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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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248de22e63
The original code for __i40e_chk_linearize didn't take into account the fact that if a fragment is 16K in size or larger it has to be split over 2 descriptors and the smaller of those 2 descriptors will be on the trailing edge of the transmit. As a result we can get into situations where we didn't catch requests that could result in a Tx hang. This patch takes care of that by subtracting the length of all but the trailing edge of the stale fragment before we test for sum. By doing this we can guarantee that we have all cases covered, including the case of a fragment that spans multiple descriptors. We don't need to worry about checking the inner portions of this since 12K is the maximum aligned DMA size and that is larger than any MSS will ever be since the MTU limit for jumbos is something on the order of 9K. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> |
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| .. | ||
| i40e_adminq_cmd.h | ||
| i40e_adminq.c | ||
| i40e_adminq.h | ||
| i40e_alloc.h | ||
| i40e_common.c | ||
| i40e_devids.h | ||
| i40e_hmc.h | ||
| i40e_lan_hmc.h | ||
| i40e_osdep.h | ||
| i40e_prototype.h | ||
| i40e_register.h | ||
| i40e_status.h | ||
| i40e_trace.h | ||
| i40e_txrx.c | ||
| i40e_txrx.h | ||
| i40e_type.h | ||
| i40evf_client.c | ||
| i40evf_client.h | ||
| i40evf_ethtool.c | ||
| i40evf_main.c | ||
| i40evf_virtchnl.c | ||
| i40evf.h | ||
| Makefile | ||