Messages in this thread | | | From | Wesley Sheng <> | Subject | [PATCH 0/3] ntb_hw_switchtec: Added support of >=4G memory windows | Date | Thu, 22 Nov 2018 17:01:59 +0800 |
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Hi, Everyone,
This patch series adds support of >=4G memory windows.
Current Switchtec's BAR setup registers are limited to 32bits, corresponding to the maximum MW (memory window) size is <4G. Increase the MW sizes with the addition of the BAR Setup Extension Register for the upper 32bits of a 64bits MW size. This increases the MW range to between 4K and 2^63.
Additionally, we've made the following changes:
* debug print 64bit aligned crosslink BAR numbers * Fix the array size of NT req id mapping table
Tested with ntb_test.sh successfully based on NTB fixes series from Logan Gunthorpe <logang@deltatee.com> at https://github.com/sbates130272/linux-p2pmem on branch of ntb_multiport_fixes
Regards, Wesley
Paul Selles (2): ntb_hw_switchtec: debug print 64bit aligned crosslink BAR Numbers ntb_hw_switchtec: Added support of >=4G memory windows
Wesley Sheng (1): ntb_hw_switchtec: NT req id mapping table register entry number should be 512
drivers/ntb/hw/mscc/ntb_hw_switchtec.c | 11 ++++++++--- include/linux/switchtec.h | 10 +++++++--- 2 files changed, 15 insertions(+), 6 deletions(-)
-- 2.7.4
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