" /* PMD name */ @@ -388,7 +392,13 @@ static int ixgbe_wait_for_link_up(struct ixgbe_hw *hw); #define UPDATE_VF_STAT(reg, last, cur) \ { \ uint32_t latest = IXGBE_READ_REG(hw, reg); \ - cur += (latest - last) & UINT_MAX; \ + u64 stat = 0; \ + if (latest >= last) \ + stat = latest - last; \ + else \ + stat = (u64)((latest + \ + ((u64)1 << IXGBE_32_BIT_WIDTH)) - last);\ + cur += stat & IXGBE_32_BIT_MASK; \ last = latest; \ } @@ -397,7 +407,13 @@ static int ixgbe_wait_for_link_up(struct ixgbe_hw *hw); u64 new_lsb = IXGBE_READ_REG(hw, lsb); \ u64 new_msb = IXGBE_READ_REG(hw, msb); \ u64 latest = ((new_msb << 32) | new_lsb); \ - cur += (0x1000000000LL + latest - last) & 0xFFFFFFFFFLL; \ + u64 stat = 0; \ + if (latest >= last) \ + stat = latest - last; \ + else \ + stat = (u64)((latest + \ + ((u64)1 << IXGBE_36_BIT_WIDTH)) - last); \ + cur += stat & IXGBE_36_BIT_MASK; \ last = latest; \ } -- 2.17.1 ^ permalink raw reply [flat|nested] 3+ messages in thread
* [dpdk-stable] [PATCH 2/2] net/e1000: fix defects of macro in VF [not found] <20200507061642.64969-1-guinanx.sun@intel.com> 2020-05-07 6:16 ` [dpdk-stable] [PATCH 1/2] net/ixgbe: fix defects of macro in VF Guinan Sun @ 2020-05-07 6:16 ` Guinan Sun 1 sibling, 0 replies; 3+ messages in thread From: Guinan Sun @ 2020-05-07 6:16 UTC (permalink / raw) To: dev; +Cc: Guinan Sun, stable The defects in the macros UPDATE_VF_STAT and UPDATE_VF_STAT_36BIT exist. If latest is less than last, we will get wrong result. The patch fixes the defect. Fixes: d15fcf76c8b7 ("e1000: move to drivers/net/") Cc: stable@dpdk.org Signed-off-by: Guinan Sun <guinanx.sun@intel.com> --- drivers/net/e1000/igb_ethdev.c | 14 +++++++++++--- 1 file changed, 11 insertions(+), 3 deletions(-) diff --git a/drivers/net/e1000/igb_ethdev.c b/drivers/net/e1000/igb_ethdev.c index 520fba8fa..d6032fd65 100644 --- a/drivers/net/e1000/igb_ethdev.c +++ b/drivers/net/e1000/igb_ethdev.c @@ -47,6 +47,8 @@ #define IGB_4_BIT_MASK RTE_LEN2MASK(IGB_4_BIT_WIDTH, uint8_t) #define IGB_8_BIT_WIDTH CHAR_BIT #define IGB_8_BIT_MASK UINT8_MAX +#define IGB_32_BIT_WIDTH (CHAR_BIT * 4) +#define IGB_32_BIT_MASK RTE_LEN2MASK(IGB_32_BIT_WIDTH, uint32_t) /* Additional timesync values. */ #define E1000_CYCLECOUNTER_MASK 0xffffffffffffffffULL @@ -263,9 +265,15 @@ static int igb_filter_restore(struct rte_eth_dev *dev); */ #define UPDATE_VF_STAT(reg, last, cur) \ { \ - u32 latest = E1000_READ_REG(hw, reg); \ - cur += (latest - last) & UINT_MAX; \ - last = latest; \ + uint64_t latest = E1000_READ_REG(hw, reg); \ + uint64_t stat = 0; \ + if (latest >= last) \ + stat = latest - last; \ + else \ + stat = (uint64_t)((latest + \ + ((uint64_t)1 << IGB_32_BIT_WIDTH)) - last);\ + cur += stat & IGB_32_BIT_MASK; \ + last = latest; \ } #define IGB_FC_PAUSE_TIME 0x0680 -- 2.17.1 ^ permalink raw reply [flat|nested] 3+ messages in thread
