diff options
| author | Felix Manlunas <felix.manlunas@cavium.com> | 2016-12-30 04:04:47 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-12-30 06:26:03 +0300 |
| commit | 15d3afcc051f74d04a285c08594629172a1a9131 (patch) | |
| tree | 421f3786660ff2904956c38b2e78e7957598bc62 /drivers/net/ethernet/cavium/liquidio/octeon_config.h | |
| parent | 3a543ef479868e36c95935de320608a7e41466ca (diff) | |
| download | linux-15d3afcc051f74d04a285c08594629172a1a9131.tar.xz | |
liquidio: optimize reads from Octeon PCI console
Reads from Octeon PCI console are inefficient because before each read
operation, a dynamic mapping to Octeon DRAM is set up. This patch replaces
the repeated setup of a dynamic mapping with a one-time setup of a static
mapping.
Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com>
Signed-off-by: Raghu Vatsavayi <raghu.vatsavayi@cavium.com>
Signed-off-by: Derek Chickles <derek.chickles@cavium.com>
Signed-off-by: Satanand Burla <satananda.burla@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/cavium/liquidio/octeon_config.h')
| -rw-r--r-- | drivers/net/ethernet/cavium/liquidio/octeon_config.h | 10 |
1 files changed, 3 insertions, 7 deletions
diff --git a/drivers/net/ethernet/cavium/liquidio/octeon_config.h b/drivers/net/ethernet/cavium/liquidio/octeon_config.h index 1cb3514fc949..b3dc2e9651a8 100644 --- a/drivers/net/ethernet/cavium/liquidio/octeon_config.h +++ b/drivers/net/ethernet/cavium/liquidio/octeon_config.h @@ -429,15 +429,11 @@ struct octeon_config { /* The following config values are fixed and should not be modified. */ -/* Maximum address space to be mapped for Octeon's BAR1 index-based access. */ -#define MAX_BAR1_MAP_INDEX 2 +#define BAR1_INDEX_DYNAMIC_MAP 2 +#define BAR1_INDEX_STATIC_MAP 15 #define OCTEON_BAR1_ENTRY_SIZE (4 * 1024 * 1024) -/* BAR1 Index 0 to (MAX_BAR1_MAP_INDEX - 1) for normal mapped memory access. - * Bar1 register at MAX_BAR1_MAP_INDEX used by driver for dynamic access. - */ -#define MAX_BAR1_IOREMAP_SIZE ((MAX_BAR1_MAP_INDEX + 1) * \ - OCTEON_BAR1_ENTRY_SIZE) +#define MAX_BAR1_IOREMAP_SIZE (16 * OCTEON_BAR1_ENTRY_SIZE) /* Response lists - 1 ordered, 1 unordered-blocking, 1 unordered-nonblocking * NoResponse Lists are now maintained with each IQ. (Dec' 2007). |