diff options
| author |   Raghu Vatsavayi <rvatsavayi@caviumnetworks.com> | 2016-06-14 16:54:48 -0700 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2016-06-15 21:44:32 -0700 |
| commit | a5b3788881289148ac34e6aeeb678fadee644bc9 (patch) | |
| tree | 36aa189474a4d221e0b92abeb4253f8e499c2f49 /drivers/net/ethernet | |
| parent | liquidio: RX desc alloc changes (diff) | |
| download | linux-dev-a5b3788881289148ac34e6aeeb678fadee644bc9.tar.xz linux-dev-a5b3788881289148ac34e6aeeb678fadee644bc9.zip | |
liquidio: Consider PTP for packet size calculations
This patch is to refactor packet size calculations to support PTP enabled
for 66xx and 68xx cards and also other cards that do not support PTP.
Signed-off-by: Derek Chickles <derek.chickles@caviumnetworks.com>
Signed-off-by: Satanand Burla <satananda.burla@caviumnetworks.com>
Signed-off-by: Felix Manlunas <felix.manlunas@caviumnetworks.com>
Signed-off-by: Raghu Vatsavayi <raghu.vatsavayi@caviumnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet')
| -rw-r--r-- | drivers/net/ethernet/cavium/liquidio/lio_main.c | 34 | ||||
| -rw-r--r-- | drivers/net/ethernet/cavium/liquidio/liquidio_common.h | 6 |
2 files changed, 25 insertions, 15 deletions
diff --git a/drivers/net/ethernet/cavium/liquidio/lio_main.c b/drivers/net/ethernet/cavium/liquidio/lio_main.c index 3a4f31fb434c..aa28790d935e 100644 --- a/drivers/net/ethernet/cavium/liquidio/lio_main.c +++ b/drivers/net/ethernet/cavium/liquidio/lio_main.c @@ -84,6 +84,8 @@ static int conf_type; module_param(conf_type, int, 0); MODULE_PARM_DESC(conf_type, "select octeon configuration 0 default 1 ovs"); +static int ptp_enable = 1; + /* Bit mask values for lio->ifstate */ #define LIO_IFSTATE_DROQ_OPS 0x01 #define LIO_IFSTATE_REGISTERED 0x02 @@ -1851,6 +1853,7 @@ liquidio_push_packet(u32 octeon_id, if (netdev) { int packet_was_received; struct lio *lio = GET_LIO(netdev); + struct octeon_device *oct = lio->oct_dev; /* Do not proceed if the interface is not in RUNNING state. */ if (!ifstate_check(lio, LIO_IFSTATE_RUNNING)) { @@ -1889,21 +1892,26 @@ liquidio_push_packet(u32 octeon_id, put_page(pg_info->page); } - if (rh->r_dh.has_hwtstamp) { - /* timestamp is included from the hardware at the - * beginning of the packet. - */ - if (ifstate_check(lio, - LIO_IFSTATE_RX_TIMESTAMP_ENABLED)) { - /* Nanoseconds are in the first 64-bits - * of the packet. + if (((oct->chip_id == OCTEON_CN66XX) || + (oct->chip_id == OCTEON_CN68XX)) && + ptp_enable) { + if (rh->r_dh.has_hwtstamp) { + /* timestamp is included from the hardware at + * the beginning of the packet. */ - memcpy(&ns, (skb->data), sizeof(ns)); - shhwtstamps = skb_hwtstamps(skb); - shhwtstamps->hwtstamp = - ns_to_ktime(ns + lio->ptp_adjust); + if (ifstate_check + (lio, LIO_IFSTATE_RX_TIMESTAMP_ENABLED)) { + /* Nanoseconds are in the first 64-bits + * of the packet. + */ + memcpy(&ns, (skb->data), sizeof(ns)); + shhwtstamps = skb_hwtstamps(skb); + shhwtstamps->hwtstamp = + ns_to_ktime(ns + + lio->ptp_adjust); + } + skb_pull(skb, sizeof(ns)); } - skb_pull(skb, sizeof(ns)); } skb->protocol = eth_type_trans(skb, skb->dev); diff --git a/drivers/net/ethernet/cavium/liquidio/liquidio_common.h b/drivers/net/ethernet/cavium/liquidio/liquidio_common.h index 00b3ef5661b5..84ffcae8466c 100644 --- a/drivers/net/ethernet/cavium/liquidio/liquidio_common.h +++ b/drivers/net/ethernet/cavium/liquidio/liquidio_common.h @@ -174,9 +174,11 @@ static inline void add_sg_size(struct octeon_sg_entry *sg_entry, /*------------------------- End Scatter/Gather ---------------------------*/ #define OCTNET_FRM_PTP_HEADER_SIZE 8 -#define OCTNET_FRM_HEADER_SIZE 30 /* PTP timestamp + VLAN + Ethernet */ -#define OCTNET_MIN_FRM_SIZE (64 + OCTNET_FRM_PTP_HEADER_SIZE) +#define OCTNET_FRM_HEADER_SIZE 22 /* VLAN + Ethernet */ + +#define OCTNET_MIN_FRM_SIZE 64 + #define OCTNET_MAX_FRM_SIZE (16000 + OCTNET_FRM_HEADER_SIZE) #define OCTNET_DEFAULT_FRM_SIZE (1500 + OCTNET_FRM_HEADER_SIZE) |