[parent not found: <20200508015913.48764-1-guinanx.sun@intel.com>]
* [dpdk-stable] [PATCH 1/2] net/ixgbe: fix defects of macro in VF [not found] <20200508015913.48764-1-guinanx.sun@intel.com> @ 2020-05-08 1:59 ` Guinan Sun 0 siblings, 0 replies; 3+ messages in thread From: Guinan Sun @ 2020-05-08 1:59 UTC (permalink / raw) To: dev; +Cc: Guinan Sun, stable The defects in the macros UPDATE_VF_STAT and UPDATE_VF_STAT_36BIT exist. If latest is less than last, we will get wrong result. The patch fixes the defect. Fixes: abf7275bbaa2 ("ixgbe: move to drivers/net/") Cc: stable@dpdk.org Signed-off-by: Guinan Sun <guinanx.sun@intel.com> --- drivers/net/ixgbe/ixgbe_ethdev.c | 20 ++++++++++++++++++-- 1 file changed, 18 insertions(+), 2 deletions(-) diff --git a/drivers/net/ixgbe/ixgbe_ethdev.c b/drivers/net/ixgbe/ixgbe_ethdev.c index cf5f1fe70..08a964399 100644 --- a/drivers/net/ixgbe/ixgbe_ethdev.c +++ b/drivers/net/ixgbe/ixgbe_ethdev.c @@ -94,6 +94,10 @@ #define IXGBE_4_BIT_MASK RTE_LEN2MASK(IXGBE_4_BIT_WIDTH, uint8_t) #define IXGBE_8_BIT_WIDTH CHAR_BIT #define IXGBE_8_BIT_MASK UINT8_MAX +#define IXGBE_32_BIT_WIDTH (CHAR_BIT * 4) +#define IXGBE_32_BIT_MASK RTE_LEN2MASK(IXGBE_32_BIT_WIDTH, uint32_t) +#define IXGBE_36_BIT_WIDTH (CHAR_BIT * 4 + IXGBE_4_BIT_WIDTH) +#define IXGBE_36_BIT_MASK RTE_LEN2MASK(IXGBE_36_BIT_WIDTH, uint64_t) #define IXGBEVF_PMD_NAME "rte_ixgbevf_pmd" /* PMD name */ @@ -388,7 +392,13 @@ static int ixgbe_wait_for_link_up(struct ixgbe_hw *hw); #define UPDATE_VF_STAT(reg, last, cur) \ { \ uint32_t latest = IXGBE_READ_REG(hw, reg); \ - cur += (latest - last) & UINT_MAX; \ + u64 stat = 0; \ + if (latest >= last) \ + stat = latest - last; \ + else \ + stat = (u64)((latest + \ + ((u64)1 << IXGBE_32_BIT_WIDTH)) - last);\ + cur += stat & IXGBE_32_BIT_MASK; \ last = latest; \ } @@ -397,7 +407,13 @@ static int ixgbe_wait_for_link_up(struct ixgbe_hw *hw); u64 new_lsb = IXGBE_READ_REG(hw, lsb); \ u64 new_msb = IXGBE_READ_REG(hw, msb); \ u64 latest = ((new_msb << 32) | new_lsb); \ - cur += (0x1000000000LL + latest - last) & 0xFFFFFFFFFLL; \ + u64 stat = 0; \ + if (latest >= last) \ + stat = latest - last; \ + else \ + stat = (u64)((latest + \ + ((u64)1 << IXGBE_36_BIT_WIDTH)) - last); \ + cur += stat & IXGBE_36_BIT_MASK; \ last = latest; \ } -- 2.17.1 ^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2020-05-08 2:07 UTC | newest] Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- [not found] <20200507061642.64969-1-guinanx.sun@intel.com> 2020-05-07 6:16 ` [dpdk-stable] [PATCH 1/2] net/ixgbe: fix defects of macro in VF Guinan Sun 2020-05-07 6:16 ` [dpdk-stable] [PATCH 2/2] net/e1000: " Guinan Sun [not found] <20200508015913.48764-1-guinanx.sun@intel.com> 2020-05-08 1:59 ` [dpdk-stable] [PATCH 1/2] net/ixgbe: " Guinan Sun
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